1
|
Zheng T, Zheng M, Li S, Liu C, Li X, Wang M. In vivo tracing of cyromazine and three neonicotinoids in cowpea under field conditions by solid-phase microextraction combined with ultra-performance liquid chromatography-tandem mass spectrometry. Anal Chim Acta 2024; 1314:342796. [PMID: 38876515 DOI: 10.1016/j.aca.2024.342796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2024] [Revised: 05/27/2024] [Accepted: 05/28/2024] [Indexed: 06/16/2024]
Abstract
BACKGROUND Excessive pesticide residues in agricultural products could accumulate in organisms through the food chain, causing potential harm to human health. The investigation of dissipation kinetics and residues of pesticides in crops is crucial for the scientific application of pesticides and the mitigation of their adverse effects on human health. In vivo solid-phase microextraction (in vivo SPME) has unique advantages, but the research on field plants is still lacking and the quantitative correction methods need to be further developed. RESULTS A method combining in vivo solid-phase microextraction with ultra-performance liquid chromatography-tandem mass spectrometry (in vivo SPME-UPLC-MS/MS) was developed to monitor the presence of acetamiprid, cyromazine, thiamethoxam and imidacloprid in cowpea fruits grown in the field. The sampling rates (Rs) were determined using both in vitro SPME in homogenized cowpea samples and in vivo SPME in intact cowpea fruit samples. The in vivo-Rs values were significantly higher than the in vitro-Rs for the same analyte, which were used for in vivo SPME correction. The accuracy of this method was confirmed by comparison with a QuEChERS-based approach and subsequently applied to trace pesticide residues in field-grown cowpea fruits. The residual concentrations of each pesticide positively correlated with application doses. After 7 days of application at two different doses, all of the pesticides had residual concentrations below China's maximum residue limits. Both experimental data and predictions indicated that a safe preharvest interval for these pesticides is 7 days; however, if the European Union standards are to be met, a safe preharvest interval for cyromazine should be at least 13 days. SIGNIFICANCE This study highlights the advantages of in vivo SPME for simultaneous analysis and tracking of multiple pesticides in crops under field conditions. This technique is environmentally friendly, minimally invasive, highly sensitive, accurate, rapid, user-friendly, cost-effective, and capable of providing precise and timely data for long-term pesticide surveillance. Consequently, it furnishes valuable insights to guide the safe utilization of pesticides in agricultural production.
Collapse
Affiliation(s)
- Tengfei Zheng
- College of Food Science & Technology, Huazhong Agricultural University, Wuhan, 430070, China; Hubei Key Laboratory of Fruit & Vegetable Processing & Quality Control (Huazhong Agricultural University), Wuhan, 430070, China; Analysis and Test Center, Chinese Academy of Tropical Agricultural Sciences, Hainan, 571101, China
| | - Meijie Zheng
- College of Food Science & Technology, Huazhong Agricultural University, Wuhan, 430070, China; Hubei Key Laboratory of Fruit & Vegetable Processing & Quality Control (Huazhong Agricultural University), Wuhan, 430070, China; Analysis and Test Center, Chinese Academy of Tropical Agricultural Sciences, Hainan, 571101, China
| | - Shuhuai Li
- Analysis and Test Center, Chinese Academy of Tropical Agricultural Sciences, Hainan, 571101, China
| | - Chunhua Liu
- Analysis and Test Center, Chinese Academy of Tropical Agricultural Sciences, Hainan, 571101, China
| | - Xiujuan Li
- College of Food Science & Technology, Huazhong Agricultural University, Wuhan, 430070, China; Key Laboratory of Environment Correlative Dietology (Ministry of Education), Wuhan, 430070, China; Hubei Key Laboratory of Fruit & Vegetable Processing & Quality Control (Huazhong Agricultural University), Wuhan, 430070, China.
| | - Mingyue Wang
- Analysis and Test Center, Chinese Academy of Tropical Agricultural Sciences, Hainan, 571101, China.
| |
Collapse
|
2
|
Tian F, Lu J, Qiao C, Wang C, Pang T, Guo L, Li J, Pang R, Xie H. Dissipation behavior and risk assessment of imidacloprid and its metabolites in apple from field to products. CHEMOSPHERE 2024; 359:142309. [PMID: 38735491 DOI: 10.1016/j.chemosphere.2024.142309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2024] [Revised: 05/05/2024] [Accepted: 05/09/2024] [Indexed: 05/14/2024]
Abstract
Pesticides play vital roles in controlling pests and boosting crop yields. Imidacloprid is widely used all over the world and may form in agricultural products. The presence of pesticide residues in apples raises serious health concerns. Understanding the residual fate of imidacloprid is critical for food safety and human health. In this study, the dissipation behavior, metabolism, household processing and risk assessment of imidacloprid and its metabolites in apple were investigated from filed to products. Field experiment results suggested that the half-lives of imidacloprid at 5 times the recommended dosage was 1.5 times that of the standard dosage. And the final residues of imidacloprid were less than the established maximum residue limits (MRLs). Clarification and simmering had little effect on the reduction the residues of imidacloprid and its metabolites. The calculated processing factors were lower than 1 for imidacloprid and its metabolites, implying that the residual ratios of imidacloprid and its metabolites in each steps of the food processing were reduced. The risk quotients were <1 for all Chinese people, indicating that acceptable risks associated with dietary exposure to imidacloprid in apple. However, the higher risks were observed in young people than adults, and females faced higher risks than males. Given high residue levels in pomace, imidacloprid and its metabolites should be further studied in commercial byproducts.
Collapse
Affiliation(s)
- Fajun Tian
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, 450009, China; Zhongyuan Research Center, Chinese Academy of Agricultural Sciences, Xinxiang, 453514, China.
| | - Junfeng Lu
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, 450009, China
| | - Chengkui Qiao
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, 450009, China; Zhongyuan Research Center, Chinese Academy of Agricultural Sciences, Xinxiang, 453514, China
| | - Caixia Wang
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, 450009, China
| | - Tao Pang
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, 450009, China
| | - Linlin Guo
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, 450009, China; Zhongyuan Research Center, Chinese Academy of Agricultural Sciences, Xinxiang, 453514, China
| | - Jun Li
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, 450009, China
| | - Rongli Pang
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, 450009, China; Zhongyuan Research Center, Chinese Academy of Agricultural Sciences, Xinxiang, 453514, China
| | - Hanzhong Xie
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, 450009, China.
| |
Collapse
|
3
|
Tian F, Lu J, Qiao C, Wang C, Pang T, Guo L, Li J, Pang R, Xie H. Effects of storage and processing on the residual distribution and behavior of five preservatives and their metabolites in pomegranate. Food Chem 2024; 455:139905. [PMID: 38833870 DOI: 10.1016/j.foodchem.2024.139905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Revised: 05/12/2024] [Accepted: 05/28/2024] [Indexed: 06/06/2024]
Abstract
Pomegranate are often treated with preservatives during storage. This study investigated the effects of storage and food processing on the residual behavior of the five commonly used preservatives (prochloraz, thiophanate-methyl, pyrimethanil, imazalil, and difenoconazole) and their metabolites in pomegranate and its products. The LOQs for all target compounds were 0.001 mg kg-1. The residue levels of five preservatives in the calyx was highest, followed by the peel, stalk, septum, umbilicus, and seed. For the migration ability, the five preservatives from pomegranate peel to seed was negatively correlated with their octanol/water partition coefficients. The processing factors of each procedures of juice, wine, vinegar, and pectin processing were <1. Nevertheless, the PF values in drying peel during the overall process ranged from 1.26 to 4.09. Hence, it is worth noting that consumption of pomegranate essential oil and drying peel may pose a potential risk to the health of consumers.
Collapse
Affiliation(s)
- Fajun Tian
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, China; Zhongyuan Research Center, Chinese Academy of Agricultural Sciences, Xinxiang 453514, China.
| | - Junfeng Lu
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, China
| | - Chengkui Qiao
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, China; Zhongyuan Research Center, Chinese Academy of Agricultural Sciences, Xinxiang 453514, China
| | - Caixia Wang
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, China
| | - Tao Pang
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, China
| | - Linlin Guo
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, China; Zhongyuan Research Center, Chinese Academy of Agricultural Sciences, Xinxiang 453514, China
| | - Jun Li
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, China
| | - Rongli Pang
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, China; Zhongyuan Research Center, Chinese Academy of Agricultural Sciences, Xinxiang 453514, China
| | - Hanzhong Xie
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, China.
| |
Collapse
|
4
|
Abdallah OI, Abd El-Hamid RM, Ahmed NS, Alhewairini SS, Abdel Ghani SB. Development of Green and Facile Sample Preparation Method for Determination of Seven Neonicotinoids in Fresh Vegetables, and Dissipation and Risk Assessment of Imidacloprid and Dinotefuran. Foods 2024; 13:1106. [PMID: 38611410 PMCID: PMC11011385 DOI: 10.3390/foods13071106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 03/19/2024] [Accepted: 04/01/2024] [Indexed: 04/14/2024] Open
Abstract
A facile procedure for extracting and determining seven neonicotinoids was developed. Water was the only extraction solvent without phase separation and cleanup steps. The method was validated according to European Union standards, and the values obtained were compared with the criteria. The accuracy values were between 99.8% (thiamethoxam) and 106.8% (clothianidin) at the spiking levels of 0.01, 0.1, and 1 mg/kg in the tested matrices. The precision as pooled RSD values was ≤6.1% (intra-day) and ≤6.9% (inter-day). The limit of quantification was set and tested at 0.01 mg/kg. The matrix effect was evaluated, and all matrices had a suppressive effect. The matrix of the cucumber was the most effective, with -20.9% for dinotefuran and an average of -9.8% for all compounds, while the tomato matrix had the slightest effect. Real marketed samples were analyzed using the developed and QuEChERS (Quick, Easy, Cheap, Effective, Rugged, and Safe) methods; the results were not significantly different. A supervised field trial was conducted in the open field to study the dissipation patterns of imidacloprid and dinotefuran in tomatoes. The dissipation of both compounds followed first-order kinetics. The half-life (T½) values were 3.4 and 2.5 days, with dissipation rates k of 0.2013 and 0.2781 days, respectively. Following the EU-MRL database, the calculated pre-harvest interval (PHI) values were 7 and 14 days for imidacloprid and dinotefuran, respectively, and 3 days for both compounds following Codex Alimentarius regulations. The risk of imidacloprid and dinotefuran residues was estimated from chronic and acute perspectives. The risk factors of dinotefuran were lower than those of imidacloprid. Nonetheless, the highest expected residues of both compounds were below the tolerance limits.
Collapse
Affiliation(s)
- Osama I Abdallah
- Department of Pesticide Residues and Environmental Pollution, Central Agricultural Pesticide Laboratory, Agricultural Research Center, Giza 12618, Egypt
| | - Rania M Abd El-Hamid
- Department of Pesticide Residues and Environmental Pollution, Central Agricultural Pesticide Laboratory, Agricultural Research Center, Giza 12618, Egypt
| | - Nevein S Ahmed
- Department of Pesticide Residues and Environmental Pollution, Central Agricultural Pesticide Laboratory, Agricultural Research Center, Giza 12618, Egypt
| | - Saleh S Alhewairini
- Department of Plant Protection, College of Agriculture and Food, Qassim University, P.O. Box 6622, Buraydah 51452, Saudi Arabia
| | - Sherif B Abdel Ghani
- Department of Plant Protection, College of Agriculture and Food, Qassim University, P.O. Box 6622, Buraydah 51452, Saudi Arabia
- Department of Plant Protection, Faculty of Agriculture, Ain Shams University, P.O. Box 68 Hadayek Shoubra, Cairo 11241, Egypt
| |
Collapse
|
5
|
Ma L, Yin Z, Xie Q, Xu Y, Chen Y, Huang Y, Li Z, Zhu X, Zhao Y, Wen W, Xu H, Wu X. Metabolomics and mass spectrometry imaging reveal the chronic toxicity of indoxacarb to adult zebrafish (Danio rerio) livers. JOURNAL OF HAZARDOUS MATERIALS 2023; 453:131304. [PMID: 37043861 DOI: 10.1016/j.jhazmat.2023.131304] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 03/23/2023] [Accepted: 03/24/2023] [Indexed: 05/03/2023]
Abstract
Indoxacarb is a widely used insecticide in the prevention and control of agricultural pests, whereas its negative effects on non-target organisms remain largely unclear. Herein, we demonstrated the integrated metabolomics and mass spectrometry imaging (MSI) methods to investigate the chronic exposure toxicity of indoxacarb at environmentally relevant concentrations in adult zebrafish (Danio rerio) liver. Results showed that movement behaviors of zebrafish can be affected and catalase (CAT), glutamic oxalacetic transaminase (GOT), and glutamic pyruvic transaminase (GPT) activities were significantly increased after indoxacarb exposure for 28 days. Pathological analysis of zebrafish livers also showed that cavitation and pathological reactions occur. Metabolomics results indicated that metabolic pathways of zebrafish liver could be significantly affected by indoxacarb, such as tricarboxylic acid (TCA) cycle and various amino acid metabolisms. MSI results revealed the spatial differentiation of crucial metabolites involved in these metabolic pathways within zebrafish liver. Taken together, these integrated MSI and metabolomics results revealed that the toxicity of indoxacarb arises from metabolic pathways disturbance, which resulted in the decrease of liver detoxification ability. These findings will promote the current understanding of pesticide risks and metabolic disorders in zebrafish liver, which provide new insights into the environmental risk assessment of insecticides on aquatic organisms.
Collapse
Affiliation(s)
- Lianlian Ma
- National Key Laboratory of Green Pesticide and Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, South China Agricultural University, Guangzhou 510642, China; Key Laboratory of Bio-Pesticide Creation and Application of Guangdong Province, College of Plant Protection, South China Agricultural University, Guangzhou 510642, China
| | - Zhibin Yin
- Agro-biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
| | - Qingrong Xie
- National Key Laboratory of Green Pesticide and Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, South China Agricultural University, Guangzhou 510642, China
| | - Yizhu Xu
- National Key Laboratory of Green Pesticide and Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, South China Agricultural University, Guangzhou 510642, China
| | - Yingying Chen
- National Key Laboratory of Green Pesticide and Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, South China Agricultural University, Guangzhou 510642, China
| | - Yudi Huang
- National Key Laboratory of Green Pesticide and Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, South China Agricultural University, Guangzhou 510642, China
| | - Zhen Li
- National Key Laboratory of Green Pesticide and Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, South China Agricultural University, Guangzhou 510642, China
| | - Xinhai Zhu
- Instrumental Analysis and Research Center, Sun Yat-sen University, Guangzhou 510275, China
| | - Yuhui Zhao
- National Key Laboratory of Green Pesticide and Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, South China Agricultural University, Guangzhou 510642, China
| | - Wenlin Wen
- National Key Laboratory of Green Pesticide and Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, South China Agricultural University, Guangzhou 510642, China
| | - Hanhong Xu
- National Key Laboratory of Green Pesticide and Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, South China Agricultural University, Guangzhou 510642, China.
| | - Xinzhou Wu
- National Key Laboratory of Green Pesticide and Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, South China Agricultural University, Guangzhou 510642, China.
| |
Collapse
|
6
|
Lin Q, Deng P, Feng T, Ou G, Mou L, Zhang Y. Enantioselectivity of indoxacarb enantiomers in Bombyx mori larvae: toxicity, bioaccumulation and biotransformation. PEST MANAGEMENT SCIENCE 2023; 79:2353-2364. [PMID: 36797221 DOI: 10.1002/ps.7412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 01/08/2023] [Accepted: 02/16/2023] [Indexed: 06/02/2023]
Abstract
BACKGROUND Indoxacarb is a chiral insecticide with excellent insecticidal activity against lepidopterous insects. Because of their enantioselectivity, chiral pesticides' environmental behavior at the enantiomeric level has been highlighted. The chiral stability, enantioselective bioaccumulation, biotransformation behavior of indoxacarb to a non-target insect silkworm are still unclear. RESULTS A chiral analysis method for indoxacarb and its metabolite DCJW in silkworm was developed using liquid chromatography and high-resolution mass spectrometry (HPLC/HRMS). In silkworms, the recoveries of indoxacarb and DCJW were 86.06%-104.52% with relative standard deviation (RSD) < 9.01%. The 96-h lethal concentration (LC50 ) values of R-indoxacarb, S-indoxacarb, and enriched S-indoxacarb (2.333 S/1R) were 1.08 × 102 , 1.92, and 6.89 mg a.i. L-1 , respectively, according to the acute toxicity test results. When silkworm larvae were exposed to 1/50 of the LC50 concentration, the bioconcentration factor (BCF) of R-indoxacarb was 0.0296-0.318, and the BCF of S-indoxacarb was 0.0125-0.211. In silkworm larvae, the amount of R-DCJW produced by R-indoxacarb was 0.00610 to 2.34 times that of the parent R-indoxacarb, and the amount of S-DCJW produced by S-indoxacarb was 0.125-36.9 times that of the parent S-indoxacarb. CONCLUSION There was no chiral transition from S-indoxacarb to R-indoxacarb or a transformation from R-indoxacarb to S-indoxacarb. Indoxacarb was preferentially bioaccumulated in silkworm larva, while S-indoxacarb bioconversion into the metabolite S-DCJW was much greater than R-indoxacarb bioconversion into R-DCJW. This study could improve understanding of the indoxacarb accumulation and transformation process in insects, as well as provide more scientific data for indoxacarb environmental and ecological risk assessment. © 2023 Society of Chemical Industry.
Collapse
Affiliation(s)
- Qiao Lin
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
| | - Pengyu Deng
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
| | - Tianyou Feng
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
| | - Guipeng Ou
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
| | - Lianhong Mou
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
| | - Yuping Zhang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
| |
Collapse
|
7
|
Wang W, Song JW, Jeong SH, Jung JH, Seo JS, Kim JH. Dissipation of Four Typical Insecticides on Strawberries and Effects of Different Household Washing Methods. Foods 2023; 12:foods12061248. [PMID: 36981173 PMCID: PMC10048472 DOI: 10.3390/foods12061248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/10/2023] [Accepted: 03/13/2023] [Indexed: 03/17/2023] Open
Abstract
The dissipation patterns of chlorfenapyr, cyenopyrafen, indoxacarb, and spirotetramat on strawberries and the effects of different household washing methods were investigated. A risk assessment was also conducted by monitoring the insecticide residues detected. The concentrations ranged from 0.011 to 0.27 mg/kg for chlorfenapyr, 0.064 to 0.99 mg/kg for cyenopyrafen, 0.042 to 0.53 mg/kg for indoxacarb, and from 0.25 to 1.3 mg/kg for spirotetramat, which were all below the maximum residue limits (MRLs) reported. Soaking the fruit in solution and then rinsing with running water (B) led to better residue removal (40.9 ± 23.7%) than only soaking in solution (A) (24.7 ± 22.5%). However, neither method decreased chlorfenapyr concentrations, suggesting that the physical–chemical properties of chlorfenapyr could also affect its removal on strawberries. Regarding the different washing solutions in method B, 3% vinegar (removal efficiency: 48.7%) and 3% salt (45.7%) were the most efficient, followed by 3% green tea (38.9%), and tap water only (24.6%). Additionally, the estimated risk quotients (RQs) for strawberry consumption for women were about 1.5 times higher than those observed for men, but both were lower than 1, suggesting minimal risk to humans.
Collapse
|
8
|
Xu F, Lu Z, Xu D, Lu H, Qiu J, Zha X. Dissipation behavior, residue transfer, and safety evaluation of chlorantraniliprole and indoxacarb during tea growing and brewing by ultrahigh-performance liquid chromatography-tandem mass spectrometry. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:63735-63752. [PMID: 35461412 DOI: 10.1007/s11356-022-20321-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 04/14/2022] [Indexed: 05/14/2023]
Abstract
A reliable and simple analytical method was developed and validated to simultaneously determine chlorantraniliprole and indoxacarb in tea using ultrahigh-performance liquid chromatography-tandem mass spectrometry. The average recoveries of chlorantraniliprole were in the range of 86-110%, with the precision of intraday (n = 5) and interday (n = 15) ranging from 1.9 to 8.4% and from 2.4 to 8.8%, respectively. The average recoveries of indoxacarb were in the range 81-105%, with the precision of intraday (n = 5) and interday (n = 15) ranging from 2.0 to 9.8% and from 2.7 to 9.1%, respectively. The limits of quantification (LOQs) were all 0.01 mg/kg. The results based on the supervised field trials showed that chlorantraniliprole and indoxacarb in two tea samples followed first-order kinetics models with half-lives of 2.2-4.7 days and 2.5-3.5 days, which could be regarded as a moderately degrading pesticide. The terminal residues of chlorantraniliprole and indoxacarb in made tea were below 6.7 and 4.5 mg/kg, respectively, lower than their corresponding maximum residue limits (MRLs) established by several major countries and organizations (50 and 5 mg/kg). The leaching rates of chlorantraniliprole and indoxacarb during the tea brewing ranged from 4.78 to 12.62% and 4.13 to 10.67%, respectively. The chronic intake risk quotient (RQc) values for chlorantraniliprole and indoxacarb were 0.24% and 35.10%, while the acute dietary risk assessment (RQa) value of indoxacarb was 5.8%, which were all much lower than 100%. The results in the present study indicated that the health risk posed by the chlorantraniliprole and indoxacarb mixture pesticides was negligible in tea for consumers at the recommended dosages.
Collapse
Affiliation(s)
- Feng Xu
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, People's Republic of China.
- Analysis Center, Residue Laboratory, Jiangsu Pesticide Research Institute, 31-1 Hengjing Road, Nanjing, 210046, People's Republic of China.
| | - Zhenyang Lu
- Analysis Center, Residue Laboratory, Jiangsu Pesticide Research Institute, 31-1 Hengjing Road, Nanjing, 210046, People's Republic of China
| | - Duo Xu
- Analysis Center, Residue Laboratory, Jiangsu Pesticide Research Institute, 31-1 Hengjing Road, Nanjing, 210046, People's Republic of China
| | - Hui Lu
- Analysis Center, Residue Laboratory, Jiangsu Pesticide Research Institute, 31-1 Hengjing Road, Nanjing, 210046, People's Republic of China
| | - Jiuyang Qiu
- Analysis Center, Residue Laboratory, Jiangsu Pesticide Research Institute, 31-1 Hengjing Road, Nanjing, 210046, People's Republic of China
| | - Xinxin Zha
- Analysis Center, Residue Laboratory, Jiangsu Pesticide Research Institute, 31-1 Hengjing Road, Nanjing, 210046, People's Republic of China
| |
Collapse
|
9
|
Simultaneous determination of pesticide residues in pomegranate whole fruit and arils using LC-MS/MS. Food Chem 2022; 387:132865. [DOI: 10.1016/j.foodchem.2022.132865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 03/29/2022] [Accepted: 03/29/2022] [Indexed: 11/16/2022]
|
10
|
Tian F, Qiao C, Wang C, Pang T, Guo L, Li J, Pang R, Xie H. Dissipation behavior of prochloraz and its metabolites in grape under open-field, storage and the wine-making process. J Food Compost Anal 2022. [DOI: 10.1016/j.jfca.2022.104846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
11
|
Tian F, Qiao C, Wang C, Pang T, Guo L, Li J, Pang R, Xie H. The fate of thiamethoxam and its main metabolite clothianidin in peaches and the wine-making process. Food Chem 2022; 382:132291. [DOI: 10.1016/j.foodchem.2022.132291] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 01/06/2022] [Accepted: 01/27/2022] [Indexed: 11/04/2022]
|
12
|
Liu Y, Zhao Y, Li S, Liu D. Multi-residue analysis, dissipation behavior, and final residues of four insecticides in supervised eggplant field. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2022; 39:1086-1099. [PMID: 35537031 DOI: 10.1080/19440049.2022.2040746] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
In this study, the residues of four insecticides, spirotetramat, flonicamid, thiamethoxam, and tolfenpyrad, and their metabolites, including spirotetramat-enol, spirotetramat-mono-hydroxy, spirotetramat-keto-hydroxy, spirotetramat-enol-glucoside, 4-trifluoromethylnicotinamide, 4-trifluoromethylnicotinic acid, N-(4-trifluoromethylnicotinoyl) glycine, and clothianidin, were assessed using a single analysis method. The samples were extracted by acetonitrile, then purified by dispersive solid phase extraction and quantified using high performance liquid chromatography tandem mass spectrometry. The average recovery rate of 12 target compounds was 73.5-103.7%, the relative standard deviation was 1.1-18.3%, and the limit of quantification was 0.01-0.05 mg/kg. The results showed good linearity (R2 >0.99), meeting the requirements of the pesticide residue analysis. The dissipation half-lives of the four insecticides in eggplant were 3.4-14.5 days. After the last applications at 7 and 10 days, the final residues of the four insecticides in eggplant were <0.01-0.21, 0.085-0.26, <0.05-0.078, and <0.01-0.21 mg/kg, respectively. The dissipation and final residue results could provide a theoretical basis for the rational application of four insecticides in eggplant fields.HighlightsHPLC-MS/MS for simultaneous determination of four insecticides and their metabolites in eggplant fields.The dissipation dynamics and final residue of the target compounds in field eggplant were studied.Guidance for the safe use of four insecticides on eggplant.
Collapse
Affiliation(s)
- Yang Liu
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, China
| | - Yuanling Zhao
- Yunnan Vocational and Technical College of Agriculture, Kunming, Yunnan, China
| | - Shuhui Li
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, China
| | - Dan Liu
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, China
| |
Collapse
|
13
|
Dissipation and Residue Pattern of Dinotefuran, Fluazinam, Indoxacarb, and Thiacloprid in Fresh and Processed Persimmon Using LC-MS/MS. Foods 2022; 11:foods11030416. [PMID: 35159566 PMCID: PMC8834564 DOI: 10.3390/foods11030416] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 01/22/2022] [Accepted: 01/24/2022] [Indexed: 11/16/2022] Open
Abstract
Pesticides which are diluted and sprayed according to the pre-harvest interval (PHI) are generally decomposed and lost through various factors and pathways, and the leftover pesticides are known as residual pesticides. This study aims to determine the dissipation of residual amounts of dinotefuran, fluazinam, indoxacarb, and thiacloprid in persimmon and the changes in the concentration of various processing products. Pesticide spraying is performed in accordance with the GAP (good agricultue practice) of Korea, and the processed products are manufactured using a conventional method after removing the skin of persimmons. The modified QuEchERS (Quick, Easy, Cheap, Effective, Rugged, and Safe) method and an optimized method using LC-MS/MS (liquid chromatography mass spectrometry) is implemented to analyze the residual pesticides. The linearity, recovery, and LOQ (limit of quantitation) are presented to verify the analysis method. The amount of residual pesticides tested decreases significantly in a time-dependent manner, regardless of the minimal dilution effect present due to growth. The residual concentration does not vary significantly during the processing stage despite the removal of the systemic pesticides, dinotefuran and thiacloprid. The residues of non-systemic pesticides, fluazinam and indoxacarb, are typically removed by the peeling removal and processing methods. The reduction factor of dinotefuran, whose residual concentration is increased, is less than 1, and the absolute amount of pesticides is decreased through processing. The results of this study can be used as the scientific basis data to ensure the safety of residual pesticides in processed products in the future.
Collapse
|
14
|
Li KL, Chen WY, Zhang M, Luo XW, Liu Y, Zhang DY, Chen A. Monitoring residue levels and dietary risk assessment of thiamethoxam and its metabolite clothianidin for Chinese consumption of Chinese kale. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2022; 102:417-424. [PMID: 34143904 DOI: 10.1002/jsfa.11371] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Revised: 05/13/2021] [Accepted: 06/18/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Thiamethoxam is widely used to control pests in Chinese kale, popularly consumed leafy vegetables. The potential risk to the environment and human health has aroused much public concern. Therefore, it is important to investigate the degradation behavior, residue distribution and dietary risk assessment of thiamethoxam in Chinese kale. RESULTS A sensitive analytical method for determination of thiamethoxam and its metabolite clothianidin residue in Chinese kale was established and validated through a quick, easy, cheap, effective, rugged, and safe (QuEChERS) technique with ultra-performance liquid chromatography tandem mass spectrometry (UPLC-MS/MS). The recoveries were 85.4-101.2% for thiamethoxam and 79.5-108.1% for clothianidin, with the relative standard deviations (RSDs) of 0.9-10.2% and 1.8-6.0%, respectively. For the dissipation kinetics, the data showed that thiamethoxam in Chinese kale was degraded with the half-lives of 4.1 to 4.5 days. In the terminal residue experiments, the residues of thiamethoxam were 0.017-0.357 mg kg-1 after application 2-3 times with a preharvest interval (PHI) of 7 days under the designed dosages. The chronic and acute dietary exposure assessment risk quotient (RQ) values of thiamethoxam in Chinese kale for different Chinese consumers were 0.08-0.19% and 0.05-0.12%, respectively, and those of clothianidin were 0.01-0.04% and 0.02-0.04%, respectively, all of the RQ values were lower than 100%. CONCLUSION Thiamethoxam in Chinese kale was rapidly degraded following first-order kinetics models. The dietary risk of thiamethoxam and clothianidin through Chinese kale was negligible to consumers. The results from this study are important reference for Chinese governments to developing criteria for the safe and rational use of thiamethoxam, setting maximum residue levels (MRLs), monitoring the quality safety of agricultural products and protecting consumer health. © 2021 Society of Chemical Industry.
Collapse
Affiliation(s)
- Kai-Long Li
- Hunan Plant Protection Institute, Hunan Academy of Agricultural Science, Changsha, China
| | - Wu-Ying Chen
- Hunan Plant Protection Institute, Hunan Academy of Agricultural Science, Changsha, China
| | - Min Zhang
- Hunan Plant Protection Institute, Hunan Academy of Agricultural Science, Changsha, China
| | - Xiang-Wen Luo
- Hunan Plant Protection Institute, Hunan Academy of Agricultural Science, Changsha, China
| | - Yong Liu
- Hunan Plant Protection Institute, Hunan Academy of Agricultural Science, Changsha, China
| | - De-Yong Zhang
- Hunan Plant Protection Institute, Hunan Academy of Agricultural Science, Changsha, China
| | - Ang Chen
- Hunan Plant Protection Institute, Hunan Academy of Agricultural Science, Changsha, China
| |
Collapse
|
15
|
Saleh SS, Monir HH, El-Naem OA. Appraisal for Edible Use of Vegetable Crops Cultivated in Egypt after Treatment with Selected Insecticides and Fungicides: Insights of Dissipation Rates and Pre-harvest Intervals. ANAL SCI 2021; 37:1775-1781. [PMID: 34275969 DOI: 10.2116/analsci.21p176] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
An analytical investigation was carried out to study the dissipation rate of two commonly used pesticides, thiamethoxam (neonicotinoid insecticide) and propamocarb hydrochloride (carbamate fungicide), applied to four vegetable crops: cucumber, zucchini, lettuce and pepper, after open-field application. Samples were harvested according to a scheduled plan followed by QuEChERS extraction, then thiamethoxam residues were analyzed using a GC-ECD method, while propamocarb HCl residues were analyzed using an HPLC-UV method. Validation parameters were attained for both methods and the kinetic profile was studied, which fitted the first-order kinetics where k, t1/2 and t90 were calculated. The proper pre-harvest interval (PHI) was studied for each crop to ensure that the residues levels declined to reach below the maximum residue limit (MRL) where the crop is suitable for consumption. These values were found to be different from labelled values, which proves that the PHIs are greatly affected by changing weather conditions.
Collapse
Affiliation(s)
- Sarah S Saleh
- Analytical Chemistry Department, Faculty of Pharmacy, October University for Modern Sciences and Arts (MSA)
| | - Hany H Monir
- Analytical Chemistry Department, Faculty of Pharmacy, Cairo University
| | - Omnia A El-Naem
- Analytical Chemistry Department, Faculty of Pharmacy, October University for Modern Sciences and Arts (MSA)
| |
Collapse
|
16
|
Zhou J, Dong C, An W, Zhao Q, Zhang Y, Li Z, Jiao B. Dissipation of imidacloprid and its metabolites in Chinese prickly ash (Zanthoxylum) and their dietary risk assessment. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 225:112719. [PMID: 34478976 DOI: 10.1016/j.ecoenv.2021.112719] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 08/17/2021] [Accepted: 08/26/2021] [Indexed: 06/13/2023]
Abstract
Dissipation of imidacloprid (IMI) and its metabolites (urea, olefin, 5-hydroxy, guanidine, 6-chloronicotinic acid) in Chinese prickly ash (CPA) was investigated using QuEChERS combined with UPLC-MS/MS. Good linearity (r2 ≥0.9963), accuracy (recoveries of 71.8-104.3%), precision (relative standard deviations of 0.9-9.4%), and sensitivity (limit of quantification ≤0.05 mg kg-1) were obtained. After application of IMI at dosage of 467 mg a.i. L-1 for three times with interval of 7 d, the dissipation dynamics of IMI in CPA followed first-order kinetics, with half-life of 6.48-7.29 d. IMI was the main compound in CPA, followed by urea and guanidine with small amounts of olefin, 5-hydroxy, and 6-chloronicotinic acid. The terminal residues of total IMI and its metabolites at PHI of 14-21 d were 0.16-7.80 mg kg-1 in fresh CPA and 0.41-10.44 mg kg-1 in dried CPA, with the median processing factor of 3.62. Risk assessment showed the acute (RQa) and chronic dietary risk quotients (RQc) of IMI in CPA were 0.020-0.083% and 0.052-0.334%, respectively. Based on the dietary structures of different genders and ages of Chinese people, the whole dietary risk assessment indicated that RQc was less than 100% for the general population except for 2- to 7-year-old children (RQc of 109.9%), implying the long-term risks of IMI were acceptable to common consumers except for children.
Collapse
Affiliation(s)
- Jie Zhou
- Citrus Research Institute, Southwest University & Chinese Academy of Agricultural Sciences, Chongqing 400712, China; Laboratory of Citrus Quality and Safety Risk Assessment for Citrus Products, Ministry of Agriculture and Rural Affairs, Chongqing 400712, China; Quality Supervision and Testing Center for Citrus and Seedling, Ministry of Agriculture and Rural Affairs, Chongqing 400712, China
| | - Chao Dong
- Citrus Research Institute, Southwest University & Chinese Academy of Agricultural Sciences, Chongqing 400712, China; Laboratory of Citrus Quality and Safety Risk Assessment for Citrus Products, Ministry of Agriculture and Rural Affairs, Chongqing 400712, China; Quality Supervision and Testing Center for Citrus and Seedling, Ministry of Agriculture and Rural Affairs, Chongqing 400712, China
| | - Wenjing An
- Citrus Research Institute, Southwest University & Chinese Academy of Agricultural Sciences, Chongqing 400712, China; Laboratory of Citrus Quality and Safety Risk Assessment for Citrus Products, Ministry of Agriculture and Rural Affairs, Chongqing 400712, China; Quality Supervision and Testing Center for Citrus and Seedling, Ministry of Agriculture and Rural Affairs, Chongqing 400712, China
| | - Qiyang Zhao
- Citrus Research Institute, Southwest University & Chinese Academy of Agricultural Sciences, Chongqing 400712, China; Laboratory of Citrus Quality and Safety Risk Assessment for Citrus Products, Ministry of Agriculture and Rural Affairs, Chongqing 400712, China; Quality Supervision and Testing Center for Citrus and Seedling, Ministry of Agriculture and Rural Affairs, Chongqing 400712, China
| | - Yaohai Zhang
- Citrus Research Institute, Southwest University & Chinese Academy of Agricultural Sciences, Chongqing 400712, China; Laboratory of Citrus Quality and Safety Risk Assessment for Citrus Products, Ministry of Agriculture and Rural Affairs, Chongqing 400712, China; Quality Supervision and Testing Center for Citrus and Seedling, Ministry of Agriculture and Rural Affairs, Chongqing 400712, China
| | - Zhixia Li
- Citrus Research Institute, Southwest University & Chinese Academy of Agricultural Sciences, Chongqing 400712, China; Laboratory of Citrus Quality and Safety Risk Assessment for Citrus Products, Ministry of Agriculture and Rural Affairs, Chongqing 400712, China; Quality Supervision and Testing Center for Citrus and Seedling, Ministry of Agriculture and Rural Affairs, Chongqing 400712, China
| | - Bining Jiao
- Citrus Research Institute, Southwest University & Chinese Academy of Agricultural Sciences, Chongqing 400712, China; Laboratory of Citrus Quality and Safety Risk Assessment for Citrus Products, Ministry of Agriculture and Rural Affairs, Chongqing 400712, China; Quality Supervision and Testing Center for Citrus and Seedling, Ministry of Agriculture and Rural Affairs, Chongqing 400712, China.
| |
Collapse
|
17
|
Prouty C, Barriga P, Davis AK, Krischik V, Altizer S. Host Plant Species Mediates Impact of Neonicotinoid Exposure to Monarch Butterflies. INSECTS 2021; 12:insects12110999. [PMID: 34821799 PMCID: PMC8623494 DOI: 10.3390/insects12110999] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 10/27/2021] [Accepted: 11/02/2021] [Indexed: 11/16/2022]
Abstract
Simple Summary Neonicotinoids are the most widely used insecticides in North America and many studies document the negative effects of neonicotinoids on bees. Monarch butterflies are famous for their long-distance migrations, and for their ability to sequester toxins from their milkweed host plants. The neonicotinoids imidacloprid and clothianidin were suggested to correlate with declines in North American monarchs. We examined how monarch development, survival, and flight were affected by exposure to neonicotinoids, and how these effects depend on milkweed host plant species that differ in their cardenolide toxins. Monarch survival and flight were unaffected by low and intermediate neonicotinoid doses. At the highest dose, neonicotinoids negatively affected monarch pupation and survival, for caterpillars that fed on the least toxic milkweed. Monarchs fed milkweed of intermediate toxicity experienced moderate negative effects of high insecticide doses. Monarchs fed the most toxic milkweed species had no negative consequences associated with neonicotinoid treatment. Our work shows that monarchs tolerate low neonicotinoid doses, but experience detrimental effects at higher doses, depending on milkweed species. To our knowledge, this is the first study to show that host plant species potentially reduce the residue of neonicotinoid insecticides on the leaf surface, and this phenomenon warrants further investigation. Abstract Neonicotinoids are the most widely used insecticides in North America. Numerous studies document the negative effects of neonicotinoids on bees, and it remains crucial to demonstrate if neonicotinoids affect other non-target insects, such as butterflies. Here we examine how two neonicotinoids (imidacloprid and clothianidin) affect the development, survival, and flight of monarch butterflies, and how these chemicals interact with the monarch’s milkweed host plant. We first fed caterpillars field-relevant low doses (0.075 and 0.225 ng/g) of neonicotinoids applied to milkweed leaves (Asclepias incarnata), and found no significant reductions in larval development rate, pre-adult survival, or adult flight performance. We next fed larvae higher neonicotinoid doses (4–70 ng/g) and reared them on milkweed species known to produce low, moderate, or high levels of secondary toxins (cardenolides). Monarchs exposed to the highest dose of clothianidin (51–70 ng/g) experienced pupal deformity, low survival to eclosion, smaller body size, and weaker adult grip strength. This effect was most evident for monarchs reared on the lowest cardenolide milkweed (A. incarnata), whereas monarchs reared on the high-cardenolide A. curassavica showed no significant reductions in any variable measured. Our results indicate that monarchs are tolerant to low doses of neonicotinoid, and that negative impacts of neonicotinoids depend on host plant type. Plant toxins may confer protective effects or leaf physical properties may affect chemical retention. Although neonicotinoid residues are ubiquitous on milkweeds in agricultural and ornamental settings, commonly encountered doses below 50 ng/g are unlikely to cause substantial declines in monarch survival or migratory performance.
Collapse
Affiliation(s)
- Cody Prouty
- Odum School of Ecology, University of Georgia, Athens, GA 30602, USA; (P.B.); (A.K.D.); (S.A.)
- Correspondence:
| | - Paola Barriga
- Odum School of Ecology, University of Georgia, Athens, GA 30602, USA; (P.B.); (A.K.D.); (S.A.)
| | - Andrew K. Davis
- Odum School of Ecology, University of Georgia, Athens, GA 30602, USA; (P.B.); (A.K.D.); (S.A.)
| | - Vera Krischik
- Department of Entomology, University of Minnesota, St. Paul, MN 55108, USA;
| | - Sonia Altizer
- Odum School of Ecology, University of Georgia, Athens, GA 30602, USA; (P.B.); (A.K.D.); (S.A.)
| |
Collapse
|
18
|
Malhat F, Bakery M, Anagnostopoulos C, Youssef M, Abd El-Ghany W, Abdallah A, Abd El-Salam S. Investigation of the dissipation behaviour and exposure of spitotetramat, flonicamid, imidacloprid and pymetrozine in open field strawberries in Egypt. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2021; 38:2128-2136. [PMID: 34525319 DOI: 10.1080/19440049.2021.1973113] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
The dissipation behaviour and the consumer risk assessment of spitotetramat, flonicamid, imidacloprid and pymetrozine in open field strawberries were studied. Insecticides were applied at the authorised levels and the more critical good agricultural practice regimes (GAP). The initial concentrations varied from 0.069 to 1.75 mg kg-1 depending on the compound, while the dissipation half-lives and terminal residues, 14 days from the last applications, were similar. After application according to the authorised pattern the half-lives were 2.8 days for flonicamid and 3.2 days for spitotetramat, imidacloprid and pymetrozine. The dietary risk assessment, performed using the hazard quotient and the EFSA PRIMo model showed no concern to consumer health with exposure values <2% of the acceptable daily intake (ADI) and <32% of the acute reference dose (ARfD) of each compound.
Collapse
Affiliation(s)
- Farag Malhat
- Pesticide Residues and Environmental Pollution Department, Central Agricultural Pesticide Laboratory, Agricultural Research Center, Giza, Egypt
| | - Mona Bakery
- Pesticide Residues and Environmental Pollution Department, Central Agricultural Pesticide Laboratory, Agricultural Research Center, Giza, Egypt
| | - Chris Anagnostopoulos
- Benaki Phytopathological Institute, Department of Pesticides Control and Phytopharmacy, Laboratory of Pesticides Residues, Athens, Greece
| | - Mohamed Youssef
- Chemistry Department, Faculty of Science, Helwan University, Cairo, Egypt
| | - Walaa Abd El-Ghany
- Plant Protection Department, Faculty of Agriculture, Ain Shams University, Cairo, Egypt
| | - Amira Abdallah
- Chemistry Department, Faculty of Science, Helwan University, Cairo, Egypt
| | - Shokr Abd El-Salam
- Pesticide Residues and Environmental Pollution Department, Central Agricultural Pesticide Laboratory, Agricultural Research Center, Giza, Egypt
| |
Collapse
|
19
|
Mohapatra S, Siddamallaiah L, Matadha NY. Behavior of acetamiprid, azoxystrobin, pyraclostrobin, and lambda-cyhalothrin in/on pomegranate tissues. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:27481-27492. [PMID: 33506422 DOI: 10.1007/s11356-021-12490-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 01/11/2021] [Indexed: 06/12/2023]
Abstract
Pomegranate crop is affected by several insect pests and requires usage of a large number of pesticides, but the information on their behavior in pomegranate tissues is limited. A study was conducted to assess the behavior of acetamiprid, azoxystrobin, pyraclostrobin, and lambda-cyhalothrin in pomegranate fruits and leaves. The QuEChERS analytical method and LC-MS/MS and GC-MS were used for quantification of the analytes. The LOD (limit of detection) of acetamiprid, azoxystrobin, and pyraclostrobin was 0.0015 mg kg-1 and lambda-cyhalothrin was 0.003 mg kg-1. The respective LOQ (limit of quantification) was 0.005 and 0.01 mg kg-1. The dissipation of the analytes best fitted into first-order rate kinetics and the half-lives of the chemicals in pomegranate fruits were 9.2-13 days and in the leaves were 13.5-17 days. In the pomegranate aril, the residue levels of acetamiprid, lambda-cyhalothrin, and pyraclostrobin were always < LOQ of these chemicals. Azoxystrobin was detected in pomegranate aril, and its residue was highest at 0.04 mg kg-1 on the 10th day and reached < LOQ by the 25th day. The pre-harvest interval (PHI) required for acetamiprid, azoxystrobin, pyraclostrobin, and lambda-cyhalothrin at standard-dose treatment was 50, 58, 44, and 40 days, respectively. From double-dose treatment, the PHIs were 70, 75, 58, and 54 days, respectively. The pesticides used in this study were more persistent in the pomegranate leaves compared to the fruits. The outcome of this study can be incorporated into production of pomegranate fruits safe for consumption and to meet the domestic and export quality control requirements.
Collapse
Affiliation(s)
- Soudamini Mohapatra
- Pesticide Residue Laboratory, Division of Plant Physiology and Biochemistry, ICAR-Indian Institute of Horticultural Research, Hesaraghatta Lake P.O, Bangalore, 560089, India.
| | - Lekha Siddamallaiah
- Pesticide Residue Laboratory, Division of Plant Physiology and Biochemistry, ICAR-Indian Institute of Horticultural Research, Hesaraghatta Lake P.O, Bangalore, 560089, India
| | - Nagapooja Yogendraiah Matadha
- Pesticide Residue Laboratory, Division of Plant Physiology and Biochemistry, ICAR-Indian Institute of Horticultural Research, Hesaraghatta Lake P.O, Bangalore, 560089, India
| |
Collapse
|
20
|
Distribution of fluopyram and tebuconazole in pomegranate tissues and their risk assessment. Food Chem 2021; 358:129909. [PMID: 33933960 DOI: 10.1016/j.foodchem.2021.129909] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 03/31/2021] [Accepted: 04/18/2021] [Indexed: 11/21/2022]
Abstract
Residue distribution of fluopyram and tebuconazole was assessed in pomegranate whole fruit, aril, outer peel (pericarp), inner peel (mesocarp) and leaves. The method LOQ of fluopyram and tebuconazole were 0.01 and 0.02 mg kg-1, respectively. Both fungicides remained in fruit peel and residues in edible aril were < LOQ. In fruit peel major portion of the fungicides remained on pericarp with minimal movement to mesocarp. In mesocarp fluopyram was 5.7-14.2%; tebuconazole, 7.5-14.4% of the residues in pericarp. Terminal residues of fluopyram and tebuconazole in pomegranate whole fruit were 0.037-0.094 and 0.036-0.096 mg kg-1. Half-life of fluopyram in pomegranate fruit and leaves were 7.3-9.1 and 15 days; tebuconazole, 8-10.3 and 11.2-12.6 days, respectively. Pre-harvest intervals for treatment of combination formulation of fluopyram and tebuconazole, were 47-59 days in fruits, 158-173 in leaves. Dietary risk assessment demonstrated that consumption of peel and leaves may pose risk to human health, whereas fruit consumption was considered safe.
Collapse
|
21
|
Gormez E, Golge O, Kabak B. Quantification of fosetyl-aluminium/phosphonic acid and other highly polar residues in pomegranates using Quick Polar Pesticides method involving liquid chromatography-tandem mass spectrometry measurement. J Chromatogr A 2021; 1642:462038. [PMID: 33714773 DOI: 10.1016/j.chroma.2021.462038] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 02/24/2021] [Accepted: 02/27/2021] [Indexed: 11/26/2022]
Abstract
Interest in the quantification of highly polar substances in crops has noticeably increased in the last five years. This study was designed to assess quantification of six polar residues, chlorate, ethephon, fosetly-aluminium (fosetyl-Al), glyphosate, phosphonic acid and perchlorate. A total of 2513 pomegranate samples intended for export from Turkey were analysed using the Quick Polar Pesticides (QuPPe) method. The method was in-house validated with very good performance results. The limits of quantification (LOQs) for residues were much lower than the respective EU Maximum Residue Levels (MRLs). Phosphonic acid was detected in 38.5% of pomegranate samples at quantifiable concentrations, calculated as fosetyl-Al. The concentrations ranged between 0.005 and 12.9 mg kg-1. The 20% of pomegranate samples showed fosetyl-Al levels above the EU MRL of 2 mg kg-1. Other polar residues were not detected in any pomegranate samples. This is the first report about highly polar pesticides in pomegranates cultivated in Turkey.
Collapse
Affiliation(s)
- Emrah Gormez
- Pia Frucht Food Control Laboratory, Alaşehir, Manisa, Turkey
| | - Ozgur Golge
- Alanya Alaaddin Keykubat University, Faculty of Tourism, Department of Gastronomy and Culinary Arts, Alanya, Antalya, Turkey
| | - Bulent Kabak
- Hitit University, Faculty of Engineering, Department of Food Engineering, TR-19030 Corum, Turkey.
| |
Collapse
|
22
|
Chen L, Li F, Jia C, Yu P, Zhao E, He M, Jing J. Determination of thiamethoxam and its metabolite clothianidin residue and dissipation in cowpea by QuEChERS combining with ultrahigh-performance liquid chromatography-tandem mass spectrometry. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:8844-8852. [PMID: 33074433 DOI: 10.1007/s11356-020-11164-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 10/06/2020] [Indexed: 06/11/2023]
Abstract
The dissipation and residue levels of thiamethoxam and its metabolite clothianidin in cowpea were investigated under field conditions. Samples of cowpea were analyzed using a QuEChERS technique with ultra-performance liquid chromatography tandem mass spectrometry. The recoveries were 86.5-118.9% for thiamethoxam and 75.6-104.1% for clothianidin, with the coefficient of variation of < 13%. The water dispersible granule formulation of thiamethoxam was applied on cowpea at 30 and 45 g active ingredient ha-1 in accordance with good agricultural practice. The half-life of thiamethoxam in cowpea was 0.8-1.6 days. The cowpea samples were gathered at 3, 7, and 10 days after the last application, and the residues of thiamethoxam in cowpea were < 0.005-0.054 mg kg-1, while those of clothianidin were < 0.005-0.008 mg kg-1. The final residues of thiamethoxam and clothianidin were below the European Union (EU) maximum residue level (0.3 mg kg-1 for thiamethoxam; 0.2 mg kg-1 for clothianidin) in cowpea after a preharvest interval (PHI) of 7 days. This study provided basic data on the use and safety of thiamethoxam and clothianidin in cowpea to help the Chinese government formulate a maximum residue level for thiamethoxam in cowpea.
Collapse
Affiliation(s)
- Li Chen
- Beijing Academy of Agricultural and Forestry Science, Institute of Plant and Environmental Protection, Beijing, 100097, People's Republic of China.
| | - Fugen Li
- Institute for the Control of Agrochemicals, Ministry of Agriculture and Rural Areas, Beijing, 100125, People's Republic of China
| | - Chunhong Jia
- Beijing Academy of Agricultural and Forestry Science, Institute of Plant and Environmental Protection, Beijing, 100097, People's Republic of China
| | - Pingzhong Yu
- Beijing Academy of Agricultural and Forestry Science, Institute of Plant and Environmental Protection, Beijing, 100097, People's Republic of China
| | - Ercheng Zhao
- Beijing Academy of Agricultural and Forestry Science, Institute of Plant and Environmental Protection, Beijing, 100097, People's Republic of China
| | - Min He
- Beijing Academy of Agricultural and Forestry Science, Institute of Plant and Environmental Protection, Beijing, 100097, People's Republic of China
| | - Junjie Jing
- Beijing Academy of Agricultural and Forestry Science, Institute of Plant and Environmental Protection, Beijing, 100097, People's Republic of China
| |
Collapse
|
23
|
Liu T, Li T, Zhang L, Li H, Liu S, Yang S, An Q, Pan C, Zou N. Exogenous salicylic acid alleviates the accumulation of pesticides and mitigates pesticide-induced oxidative stress in cucumber plants (Cucumis sativus L.). ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 208:111654. [PMID: 33396168 DOI: 10.1016/j.ecoenv.2020.111654] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 11/07/2020] [Accepted: 11/11/2020] [Indexed: 06/12/2023]
Abstract
Salicylic acid (SA) is an important signal molecule, regulating oxidative stress response in plants. In this study, we evaluated the influences of SA (1 mg L-1, 10 mg L-1 and 50 mg L-1) on the accumulation of clothianidin (CLO), dinotefuran (DFN) and difenoconazole (DFZ) (5 mg L-1) and pesticide-induced (CLO-10 mg L-1, DFN-20 mg L-1, and DFZ-10 mg L-1) oxidative stress in cucumber plants. Exogenous SA at 10 mg L-1 significantly reduced the half-lives of three pesticides in nutrient solution and prevented the accumulation of pesticides in roots and leaves. And the role of SA in reducing residues was related to the major accumulation sites of pesticides. By calculating the root concentration factor (RCF) and translocation factor (TF), we found that SA at 10 mg L-1 reduced the ability of roots to absorb pesticides and enhanced the translocation ability from roots to leaves. Roots exposed to high concentrations of three pesticides could reduce biomass, low chlorophyll content, increase the accumulation of reactive oxygen species (ROS) and proline, promote lipid peroxidation, and alter the activities of a range of antioxidant enzymes, respectively. Exogenous SA at low concentrations (1 mg L-1 and 10 mg L-1) significantly mitigated these negative effects. Hence, application of exogenous SA at 10 mg L-1 could effectively alleviate the accumulation of pesticides and induce stress tolerance in cucumber planting systems.
Collapse
Affiliation(s)
- Tingting Liu
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an 271018, China
| | - Tongtong Li
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an 271018, China
| | - Lingyan Zhang
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an 271018, China
| | - Haolin Li
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an 271018, China
| | - Shangke Liu
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an 271018, China
| | - Song Yang
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an 271018, China
| | - Quanshun An
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
| | - Canping Pan
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
| | - Nan Zou
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an 271018, China.
| |
Collapse
|
24
|
Senovieski ML, Gegenschatz SA, Chiappini FA, Teglia CM, Culzoni MJ, Goicoechea HC. In-syringe dispersive liquid-liquid microextraction vs. solid phase extraction: A comparative analysis for the liquid chromatographic determination of three neonicotinoids in cotyledons. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105181] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
|
25
|
Wu RL, He W, Li YL, Li YY, Qin YF, Meng FQ, Wang LG, Xu FL. Residual concentrations and ecological risks of neonicotinoid insecticides in the soils of tomato and cucumber greenhouses in Shouguang, Shandong Province, East China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 738:140248. [PMID: 32806369 DOI: 10.1016/j.scitotenv.2020.140248] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 06/12/2020] [Accepted: 06/14/2020] [Indexed: 06/11/2023]
Abstract
Neonicotinoid insecticides (NNIs) are the most widely used insecticides in China and worldwide. Continuous use of NNIs can lead to their accumulation in soil, causing potential ecological risks due to their relatively long half-life. We used liquid chromatography-tandem mass spectrometry (LC-MS/MS) to investigate the residual levels of nine neonicotinoids in greenhouse soils in Shouguang, East China, at different soil depths and with different crops (tomato and cucumber) after varying periods of cultivation. Seven neonicotinoids were detected in the soils of the tomato greenhouses and six were detected in the soils of the cucumber greenhouses, with total concentrations ranging from 0.731 to 11.383 μg kg-1 and 0.363 to 19.224 μg kg-1, respectively. In all samples, the neonicotinoid residues in the soils cultivated for 8-9 years were lower than in those cultivated for 2 years and 14-17 years. In the tomato greenhouse soils, the residual levels of NNIs were highest in the topsoil, with progressively lower concentrations found with depth. Under cucumber cultivation, the NNI residue levels were also highest in the topsoil but there was little difference between the middle and lower soil layers. Total organic carbon (TOC) decreased with soil depth while pH showed the opposite trend, showing a significant negative correlation in both types of soils (tomato soils ρ = -0.900, p = .001; cucumber soils ρ = -0.883, p = .002). Furthermore, TOC was significantly positively correlated, and pH was negatively correlated, with total NNI concentrations in both types of soils (TOC: tomato soils ρ = 0.800, p = .010; cucumber soils ρ = 0.881, p = .004; pH: tomato soils ρ = -0.850, p = .004; cucumber soils ρ = -0.643, p = .086). The results of an ecological risk analysis showed that acetamiprid represents a particularly high toxicity risk in these soils. Based on our analysis, NNI residues in the soils of tomato greenhouses and their associated ecological risks deserve more attention than those of cucumber greenhouse soils.
Collapse
Affiliation(s)
- Rui-Lin Wu
- MOE Laboratory for Earth Surface Processes, College of Urban & Environmental Sciences, Peking University, Beijing 100871, China
| | - Wei He
- MOE Laboratory for Earth Surface Processes, College of Urban & Environmental Sciences, Peking University, Beijing 100871, China; MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences (Beijing), Beijing 100083, China
| | - Yi-Long Li
- MOE Laboratory for Earth Surface Processes, College of Urban & Environmental Sciences, Peking University, Beijing 100871, China
| | - Yu-Yan Li
- MOE Laboratory for Earth Surface Processes, College of Urban & Environmental Sciences, Peking University, Beijing 100871, China
| | - Yi-Fan Qin
- MOE Laboratory for Earth Surface Processes, College of Urban & Environmental Sciences, Peking University, Beijing 100871, China
| | - Fan-Qiao Meng
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, Beijing Key Laboratory of Biodiversity and Organic Farming, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China
| | - Li-Gang Wang
- Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Key Laboratory of Agricultural Non-point Source Pollution Control, Ministry of Agriculture, Beijing 100081, China
| | - Fu-Liu Xu
- MOE Laboratory for Earth Surface Processes, College of Urban & Environmental Sciences, Peking University, Beijing 100871, China.
| |
Collapse
|
26
|
Wang J, Jia B, Li Y, Ren B, Liang H, Yan D, Xie H, Zhang X, Liang H. Effects of multi-walled carbon nanotubes on the enantioselective toxicity of the chiral insecticide indoxacarb toward zebrafish (Danio rerio). JOURNAL OF HAZARDOUS MATERIALS 2020; 397:122724. [PMID: 32387829 DOI: 10.1016/j.jhazmat.2020.122724] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 03/14/2020] [Accepted: 04/11/2020] [Indexed: 06/11/2023]
Abstract
The mass production and usage of carbon nanotubes (CNTs) have led to the inevitable release into the environment, and the effects of CNTs on the toxicity of co-existing pollutants have been well documented. However, knowledge of the effects of CNTs on the enantioselective toxicity of chiral compounds is limited. Using zebrafish as an experimental model, the enantioselective expression of the apoptosis, CYP3C and EAAT-related genes were analyzed following exposure to multi-walled carbon nanotubes (MWCNTs) (0.05 and 0.5 mg/L), rac-/R-/S-indoxacarb (0.01 mg/L), or the combination of rac-/R-/S-indoxacarb mixed with MWCNTs for 28d. Sex-specific differences were observed in both the liver and brain of zebrafish. The expression of apoptosis and CYP3C-related genes was 16.55-44.29 times higher in the livers of males treated with R-indoxacarb than in S-indoxacarb treated groups. The EAAT-related genes were expressed at 1.38-2.56 times higher levels in the brain of females treated with R-indoxacarb than in S-indoxacarb-treated groups. In the presence of MWCNTs, the expression of caspase-3, cyp3c3, cyp3c4, eaat1a, eaat1b and eaat2 in the livers of males and brains of females treated with S-indoxacarb were 1.65-15.33 times higher than in fish treated with R-indoxacarb. Based on these results, MWCNTs affected the enantioselective toxicity of indoxacarb toward zebrafish.
Collapse
Affiliation(s)
- Ju Wang
- Inner Mongolia Key Laboratory of Environmental Pollution Control & Waste Resource Reuse, School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, China
| | - Bo Jia
- Inner Mongolia Key Laboratory of Environmental Pollution Control & Waste Resource Reuse, School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, China
| | - Yanhong Li
- Inner Mongolia Key Laboratory of Environmental Pollution Control & Waste Resource Reuse, School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, China
| | - Bo Ren
- Inner Mongolia Key Laboratory of Environmental Pollution Control & Waste Resource Reuse, School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, China
| | - Hanlin Liang
- Inner Mongolia Key Laboratory of Environmental Pollution Control & Waste Resource Reuse, School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, China
| | - Dongyan Yan
- Inner Mongolia Key Laboratory of Environmental Pollution Control & Waste Resource Reuse, School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, China
| | - Haiyan Xie
- Inner Mongolia Key Laboratory of Environmental Pollution Control & Waste Resource Reuse, School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, China
| | - Xiaodong Zhang
- Inner Mongolia Institute for Drug Control, Hohhot, Inner Mongolia, 010020, China
| | - Hongwu Liang
- Inner Mongolia Key Laboratory of Environmental Pollution Control & Waste Resource Reuse, School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, China.
| |
Collapse
|
27
|
Ricupero M, Desneux N, Zappalà L, Biondi A. Target and non-target impact of systemic insecticides on a polyphagous aphid pest and its parasitoid. CHEMOSPHERE 2020; 247:125728. [PMID: 32069706 DOI: 10.1016/j.chemosphere.2019.125728] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 12/19/2019] [Accepted: 12/20/2019] [Indexed: 06/10/2023]
Abstract
Systemic insecticides are used to control agricultural pests globally and their non-target impact at non-lethal doses on beneficial arthropods has been recognized. We assessed the baseline toxicity of imidacloprid, thiamethoxam and sulfoxaflor-based insecticides on the polyphagous aphid pest, Aphis gossypii (Hemiptera: Aphididae), and their non-target effects on its main parasitoid, Aphidius colemani (Hymenoptera: Braconidae), evaluated by residual contact exposure to the median lethal (LC50), the low lethal (LC20) and the sublethal (LC1) concentrations of the three tested insecticides, earlier estimated for the target pest. The results showed that the LC50s for the aphid were 6.4 × 10-3, 5 × 10-3, 2.9 × 10-2 times lower compared to the label concentrations of imidacloprid, thiamethoxam and sulfoxaflor, respectively. LC50 of thiamethoxam caused the highest mortality rate on the parasitoid followed by sulfoxaflor, while imidacloprid had the lowest impact. No significant sublethal effects on reprodution were observed for A. colemani survived to the insecticide exposure. Our findings highlight the importance of case-specific evaluation to optimize pesticide applications in Integrated Pest Management packages taking into account the ecological services provided by biological control agents.
Collapse
Affiliation(s)
- Michele Ricupero
- University of Catania, Department of Agriculture, Food and Environment, Catania, Italy
| | - Nicolas Desneux
- Université Côte D'Azur, INRA (French National Institute for Agricultural Research), CNRS, UMR ISA, 06000, Nice, France
| | - Lucia Zappalà
- University of Catania, Department of Agriculture, Food and Environment, Catania, Italy.
| | - Antonio Biondi
- University of Catania, Department of Agriculture, Food and Environment, Catania, Italy
| |
Collapse
|
28
|
Su Y, Wang W, Hu J, Liu X. Dissipation behavior, residues distribution and dietary risk assessment of tembotrione and its metabolite in maize via QuEChERS using HPLC-MS/MS technique. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 191:110187. [PMID: 31951902 DOI: 10.1016/j.ecoenv.2020.110187] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 01/07/2020] [Accepted: 01/08/2020] [Indexed: 06/10/2023]
Abstract
The dissipation and residues of tembotrione in corn field application were investigated using liquid chromatography tandem mass spectrometry (LC-MS/MS) method. The average recoveries of tembotrione in maize, corncob, and straw were in the ranges of 98-107% with relative standard deviations (RSDs ≤9.3%), respectively. The recoveries of M5 was in the ranges of 90-108% in all three matrices of maize, with RSDs were 3.3-12.8%. The LODs for tembotrione and M5 in maize were 0.85 μg/L and 1.0 μg/L, 0.84 μg/L and 0.43 μg/L in corncob, 0.94 μg/L and 1.5 μg/L in straw, respectively. The LOQs of the method in maize grain, corncob and straw were 0.01, 0.01 and 0.05 mg/kg for both analytes, respectively. The dissipation of tembotrione in straw was in compliance with the first-order dynamic equation, with half-lives of 1.18-1.23 days at Beijing and Heilongjiang. Total residue of tembotrione in maize grain and corncob matrix were both below 0.02 mg/kg, lower than the max residue limit (MRL) recommended by european food safety authority (EFSA). Risk quotients (RQs) of this pesticide was assessed via comparing national estimated daily intake with acceptable daily intake. The dietary intake risk of tembotrione residue in maize was very low for all groups of Chinese residents. These data could provide scientific data and strategies and facilitate Chinese government to establish the MRLs of tembotrione.
Collapse
Affiliation(s)
- Yue Su
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, PR China
| | - Weijun Wang
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, PR China
| | - Jiye Hu
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, PR China
| | - Xiaolu Liu
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, PR China.
| |
Collapse
|
29
|
Analysis of imidacloprid and penconazole residues during their pre-harvest intervals in the greenhouse cucumbers by HPLC–DAD. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2020. [DOI: 10.1007/s13738-020-01868-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
30
|
Method Development and Validation for Determination of Indoxacarb Using LC-ESI-MS/MS and Its Dissipation Kinetics in Pigeonpea. FOOD ANAL METHOD 2019. [DOI: 10.1007/s12161-019-01681-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|