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Chengula PJ, Charles H, Pawar RC, Lee CS. Current trends on dry photocatalytic oxidation technology for BTX removal: Viable light sources and highly efficient photocatalysts. CHEMOSPHERE 2024; 351:141197. [PMID: 38244866 DOI: 10.1016/j.chemosphere.2024.141197] [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: 09/15/2023] [Revised: 12/27/2023] [Accepted: 01/10/2024] [Indexed: 01/22/2024]
Abstract
One of the main gaseous pollutants released by chemical production industries are benzene, toluene and xylene (BTX). These dangerous gases require immediate technology to combat them, as they put the health of living organisms at risk. The development of heterogeneous photocatalytic oxidation technology offers several viewpoints, particularly in gaseous-phase decontamination without an additional supply of oxidants in air at atmospheric pressure. However, difficulties such as low quantum efficiency, ability to absorb visible light, affinity towards CO2 and H2O synthesis, and low stability continue to limit its practical use. This review presents recent advances in dry-phase heterogeneous photodegradation as an advanced technology for the practical removal of BTX molecules. This review also examines the impact of low-cost light sources, the roles of the active sites of photocatalysts, and the feasible concentration range of BTX molecules. Numerous studies have demonstrated a significant improvement in the efficiency of the photodegradation of volatile organic compounds by enhancing the photocatalytic reactor system and other factors, such as humidity, temperature, and flow rate. The mechanism for BTX photodegradation based on density functional theory (DFT), electron paramagnetic resonance (EPR) and diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) investigations is also discussed. Finally, the present research complications and anticipated future developments in the field of heterogeneous photocatalytic oxidation technology are discussed.
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Affiliation(s)
- Plassidius J Chengula
- Department of Materials and Chemical Engineering, Hanyang University, Ansan, South Korea
| | - Hazina Charles
- Department of Materials and Chemical Engineering, Hanyang University, Ansan, South Korea
| | - Rajendra C Pawar
- Department of Physics, Central University of Rajasthan, Ajmer, Rajasthan, 305817, India
| | - Caroline Sunyong Lee
- Department of Materials and Chemical Engineering, Hanyang University, Ansan, South Korea.
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Rahimpoor R, Jalilian H, Mohammadi H, Rahmani A. Biological exposure indices of occupational exposure to benzene: A systematic review. Heliyon 2023; 9:e21576. [PMID: 38027568 PMCID: PMC10660043 DOI: 10.1016/j.heliyon.2023.e21576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 10/19/2023] [Accepted: 10/24/2023] [Indexed: 12/01/2023] Open
Abstract
The current study aimed to systematically review the studies concerning the biological monitoring of benzene exposure in occupational settings. A systematic literature review was conducted in Scopus, EMBASE, Web of Science, and Medline from 1985 through July 2021. We included peer-reviewed original articles that investigated the association between occupational exposure to benzene and biological monitoring. We identified 4786 unique citations, of which 64 cross-sectional, one case-control, and one cohort study met our inclusion criteria. The most studied biomarkers were urinary trans-trans muconic acid, S- phenyl mercapturic acid, and urinary benzene, respectively. We found the airborne concentration of benzene as a key indicator for choosing a suitable biomarker. We suggest considering urinary benzene at low (0.5-5.0 TLV), urinary SPMA and TTMA at medium (5.0-25 and 25-50 TLV, respectively), and urinary phenol and hydroquinone and catechol at very high concentrations (500 and 1000 TLV ≤, respectively). Genetic polymorphism of glutathione S-transferase and oral intake of sorbic acid have confounding effects on the level of U-SPMA and U-TTMA, respectively. The airborne concentration, smoking habit, oral consumption of sorbic acid, and genetic polymorphism of workers should be considered in order to choose the appropriate indicator for biological monitoring of benzene exposure.
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Affiliation(s)
- Razzagh Rahimpoor
- Department of Occupational Health and Safety, Research Center for Health Sciences, School of Health, Larestan University of Medical Sciences, Larestan, Iran
| | - Hamed Jalilian
- School of Architecture, Planning and Environmental Policy, University College Dublin, Dublin, Ireland
| | - Heidar Mohammadi
- Department of Occupational Health and Safety, Research Center for Health Sciences, School of Health, Larestan University of Medical Sciences, Larestan, Iran
| | - Abdulrasoul Rahmani
- Department of Occupational Health and Safety, Research Center for Health Sciences, School of Health, Larestan University of Medical Sciences, Larestan, Iran
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Hoseini M, Samaei MR, Shahesmaeili A, Martínez SS, Amiri H. Using biomonitoring as a complementary approach in BTEX exposure assessment in the general population and occupational settings: a systematic review and meta-analysis. REVIEWS ON ENVIRONMENTAL HEALTH 2023; 38:493-510. [PMID: 35751850 DOI: 10.1515/reveh-2022-0042] [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: 02/28/2022] [Accepted: 05/16/2022] [Indexed: 06/15/2023]
Abstract
Hazardous organic compounds such as benzene, toluene, ethylbenzene, o-xylene, m-xylene, and p-xylene (known as BTEX) found at work and at home can cause adverse health effects of human beings throughout their lives. Biological monitoring, an exposure assessment method, considers all exposed organic and non-organic compounds. Our goal was to perform a systematic review and a statistical analysis (meta-analysis) of peer-reviewed publications to assess urinary concentrations of BTEX biomarkers in both occupationally-exposed population and the general population. Several major electronic databases, including Scopus, Embase, Medline, Web of Science, and Google scholar (grey literature), were searched for biomonitoring studies of BTEX. Overall, 33 studies met the eligible criteria for the systematic review and six met the full inclusion criteria for meta-analysis. For meta-analysis, we included studies in which unmetabolized BTEX compounds were measured in urine samples. Due to insufficient data, studies that measured BTEX metabolites in urine samples and unmetabolized BTEX compounds in blood samples were excluded from the meta-analysis but were analyzed in the qualitative synthesis. Most studies showed increased urinary concentrations of BTEX in exposed individuals (mainly workers) compared to unexposed individuals. The results showed that the highest total BTEX concentrations were recorded in painters and policemen. This study showed that the undoubted associations between lifestyle and environmental factors and urinary levels of BTEX or its metabolites have not yet been confirmed in current biomonitoring studies. This is attributed to the few studies reported in this research area, the lack of homogeneous information, and the disagreement in the published results of the studies.
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Affiliation(s)
- Mohammad Hoseini
- Research Center for Health Sciences, Institute of Health, Department of Environmental Health, School of Health, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Reza Samaei
- Research Center for Health Sciences, Institute of Health, Department of Environmental Health, School of Health, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Armita Shahesmaeili
- HIV/STI Surveillance Research Center, and WHO Collaborating Center for HIV Surveillance, Institute for Futures Studies in Health Kerman University of Medical Sciences, Kerman, Iran
| | - Susana Silva Martínez
- Centro de Investigación en Ingeniería y Ciencias Aplicadas, Av. Universidad 1001, Col. Chamilpa Cuernavaca, Morelos, Mexico
| | - Hoda Amiri
- Environmental Health Engineering Research Center, Kerman University of Medical Sciences, Kerman, Iran
- Department of Environmental Health Engineering, Faculty of Public Health, Kerman University of Medical Sciences, Kerman, Iran
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Iyer S, Kumar A, Savolainen A, Barua S, Daub C, Pichelstorfer L, Roldin P, Garmash O, Seal P, Kurtén T, Rissanen M. Molecular rearrangement of bicyclic peroxy radicals is a key route to aerosol from aromatics. Nat Commun 2023; 14:4984. [PMID: 37591852 PMCID: PMC10435581 DOI: 10.1038/s41467-023-40675-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 08/07/2023] [Indexed: 08/19/2023] Open
Abstract
The oxidation of aromatics contributes significantly to the formation of atmospheric aerosol. Using toluene as an example, we demonstrate the existence of a molecular rearrangement channel in the oxidation mechanism. Based on both flow reactor experiments and quantum chemical calculations, we show that the bicyclic peroxy radicals (BPRs) formed in OH-initiated aromatic oxidation are much less stable than previously thought, and in the case of the toluene derived ipso-BPRs, lead to aerosol-forming low-volatility products with up to 9 oxygen atoms on sub-second timescales. Similar results are predicted for ipso-BPRs formed from many other aromatic compounds. This reaction class is likely a key route for atmospheric aerosol formation, and including the molecular rearrangement of BPRs may be vital for accurate chemical modeling of the atmosphere.
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Affiliation(s)
- Siddharth Iyer
- Aerosol Physics Laboratory, Tampere University, FI-33101, Tampere, Finland.
| | - Avinash Kumar
- Aerosol Physics Laboratory, Tampere University, FI-33101, Tampere, Finland
| | - Anni Savolainen
- Aerosol Physics Laboratory, Tampere University, FI-33101, Tampere, Finland
| | - Shawon Barua
- Aerosol Physics Laboratory, Tampere University, FI-33101, Tampere, Finland
| | - Christopher Daub
- Department of Chemistry, University of Helsinki, P.O. Box 55, FI-00014, Helsinki, Finland
| | | | - Pontus Roldin
- Department of Physics, Lund University, P.O. Box 118, SE-221 00, Lund, Sweden
- Swedish Environmental Research Institute IVL, SE-211 19, Malmö, Sweden
| | - Olga Garmash
- Aerosol Physics Laboratory, Tampere University, FI-33101, Tampere, Finland
- Department of Atmospheric Sciences, University of Washington, Seattle, WA, USA
| | - Prasenjit Seal
- Aerosol Physics Laboratory, Tampere University, FI-33101, Tampere, Finland
| | - Theo Kurtén
- Department of Chemistry, University of Helsinki, P.O. Box 55, FI-00014, Helsinki, Finland
| | - Matti Rissanen
- Aerosol Physics Laboratory, Tampere University, FI-33101, Tampere, Finland.
- Department of Chemistry, University of Helsinki, P.O. Box 55, FI-00014, Helsinki, Finland.
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Low-Dose Occupational Exposure to Nickel and Thyroid Hormones. J Occup Environ Med 2022; 64:e667-e671. [PMID: 35941736 DOI: 10.1097/jom.0000000000002660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
INTRODUCTION The aim of this study was to evaluate the effects of a low-dose exposure to nickel, as it is present in urban air, on thyroid hormones and on thyrotropin in outdoor workers exposed to urban pollutants. MATERIALS AND METHODS A total of 164 outdoor workers were studied and divided by sex and smoking habit. Each worker underwent measurement of urinary nickel and of blood triiodothyronine, L-thyroxine, and thyrotropin levels. The statistical analysis was performed. RESULTS Statistical analysis shows a significant and positive correlation between urinary nickel and L-thyroxine, both in total sample and in males. DISCUSSION AND CONCLUSION The study suggests that occupational exposure to a low dose of nickel may affect thyroid function in municipal police workers. These data may provide information on other categories of outdoor workers with similar exposure.
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Wei C, Chen Y, Yang Y, Ni D, Huang Y, Wang M, Yang X, Chen Z. Assessing volatile organic compounds exposure and prostate-specific antigen: National Health and Nutrition Examination Survey, 2001–2010. Front Public Health 2022; 10:957069. [PMID: 35968491 PMCID: PMC9372286 DOI: 10.3389/fpubh.2022.957069] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 07/14/2022] [Indexed: 11/13/2022] Open
Abstract
BackgroundVolatile organic compounds (VOCs) are a large group of chemicals widely used in people's daily routines. Increasing evidence revealed the VOCs' accumulating toxicity. However, the VOCs toxicity in male prostate has not been reported previously. Thus, we comprehensively evaluated the association between VOCs and prostate-specific antigen (PSA).MethodsA total of 2016 subjects were included in our study from the National Health and Nutrition Examination Survey with VOCs, PSA, and other variables among U.S. average population. We constructed XGBoost Algorithm Model, Regression Model, and Generalized linear Model (GAM) to analyze the potential association. Stratified analysis was used to identify high-risk populations.ResultsXGBoost Algorithm model identified blood chloroform as the most critical variable in the PSA concentration. Regression analysis suggested that blood chloroform was a positive association with PSA, which showed that environmental chloroform exposure is an independent risk factor that may cause prostate gland changes [β, (95% CI), P = 0.007, (0.003, 0.011), 0.00019]. GAM observed the linear relationship between blood chloroform and PSA concentration. Meanwhile, blood chloroform linear correlated with water chloroform in the lower dose range, indicating that the absorption of water may be the primary origin of chloroform. Stratified associations analysis identified the high-risk group on the chloroform exposures.ConclusionThis study revealed that blood chloroform was positively and independently associated with total PSA level, suggesting that long-term environmental chloroform exposure may cause changes in the prostate gland.
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Affiliation(s)
- Chengcheng Wei
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yumao Chen
- Department of Urology, Ezhou Central Hospital, Ezhou, China
| | - Yu Yang
- Department of Pathologist and Laboratory Medicine, Staff Pathologist, Deaconess Hospital, Evansville, IN, United States
| | - Dong Ni
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yu Huang
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Miao Wang
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiong Yang
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- *Correspondence: Xiong Yang
| | - Zhaohui Chen
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Zhaohui Chen
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Evaluating the Economic Benefits of Tightening Regulations on the Use of Toluene, a Hazardous Chemical, in South Korea. SUSTAINABILITY 2022. [DOI: 10.3390/su14116745] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The South Korean government currently designates toluene as a hazardous chemical, only limiting its use in products that are feared to be harmful. Since no measures to prohibit the use of toluene have been implemented, toluene is frequently detected in amounts that exceed the limit. Accordingly, the Government is considering implementing a plan to tighten the current regulations related to the use of toluene to prevent the occurrence of diseases caused by exposure and addiction to it. Therefore, the most important objective of this research is to evaluate quantitatively the economic benefits arising from the implementation of the plan in South Korea. To achieve the purpose of this paper, contingent valuation, an economic technique for analyzing data collected from a survey of people based on economic theory, is applied. For this purpose, a survey of 1000 people nationwide is conducted, and an analysis model that is well received in the literature is adopted. In other words, the annual willingness to pay (WTP) per household to strengthen the regulations to reduce the human health risks of toluene is evaluated to calculate its economic benefits. All the estimated WTP models secure statistical significance. The average WTP per household per annum is derived as KRW 3394 (USD 3.02). Considering that the country contained 20,573,060 households in 2021, the national economic benefits are calculated as KRW 69.82 billion (USD 62.23 million) every year. It is difficult to estimate accurately the costs incurred by tightening the regulations on toluene use, but they do not seem to exceed the benefits. Because tightening the regulations would be socially desirable, the Government would be justified in making this decision.
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Verma N, Pandit S, Gupta PK, Kumar S, Kumar A, Giri SK, Yadav G, Priya K. Occupational health hazards and wide spectrum of genetic damage by the organic solvent fumes at the workplace: A critical appraisal. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:30954-30966. [PMID: 35102507 DOI: 10.1007/s11356-022-18889-6] [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: 08/23/2021] [Accepted: 01/22/2022] [Indexed: 06/14/2023]
Abstract
Long-term exposure to organic solvents is known to affect human health posing serious occupational hazards. Organic solvents are genotoxic, and they can cause genetic changes in the exposed employees' somatic or germ cells. Chemicals such as benzene, toluene, and gasoline induce an excessive amount of genotoxicity results either in genetic polymorphism or culminates in deleterious mutations when concentration crosses the threshold limits. The impact of genotoxicity is directly related to the time of exposure, types, and quantum of solvent. Genotoxicity affects almost all the physiological systems, but the most vulnerable ones are the nervous system, reproductive system, and blood circulatory system. Based on the available literature report, we propose to evaluate the outcomes of such chemicals on the exposed humans at the workplace. Attempts would be made to ascertain if the long-term exposure makes a person resistant to such chemicals. This may seem to be a far-fetched idea but has not been studied. The health prospect of this study is envisaged to complement the already existing data facilitating a deeper understanding of the genotoxicity across the population. This would also demonstrate if it correlates with the demographic profile of the population and contributes to comorbidity and epidemiology.
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Affiliation(s)
- Neha Verma
- Deptt. of Life Sciences, SBSR, Sharda University, Greater Noida, UP, 201310, India
| | - Soumya Pandit
- Deptt. of Life Sciences, SBSR, Sharda University, Greater Noida, UP, 201310, India
| | - Piyush Kumar Gupta
- Deptt. of Life Sciences, SBSR, Sharda University, Greater Noida, UP, 201310, India
| | - Sanjay Kumar
- Deptt. of Life Sciences, SBSR, Sharda University, Greater Noida, UP, 201310, India
| | - Anil Kumar
- Center of Medical Biotechnology, Maharishi Dayanand University, Rohtak Haryana, HR, 124001, India
| | - Shiv Kumar Giri
- Department of Biotechnology, Maharaja Agrasen University, Baddi, HP, India
| | - Gulab Yadav
- Department of Biotechnology, Maharaja Agrasen University, Baddi, HP, India
| | - Kanu Priya
- Deptt. of Life Sciences, SBSR, Sharda University, Greater Noida, UP, 201310, India.
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Factors Affecting Adverse Health Effects of Gasoline Station Workers. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph181910014. [PMID: 34639318 PMCID: PMC8508572 DOI: 10.3390/ijerph181910014] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Revised: 09/06/2021] [Accepted: 09/14/2021] [Indexed: 11/19/2022]
Abstract
This cross-sectional study examined the risk factors affecting adverse health effects from benzene exposure among gasoline station workers in Khon Kean province, Thailand. An interview questionnaire of adverse symptoms relating to benzene toxicity was administered to 151 workers. Area samplings for benzene concentration and spot urine for tt-muconic acid (tt-MA), a biomarker of benzene exposure, were collected. The factors associated with adverse symptoms were analysed by using multiple logistic regression. It was found that these symptoms mostly affected fuelling workers (77.5%), and the detected air benzene reached an action level or higher than 50% of NIOSH REL (>50 ppb). The top five adverse symptoms, i.e., fatigue, headache, dizziness, nasal congestion, and runny nose, were reported among workers exposed to benzene. More specific symptoms of benzene toxicity were chest pain, bleeding/epistaxis, and anaemia. The detected tt-MA of workers was 506.7 ug/g Cr (IQR), which was a value above the BEI and higher than that of asymptomatic workers. Risk factors significantly associated with adverse symptoms, included having no safety training experience (ORadj = 5.22; 95% CI: 2.16–12.58) and eating during work hours (ORadj = 16.08; 95% CI: 1.96–131.74). This study urges the tightening of health and safety standards at gasoline stations to include training and eating restrictions while working in hazardous areas.
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Cakmak S, Cole C, Hebbern C, Andrade J, Dales R. Associations between blood volatile organic compounds, and changes in hematologic and biochemical profiles, in a population-based study. ENVIRONMENT INTERNATIONAL 2020; 145:106121. [PMID: 32947160 DOI: 10.1016/j.envint.2020.106121] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 09/03/2020] [Accepted: 09/04/2020] [Indexed: 06/11/2023]
Abstract
OBJECTIVE To investigate the influence of volatile organic compound (VOC) levels in blood, on hematological and serum biochemical parameters in the Canadian population. METHODS We tested the association between seven selected VOCs and hematological profiles and serum tests reflecting liver and kidney function and glucose metabolism using a cross-sectional study design in 3950 participants of the Canadian Health Measures Survey from 2012 to 2015. We used generalized linear mixed models adjusting for age, sex, smoking, alcohol consumption, BMI, education and household income. RESULTS An increase in blood concentration equivalent to the geometric mean for benzene, ethylbenzene, toluene, m-, p-xylenes, styrene, and total xylenes was associated with 0.68% (95% CI 0.36, 1.0) to 0.91% (95% CI 0.52, 1.3) increase in hemoglobin, and a 1.79% (95% CI 0.96, 2.62) to 4.11% (95% CI 3.11, 5.11) increase in total white blood cell count. Ethylbenzene, toluene, m-, p-xylenes and styrene were positively associated with increased platelet counts. A geometric mean increase for all VOCs was associated with decreases in creatinine. m- and p-xylenes were associated with a significant change in every measured blood cell count and liver function parameter, and in creatinine. Ethylbenzene was also positively associated with an increase in every measured hematologic parameter, two of the three liver function tests, and creatinine. Results were similar when stratified by age, but differed by smoking status and sex. CONCLUSIONS This study provides evidence that VOCs in blood, at levels found in the Canadian population, may influence blood cell counts and indicators of liver and kidney function, including an inverse association between serum VOC and creatinine. This novel finding merits further investigation to understand the impact of VOCs on human physiology and population health.
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Affiliation(s)
- Sabit Cakmak
- Population Studies Division, Environmental Health Science & Research Bureau, Health Canada, 101 Tunney's Pasture Driveway, Ottawa, ON K1A 0K9, Canada.
| | - Christie Cole
- Indoor Air Contaminants Assessment Section, Healthy Environments and Consumer Safety Branch, Health Canada, 269 Laurier Avenue, Ottawa, ON K1A 0K9, Canada
| | - Chris Hebbern
- Climate Change and Innovation Bureau, Health Canada, 269 Laurier Avenue, Ottawa, ON K1A 0K9, Canada
| | - Julie Andrade
- Population Studies Division, Environmental Health Science & Research Bureau, Health Canada, 101 Tunney's Pasture Driveway, Ottawa, ON K1A 0K9, Canada
| | - Robert Dales
- Population Studies Division, Environmental Health Science & Research Bureau, Health Canada and Ottawa Hospital Research Institute. 101 Tunney's Pasture Driveway, Ottawa, ON K1A 0K9, Canada; University of Ottawa and Ottawa Hospital Research Institute, Canada
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Adebambo TH, Fox DT, Otitoloju AA. Toxicological Study and Genetic Basis of BTEX Susceptibility in Drosophila melanogaster. Front Genet 2020; 11:594179. [PMID: 33193742 PMCID: PMC7593870 DOI: 10.3389/fgene.2020.594179] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Accepted: 09/25/2020] [Indexed: 12/21/2022] Open
Abstract
Benzene, toluene, ethylbenzene and xylene, also known as BTEX, are released into environmental media by petroleum product exploratory and exploitative activities and are harmful to humans and animals. Testing the effects of these chemicals on a significantly large scale requires an inexpensive, rapidly developing model organism such as Drosophila melanogaster. In this study, the toxicological profile of benzene, toluene, ethylbenzene, p-xylene, m-xylene, and o-xylene in D. melanogaster was evaluated. Adult animals were monitored for acute toxicity effects. Similarly, first instar larvae reared separately on the same compounds were monitored for the ability to develop into adult flies (eclosion). Further, the impact of fixed concentrations of benzene and xylene on apoptosis and mitosis were investigated in adult progenitor tissues found in third instar larvae. Toluene is the most toxic to adult flies with an LC50 of 0.166 mM, while a significant and dose-dependent decrease in fly eclosion was observed with benzene, p-xylene, and o-xylene. An increase in apoptosis and mitosis was also observed in animals exposed to benzene and p-xylene. Through Genome Wide Association Screening (GWAS), 38 regions of the D. melanogaster genome were identified as critical for responses to p-xylene. This study reveals the strength of D. Melanogaster genetics as an accessible approach to study BTEX compounds.
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Affiliation(s)
- Temitope H Adebambo
- Department of Pharmacology and Cancer Biology, Duke University School of Medicine, Durham, NC, United States.,Department of Zoology, University of Lagos, Lagos, Nigeria
| | - Donald T Fox
- Department of Pharmacology and Cancer Biology, Duke University School of Medicine, Durham, NC, United States
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12
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Brucker N, do Nascimento SN, Bernardini L, Charão MF, Garcia SC. Biomarkers of exposure, effect, and susceptibility in occupational exposure to traffic-related air pollution: A review. J Appl Toxicol 2020; 40:722-736. [PMID: 31960485 DOI: 10.1002/jat.3940] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 12/13/2019] [Accepted: 12/14/2019] [Indexed: 01/05/2023]
Abstract
There is a well-recognized association between environmental air pollution exposure and several human diseases. However, the relationship between diseases related to occupational air pollution exposure on roads and high levels of traffic-related air pollutants (TRAPs) is less substantiated. Biomarkers are essential tools in environmental and occupational toxicology, and studies on new biomarkers are increasingly relevant due to the need to determine early biomarkers to be assessed in exposure conditions. This review aimed to investigate the main advances in the biomonitoring of subjects occupationally exposed to air pollution, as well as to summarize the biomarkers of exposure, effect, and susceptibility. Furthermore, we discuss how biomarkers could be used to complement the current application of methods used to assess occupational exposures to xenobiotics present in air pollution. The databases used in the preparation of this review were PubMed, Scopus, and Science Direct. Considering the significant deleterious effects on health associated with chronic occupational exposure to xenobiotics, this topic deserves attention. As it is difficult to avoid occupational exposure to TRAPs, biomonitoring should be applied as a strategy to reduce the toxic effects of workplace exposure.
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Affiliation(s)
- Natália Brucker
- Department of Physiology and Pharmacology, Federal University of Santa Maria, Santa Maria, RS, Brazil.,Graduate Program in Pharmacology, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Sabrina Nunes do Nascimento
- Laboratory of Toxicology (LATOX), Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil.,Graduate Program in Pharmaceutical Sciences, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Letícia Bernardini
- Graduate Program in Pharmacology, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Mariele Feiffer Charão
- Graduate Program on Toxicology and Analytical Toxicology, University Feevale, Novo Hamburgo, RS, Brazil
| | - Solange Cristina Garcia
- Laboratory of Toxicology (LATOX), Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil.,Graduate Program in Pharmaceutical Sciences, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
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13
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Tomei F, Rosati MV, Lorusso G, Ricci L, Damato FM, Caciari T, Giubilati R, Casale T, Pimpinella B, Marchione S, Nardone N, di Luca NM, Massoni F, Anzelmo V, Massimi R, Tomei G, Ricci P, Sacco C, Ricci S. No Correlation between Blood Benzene Levels and Luteinizing Hormone Plasma Values in Outdoor Workers. Endocr Metab Immune Disord Drug Targets 2019; 19:1165-1171. [PMID: 31038083 DOI: 10.2174/1871530319666190417112818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 02/27/2019] [Accepted: 03/11/2019] [Indexed: 11/22/2022]
Abstract
OBJECTIVE The purpose of the study is to evaluate whether low-dose exposure to benzene, an environmental pollutant to which male and female traffic policemen are daily exposed to could cause alterations in plasma luteinizing hormone (LH) levels. METHODS From an initial sample of 1594 workers, we only selected 95 workers of whom study we knew the values of late-shift benzene and LH hormone. All subjects underwent biological monitoring (final blood benzene evaluation) and luteinizing hormone dosing. Excluding subjects with the main confounding factors, the final sample included 76 workers. The normal distribution of the variables was evaluated using the Kolmogorov - Smirnov test, followed by the logarithmic transformation of the LH and benzene values. The comparison among means was performed by using the t-test for the independent samples. The ANOVA test was performed for variables with more than 2 modes (ages and seniority) and Pearson correlation index between variables in the total sample and after subdivision as to sex, job, sports activity and smoking. The results were considered significant when p values were less than 0.05. RESULTS/CONCLUSION The study did not show a correlation between benzene levels and LH plasma levels in outdoor workers.
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Affiliation(s)
| | - Maria V Rosati
- Department of Anatomy, Histology, Medical-Legal and the Orthopedics, Specialty Scool of Occupational Medicine, Unit of Occupational Medicine, University of Rome "Sapienza", Viale Regina Elena 336, 00161 Rome, Italy
| | - Giovanna Lorusso
- Department of Anatomy, Histology, Medical-Legal and the Orthopedics, Specialty Scool of Occupational Medicine, Unit of Occupational Medicine, University of Rome "Sapienza", Viale Regina Elena 336, 00161 Rome, Italy
| | - Lidia Ricci
- Department of Anatomy, Histology, Legal Medicine and Orthopaedics, Sapienza University of Rome, Rome, Italy
| | - Felice M Damato
- Department of Anatomy, Histology, Legal Medicine and Orthopaedics, Sapienza University of Rome, Rome, Italy
| | | | | | | | | | - Stefania Marchione
- Department of Anatomy, Histology, Legal Medicine and Orthopaedics, Sapienza University of Rome, Rome, Italy
| | - Nadia Nardone
- Spin off Sipro, Via Stimigliano 5, 00199 Rome, Italy
| | - Natale Mario di Luca
- Department of Anatomy, Histology, Legal Medicine and Orthopaedics, Sapienza University of Rome, Rome, Italy
| | - Francesco Massoni
- Department of Anatomy, Histology, Legal Medicine and Orthopaedics, Sapienza University of Rome, Rome, Italy
| | - Vincenza Anzelmo
- Institute of Public Health, Unit of Occupational Medicine, University of Rome " Cattolica del Sacro Cuore", Largo Agostino Gemelli, 8, 00168 Roma, Italy
| | | | - Gianfranco Tomei
- Department of Psychiatric and Psychological Science, University of Rome " Sapienza ", Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Pasquale Ricci
- Department of Anatomy, Histology, Legal Medicine and Orthopaedics, Sapienza University of Rome, Rome, Italy
| | - Carmina Sacco
- Department of Anatomy, Histology, Legal Medicine and Orthopaedics, Sapienza University of Rome, Rome, Italy
| | - Serafino Ricci
- Department of Anatomy, Histology, Medical-Legal and the Orthopedics, Specialty Scool of Occupational Medicine, Unit of Occupational Medicine, University of Rome "Sapienza", Viale Regina Elena 336, 00161 Rome, Italy.,Department of Anatomy, Histology, Legal Medicine and Orthopaedics, Sapienza University of Rome, Rome, Italy
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Yan Y, Cabrera-Perez D, Lin J, Pozzer A, Hu L, Millet DB, Porter WC, Lelieveld J. Global tropospheric effects of aromatic chemistry with the SAPRC-11 mechanism implemented in GEOS-Chem version 9-02. GEOSCIENTIFIC MODEL DEVELOPMENT 2019; 12:111-130. [PMID: 33613856 PMCID: PMC7894209 DOI: 10.5194/gmd-12-111-2019] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The Goddard Earth Observing System with chemistry (GEOS-Chem) model has been updated with the Statewide Air Pollution Research Center version 11 (SAPRC-11) aromatics chemical mechanism, with the purpose of evaluating global and regional effects of the most abundant aromatics (benzene, toluene, xylenes) on the chemical species important for tropospheric oxidation capacity. The model evaluation based on surface and aircraft observations indicates good agreement for aromatics and ozone. A comparison between scenarios in GEOS-Chem with simplified aromatic chemistry (as in the standard setup, with no ozone formation from related peroxy radicals or recycling of NOx) and with the SAPRC-11 scheme reveals relatively slight changes in ozone, the hydroxyl radical, and nitrogen oxides on a global mean basis (1 %-4 %), although remarkable regional differences (5 %-20 %) exist near the source regions. NO x decreases over the source regions and increases in the remote troposphere, due mainly to more efficient transport of peroxyacetyl nitrate (PAN), which is increased with the SAPRC aromatic chemistry. Model ozone mixing ratios with the updated aromatic chemistry increase by up to 5 ppb (more than 10 %), especially in industrially polluted regions. The ozone change is partly due to the direct influence of aromatic oxidation products on ozone production rates, and in part to the altered spatial distribution of NOx that enhances the tropospheric ozone production efficiency. Improved representation of aromatics is important to simulate the tropospheric oxidation.
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Affiliation(s)
- Yingying Yan
- Department of Atmospheric Sciences, School of Environmental Studies, China University of Geosciences (Wuhan), Wuhan, China
- Laboratory for Climate and Ocean–Atmosphere Studies, Department of Atmospheric and Oceanic Sciences, School of Physics, Peking University, Beijing, China
| | - David Cabrera-Perez
- Max Planck Institute for Chemistry, Atmospheric Chemistry Department, Mainz, Germany
| | - Jintai Lin
- Laboratory for Climate and Ocean–Atmosphere Studies, Department of Atmospheric and Oceanic Sciences, School of Physics, Peking University, Beijing, China
| | - Andrea Pozzer
- Max Planck Institute for Chemistry, Atmospheric Chemistry Department, Mainz, Germany
| | - Lu Hu
- Department of Chemistry and Biochemistry, University of Montana, Missoula, MT, USA
| | - Dylan B. Millet
- Department of Soil, Water, and Climate, University of Minnesota, St. Paul, MN, USA
| | - William C. Porter
- Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, USA
| | - Jos Lelieveld
- Max Planck Institute for Chemistry, Atmospheric Chemistry Department, Mainz, Germany
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15
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Willingness to Pay for Improved Air Quality and Influencing Factors among Manufacturing Workers in Nanchang, China. SUSTAINABILITY 2018. [DOI: 10.3390/su10051613] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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16
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Fu J, Dong N, Ye Q, Cheng S, Kang T, Dai H. Enhanced performance of the OMS-2 catalyst by Ag loading for the oxidation of benzene, toluene, and formaldehyde. NEW J CHEM 2018. [DOI: 10.1039/c8nj04030c] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The catalytic mechanism of formaldehyde, toluene, and benzene oxidation over xAg/OMS-2. Different concentrations of precious metal load have an important impact on the physicochemical properties of the product.
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Affiliation(s)
- Jiaoli Fu
- Key Laboratory of Beijing on Regional Air Pollution Control
- Department of Environmental Science
- College of Environmental and Energy Engineering
- Beijing University of Technology
- Beijing 100124
| | - Ning Dong
- Key Laboratory of Beijing on Regional Air Pollution Control
- Department of Environmental Science
- College of Environmental and Energy Engineering
- Beijing University of Technology
- Beijing 100124
| | - Qing Ye
- Key Laboratory of Beijing on Regional Air Pollution Control
- Department of Environmental Science
- College of Environmental and Energy Engineering
- Beijing University of Technology
- Beijing 100124
| | - Shuiyuan Cheng
- Key Laboratory of Beijing on Regional Air Pollution Control
- Department of Environmental Science
- College of Environmental and Energy Engineering
- Beijing University of Technology
- Beijing 100124
| | - Tianfang Kang
- Key Laboratory of Beijing on Regional Air Pollution Control
- Department of Environmental Science
- College of Environmental and Energy Engineering
- Beijing University of Technology
- Beijing 100124
| | - Hongxing Dai
- Beijing Key Laboratory for Green Catalysis and Separation
- Key Laboratory of Beijing on Regional Air Pollution Control, and Laboratory of Catalysis Chemistry and Nanoscience
- Department of Chemistry and Chemical Engineering
- College of Environmental and Energy Engineering
- Beijing University of Technology
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Tomei F, Ricci S, Giammichele G, Sacco C, Loreti B, Fidanza L, Ricci P, Scala B, Tomei G, Rosati MV. Blood pressure in indoor and outdoor workers. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2017; 55:127-136. [PMID: 28843852 DOI: 10.1016/j.etap.2017.06.022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Revised: 06/23/2017] [Accepted: 06/24/2017] [Indexed: 06/07/2023]
Abstract
INTRODUCTION The aim of our study is to evaluate the changes in systolic and diastolic blood pressure in two occupational categories: outdoor workers (traffic policemen and environment technicians) and indoor workers. MATERIALS AND METHODS The study was conducted comparing the results obtained from three samples of male workers: 175 outdoor traffic policemen, 175 outdoor environment technicians and 175 indoor workers. The outdoor and indoor groups were made comparable by age, length of service, body mass index, alcohol consumption, smoking status. RESULTS The mean values of systolic and diastolic blood pressure were found higher in traffic policemen and technicians than in indoor workers, as well as higher values of systolic blood pressure in traffic policemen than in technicians. CONCLUSIONS The results suggest that outdoor working affects the blood pressure, contributing to an increased cardiovascular risk.
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Affiliation(s)
- Francesco Tomei
- Spin off of University of Rome "Sapienza" "Sipro", Viale Regina Elena 336, 00161 Rome, Italy.
| | - Serafino Ricci
- Department of Anatomy, Histology, Legal Medicine and Orthopaedics, Sapienza University of Rome, Rome, Italy; Department of Anatomy, Histology, Medical-Legal and the Orthopedics, Specialty Scool of Occupational Medicine, Unit of Occupational Medicine, University of Rome "Sapienza", Viale Regina Elena 336, 00161 Rome, Italy
| | - Grazia Giammichele
- Department of Anatomy, Histology, Medical-Legal and the Orthopedics, Specialty Scool of Occupational Medicine, Unit of Occupational Medicine, University of Rome "Sapienza", Viale Regina Elena 336, 00161 Rome, Italy
| | - Carmina Sacco
- Department of Anatomy, Histology, Medical-Legal and the Orthopedics, Specialty Scool of Occupational Medicine, Unit of Occupational Medicine, University of Rome "Sapienza", Viale Regina Elena 336, 00161 Rome, Italy
| | - Beatrice Loreti
- Department of Anatomy, Histology, Medical-Legal and the Orthopedics, Specialty Scool of Occupational Medicine, Unit of Occupational Medicine, University of Rome "Sapienza", Viale Regina Elena 336, 00161 Rome, Italy
| | - Luciana Fidanza
- Department of Anatomy, Histology, Medical-Legal and the Orthopedics, Specialty Scool of Occupational Medicine, Unit of Occupational Medicine, University of Rome "Sapienza", Viale Regina Elena 336, 00161 Rome, Italy
| | - Pasquale Ricci
- Department of Anatomy, Histology, Legal Medicine and Orthopaedics, Sapienza University of Rome, Rome, Italy
| | - Barbara Scala
- Spin off of University of Rome "Sapienza" "Sipro", Viale Regina Elena 336, 00161 Rome, Italy
| | - Gianfranco Tomei
- Department of Psychiatric and Psychological Science, University of Rome "Sapienza", Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Maria Valeria Rosati
- Department of Anatomy, Histology, Medical-Legal and the Orthopedics, Specialty Scool of Occupational Medicine, Unit of Occupational Medicine, University of Rome "Sapienza", Viale Regina Elena 336, 00161 Rome, Italy
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Casale T, Sacco C, Ricci S, Loreti B, Pacchiarotti A, Cupelli V, Arcangeli G, Mucci N, Antuono V, De Marco F, Tomei G, Tomei F, Rosati MV. Workers exposed to low levels of benzene present in urban air: Assessment of peripheral blood count variations. CHEMOSPHERE 2016; 152:392-398. [PMID: 27011318 DOI: 10.1016/j.chemosphere.2016.01.096] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2014] [Revised: 12/04/2015] [Accepted: 01/23/2016] [Indexed: 06/05/2023]
Abstract
BACKGROUND Few studies in the literature have examined the effects of benzene on blood cells. AIM The aim of this study was to evaluate the possible correlation between the blood benzene levels and the blood cell counts. MATERIALS AND METHODS From a population of 2658 workers, we studied a group of 215 subjects. Each worker underwent blood sampling for the assessment of the blood benzene levels and the blood cell counts. The Mann-Whitney U test for two-mode variables and the Kruskal-Wallis test for more-than-two-mode variables were performed on all subjects. We estimated the Pearson correlation index between the variables in the total sample and the subgroups divided according to sex, the smoking habit, and job. After the main confounding factors were evaluated, multiple linear regression was performed on both the total sample and the subgroups. RESULTS A significant inverse correlation was found among the blood benzene levels and the white blood cells, lymphocytes, and neutrophils in traffic policemen, motorcyclists, and other outdoor workers. We did not find any significant correlation with any other parameters of blood cell count. DISCUSSION AND CONCLUSIONS Our results, which must be considered preliminary, indicate that increased blood benzene levels in outdoor workers lead to decreased counts of white blood cells, neutrophils, and lymphocytes, because of possible immune effects. These are worth investigating in the future by specific immune tests.
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Affiliation(s)
- Teodorico Casale
- University of Rome "La Sapienza", Department of Anatomy, Histology, Medical-Legal and the Orthopedics, Unit of Occupational Medicine, Viale Regina Elena 336, 00161 Rome, Italy
| | - Carmina Sacco
- University of Rome "La Sapienza", Department of Anatomy, Histology, Medical-Legal and the Orthopedics, Unit of Occupational Medicine, Viale Regina Elena 336, 00161 Rome, Italy
| | - Serafino Ricci
- Department of Anatomy, Histology, Legal Medicine and Orthopaedics, Sapienza University of Rome, Rome, Italy
| | - Beatrice Loreti
- University of Rome "La Sapienza", Department of Anatomy, Histology, Medical-Legal and the Orthopedics, Unit of Occupational Medicine, Viale Regina Elena 336, 00161 Rome, Italy
| | - Alessandro Pacchiarotti
- University of Rome "La Sapienza", Department of Anatomy, Histology, Medical-Legal and the Orthopedics, Unit of Occupational Medicine, Viale Regina Elena 336, 00161 Rome, Italy
| | - Vincenzo Cupelli
- Chair of Occupational Medicine, Health Services Research Unit, Department of Clinical and Experimental Medicine, University of Florence. 1/23 Largo Piero Palagi, Florence, Italy
| | - Giulio Arcangeli
- Chair of Occupational Medicine, Health Services Research Unit, Department of Clinical and Experimental Medicine, University of Florence. 1/23 Largo Piero Palagi, Florence, Italy
| | - Nicola Mucci
- Chair of Occupational Medicine, Health Services Research Unit, Department of Clinical and Experimental Medicine, University of Florence. 1/23 Largo Piero Palagi, Florence, Italy; Institute of Occupational Medicine, Catholic University of Sacred Heart, 1 Largo Francesco Vito, 00168 Rome, Italy
| | - Vittorio Antuono
- University of Rome "La Sapienza", Department of Anatomy, Histology, Medical-Legal and the Orthopedics, Unit of Occupational Medicine, Viale Regina Elena 336, 00161 Rome, Italy
| | - Federica De Marco
- University of Rome "La Sapienza", Department of Anatomy, Histology, Medical-Legal and the Orthopedics, Unit of Occupational Medicine, Viale Regina Elena 336, 00161 Rome, Italy
| | - Gianfranco Tomei
- Department of Psychiatric and Psychological Science, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy.
| | - Francesco Tomei
- Spin off of University of Rome " Sapienza " "Sipro", Viale Regina Elena 336, 00161 Rome, Italy
| | - Maria Valeria Rosati
- University of Rome "La Sapienza", Department of Anatomy, Histology, Medical-Legal and the Orthopedics, Unit of Occupational Medicine, Viale Regina Elena 336, 00161 Rome, Italy
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Walser T, Juraske R, Demou E, Hellweg S. Indoor exposure to toluene from printed matter matters: complementary views from life cycle assessment and risk assessment. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2014; 48:689-97. [PMID: 24283298 DOI: 10.1021/es403804z] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
A pronounced presence of toluene from rotogravure printed matter has been frequently observed indoors. However, its consequences to human health in the life cycle of magazines are poorly known. Therefore, we quantified human-health risks in indoor environments with Risk Assessment (RA) and impacts relative to the total impact of toxic releases occurring in the life cycle of a magazine with Life Cycle Assessment (LCA). We used a one-box indoor model to estimate toluene concentrations in printing facilities, newsstands, and residences in a best, average, and worst-case scenario. The modeled concentrations are in the range of the values measured in on-site campaigns. Toluene concentrations can be close or even surpass the occupational legal thresholds in printing facilities in realistic worst-case scenarios. The concentrations in homes can surpass the US EPA reference dose (69 μg/kg/day) in worst-case scenarios, but are still at least 1 order of magnitude lower than in press rooms or newsstands. However, toluene inhaled at home becomes the dominant contribution to the total potential human toxicity impacts of toluene from printed matter when assessed with LCA, using the USEtox method complemented with indoor characterization factors for toluene. The significant contribution (44%) of toluene exposure in production, retail, and use in households, to the total life cycle impact of a magazine in the category of human toxicity, demonstrates that the indoor compartment requires particular attention in LCA. While RA works with threshold levels, LCA assumes that every toxic emission causes an incremental change to the total impact. Here, the combination of the two paradigms provides valuable information on the life cycle stages of printed matter.
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Affiliation(s)
- Tobias Walser
- Group for Ecological Systems Design, Institute of Environmental Engineering, ETH Zurich , Zurich Switzerland
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Casale T, Caciari T, Rosati MV, Gioffrè PA, Schifano MP, Capozzella A, Pimpinella B, Tomei G, Tomei F. Anesthetic gases and occupationally exposed workers. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2014; 37:267-274. [PMID: 24374387 DOI: 10.1016/j.etap.2013.12.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2013] [Revised: 11/29/2013] [Accepted: 12/02/2013] [Indexed: 06/03/2023]
Abstract
The aim of this study is to estimate whether the occupational exposure to low dose anesthetic gases could cause alterations of blood parameters in health care workers. 119 exposed subjects and 184 not exposed controls were included in the study. Each worker underwent the complete blood count test (CBC), proteinaemia, leukocyte count, serum lipids, liver and kidney blood markers. The liver blood markers show statistically significant differences in health care workers compared with controls (p<0.05), a statistically significant decrease in neutrophils and an increase of lymphocytes in health care workers compared with controls (p<0.05). The prevalence of values outside the range for GPT, GGT, total bilirubin, lymphocytes and neutrophils was statistically significant in health care workers compared with controls (p<0.05). The results suggest that occupational exposure to low dose anesthetic gases could influence some haematochemical hepatic and hematopoietic parameters in exposed health care workers.
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Affiliation(s)
- Teodorico Casale
- Department of Anatomy, Histology, Medical-Legal and the Orthopedics, Unit of Occupational Medicine, University of Rome "Sapienza", Viale Regina Elena 336, 00161 Rome, Italy.
| | - Tiziana Caciari
- Department of Anatomy, Histology, Medical-Legal and the Orthopedics, Unit of Occupational Medicine, University of Rome "Sapienza", Viale Regina Elena 336, 00161 Rome, Italy
| | - Maria Valeria Rosati
- Department of Anatomy, Histology, Medical-Legal and the Orthopedics, Unit of Occupational Medicine, University of Rome "Sapienza", Viale Regina Elena 336, 00161 Rome, Italy
| | - Pier Agostino Gioffrè
- Department of Anatomy, Histology, Medical-Legal and the Orthopedics, Unit of Occupational Medicine, University of Rome "Sapienza", Viale Regina Elena 336, 00161 Rome, Italy
| | - Maria Pia Schifano
- Department of Anatomy, Histology, Medical-Legal and the Orthopedics, Unit of Occupational Medicine, University of Rome "Sapienza", Viale Regina Elena 336, 00161 Rome, Italy
| | - Assunta Capozzella
- Department of Anatomy, Histology, Medical-Legal and the Orthopedics, Unit of Occupational Medicine, University of Rome "Sapienza", Viale Regina Elena 336, 00161 Rome, Italy
| | - Benedetta Pimpinella
- Department of Anatomy, Histology, Medical-Legal and the Orthopedics, Unit of Occupational Medicine, University of Rome "Sapienza", Viale Regina Elena 336, 00161 Rome, Italy
| | - Gianfranco Tomei
- Department of Psychiatric and Psychological Science, University of Rome "Sapienza", Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Francesco Tomei
- Department of Anatomy, Histology, Medical-Legal and the Orthopedics, Unit of Occupational Medicine, University of Rome "Sapienza", Viale Regina Elena 336, 00161 Rome, Italy
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Caciari T, Rosati MV, Casale T, Loreti B, Sancini A, Riservato R, Nieto HA, Frati P, Tomei F, Tomei G. Noise-induced hearing loss in workers exposed to urban stressors. THE SCIENCE OF THE TOTAL ENVIRONMENT 2013; 463-464:302-308. [PMID: 23811690 DOI: 10.1016/j.scitotenv.2013.06.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2013] [Accepted: 06/03/2013] [Indexed: 06/02/2023]
Abstract
The technological and industrial progress together with the intensification of vehicular traffic and the adoption of new social habits are the cause of an increasing noise pollution with possible negative effects on the auditory system. This study aims to assess the noise exposure levels and the effects on the hearing threshold in outdoor and indoor male workers of a big Italian city. The study was carried out on 357 outdoor male workers, exposed to urban noise and on a control group of 357 unexposed indoor workers. Noise levels were measured in 30 outdoor and indoor areas. The subjects underwent tonal liminal audiometry in order to determine the value of their hearing threshold. During their working activity, outdoor and indoor workers are exposed to different noise levels LEX<80 dB(A). At mid-low frequencies (250-2000 Hz), the results show significant differences in the average values of hearing threshold between the two groups in both ears and for all age classes; there are no significant differences between the two groups at higher frequencies. The outdoor noise levels measured are not usually ototoxic and the hearing loss at mid-low frequencies is not characteristic of the exposure to industrial noise. For these reasons the Authors hypothesize that the results may be due to the combined effect of the exposure to noise and to ototoxic air pollutants. The impairment of speech frequencies is disabling and involves the risk of missed forensic recognition.
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Affiliation(s)
- Tiziana Caciari
- Department of Anatomy, Histology, Medical-Legal and the Orthopedics, Unit of Occupational Medicine, "Sapienza" University of Rome, Viale Regina Elena 336, 00161 Rome, Italy
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22
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Charão MF, Moro AM, Valentini J, Brucker N, Bubols GB, Bulcão RP, Baierle M, Freitas FA, Nascimento SN, Barth A, Linden R, Saldiva PHN, Garcia SC. Exogenous and endogenous antioxidants attenuate the lipid peroxidation in workers occupationally exposed to paints. Drug Chem Toxicol 2013; 37:69-75. [DOI: 10.3109/01480545.2013.806534] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Sancini A, Tomei F, Tomei G, Caciari T, Capozzella A, Di Famiani M, Samperi I, Scala B, Fiaschetti M, Cetica C, Ciarrocca M. Spinal and temporo-mandibular disorders in male workers of the State Police. Acta Odontol Scand 2013; 71:671-5. [PMID: 23061538 DOI: 10.3109/00016357.2012.715188] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE The aims of this study are to evaluate the prevalence of disorders of the lumbar region and the temporo-mandibular district co-morbidity in drivers and workers of the State Police employed for different office activities. MATERIALS AND METHODS The study population included 103 drivers as cases and 100 police officers as controls. The study was carried out through questionnaire and clinical evaluation of the spine and temporo-mandibular region. RESULTS At clinical examination, the drivers were found to have a higher prevalence (p < 0.05) of both symptoms and clinical signs at the spine and temporo-mandibular joint (TMJ), when compared with the controls. The results also showed a higher prevalence (p < 0.05) of co-morbidity in the two districts among the drivers, when compared with the controls. CONCLUSIONS These results confirm that morbidity related to back and TMJ and increase in co-morbidity between the two districts are higher in professional drivers.
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Affiliation(s)
- Angela Sancini
- University of Rome Sapienza, Department of Anatomy, Histology, Medical-Legal and Orthopedics, Unit of Occupational Medicine, Viale Regina Elena 336, 00161 Rome, Italy
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Ciarrocca M, Capozzella A, Tomei F, Tomei G, Caciari T. Exposure to cadmium in male urban and rural workers and effects on FSH, LH and testosterone. CHEMOSPHERE 2013; 90:2077-84. [PMID: 23290941 DOI: 10.1016/j.chemosphere.2012.10.060] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2012] [Revised: 10/12/2012] [Accepted: 10/22/2012] [Indexed: 05/25/2023]
Abstract
OBJECTIVE This cross-sectional study was conducted to assess the relationship between exposure to cadmium and circulating reproductive hormone levels in urban and rural male workers. MATERIALS AND METHODS Urinary cadmium, blood cadmium, luteinizing hormone (LH), follicle stimulating hormone (FSH) and testosterone were obtained from 86 non-smoking traffic policemen and 86 subjects working as roadmen in a rural area. All subjects were monitored to evaluate airborne exposure to cadmium. RESULTS The mean value of exposure to cadmium was 1.3 ng m(-3) in traffic policemen, while the mean value was less than 0.5 ng m(-3) in roadmen. The mean concentrations of urinary cadmium (1.4 vs. 0.9 μg g(-1) creatinine; p=0.001), blood cadmium (1.1 vs. 0.7 μg l(-1); p=0.000), FSH (2.6 vs. 3.2 μlU ml(-1); p=0.02) and LH (2.6 vs. 3.1 μlU ml(-1); p=0.03) were significantly different between traffic policemen and roadmen. No differences were found in the mean values of testosterone between the two groups. Multiple linear regression models showed associations between (a) urinary cadmium, airborne cadmium, working life, job category and consumption of water from water supply (b) blood cadmium, airborne cadmium and job category (c) the values of FSH and age, working life, job category, urinary cadmium and blood cadmium (d) the values of LH and both the age and working life. CONCLUSION The above results must be confirmed by further studies, but they indicate the influence of exposure to the cadmium present in urban air on the circulating FSH, even at low doses.
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Affiliation(s)
- Manuela Ciarrocca
- Department of Occupational Medicine, Sapienza University of Rome, Viale Regina Elena 336, 00161 Rome, Italy
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Caciari T, Casale T, Ciarrocca M, Capozzella A, Gioffrè PA, Corbosiero P, Tomei G, Scala B, Andreozzi G, Nardone N, Tomei F, Rosati MV. Correlation between total blood lead values and peripheral blood counts in workers occupationally exposed to urban stressors. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2013; 48:1457-1469. [PMID: 23802154 DOI: 10.1080/10934529.2013.796769] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The aim of the study was to assess the relationship between occupational exposure to airborne lead (Pb) and alterations in peripheral blood counts in workers of the Municipal Police assigned to different types of outdoor tasks. Then, 337 both male and female subjects were enrolled and divided on the basis of sex, cigarette smoking habit and kind of task. Exposure to airborne Pb, dosage of total blood Pb and peripheral blood count were carried out. A significant positive correlation was detected between the values of total blood Pb and values of plasma reticulocytes (%RET) both in the total sample and for all the classes of the subdivision except for police drivers. Some statistically significant correlations were present but discontinuous for other variables of peripheral blood counts. Results suggest that occupational exposure to low doses of airborne Pb is able to influence lines of the hematopoietic system in exposed workers, with special reference to %RET.
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Affiliation(s)
- Tiziana Caciari
- Department of Anatomy, Histology, Legal Medicine and Orthopedics, Unit of Occupational Medicine, University of Rome Sapienza, Rome, Italy
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