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Ai J, Li J, Chang AK, Pei Y, Li H, Liu K, Li R, Xu L, Wang N, Liu Y, Su W, Liu W, Wang T, Jiang Z, Chen L, Liang X. Toxicokinetics and bioavailability of indoxacarb enantiomers and their new metabolites in rats. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2024; 203:106024. [PMID: 39084783 DOI: 10.1016/j.pestbp.2024.106024] [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: 06/13/2024] [Revised: 07/03/2024] [Accepted: 07/10/2024] [Indexed: 08/02/2024]
Abstract
Indoxacarb is a chiral insecticide that consists of two enantiomers, S-(+)-indoxacarb and R-(-)-indoxacarb, of which only S-(+)-indoxacarb has insecticidal activity. Previous enantioselective toxicology studies of indoxacarb focused mostly on simple environmental model organisms. The lack of a toxicology evaluation of indoxacarb conducted in a mammalian system could mean that the extent of the potential health risk posed by the insecticide to humans is not adequately known. In this study, we reported on a new pair of enantiomers, S-IN-RM294 and R-IN-RM294, derived from the metabolic breakdown of S-(+)-indoxacarb and R-(-)-indoxacarb, respectively, in rats. The toxicokinetics of S-(+)-indoxacarb, R-(-)-indoxacarb, S-IN-RM294, and R-IN-RM294 in rats were evaluated to provide a more comprehensive risk assessment of these molecules. The bioavailability and excretion rates of both S-(+)-indoxacarb and R-(-)-indoxacarb were relatively low, which may be due to their faster metabolism and accumulation in the tissues. In addition, there were significant differences in the metabolism and distribution between the two indoxacarb enantiomers and their metabolites in vivo. S-(+)-Indoxacarb was found to be more easily metabolized in the blood compared with R-(-)-indoxacarb, as shown by the differences in pharmacokinetic parameters between oral and intravenous administration. Analysis of their tissue distribution showed that S-(+)-indoxacarb was less likely to accumulate in most tissues. The results obtained for the two metabolites were consistent with those of the two parent compounds. S-IN-RM294 was more readily cleared from the blood and less likely to accumulate in the tissues compared with R-IN-RM294. Therefore, whether from the perspective of insecticidal activity or from the perspective of mammalian and environmental friendliness, the application of optically pure S-(+)-indoxacarb in agriculture may be a more efficient and safer strategy.
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Affiliation(s)
- Jiao Ai
- School of Pharmaceutical Sciences, Liaoning University, 66 Chongshan Road, Shenyang 110036, Liaoning Province, PR China
| | - Jianxin Li
- School of Pharmaceutical Sciences, Liaoning University, 66 Chongshan Road, Shenyang 110036, Liaoning Province, PR China
| | - Alan Kueichieh Chang
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou 325035, Zhejiang Province, PR China
| | - Ying Pei
- School of Pharmaceutical Sciences, Liaoning University, 66 Chongshan Road, Shenyang 110036, Liaoning Province, PR China
| | - Haoran Li
- School of Pharmaceutical Sciences, Liaoning University, 66 Chongshan Road, Shenyang 110036, Liaoning Province, PR China
| | - Kai Liu
- School of Pharmaceutical Sciences, Liaoning University, 66 Chongshan Road, Shenyang 110036, Liaoning Province, PR China
| | - Ruiyun Li
- School of Pharmaceutical Sciences, Liaoning University, 66 Chongshan Road, Shenyang 110036, Liaoning Province, PR China
| | - Liuping Xu
- School of Pharmaceutical Sciences, Liaoning University, 66 Chongshan Road, Shenyang 110036, Liaoning Province, PR China
| | - Nan Wang
- School of Pharmaceutical Sciences, Liaoning University, 66 Chongshan Road, Shenyang 110036, Liaoning Province, PR China
| | - Yuhui Liu
- School of Pharmaceutical Sciences, Liaoning University, 66 Chongshan Road, Shenyang 110036, Liaoning Province, PR China
| | - Weiping Su
- School of Pharmaceutical Sciences, Liaoning University, 66 Chongshan Road, Shenyang 110036, Liaoning Province, PR China
| | - Wenbao Liu
- School of Pharmaceutical Sciences, Liaoning University, 66 Chongshan Road, Shenyang 110036, Liaoning Province, PR China
| | - Tingting Wang
- School of Pharmaceutical Sciences, Liaoning University, 66 Chongshan Road, Shenyang 110036, Liaoning Province, PR China
| | - Zhen Jiang
- Department of Analytical Chemistry, College of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, Liaoning Province, PR China
| | - Lijiang Chen
- School of Pharmaceutical Sciences, Liaoning University, 66 Chongshan Road, Shenyang 110036, Liaoning Province, PR China.
| | - Xiao Liang
- School of Pharmaceutical Sciences, Liaoning University, 66 Chongshan Road, Shenyang 110036, Liaoning Province, PR China.
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Yi J, Gerbens-Leenes PW, Aldaya MM. Crop grey water footprints in China: The impact of pesticides on water pollution. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 935:173464. [PMID: 38788957 DOI: 10.1016/j.scitotenv.2024.173464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Revised: 05/02/2024] [Accepted: 05/21/2024] [Indexed: 05/26/2024]
Abstract
Agricultural water pollution is a significant challenge in China, a rapidly growing economy with a large agricultural sector. The grey water footprint (WF) is a tool for evaluating freshwater pollution. It expresses pollution in volumetric units identifying the pollutant that theoretically needs most water to be diluted to accepted water quality standards. Previous agricultural grey WF studies focused on nitrogen (N) and phosphorus (P), some studies included pesticides. This study assesses grey WFs based on N, P and 1513 pesticide combinations for twelve main crops and two crop categories in 31 Chinese provinces. Grey WFs, including the pesticide component, are far larger than estimated before, dominating total agricultural WFs (green, blue, and grey). The total grey WF of Chinese agriculture (4,900 109 m3 year-1) is determined by pesticides, while grey WFs related to N and P are 450 and 1,500 109 m3 year-1, differences of a factor of eleven and three respectively. The provinces Heilongjiang, Inner Mongolia, Hebei, Henan, and Shandong are hotspots contributing 37 % to the total grey WF. A limited number of pesticides used for maize, vegetables, fruits and potato (Mancozeb a fungicide, Acetochlor a herbicide and Cypermethrin an insecticide) dominate total grey WFs, contributing 80 % to the total grey WF. Eliminating the most polluting pesticides per category and redistributing the remaining ones with a similar function but lower grey WFs reduces national water pollution from agriculture by 64 %. Only five crops, i.e. maize, potato, soybean, rice and wheat, and the two crop categories, vegetables and fruits, contribute 94 % to this reduction. Probably grey WFs could reduce even further with a second elimination and redistribution effort. This study is the first national grey WF assessment related to pesticides in agriculture. It offers valuable insights to farmers and policymakers to enhance water quality in China and beyond.
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Affiliation(s)
- J Yi
- Integrated Research on Energy, Environment and Society (IREES), University of Groningen, Groningen, the Netherlands.
| | - P W Gerbens-Leenes
- Integrated Research on Energy, Environment and Society (IREES), University of Groningen, Groningen, the Netherlands
| | - M M Aldaya
- Science Department, Public University of Navarre (UPNA), Pamplona, Spain; Institute for Sustainability & Food Chain Innovation (IS-FOOD), Public University of Navarra (UPNA), Pamplona, Spain
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Huang Y, Zhang X, Li Z. Analysis of nationwide soil pesticide pollution: Insights from China. ENVIRONMENTAL RESEARCH 2024; 252:118988. [PMID: 38663666 DOI: 10.1016/j.envres.2024.118988] [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: 03/05/2024] [Revised: 04/02/2024] [Accepted: 04/21/2024] [Indexed: 05/12/2024]
Abstract
China is a typical agricultural country that heavily relies on pesticides. Some pesticides can remain in the soil after application and thus pose a significant threat to human health. In order to characterize the status and hazards of nationwide soil contamination, this study extracted concentration data from published literature and analyzed them by a scoring approach, standard comparison and health risk assessment. For the soil pollution score, northern regions got the highest values, such as Henan (0.63), Liaoning (0.55), Heilongjiang (0.54) and Jilin (0.53), which implies high soil pesticide residues in these provinces. In contrast, Qinghai (-0.77), Guizhou (-0.64) and Tibet (-0.63) had lower scores. China's soil pesticide standards cover only 16 pesticides, and these pesticide concentrations were all below the corresponding standards. Direct exposure to soil pesticides in this study generally posed a negligible risk to children. Furthermore, pesticide dissipation and usage intensity in each province were analyzed as they were possible influences on pollution. The result showed that soil in the northern regions could accumulate more pesticides than those in the southern regions, and this geographic pattern was basically consistent with the distribution of soil pollution. However, the relationship between agricultural activities and soil pollution was less well characterized. It is recommended to establish a long-term monitoring database for pesticides and include more pesticides in regulatory frameworks. Additionally, efforts to accelerate pesticide degradation and shift the planting structure to reduce pesticide usage can help alleviate the pressure on soil from pesticides. This study can serve as a critical reference for policymakers and stakeholders in the field of agriculture.
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Affiliation(s)
- Yabi Huang
- School of Public Health (Shenzhen), Sun Yat-sen University, Shenzhen, Guangdong, 518107, China
| | - Xiaoyu Zhang
- School of Public Health (Shenzhen), Sun Yat-sen University, Shenzhen, Guangdong, 518107, China
| | - Zijian Li
- School of Public Health (Shenzhen), Sun Yat-sen University, Shenzhen, Guangdong, 518107, China.
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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: 9] [Impact Index Per Article: 9.0] [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.
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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.
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Intisar A, Ramzan A, Hafeez S, Hussain N, Irfan M, Shakeel N, Gill KA, Iqbal A, Janczarek M, Jesionowski T. Adsorptive and photocatalytic degradation potential of porous polymeric materials for removal of pesticides, pharmaceuticals, and dyes-based emerging contaminants from water. CHEMOSPHERE 2023:139203. [PMID: 37315851 DOI: 10.1016/j.chemosphere.2023.139203] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 04/04/2023] [Accepted: 06/11/2023] [Indexed: 06/16/2023]
Abstract
Life on earth is dependent on clean water, which is crucial for survival. Water supplies are getting contaminated due to the growing human population and its associated industrialization, urbanization, and chemically improved agriculture. Currently, a large number of people struggle to find clean drinking water, a problem that is particularly serious in developing countries. To meet the enormous demand of clean water around the world, there is an urgent need of advanced technologies and materials that are affordable, easy to use, thermally efficient, portable, environmentally benign, and chemically durable. The physical, chemical and biological methods are used to eliminate insoluble materials and soluble pollutants from wastewater. In addition to cost, each treatment carries its limitations in terms of effectiveness, productivity, environmental effect, sludge generation, pre-treatment demands, operating difficulties, and the creation of potentially hazardous byproducts. To overcome the problems of traditional methods, porous polymers have distinguished themselves as practical and efficient materials for the treatment of wastewater because of their distinctive characteristics such as large surface area, chemical versatility, biodegradability, and biocompatibility. This study overviews improvement in manufacturing methods and the sustainable usage of porous polymers for wastewater treatment and explicitly discusses the efficiency of advanced porous polymeric materials for the removal of emerging pollutants viz. pesticides, dyes, and pharmaceuticals whereby adsorption and photocatalytic degradation are considered to be among the most promising methods for their effective removal. Porous polymers are considered excellent adsorbents for the mitigation of these pollutants as they are cost-effective and have greater porosities to facilitate penetration and adhesion of pollutants, thus enhance their adsorption functionality. Appropriately functionalized porous polymers can offer the potential to eliminate hazardous chemicals and making water useful for a variety of purposes thus, numerous types of porous polymers have been selected, discussed and compared especially in terms of their efficiencies against specific pollutants. The study also sheds light on numerous challenges faced by porous polymers in the removal of contaminants, their solutions and some associated toxicity issues.
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Affiliation(s)
- Azeem Intisar
- School of Chemistry, University of the Punjab, 54590, Pakistan.
| | - Arooj Ramzan
- School of Chemistry, University of the Punjab, 54590, Pakistan
| | - Shahzar Hafeez
- School of Chemistry, University of the Punjab, 54590, Pakistan
| | - Nazim Hussain
- Center for Applied Molecular Biology (CAMB), University of the Punjab Lahore, Pakistan
| | - Muhammad Irfan
- Department of Biomedical Physics, Doctoral School of Exact Sciences, Adam Mickiewicz University Poznan, Poland
| | - Nasir Shakeel
- Faculty of Chemistry, Silesian University of Technology, Gliwice, Poland
| | - Komal Aziz Gill
- Division of Geochronology and Environmental Isotopes, Silesian University of Technology, Konarskiego 22B, 44-100, Gliwice, Poland
| | - Amjad Iqbal
- Department of Materials Technologies, Faculty of Materials Engineering, Silesian University of Technology, 44-100, Gliwice, Poland; Centre for Mechanical Engineering Materials and Processes, Department of Mechanical Engineering, University of Coimbra, Rua Lui's Reis Santos, 3030-788, Coimbra, Portugal
| | - Marcin Janczarek
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, PL-60965, Poznan, Poland
| | - Teofil Jesionowski
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, PL-60965, Poznan, Poland.
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Zhang W, Di S, Yan J. Chiral pesticides levels in peri-urban area near Yangtze River and their correlations with water quality and microbial communities. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2023; 45:3817-3831. [PMID: 36586031 DOI: 10.1007/s10653-022-01459-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 12/08/2022] [Indexed: 06/01/2023]
Abstract
Pesticides are considered to be the second-largest non-point source pollution in water. Our research assayed the river network of typical agricultural areas in the middle and lower Yangtze River as the study area. Pesticides residues in aquatic environment were determined by QuEChERS, combined with high-performance liquid chromatography tandem mass spectrometry, or gas chromatograph-mass spectrometer. At chiral pesticides' levels, we detected pesticides contents in water, classified and counted the types of pesticides, and analyzed their environmental risk assessment. Furthermore, potential correlations between chiral pesticides concentrations and water quality indicators were assayed. Additionally, we explored their relations with microbial communities at species levels. Enantiomers of Diclofop-methyl, Ethiprole, Difenoconazole and Epoxiconazole were enantioselectively distributed. More interestingly, due to various chiral environment of the sampling site, the enantiomers of Tebuconazole Acetochlor, Glufosinate ammonium and Bifenthrin had completely different distributions at different sites. Based on that, the chiral pesticides Diclofop-methyl, Bifenthrin, Ethiprole, Tebuconazole and Difenoconazole are enantioselective to the risk of aquatic environment. Generally, enantiomeric selectivity had high positive correlations with total nitrogen and phosphorus. Then we found that chiral fate behavior of Tebuconazole and Paichongding in water might be affected by prokaryotes. In addition, the chiral behavior of Diclofop-methyl, Propiconazole, Difenoconazole, and Tebuconazole isomers in water might be negatively affected by eukaryotes. That research helped us to comprehensively understand the impact of non-point source pollution of chiral pesticides in aquatic environment and provided basic data support for developing biological and water quality indicators for monitoring pollution in aquatic environment.
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Affiliation(s)
- Wenjun Zhang
- Key Laboratory of Integrated Regulation and Resources Development On Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, China.
| | - Shanshan Di
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products/ Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-Product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
| | - Jin Yan
- National and Local Joint Engineering Laboratory of Municipal Sewage Resource Utilization Technology, School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China
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Liu X, Xin L. Spatial and temporal evolution and greenhouse gas emissions of China's agricultural plastic greenhouses. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 863:160810. [PMID: 36496028 DOI: 10.1016/j.scitotenv.2022.160810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 11/16/2022] [Accepted: 12/05/2022] [Indexed: 06/17/2023]
Abstract
The rapid development of the use of agricultural plastic greenhouses in China in recent years has played an important role in the generation of economic benefits from agriculture. However, it has also led to severe negative environmental impacts. Thus, it is necessary to explore the spatial and temporal evolution of agricultural plastic greenhouses in China as well as their environmental impacts so as to obtain a deeper understanding of agricultural intensification and the sustainable development of the facility agriculture industry. To this end, this study analyzed the spatial and temporal evolution characteristics of agricultural plastic greenhouses and their greenhouse gas emissions within the 2000-2020 period based on the extraction of the spatial distribution of greenhouses in China in 2000, 2010, and 2020. Landsat imagery and statistical data combined with the random forest classification method as well as life cycle analysis, were used in this study. The results obtained showed that: (1) Within the 2000-2020 period, the area covered by agricultural plastic greenhouses in China expanded from 1594.66 to 11,838.77 km2, with most of the greenhouses predominantly distributed in the North China Plain. (2) The increase in total greenhouse gas emissions between 2000 and 2010 was mainly due to the expansion of agricultural plastic greenhouse and an increase in agricultural material inputs, whereas the increase between 2010 and 2020 was mainly due to the expansion of agricultural plastic greenhouse. (3) Greenhouse gas emissions from nitrogenous fertilizers and greenhouse construction materials accounted for 45 % and 36 % of the total greenhouse gas emissions, respectively. These findings are of great significance as they enhance understanding regarding land intensification development and its accompanying environmental impacts in China.
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Affiliation(s)
- Xiaoyu Liu
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Liangjie Xin
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China.
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Centanni M, Ricci GF, De Girolamo AM, Romano G, Gentile F. A review of modeling pesticides in freshwaters: Current status, progress achieved and desirable improvements. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 316:120553. [PMID: 36347410 DOI: 10.1016/j.envpol.2022.120553] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 10/25/2022] [Accepted: 10/28/2022] [Indexed: 06/16/2023]
Abstract
This study comprises a critical review of modeling of pesticides in surface waters. The aim was to update the status of the use of models to simulate the fate of pesticides from diffuse sources. ISI papers were selected on Scopus and the information concerning the study areas, type of pesticides (herbicides, fungicides and insecticides), the model, and the methodology adopted (i.e., calibration and/or validation, spatial and temporal scales) were analyzed. The studies were carried out in Europe (55.5%), North America (22.3%), Asia (13.9%) and South America (8.3%). The Soil and Water Assessment Tool proved to be the most used model (45.95%). Herbicides were the most modeled pesticides (71.4%), followed by insecticides (18.2%) and fungicides (10.4%). The main herbicides modeled were atrazine, metolachlor, isoproturon, glyphosate, and acetochlor. Insecticides such as chlorpyrifos and metaldehyde. Chlorothalonil, and fungicides (i.e., tebuconazole) were the most widely investigated. Based on published studies, it was found that modeling approaches for assessing the fate of pesticides are constantly evolving and the model algorithms work well with diverse watershed conditions, management strategies, and pesticide properties. Several papers reported concentrations of pesticides exceeding ecotoxicological thresholds revealing that water contamination with pesticides used in agriculture and urban areas is a priority issue of current global concern.
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Affiliation(s)
- M Centanni
- University of Bari Aldo Moro, Department of Agricultural and Environmental Sciences, Bari, Italy
| | - G F Ricci
- University of Bari Aldo Moro, Department of Agricultural and Environmental Sciences, Bari, Italy.
| | - A M De Girolamo
- National Research Council, Water Research Institute (IRSA-CNR), Bari, Italy
| | - G Romano
- University of Bari Aldo Moro, Department of Agricultural and Environmental Sciences, Bari, Italy
| | - F Gentile
- University of Bari Aldo Moro, Department of Agricultural and Environmental Sciences, Bari, Italy
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Yan X, Zhang Z, Chen L, Jiao C, Zhu K, Guo J, Pang M, Jin Z, Shen Z. Pesticide fate at watershed scale: A new framework integrating multimedia behavior with hydrological processes. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 319:115758. [PMID: 35982562 DOI: 10.1016/j.jenvman.2022.115758] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 06/29/2022] [Accepted: 07/12/2022] [Indexed: 06/15/2023]
Abstract
Pesticide pollution has been one serious ecological and environmental issue due to its wide application, high toxicity, and complex environmental behavior. The fugacity model has been widely used to quantify biogeochemical cycles of pesticides due to its clear compartments, simple structure, and easy-accessible data. However, the lack of detailed hydrological processes limits its application for large and heterogeneous watershed. In present study, a new framework was proposed through integration of hydrological processes of SWAT and pesticide fate of fugacity model, and was applied into a typical watershed in the Three Gorges Reservoir Area, China. The results showed that surface runoff, soil erosion, and percolation varied spatiotemporally, which highlighted the importance of considering regional and seasonal heterogeneity of pesticide transport variables in the fugacity model. The amount of dichlorvos (DDV) and chlorpyrifos (CHP) in air, water, soil, and sediment phase were estimated as 0.26 kg, 19.77 kg, 1.06 × 104 kg, and 0.55 kg, respectively. Spatiotemporally, pesticide concentrations in water phase peaked in summer, while the middle and southwest regions of the watershed were identified as the hotspots for pesticide pollution. Compared with the classical model, the new framework provided technical support for the pesticide assessment at watershed scale with heterogeneous hydrological conditions, which can be easily extended to other watersheds, and integrated with other models for comprehensive agricultural management.
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Affiliation(s)
- Xiaoman Yan
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, 100875, PR China
| | - Ziqi Zhang
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, 100875, PR China
| | - Lei Chen
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, 100875, PR China.
| | - Cong Jiao
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, 100875, PR China
| | - Kaihang Zhu
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, 100875, PR China
| | - Jinsong Guo
- Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, 400045, PR China
| | - Mingyue Pang
- Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, 400045, PR China
| | - Zhongtian Jin
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, 100875, PR China
| | - Zhenyao Shen
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, 100875, PR China
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Li A, Wang M, Kroeze C, Ma L, Strokal M. Past and future pesticide losses to Chinese waters under socioeconomic development and climate change. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 317:115361. [PMID: 35613533 DOI: 10.1016/j.jenvman.2022.115361] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 05/11/2022] [Accepted: 05/17/2022] [Indexed: 06/15/2023]
Abstract
Increasing pesticide use pollutes Chinese surface waters. Pesticides often enter waters through surface runoff from agricultural fields. This occurs especially during heavy rainfall events. Socio-economic development and climate change may accelerate future loss of pesticides to surface waters due to increasing food production and rainfall events. The main objective of this study is to model past and future pesticide losses to Chinese waters under socio-economic development and climate change. To this end, we developed a pesticide model with local information to quantify the potential pesticide runoff from near-stream agriculture to surface waters after heavy rainfall. We project future trends in potential pesticide runoff. For this, we developed three scenarios: Sustainability, "Middle of the Road" and Economy-first. These scenarios are based on combined Shared Socio-economic Pathways and Representative Concentration Pathways. We identified hotspots with high potential pesticide runoff. The results show that the potential pesticide runoff increased by 45% from 2000 to 2010, nationally. Over 50% of the national pesticide runoff in 2000 was in five provinces. Over 60% of the Chinese population lived in pesticide polluted hotspots in 2000. For the future, trends differ among scenarios and years. The largest increase is projected for the Economy-first scenario, where the potential pesticide runoff is projected to increase by 85% between 2010 and 2099. Future pesticide pollution hotspots are projected to concentrate in the south and south-east of China. This is the net-effect of high pesticide application, intensive crop production and high precipitation due to climate change. In our scenarios, 58%-84% of the population is projected to live in pesticide polluted hotspots from 2050 onwards. These projections can support the development of regional management strategies to control pesticide pollution in waters in the future.
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Affiliation(s)
- Ang Li
- Key Laboratory of Agricultural Water Resources, Center for Agricultural Resources Research, Institute of Genetic and Developmental Biology, The Chinese Academy of Sciences, 286 Huaizhong Road, Shijiazhuang, 050021, Hebei, China; Water Systems and Global Change Group, Wageningen University & Research, P.O. Box 47, 6700 AA, Wageningen, the Netherlands
| | - Mengru Wang
- Water Systems and Global Change Group, Wageningen University & Research, P.O. Box 47, 6700 AA, Wageningen, the Netherlands
| | - Carolien Kroeze
- Water Systems and Global Change Group, Wageningen University & Research, P.O. Box 47, 6700 AA, Wageningen, the Netherlands
| | - Lin Ma
- Key Laboratory of Agricultural Water Resources, Center for Agricultural Resources Research, Institute of Genetic and Developmental Biology, The Chinese Academy of Sciences, 286 Huaizhong Road, Shijiazhuang, 050021, Hebei, China
| | - Maryna Strokal
- Water Systems and Global Change Group, Wageningen University & Research, P.O. Box 47, 6700 AA, Wageningen, the Netherlands.
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11
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Lian Z, Gu X, Liu L, Zhao X. Diffuse phthalate acid esters losses induced from large amount of agricultural plastic film residues caused low risks for water quality in China during 1991-2017. JOURNAL OF HAZARDOUS MATERIALS 2022; 431:128644. [PMID: 35359115 DOI: 10.1016/j.jhazmat.2022.128644] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 02/22/2022] [Accepted: 03/05/2022] [Indexed: 06/14/2023]
Abstract
Extensive application of agricultural plastic films has resulted in abundant film residues in farmlands. Phthalate acid esters (PAEs) are vital additives of the agricultural plastic film and are easily emitted into soils. However, spatio-temporal variations of diffuse PAEs loss to water bodies have not been explored in China. This study used an integrated estimation framework and high-resolution activity data to conduct a comprehensive inventory of diffuse PAEs loss associated with plastic films of six main crop types in China for 1991-2017. We found that the diffuse PAEs loss induced from agricultural plastic films increased 10.57-46.30 kg over the same time. Di-butyl phthalate (DBP) and bis(2-ethylhexyl) phthalate (DEHP) accounted for ~75% of the national total loss. High PAEs loss regions are mainly located in Eastern China, the Middle-Lower Yangtze Plain, and eastern Yunnan and Sichuan provinces. We proved that PAEs emission, agricultural film residues, surface runoff, precipitation, and soil organic carbon explained 19.64%, 17.50%, 15.45%, 12.88%, and 9.83% of the total variation, respectively. The potential ecological risks to the various aquatic species were assessed to be low. Overall, our results are valuable for addressing severe agricultural plastic film residues and associated pollutant emissions and losses in China.
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Affiliation(s)
- Zhongmin Lian
- State Key Laboratory of Grassland Agro-Ecosystem, College of Ecology, Lanzhou University, Lanzhou 730000, China.
| | - Xiang Gu
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Lianhua Liu
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Xumao Zhao
- State Key Laboratory of Grassland Agro-Ecosystem, College of Ecology, Lanzhou University, Lanzhou 730000, China.
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12
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Li L, Yin Y, Zheng G, Liu S, Zhao C, Xie W, Ma L, Shan Q, Dai X, Wei L. Determination of multiclass herbicides in sediments and aquatic products using QuECHERS combined with ultra-high performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS) and its application to risk assessment of rice-fish co-culture system in China. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106628] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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13
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Supe Tulcan RX, Ouyang W, Gu X, Lin C, Tysklind M, Wang B. Typical herbicide residues, trophic transfer, bioconcentration, and health risk of marine organisms. ENVIRONMENT INTERNATIONAL 2021; 152:106500. [PMID: 33714869 DOI: 10.1016/j.envint.2021.106500] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 02/03/2021] [Accepted: 03/01/2021] [Indexed: 06/12/2023]
Abstract
Atrazine, a potent herbicide for weeds removal during the growing season, has been widely used in China. It is known to be distributed in aquatic ecosystems with a long half-life, thus presenting a potential risk to species and consumers. This study analyzed the concentrations of degraded atrazine residues in marine organisms (N = 129) including 3 species of mollusks, 2 species of crustaceans, and 15 species of fish from a semi-enclosed bay, Jiaozhou Bay (JZB), adjacent to the Northwest Pacific Ocean in China. The corresponding trophic magnification factors (TMF), bioaccumulation factors (BCFs), and subsequent risks to final consumers were also determined. The results showed an average atrazine concentration of (0.301 ± 0.03) ng g-1 and (0.305 ± 0.04) ng g-1 in fish and invertebrates, respectively. The BCFs were (5.23 ± 1.75) L kg-1 and (5.81 ± 1.31) L kg-1 for fish and invertebrates, respectively. Atrazine was significantly bio-diluted in JZB through the sampled marine organisms with increasing trophic levels, with a TMF value below 1 (P < 0.01). An analysis of the species sensitivity distribution (SSD) predicted that<0.02% of species were exposed to a dissolved concentration of atrazine (57.88 ng L-1) that would lead to detrimental effects, while risk quotients predicted low long-term risks for species in the bay. Finally, people with a diet limited to species from JZB were found to face no associated health risk due to a significantly small daily intake and target hazard quotient of atrazine. The corresponding non-carcinogenic effect showed no significant risk from seafood consumption.
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Affiliation(s)
- Roberto Xavier Supe Tulcan
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Wei Ouyang
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China.
| | - Xiang Gu
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Chunye Lin
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Mats Tysklind
- Department of Chemistry, Umeå University, SE-901 87 Umeå, Sweden
| | - Baodong Wang
- The First Institute of Oceanography, Ministry of Natural Resources, 6 Xianxialing Road, Qingdao 266061, China
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Hyder S, Gondal AS, Rizvi ZF, Atiq R, Haider MIS, Fatima N, Inam-Ul-Haq M. Biological Control of Chili Damping-Off Disease, Caused by Pythium myriotylum. Front Microbiol 2021; 12:587431. [PMID: 34054741 PMCID: PMC8155717 DOI: 10.3389/fmicb.2021.587431] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Accepted: 04/12/2021] [Indexed: 11/21/2022] Open
Abstract
Pythium myriotylum is a notorious soil-borne oomycete that causes post-emergence damping-off in chili pepper. Of various disease management strategies, utilization of plant growth promoting rhizobacteria (PGPR) in disease suppression and plant growth promotion is an interesting strategy. The present study was performed to isolate and characterize PGPR indigenous to the chili rhizosphere in Pakistan, and to test the potential to suppress the damping-off and plant growth promotion in chili. Out of a total of 28 antagonists, eight bacterial isolates (4a2, JHL-8, JHL-12, 1C2, RH-24, 1D, 5C, and RH-87) significantly suppressed the colony growth of P. myriotylum in a dual culture experiment. All the tested bacterial isolates were characterized for biochemical attributes, and 16S rRNA sequence based phylogenetic analysis identified these isolates as Flavobacterium spp., Bacillus megaterium, Pseudomonas putida, Bacillus cereus, and Pseudomonas libanensis. All the tested bacterial isolates showed positive test results for ammonia production, starch hydrolase (except 4a2), and hydrogen cyanide production (except 4a2 and 1D). All the tested antagonists produced indole-3-acetic acid (13.4–39.0 μg mL–1), solubilized inorganic phosphate (75–103 μg mL–1), and produced siderophores (17.1–23.7%) in vitro. All the tested bacterial isolates showed varying levels of susceptibility and resistance response against different antibiotics and all these bacterial isolates were found to be non-pathogenic to chili seeds and notably enhanced percentage seed germination, plumule, redical length, and vigor index over un-inoculated control. Additionally, under pathogen pressure, bacterization increased the defense related enzymes such as Peroxidase (PO), polyphenol oxidase (PPO), and phenylalanine ammonia-lyase (PAL) activates. Moreover, the treatment of chili seeds with these bacterial isolates significantly suppressed the damping-off caused by P. myriotylum and improved PGP traits compared to the control. In addition, a positive correlation was noticed between shoot, root length, and dry shoot and root weight, and there was a negative correlation between dry shoot, root weight, and seedling percentage mortality. These results showed that native PGPR possesses multiple traits beneficial to the chili plants and can be used to develop eco-friendly and effective seed treatment formulation as an alternative to synthetic chemical fungicides.
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Affiliation(s)
- Sajjad Hyder
- Department of Botany, Government College Women University, Sialkot, Pakistan
| | | | - Zarrin Fatima Rizvi
- Department of Botany, Government College Women University, Sialkot, Pakistan
| | - Rashida Atiq
- Department of Plant Pathology, Bahauddin Zakariya University, Multan, Pakistan
| | | | - Nida Fatima
- Department of Soil Science and SWC, PMAS Arid Agriculture University, Rawalpindi, Pakistan
| | - Muhammad Inam-Ul-Haq
- Department of Plant Pathology, PMAS Arid Agriculture University, Rawalpindi, Pakistan
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15
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Recessive Transition Mechanism of Arable Land Use Based on the Perspective of Coupling Coordination of Input–Output: A Case Study of 31 Provinces in China. LAND 2021. [DOI: 10.3390/land10010041] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In the rapid process of urbanization in China, arable land resources are faced with dual challenges in terms of quantity and quality. Starting with the change in the coupling coordination relationship between the input and output on arable land, this study applies an evaluation model of the degree of coupling coordination between the input and output (D_CCIO) on arable land and deeply analyzes the recessive transition mechanism and internal differences in arable land use modes in 31 provinces on mainland China. The results show that the total amount and the amount per unit area of the input and output on arable land in China have presented different spatio-temporal trends, along with the mismatched movement of the spatial barycenter. Although the D_CCIO on arable land increases slowly as a whole, 31 provinces show different recessive transition mechanisms of arable land use, which is hidden in the internal changes in the input–output structure. The results of this study highlight the different recessive transition patterns of arable land use in different provinces of China, which points to the outlook for higher technical input, optimized planting structure, and the coordination of human-land relationships.
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16
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Sun S, Jiang T, Lin Y, Song J, Zheng Y, An D. Characteristics of organic pollutants in source water and purification evaluations in drinking water treatment plants. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 733:139277. [PMID: 32446067 DOI: 10.1016/j.scitotenv.2020.139277] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 05/02/2020] [Accepted: 05/06/2020] [Indexed: 06/11/2023]
Abstract
The release of contaminants of emerging concern (CECs) into water bodies has aroused wide concern in recent years. Little information on the characteristics of CECs to pose potential risks even at low concentrations in urban water systems of Shanghai is available. This study investigated the occurrence and spatial distribution in source water, as well as the fates by drinking water treatment processes for organic compounds including 35 pesticides, 17 antibiotics, 7 microcystins (MCs), and 10 disinfection by-products (DBPs). The similar trends across seasons for COD and TOC, the indicators for organic pollutants, indicated that the water qualities in three targeted reservoirs were relatively stable. COD in the R3 reservoir inlet was 1.3-2.4 times greater than that in the R1 and R2 reservoirs, possibly resulting from the inflow of the Taipu River as a tributary. Pesticides, particularly methamidophos and metabolites, macrolide and sulfonamide antibiotics, particularly roxithromycin, were frequently detected in Shanghai source water inlets. Pesticide concentrations were 2.58-3.66 μg/L much higher than antibiotics (8.6-47.6 ng/L). The results showed that MCs (ng/L) and DBPs (haloacetic acids, HAAs μg/L; N-nitrosodimethylamine, NDMA ng/L) were found to be in low detection frequencies. It was found that 51.1-74.6% of organic matters in source water were composed of molecular weight (MW) <1 kDa. The removal rates for the part of MW <1 kDa were only 11.7-12.3% through the conventional treatment processes, compared with higher removal rates of 23.5-28.5% by advanced treatment processes. Pesticides, antibiotics and MCs can be significantly removed by six drinking water treatment plants.
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Affiliation(s)
- Sainan Sun
- Department of Environmental Science & Engineering, Fudan University, 2205 Songhu Road, Shanghai 200438, PR China
| | - Tingting Jiang
- Department of Environmental Science & Engineering, Fudan University, 2205 Songhu Road, Shanghai 200438, PR China
| | - Yujin Lin
- Department of Environmental Science & Engineering, Fudan University, 2205 Songhu Road, Shanghai 200438, PR China
| | - Jiaxiu Song
- Department of Environmental Engineering, School of Environmental and Geographical Sciences, Shanghai Normal University, Shanghai 200234, PR China.
| | - Yuanyuan Zheng
- Department of Environmental Engineering, School of Environmental and Geographical Sciences, Shanghai Normal University, Shanghai 200234, PR China
| | - Dong An
- Department of Environmental Science & Engineering, Fudan University, 2205 Songhu Road, Shanghai 200438, PR China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, PR China
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17
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Jiao C, Chen L, Sun C, Jiang Y, Zhai L, Liu H, Shen Z. Evaluating national ecological risk of agricultural pesticides from 2004 to 2017 in China. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 259:113778. [PMID: 31918127 DOI: 10.1016/j.envpol.2019.113778] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 12/08/2019] [Accepted: 12/08/2019] [Indexed: 06/10/2023]
Abstract
In recent years, excessive application and loss of pesticides have caused great risks to the aquatic systems, but the spatio-temporal variability in the ecological risk that agricultural pesticides pose to aquatic systems has not been explored at the national scale. In this study, an integrated assessment framework was proposed for the potential ecological risk of surface water caused by agricultural pesticide loss. The spatio-temporal variability in the potential ecological risk caused by agricultural pesticide runoff was evaluated. Based on the results, the total pesticide emissions increased from 165.47 tons in 2004 to 179.77 tons in 2017. Among the three pesticide types, insecticide had the largest application, but its runoff was estimated as the lowest. High-risk areas of insecticide runoff were concentrated in the east, south and central part of China, while the central region of China was identified as a hotspot due to the high and the ever-increasing ecological risk. This study provides an integrated method for potential ecological risk assessment of agricultural pesticide runoff to adjacent water bodies in large-scale regions and the results of the study have direct implications for environmental policies on pesticide management in China and around the world.
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Affiliation(s)
- Cong Jiao
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, PR China
| | - Lei Chen
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, PR China.
| | - Cheng Sun
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, PR China
| | - Yue Jiang
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, PR China
| | - Limei Zhai
- Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Key Laboratory of Non-point Source Pollution Control, Ministry of Agriculture, Beijing 100081, PR China
| | - Hongbin Liu
- Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Key Laboratory of Non-point Source Pollution Control, Ministry of Agriculture, Beijing 100081, PR China
| | - Zhenyao Shen
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, PR China
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18
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Huang F, Li Z, Zhang C, Habumugisha T, Liu F, Luo X. Pesticides in the typical agricultural groundwater in Songnen plain, northeast China: occurrence, spatial distribution and health risks. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2019; 41:2681-2695. [PMID: 31129745 DOI: 10.1007/s10653-019-00331-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Accepted: 05/18/2019] [Indexed: 06/09/2023]
Abstract
Songnen plain is an important commodity grain base of China, and this is the first study on the comprehensive detection of multiple pesticides in groundwater. Based on an analytical method of 56 pesticides, 30 groundwater samples were collected and analyzed. At least 4 pesticides were detected in each sample and 32 out of 56 pesticides were detected. The average detected levels of individual pesticides were approximately 10-100 ng/L. Organophosphorus pesticides and carbamate pesticides were the dominant pesticides, and their percentage of total pesticide concentrations were 35.9% and 55.5%, respectively. Based on the spatial distribution, the characteristic of nonpoint source pollution was indicated in the whole study area except for a point source pollution with the influence of a sewage oxidation pond. Nine core pesticides and three distinct clusters of the core pesticides with various concentration patterns were revealed by cluster analysis. Linear regression identified a significant relationship between the cumulative detections and the cumulative concentrations, providing access to identify the outlying contaminant events that deviate substantially from the linear trend. A new insight for prediction of pesticide occurrence was provided by the Pearson correlation between some individual pesticide concentrations and the cumulative detections or the cumulative concentrations. According to health risk assessment, the residual pesticides posed medium risks for children and infants and approximately 90% of risks were composed of β-HCH, dimethoate, ethyl-p-nitrophenyl phenylphosphonothioate and methyl parathion. These findings contributed to establishing a database for future monitoring and control of pesticides in agricultural areas.
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Affiliation(s)
- Fuyang Huang
- MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences (Beijing), Beijing, 100083, People's Republic of China
- Beijing Key Laboratory of Water Resources and Environmental Engineering, China University of Geosciences (Beijing), Beijing, 100083, People's Republic of China
| | - Zeyan Li
- MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences (Beijing), Beijing, 100083, People's Republic of China
- Beijing Key Laboratory of Water Resources and Environmental Engineering, China University of Geosciences (Beijing), Beijing, 100083, People's Republic of China
| | - Chong Zhang
- MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences (Beijing), Beijing, 100083, People's Republic of China
- Beijing Key Laboratory of Water Resources and Environmental Engineering, China University of Geosciences (Beijing), Beijing, 100083, People's Republic of China
| | - Théogène Habumugisha
- MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences (Beijing), Beijing, 100083, People's Republic of China
- Beijing Key Laboratory of Water Resources and Environmental Engineering, China University of Geosciences (Beijing), Beijing, 100083, People's Republic of China
| | - Fei Liu
- MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences (Beijing), Beijing, 100083, People's Republic of China
- Beijing Key Laboratory of Water Resources and Environmental Engineering, China University of Geosciences (Beijing), Beijing, 100083, People's Republic of China
| | - Ximing Luo
- School of Ocean Sciences, China University of Geosciences (Beijing), Beijing, 100083, People's Republic of China.
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19
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Sun C, Chen L, Zhai L, Liu H, Jiang Y, Wang K, Jiao C, Shen Z. National assessment of spatiotemporal loss in agricultural pesticides and related potential exposure risks to water quality in China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 677:98-107. [PMID: 31054443 DOI: 10.1016/j.scitotenv.2019.04.346] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 04/09/2019] [Accepted: 04/23/2019] [Indexed: 06/09/2023]
Abstract
Pesticide loss during agricultural development has a serious effect on related water quality, and the critical concern is quantifying the potential exposure risks that pesticide loss pose to water quality at the national scale. In this study, an integrated assessment framework is proposed to scale emission factors from 232 monitoring plots to the national scale, while also considering the physicochemical properties of pesticides in dissolved or adsorbed forms. Based on the results of this study, the total pesticide emissions increased by 29.39% from 146.55 tons in 2004 to 189.62 tons in 2013 and the average loss intensities of insecticides, herbicides and fungicides were 35.25 g/km2, 44.24 g/km2 and 48.57 g/km2, respectively. Central and Southeastern China are identified as hotspots for pesticide loss, while the proportions of high or extremely high-risk areas mainly comprise >50% of farmland. In addition, single-field crops and single-crop rice are the major cropping patterns for pesticide loss in Northern and Southern China. Our results identify key areas for the management of pesticides at the national scale and have direct implications for environmental policies on reducing the potential exposure risk of agricultural pesticides to water quality.
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Affiliation(s)
- Cheng Sun
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, PR China
| | - Lei Chen
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, PR China.
| | - Limei Zhai
- Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Key Laboratory of Non-point Source Pollution Control, Ministry of Agriculture, Beijing 100081, PR China
| | - Hongbin Liu
- Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Key Laboratory of Non-point Source Pollution Control, Ministry of Agriculture, Beijing 100081, PR China
| | - Yue Jiang
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, PR China
| | - Kai Wang
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, PR China
| | - Cong Jiao
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, PR China
| | - Zhenyao Shen
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, PR China
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20
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Kadar A, Peyre L, Wortham H, Doumenq P. A simple GC–MS method for the determination of diphenylamine, tolylfluanid propargite and phosalone in liver fractions. J Chromatogr B Analyt Technol Biomed Life Sci 2019; 1113:69-76. [DOI: 10.1016/j.jchromb.2019.03.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2018] [Revised: 02/18/2019] [Accepted: 03/05/2019] [Indexed: 10/27/2022]
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21
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Zhou Y, Zhang Y, Liang T, Wang L. Shifting of phytoplankton assemblages in a regulated Chinese river basin after streamflow and water quality changes. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 654:948-959. [PMID: 30841412 DOI: 10.1016/j.scitotenv.2018.10.348] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Revised: 10/07/2018] [Accepted: 10/26/2018] [Indexed: 06/09/2023]
Abstract
Phytoplankton is critical to river ecosystems. These organisms are sensitive to streamflow and water quality changes and, therefore, used to determine stability of river ecosystems, especially in regulated rivers. However, exactly how such disturbances alter spatial distribution of phytoplankton remains unclear, particularly during different seasons. A thorough understanding of these mechanisms is required to better analyze impact of environmental factors on regulated rivers. Given this, phytoplankton communities, streamflow, and water quality factors were assessed in areas sampled four times from 2015 to 2016 in upper and middle Huai River Basin. Biodiversity indices, as well as cluster and rank analyses, were used to (1) determine phytoplankton composition and distribution and (2) clarify impacts of key streamflow and water quality factors on such communities. It was found phytoplankton composition deteriorated over time, with phyla number decreasing from six to three. Moreover, proportion of Bacillariophyta increased from 51.83% to 68.13%. Phytoplankton in three regions, upstream region (Shannon-Wiener index 1.39-2.95), midstream region (0.70-4.55), and downstream region (0.22 to 2.97), were spatially clustered. The most impact factors impacting variation in composition and distribution were water quality factors and then hydrological factors. Of these, the most important factors in wet seasons were total nitrogen and maximum runoff, while ammonia nitrogen and low flow discharge were the most important factors during dry seasons. Streamflow and water quality contributed the most in midstream region, which was significantly affected by numbers of high and low flow. Contributions of these factors to downstream region were the strongest during dry seasons, which were significantly affected by numbers of low flow. Collectively, these results reveal significant impact of streamflow and water quality factors on phytoplankton deterioration in upper and middle Huai River Basin. Critically, this study provides scientific and technological support for increased biomonitoring and ecohydrological studies in regulated river basins.
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Affiliation(s)
- Yujian Zhou
- Key Laboratory of Water Cycle and Related Land Surface Processes, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yongyong Zhang
- Key Laboratory of Water Cycle and Related Land Surface Processes, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China.
| | - Tao Liang
- University of Chinese Academy of Sciences, Beijing 100049, China; Key Laboratory of Land Surface and Simulation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
| | - Lingqing Wang
- Key Laboratory of Land Surface and Simulation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
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Lei K, Zhu Y, Chen W, Pan HY, Guo BB, Zhang X, Cao YX, Sweetman AJ, Lin CY. The occurrence of home and personal care products in the Haihe River catchment and estimation of human exposure. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 643:63-72. [PMID: 29936170 DOI: 10.1016/j.scitotenv.2018.06.153] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Revised: 06/12/2018] [Accepted: 06/13/2018] [Indexed: 05/18/2023]
Abstract
A sub-catchment of the Haihe River basin goes through the Beijing-Tianjin region with a population of 26 million, therefore, the use and release of home and personal care product ingredients (HPCPs) to the river catchment could be potentially substantial. Many HPCPs have been shown to be toxic to human and animals. So, it is essential to know the exposure level of HPCPs in the river basin. The average concentrations of five preservatives, three disinfectants and an antioxidant were found to be 398, 352 and 77.7 ng L-1, respectively, in the dry season. The chemical concentrations in the effluents of wastewater treatment plants (WWTPs) and untreated wastewater discharge were respectively ca. 1.3-2.2 and 1.6-7.5 times higher than those in river water. The mass flux of ∑HPCPs has been estimated to be 8.7 g/h at the outfall of the Shahe Reservoir and 181 g/h and 214 g/h at the estuary of the Haihe River and Yongdingxin River to Bohai Bay, respectively. The attenuation of ∑HPCPs was over 79% along the Wenyu River. By using the backward method, the estimated average loadings to WWTPs ranged from 0.51 to 2.0 mg/day/cap for the various individual compounds. They were 1-3 orders of magnitude higher than the estimation from the forward calculation for parabens. This indicates the possible underestimation of chemical usage and human exposure levels by the current published studies or the probably additional industrial release to the target catchment. Such a study provides useful information for the development of chemical management approaches and indicates that further research is needed to improve the estimation of HPCPs usage and emissions to aquatic environment.
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Affiliation(s)
- Kai Lei
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Beijing Normal University, Beijing 100875, People's Republic of China
| | - Ying Zhu
- Lancaster Environment Centre, Lancaster University, Lancaster LA1 4YQ, United Kingdom; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, People's Republic of China.
| | - Wei Chen
- Lancaster Environment Centre, Lancaster University, Lancaster LA1 4YQ, United Kingdom; School of Environmental Studies & State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, People's Republic of China
| | - Hui-Yun Pan
- Institute of Resources and Environment, Henan Polytechnic University, Jiaozuo, Henan 454000, People's Republic of China
| | - Bo-Bo Guo
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Beijing Normal University, Beijing 100875, People's Republic of China
| | - Xuan Zhang
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Beijing Normal University, Beijing 100875, People's Republic of China
| | - Yuan-Xin Cao
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Beijing Normal University, Beijing 100875, People's Republic of China
| | - Andrew J Sweetman
- Lancaster Environment Centre, Lancaster University, Lancaster LA1 4YQ, United Kingdom
| | - Chun-Ye Lin
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Beijing Normal University, Beijing 100875, People's Republic of China.
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23
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Ouyang W, Yang W, Tysklind M, Xu Y, Lin C, Gao X, Hao Z. Using river sediments to analyze the driving force difference for non-point source pollution dynamics between two scales of watersheds. WATER RESEARCH 2018; 139:311-320. [PMID: 29660620 DOI: 10.1016/j.watres.2018.04.020] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Revised: 03/01/2018] [Accepted: 04/07/2018] [Indexed: 06/08/2023]
Abstract
The formation and transportation processes of non-point source (NPS) pollution varied among the studied watersheds in the Northeastern China, so we hypothesized that the driving force behind NPS pollution followed the spatial scale effect. With a watershed outlet sedimentary flux analysis and a distributed NPS pollution loading model, we investigated the temporal dynamics of NPS and the differences in driving forces. Sediment core samples were collected from two adjacent watersheds, the smaller Abujiao watershed and the larger Naoli watershed. The natural climatic conditions, long-term variations in the distribution of land use, soil properties and tillage practices were the same in the two watersheds. The vertical distributions of total nitrogen, total phosphorus, Zn and As at 1-cm intervals in the section showed clear differences between the watersheds. There were higher concentrations of total nitrogen and total phosphorus in the larger watershed, but the heavy metals were more concentrated in the smaller watershed. Lead-210 (210Pb) analyses and the constant rate of supply model provided a dated sedimentary flux, which was correlated with the corresponding yearly loading of NPS total nitrogen and total phosphorus in the two watersheds. The total phosphorus showed a stable relationship in both watersheds with an R2 value that ranged from 0.503 to 0.682. A rose figure comparison also demonstrated that the pollutant flux in the sediment was very different in the two watersheds, which had similar territorial conditions and different hydrological patterns. Redundancy analysis further indicated that expanding paddy areas had a large impact on the sedimentary flux of nitrogen and phosphorus in the smaller watershed, but precipitation had a direct impact on NPS loading in the larger watershed. We concluded that the spatial scale effect affected the NPS pollution via the transport processes in the waterway, which was mainly influenced by branch length and drainage density.
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Affiliation(s)
- Wei Ouyang
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China.
| | - Wanxin Yang
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Mats Tysklind
- Environmental Chemistry, Department of Chemistry, Umeå University, SE-901 87 Umeå, Sweden
| | - Yixue Xu
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Chunye Lin
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Xiang Gao
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Zengchao Hao
- College of Water Resource, Beijing Normal University, Beijing 100875, China
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24
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Zajíček A, Fučík P, Kaplická M, Liška M, Maxová J, Dobiáš J. Pesticide leaching by agricultural drainage in sloping, mid-textured soil conditions - the role of runoff components. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2018; 77:1879-1890. [PMID: 29676745 DOI: 10.2166/wst.2018.068] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Dynamics of pesticides and their metabolites in drainage waters during baseflow periods and rainfall-runoff events (RREs) were studied from 2014 to 2016 at three small, tile-drained agricultural catchments in Bohemian-Moravian Highlands, Czech Republic. Drainage systems in this region are typically built in slopes with considerable proportion of drainage runoff originating outside the drained area itself. Continuous monitoring was performed by automated samplers, and the event hydrograph was separated using 18O and 2H isotopes and drainage water temperature. Results showed that drainage systems represent a significant source for pesticides leaching from agricultural land. Leaching of pesticide metabolites was mainly associated with baseflow and shallow interflow. Water from causal precipitation diluted their concentrations. The prerequisites for the leaching of parental compounds were a rainfall-runoff event occurring shortly after spraying, and the presence of event water in the runoff. When such situations happened consequently, pesticides concentrations in drainage water were high and the pesticide load reached several grams in a few hours. Presented results introduce new insights into the processes of pesticides movement in small, tile-drained catchments and emphasizes the need to incorporate drainage hydrology and flow-triggered sampling into monitoring programmes in larger catchments as well as in environment-conservation policy.
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Affiliation(s)
- Antonín Zajíček
- Research Institute for Soil and Water Conservation, v.v.i., Žabovřeská 250, 5 - Zbraslav, Prague 156 27, Czech Republic E-mail:
| | - Petr Fučík
- Research Institute for Soil and Water Conservation, v.v.i., Žabovřeská 250, 5 - Zbraslav, Prague 156 27, Czech Republic E-mail:
| | - Markéta Kaplická
- Research Institute for Soil and Water Conservation, v.v.i., Žabovřeská 250, 5 - Zbraslav, Prague 156 27, Czech Republic E-mail:
| | - Marek Liška
- Povodí Vltavy, State Enterprise, Holečkova 8, 150 24, Prague 5, Czech Republic
| | - Jana Maxová
- Research Institute for Soil and Water Conservation, v.v.i., Žabovřeská 250, 5 - Zbraslav, Prague 156 27, Czech Republic E-mail:
| | - Jakub Dobiáš
- Povodí Vltavy, State Enterprise, Holečkova 8, 150 24, Prague 5, Czech Republic
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25
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Wang Q, Li C, Chen C, Chen J, Zheng R, Que X. Effectiveness of narrow grass hedges in reducing atrazine runoff under different slope gradient conditions. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:7672-7680. [PMID: 29285701 DOI: 10.1007/s11356-017-1087-7] [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: 11/01/2017] [Accepted: 12/18/2017] [Indexed: 06/07/2023]
Abstract
Atrazine is frequently detected in surface runoff and poses a potential threat to the environment. Grass hedges may minimize runoff loss of atrazine from crop fields. Therefore, the effectiveness of two grass hedges (Melilotus albus and Pennisetum alopecuroides) in controlling atrazine runoff was investigated using simulated rainfall on lands at different slope gradients (15 and 20%) in northern China. Results showed that a storm (40 mm in 1 h), occurring 4 h after atrazine application, caused a loss of 3% of the applied amount. Atrazine loss under 20% slope was significantly greater than that under 15% slope in control plots. Atrazine exports associated with the water fraction accounted for the majority of total loss. Pennisetum hedges were more efficient in controlling atrazine loss with runoff compared to Melilotus hedges. No significant difference in the capacity of grass hedges to reduce atrazine exports was observed between 15 and 20% slopes. These findings suggest grass hedges are effective in minimizing atrazine runoff in northern China, and Pennisetum hedges should be preferentially used on sloping croplands in similar climatic regions.
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Affiliation(s)
- Qinghai Wang
- Beijing Research and Development Center for Grass and Environment, Beijing Academy of Agriculture and Forestry Sciences, 100097, Beijing, People's Republic of China.
| | - Cui Li
- Beijing Research and Development Center for Grass and Environment, Beijing Academy of Agriculture and Forestry Sciences, 100097, Beijing, People's Republic of China
| | - Chao Chen
- Beijing Research and Development Center for Grass and Environment, Beijing Academy of Agriculture and Forestry Sciences, 100097, Beijing, People's Republic of China
| | - Jie Chen
- Beijing Research and Development Center for Grass and Environment, Beijing Academy of Agriculture and Forestry Sciences, 100097, Beijing, People's Republic of China
| | - Ruilun Zheng
- Beijing Research and Development Center for Grass and Environment, Beijing Academy of Agriculture and Forestry Sciences, 100097, Beijing, People's Republic of China
| | - Xiaoe Que
- Institute of Desertification Studies, Chinese Academy of Forestry, 100091, Beijing, People's Republic of China.
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26
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Zhuo D, Liu L, Yu H, Yuan C. A national assessment of the effect of intensive agro-land use practices on nonpoint source pollution using emission scenarios and geo-spatial data. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:1683-1705. [PMID: 29101691 DOI: 10.1007/s11356-017-0118-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Accepted: 09/05/2017] [Indexed: 06/07/2023]
Abstract
China's intensive agriculture has led to a broad range of adverse impacts upon ecosystems and thereby caused environmental quality degradation. One of the fundamental problems that face land managers when dealing with agricultural nonpoint source (NPS) pollution is to quantitatively assess the NPS pollution loads from different sources at a national scale. In this study, export scenarios and geo-spatial data were used to calculate the agricultural NPS pollution loads of nutrient, pesticide, plastic film residue, and crop straw burning in China. The results provided the comprehensive and baseline knowledge of agricultural NPS pollution from China's arable farming system in 2014. First, the nitrogen (N) and phosphorus (P) emission loads to water environment were estimated to be 1.44 Tg N and 0.06 Tg P, respectively. East and south China showed the highest load intensities of nutrient release to aquatic system. Second, the amount of pesticide loss to water of seven pesticides that are widely used in China was estimated to be 30.04 tons (active ingredient (ai)). Acetochlor was the major source of pesticide loss to water, contributing 77.65% to the total loss. The environmental impacts of pesticide usage in east and south China were higher than other parts. Third, 19.75% of the plastic film application resided in arable soils. It contributed a lot to soil phthalate ester (PAE) contamination. Fourth, 14.11% of straw produce were burnt in situ, most occurring in May to July (post-winter wheat harvest) in North China Plain and October to November (post-rice harvest days) in southeast China. All the above agricultural NPS pollution loadings were unevenly distributed across China. The spatial correlations between pollution loads at land unit scale were also estimated. Rising labor cost in rural China might be a possible explanation for the general positive correlations of the NPS pollution loads. It also indicated a co-occurred higher NPS pollution loads and a higher human exposure risk in eastern regions. Results from this research might provide full-scale information on the status and spatial variation of various agricultural NPS pollution loads for policy makers to control the NPS pollution in China.
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Affiliation(s)
- Dong Zhuo
- Department of Land Resources Management, College of Resource and Environmental Science, China Agricultural University, No.2 Yuanmingyuan West Road, Haidian District, Beijing, 100193, People's Republic of China
| | - Liming Liu
- Department of Land Resources Management, College of Resource and Environmental Science, China Agricultural University, No.2 Yuanmingyuan West Road, Haidian District, Beijing, 100193, People's Republic of China.
| | - Huirong Yu
- Department of Land Resources Management, College of Resource and Environmental Science, China Agricultural University, No.2 Yuanmingyuan West Road, Haidian District, Beijing, 100193, People's Republic of China
| | - Chengcheng Yuan
- Department of Land Resources Management, College of Resource and Environmental Science, China Agricultural University, No.2 Yuanmingyuan West Road, Haidian District, Beijing, 100193, People's Republic of China
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27
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Wu L, Chang H, Ma X. A modified method for pesticide transport and fate in subsurface environment of a winter wheat field of Yangling, China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 609:385-395. [PMID: 28753514 DOI: 10.1016/j.scitotenv.2017.07.116] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Revised: 07/05/2017] [Accepted: 07/12/2017] [Indexed: 06/07/2023]
Abstract
The Guanzhong region is one of the water resources shortage areas and also an important food producing area in Chinese Loess Plateau. The unreasonable application of irrigation and pesticide not only reduces the utilization rate of pesticides, but also is a potential threat to aquatic environments. In order to explore the reasonable application pattern of irrigation and pesticide, a modified method considering crop water requirement and pesticide transport was established to simulate transport and fate of Triadimefon in subsurface environment of a winter wheat field in Yangling, China. Results indicate that: (1) the modified method introduces the concepts of crop water requirement and irrigation schedule, which can estimate irrigation amount more accurately and achieve the goal of water saving and agricultural diffuse pollution control more efficiently. The method shows good potential applications and implications in predicting pesticide exposure levels of different crops and in reducing pesticide pollution. (2) The changing trends of soil pesticide levels under different pesticide applications are various. The Triadimefon concentration level in surface soil layer (0.005m) was directly affected by pesticide application and irrigation. The Triadimefon peak below the soil depth of 0.035m has prominently delayed effects and it is mainly affected by irrigations. The concentration of pesticides decays rapidly with the increase of soil depth, and it can be ignored below the depth of 0.5m. (3) The soil pesticide levels under different pesticide and irrigation modes show considerable differences, the irrigation is still the most significant factor affecting the level of soil pesticide residues under different time intervals between pesticide application and irrigation. The irrigation scheme of one-day interval and five-divided irrigation can effectively reduce deep soil pollution without affecting the normal growth of crops. Results may provide theoretical basis and guide farmers to choose appropriate irrigation and pesticide application patterns.
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Affiliation(s)
- Lei Wu
- Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas, Ministry of Education, Northwest A&F University, Yangling, Shaanxi 712100, PR China; College of Water Resources and Architectural Engineering, Northwest A&F University, Yangling, Shaanxi 712100, PR China; State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A&F University, Yangling, Shaanxi 712100, PR China.
| | - Huanyu Chang
- Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas, Ministry of Education, Northwest A&F University, Yangling, Shaanxi 712100, PR China; College of Water Resources and Architectural Engineering, Northwest A&F University, Yangling, Shaanxi 712100, PR China
| | - Xiaoyi Ma
- Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas, Ministry of Education, Northwest A&F University, Yangling, Shaanxi 712100, PR China; College of Water Resources and Architectural Engineering, Northwest A&F University, Yangling, Shaanxi 712100, PR China
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28
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Kadar A, Peyre L, de Souza G, Wortham H, Doumenq P, Rahmani R. An accurate and robust LC-MS/MS method for the quantification of chlorfenvinphos, ethion and linuron in liver samples. CHEMOSPHERE 2017; 184:20-26. [PMID: 28577486 DOI: 10.1016/j.chemosphere.2017.05.157] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Revised: 05/16/2017] [Accepted: 05/28/2017] [Indexed: 06/07/2023]
Abstract
A method for the determination of chlorfenvinphos, ethion and linuron in liver samples by LC-MS/MS is described. Sample treatment was performed by using Sola™ polymeric reverse phase SPE cartridges after protein precipitation. Gradient elution using 10 mM ammonium formate in methanol (A) and 10 mM ammonium formate in water (B) was used for chromatographic separation of analytes on a Hypersil™ end-capped Gold PFP reverse phase column (100 mm × 2.1 mm, 3 μm). All analytes were quantified without interference, in positive ionization mode using multiple reaction monitoring (MRM) with chlorfenvinphos-d10 as internal standard. The whole procedure was validated according to the FDA guidelines for bioanalytical methods. The calibration curves for chlorfenvinphos, linuron and ethion compounds were linear over the concentration range of 0.005-2 μM (i.e. 0.0018-0.720 μg/mL, 0.0019-0.770 μg/mL and 0.0012-0.500 μg/mL respectively) with coefficients of determination higher than 0.998. A Lower limit of quantification of 0.005 μM was achieved for all analytes, i.e. 5.76, 6.08 and 3.84 μg/kg of liver for chlorfenvinphos, ethion and linuron respectively. Compounds extraction recovery rates ranged from 92.9 to 99.5% with a RSD of 2.3%. Intra- and inter-day accuracies were within 90.9 and 100%, and imprecision varied from 0.8 to 8.2%. Stability tests proved all analytes were stable in liver extracts during instrumental analysis (+12 °C in autosampler tray for 72 h) at the end of three successive freeze-thaw cycles and at -20 °C for up to 9 months. This accurate and robust analytical method is therefore suitable for contamination or metabolism studies.
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Affiliation(s)
- Ali Kadar
- Aix Marseille Univ, CNRS, LCE, Marseille, France; INRA, UMR 1331 TOXALIM, Laboratoire de Toxicologie Cellulaire et Moléculaire des Xénobiotiques, BP 167, 400 Route des Chappes, 06903, Sophia Antipolis Cedex, France.
| | - Ludovic Peyre
- INRA, UMR 1331 TOXALIM, Laboratoire de Toxicologie Cellulaire et Moléculaire des Xénobiotiques, BP 167, 400 Route des Chappes, 06903, Sophia Antipolis Cedex, France
| | - Georges de Souza
- INRA, UMR 1331 TOXALIM, Laboratoire de Toxicologie Cellulaire et Moléculaire des Xénobiotiques, BP 167, 400 Route des Chappes, 06903, Sophia Antipolis Cedex, France
| | | | | | - Roger Rahmani
- INRA, UMR 1331 TOXALIM, Laboratoire de Toxicologie Cellulaire et Moléculaire des Xénobiotiques, BP 167, 400 Route des Chappes, 06903, Sophia Antipolis Cedex, France
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29
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Impact of Spent Mushroom Substrates on the Fate of Pesticides in Soil, and Their Use for Preventing and/or Controlling Soil and Water Contamination: A Review. TOXICS 2016; 4:toxics4030017. [PMID: 29051422 PMCID: PMC5606655 DOI: 10.3390/toxics4030017] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Revised: 08/02/2016] [Accepted: 08/05/2016] [Indexed: 02/06/2023]
Abstract
Intensive crop production involves a high consumption of pesticides. This is a cause of major environmental concern because the presence of pesticides in water is becoming increasingly common. Physicochemical methods based on soil modification with organic residues have been developed to enhance the immobilization and/or degradation of pesticides in agricultural soils, which may control both the diffuse and the point pollution of soils and waters. This review summarizes the influence of spent mushroom substrate (SMS) on the environmental fate of pesticides when both are simultaneously applied in agriculture. The processes of adsorption, leaching and dissipation of these compounds in SMS-amended soils were evaluated at laboratory and field scale. Relationships were established between the experimental parameters obtained and the properties of the soils, the SMS, and the pesticides in order to determine the effect that the application of SMS in agricultural soils has on the environmental impact of pesticides. Accordingly, this review highlights the use of SMS as a strategy for the prevention and/or control of soil and water contamination by pesticides to strike a balance between agricultural development and the use of these compounds.
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30
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Ouyang W, Zhao X, Tysklind M, Hao F. Typical agricultural diffuse herbicide sorption with agricultural waste-derived biochars amended soil of high organic matter content. WATER RESEARCH 2016; 92:156-63. [PMID: 26852289 DOI: 10.1016/j.watres.2016.01.055] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Revised: 12/19/2015] [Accepted: 01/25/2016] [Indexed: 05/26/2023]
Abstract
Biochar application has been identified as the effective soil amendment and the materials to control the diffuse herbicide pollution. The atrazine was selected as the typical diffuse herbicide pollutant as the dominant proportion in applications. The biochar treated from four types of crops biomass were added to soil with high organic matter content. The basic sorption characteristics of biocahrs from corn cob (CC), corn stalk (CS), soybean straw (SS), rice straw (RS) and corn stalk paralyzed with 5% of ammonium dihydrogen phosphate (ACS) were analyzed, along with the comparison of the sorption difference of the raw soil and soil amended with biochars at four levels of ratio (0.5%, 1.0%, 3.0% and 5.0%). It was found that the linear distribution isotherm of raw soil was much effective due to the high organic matter background concentration. The addition of five types of biochars under two kinds of initial atrazine concentration (1 mg/L and 20 mg/L) demonstrated the sorption variances. Results showed the soil amended with RS and CS biochar had the biggest removal rate in four regular biochars and the removal rate of the ACS was the biggest. The sorption coefficient and the normalized sorption coefficient from Freundlich modeling presented the isothermal sorption characteristics of atrazine with soil of high organic matter content. The normalized sorption coefficient increased with the equilibrium concentration decreased in the biochar amended soil, which indicated the sorption performance will be better due to the low atrazine concentration in practice. Results showed that biochar amendment is the effective way to prevent leakage of diffuse herbicide loss.
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Affiliation(s)
- Wei Ouyang
- School of Environment, State Key Laboratory of Water Environment Simulation, Beijing Normal University, Beijing 100875, China.
| | - Xuchen Zhao
- School of Environment, State Key Laboratory of Water Environment Simulation, Beijing Normal University, Beijing 100875, China
| | - Mats Tysklind
- Department of Chemistry, Umeå University, 901 87 Umeå, Sweden
| | - Fanghua Hao
- School of Environment, State Key Laboratory of Water Environment Simulation, Beijing Normal University, Beijing 100875, China
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