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Sun H, Tian Y, Zhang H, Meng Y, Wang S, Li L, Zhan W, Zhou X, Zuo W. Decoding China's anthropogenic typical pollutant discharge patterns: Long-term dynamics and hotspot transitions driven by population, diet, and sanitation. Water Res 2024; 250:121049. [PMID: 38157599 DOI: 10.1016/j.watres.2023.121049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 12/18/2023] [Accepted: 12/20/2023] [Indexed: 01/03/2024]
Abstract
Human activities have led to an alarming increase in pollution, resulting in widespread water contamination. A comprehensive understanding of the quantitative relationship between anthropogenic pollutant discharges and the escalating anthropogenic disturbances and environmental efforts is crucial for effective water quality management. Here we establish a Model for Estimating Anthropogenic pollutaNts diScharges (MEANS) and simulate the long-term dynamics of various types of anthropogenic discharges in China based on an unprecedented spatio-temporal dynamic parameter dataset. Our findings reveal that from 1980 to 2020, anthropogenic discharges exhibited an overall trend of initially increasing and subsequently decreasing, with the peak occurring around 2005. During this period, the dominant pollution sources in China shifted from urban to rural areas, thereby driving the transition of hotspot pollutants from nitrogen to phosphorus in the eastern regions. The most significant drivers of anthropogenic pollutant discharges gradually shifted from population size and dietary structure to wastewater treatment and agricultural factors. Furthermore, we observed that a significant portion of China's regions still exceed the safety thresholds for pollutant discharges, with excessive levels of total phosphorus (TP) being particularly severe. These findings highlight the need for flexible management strategies in the future to address specific pollution levels and hotspots in different regions. Our study underscores the importance of considering the complex interplay between anthropogenic disturbances, environmental efforts, and long-term anthropogenic pollutant discharges for effective water pollution control.
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Affiliation(s)
- Huihang Sun
- State Key Lab of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, P.O.Box 2603, 73 Huanghe Road, Nangang District, Harbin, Heilongjiang 150090, China
| | - Yu Tian
- State Key Lab of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, P.O.Box 2603, 73 Huanghe Road, Nangang District, Harbin, Heilongjiang 150090, China.
| | - Haoran Zhang
- State Key Lab of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, P.O.Box 2603, 73 Huanghe Road, Nangang District, Harbin, Heilongjiang 150090, China
| | - Yiming Meng
- State Key Lab of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, P.O.Box 2603, 73 Huanghe Road, Nangang District, Harbin, Heilongjiang 150090, China
| | - Shupeng Wang
- State Key Lab of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, P.O.Box 2603, 73 Huanghe Road, Nangang District, Harbin, Heilongjiang 150090, China
| | - Lipin Li
- State Key Lab of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, P.O.Box 2603, 73 Huanghe Road, Nangang District, Harbin, Heilongjiang 150090, China
| | - Wei Zhan
- State Key Lab of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, P.O.Box 2603, 73 Huanghe Road, Nangang District, Harbin, Heilongjiang 150090, China
| | - Xue Zhou
- State Key Lab of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, P.O.Box 2603, 73 Huanghe Road, Nangang District, Harbin, Heilongjiang 150090, China
| | - Wei Zuo
- State Key Lab of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, P.O.Box 2603, 73 Huanghe Road, Nangang District, Harbin, Heilongjiang 150090, China
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Yu X, Li H, Yang Q, Sun Z, Ma Y. Accumulation of Cr in different vegetables and derivation of soil Cr threshold using the species sensitivity distribution method. Ecotoxicol Environ Saf 2023; 258:114993. [PMID: 37172408 DOI: 10.1016/j.ecoenv.2023.114993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 05/05/2023] [Accepted: 05/06/2023] [Indexed: 05/15/2023]
Abstract
Due to its high mobility and bioavailability, hexavalent chromium [Cr(VI)] in agricultural soil can be taken up by crops and pose threat to human being. In this study, two soils (Jiangxi red soil and Shandong fluvo-aquic soil) spiked with Cr(VI) and 8 common vegetable varieties were used to conduct the pot experiment. The bioconcentration factor (BCF) values based on the tetraacetic acid extractable Cr (EDTA-Cr) in soils were used to construct the species sensitivity distribution (SSD) curve. Afterwards, the soil Cr threshold was derived based on the critical BCF value and the permissible limit of Cr for vegetables. The results showed that when spiked with 5.6 mg kg-1 of Cr(Ⅵ), the soil EDTA-Cr concentrations were significantly increased compared with the control except Jiangxi red soil planted with carrot and radish, while the Cr concentrations in the edible parts of vegetables in both soils were below the permissible limit (0.5 mg kg-1 FW). However, there are dramatic differences in the accumulation of Cr by different varieties of vegetables. Apparent discrepancy was observed between the two soils for the bioconcentration of Cr by carrot. Among the leafy vegetables, lettuce and oilseed rape are the most and the least sensitive to Cr pollution, respectively. The safety threshold values of EDTA-Cr were 0.70 mg kg-1 for Shandong fluvo-aquic soil and 0.85 mg kg-1 for Jiangxi red soil, respectively. This study provides information on the safety production of vegetable products in Cr(Ⅵ) polluted soils and is helpful to the revision of soil quality standards of Cr.
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Affiliation(s)
- Xuezhen Yu
- School of Water Conservancy and Environment, University of Jinan, Jinan 250022, China
| | - Helian Li
- School of Water Conservancy and Environment, University of Jinan, Jinan 250022, China.
| | - Qian Yang
- School of Water Conservancy and Environment, University of Jinan, Jinan 250022, China
| | - Zongquan Sun
- School of Water Conservancy and Environment, University of Jinan, Jinan 250022, China
| | - Yibing Ma
- Macao Environmental Research Institute, Macau University of Science and Technology, 999078, Macao.
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Kuang L, Ye Y, Zhao X, Guo X, Xie W. Delineation of basic farmland based on the quality and spatial stability: a case study of Yingtan City, China. Environ Sci Pollut Res Int 2022; 29:88737-88750. [PMID: 35838939 DOI: 10.1007/s11356-022-21982-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 07/08/2022] [Indexed: 06/15/2023]
Abstract
Delimiting basic farmland is essential to ensure food security and maintain social stability. Determining the quantity and spatial layout of the basic farmland is the main aspect of delimitation. For a long time, superiors in local governments have mainly assigned the basic farmland quantity, which is prone to regional imbalance. The determination of the spatial layout is mainly based on the quality and contiguity of the cultivated land; however, spatial stability is not considered. Therefore, in this study, Yingtan City was used as an example to determine the scale of basic farmland based on the food security and multi-source data, construct a Land Evaluation and Site Assessment System model, evaluate the quality of cultivated land, and integrate the degree of agglomeration and compatibility of cultivated land to characterize its spatial stability. The quality and spatial stability of the cultivated land were combined to construct a matrix. The cultivated land patches must be selected according to the "scale limitation, stability priority, and quality superiority" principle. Finally, basic farmland covering an area of 75,946.34 hm2 was delineated, whose average quality index and spatial stability increased by 0.02 and 0.04, respectively. The landscape structure is more stable than the originally planned structure, which is conducive to the sustainable development of the cultivated land ecosystem. That is, a good delimitation effect was achieved, providing a reference for actual delimitation work.
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Affiliation(s)
- Lihua Kuang
- Key Laboratory of Poyang Lake Watershed Agricultural Resources and Ecology of Jiangxi Province, Jiangxi Agricultural University, Nanchang, 330045, China.
| | - Yingcong Ye
- Key Laboratory of Poyang Lake Watershed Agricultural Resources and Ecology of Jiangxi Province, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Xiaomin Zhao
- Key Laboratory of Poyang Lake Watershed Agricultural Resources and Ecology of Jiangxi Province, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Xi Guo
- Key Laboratory of Poyang Lake Watershed Agricultural Resources and Ecology of Jiangxi Province, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Wen Xie
- Key Laboratory of Poyang Lake Watershed Agricultural Resources and Ecology of Jiangxi Province, Jiangxi Agricultural University, Nanchang, 330045, China
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Cui Y, Zhang B, Ma J, Wang Y, Zhao L, Hou C, Yu J, Zhao Y, Zhang Z, Nie J, Gao T, Zhou G, Liu H. Dopamine receptor D2 gene polymorphism, urine fluoride, and intelligence impairment of children in China: A school-based cross-sectional study. Ecotoxicol Environ Saf 2018; 165:270-277. [PMID: 30205328 DOI: 10.1016/j.ecoenv.2018.09.018] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Revised: 08/27/2018] [Accepted: 09/02/2018] [Indexed: 06/08/2023]
Abstract
OBJECTIVE We aimed to study the association of urine fluoride with intelligence quotient (IQ) in children with a careful consideration of up to 30 potential confounding factors as well as possible heterogeneity of the relation between urine fluoride levels and IQ scores across children with different dopamine receptor-2 (DRD2) Taq 1A genotypes (CC, CT, and TT). METHODS A school-based cross-sectional study design was applied. A total of 323 children (2014-2015, 7-12 years old) were enrolled from four schools in both historical endemic and non-endemic areas of fluorosis in Tianjin of China using a cluster sampling method. Urine fluoride levels and age-specific IQ scores in children were measured at the enrollment. Polymerase chain reaction-restriction fragment length polymorphism methods were used to genotype DRD2 Taq 1A polymorphism with genomic DNA isolated from whole blood collected at the enrollment. Multiple linear regression models were applied to evaluate the relationship between urine fluoride levels and IQ scores overall and within the DRD2 Taq 1A SNP = CC/CT and TT subgroups. Model robustness was tested through bootstrap, sensitivity analysis, and cross-validation techniques. A safety threshold of urine fluoride levels for IQ impairment was determined in the subgroup TT. RESULTS In overall participants, the DRD2 Taq 1A polymorphism itself was not related to IQ scores in children who had a high level of urine fluoride. In the CC/CT subgroup, urine fluoride levels and IQ scores in children were unrelated (adjusted β (95% confidence interval (CI)) = - 1.59 (- 4.24, 1.05), p = 0.236). Among the participants carrying the TT genotype, there was a strong and robust negative linear relationship between log-urine fluoride and IQ scores in children (adjusted β (95% CI) = - 12.31 (- 18.69, - 5.94), p < 0.001). Urine fluoride levels had a stronger association with IQ in children carrying the TT genotype (adjusted β = - 12.31, bootstrapped standard error (SE) = 1.28), compared to that in overall participants (adjusted β = - 2.47, bootstrapped SE = 3.75) (Z = 2.483 and bootstrapped p = 0.007). The safety threshold of urine fluoride levels in the subgroup TT was 1.73 mg/L (95% CI = (1.51, 1.97) (mg/L)). CONCLUSIONS There is heterogeneity in the relation between urine fluoride and IQ across children carrying different DRD2 Taq 1A genotypes. Large-scale epidemiological studies are needed to confirm our findings.
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Affiliation(s)
- Yushan Cui
- Tianjin Centers for Disease Control and Prevention, 6 Huayue Road, Hedong District,Tianjin 300011, PR China
| | - Bin Zhang
- School of Public Health, Tianjin Medical University, 22 Qixiangtai Road, Heping District, Tianjin 300070, PR China
| | - Jing Ma
- Tianjin Cardiovascular Institute, Tianjin Chest Hospital, 261 Taierzhuang south road, Jinnan District, Tianjin 300050, PR China
| | - Yang Wang
- Tianjin Centers for Disease Control and Prevention, 6 Huayue Road, Hedong District,Tianjin 300011, PR China
| | - Liang Zhao
- Tianjin Centers for Disease Control and Prevention, 6 Huayue Road, Hedong District,Tianjin 300011, PR China
| | - Changchun Hou
- Tianjin Centers for Disease Control and Prevention, 6 Huayue Road, Hedong District,Tianjin 300011, PR China
| | - Jingwen Yu
- School of Public Health, Tianjin Medical University, 22 Qixiangtai Road, Heping District, Tianjin 300070, PR China
| | - Yang Zhao
- School of Public Health, Tianjin Medical University, 22 Qixiangtai Road, Heping District, Tianjin 300070, PR China
| | - Zushan Zhang
- School of Public Health, Tianjin Medical University, 22 Qixiangtai Road, Heping District, Tianjin 300070, PR China
| | - Junyan Nie
- School of Public Health, Tianjin Medical University, 22 Qixiangtai Road, Heping District, Tianjin 300070, PR China
| | - Tongning Gao
- School of Public Health, Tianjin Medical University, 22 Qixiangtai Road, Heping District, Tianjin 300070, PR China
| | - Guoli Zhou
- Biomedical Research Informatics Core (BRIC), Clinical and Translational Sciences Institute (CTSI), Michigan State University, 909 Fee Road, East Lansing, MI 48824, USA.
| | - Hongliang Liu
- Tianjin Centers for Disease Control and Prevention, 6 Huayue Road, Hedong District,Tianjin 300011, PR China; School of Public Health, Tianjin Medical University, 22 Qixiangtai Road, Heping District, Tianjin 300070, PR China.
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