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Zhang B, Zhang QQ, Cai YY, Yan XT, Zhai YQ, Guo Z, Ying GG. Environmental emissions and pollution characteristics of mosquitocides for the control of dengue fever in a typical urban area. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 867:161513. [PMID: 36634776 DOI: 10.1016/j.scitotenv.2023.161513] [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: 10/31/2022] [Revised: 12/25/2022] [Accepted: 01/06/2023] [Indexed: 06/17/2023]
Abstract
Mosquitocides are frequently used to control the spread of dengue fever in tropical and sub-tropic urban regions worldwide, resulting in their discharge into the environment via rainfall runoff, causing adverse effects on ecological health. This study quantitatively evaluated mosquitocide emissions and environmental pollution in a typical urban district in China affected by the dengue fever epidemic, using a method combining market surveys, monitoring campaigns and SWMM (storm water management model) modelling tools. During the assessment period, the total mosquitocide usage in the urban district reached 6334 kg, with an estimated load of 56.55 g entering the receiving environment via rainfall runoff, 91.04 % of which occurred in the rainy season. Monitoring results indicated that the initial 0.5-1 h was the main period of mosquitocide wash off into the receiving water. Environmental mosquitocide pollution levels were found to be affected by the mosquitocide type and the time interval between mosquitocide application and precipitation events. The measured environmental concentrations of mosquitocides in this study were generally higher than those areas unaffected by the dengue fever epidemic. The modelled mosquitocide concentrations were in accordance with monitoring results. The finding of this study are important for assessing the environmental impact of dengue fever control activities, while also providing valuable baseline data for the effective environmental management of mosquitocides.
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Affiliation(s)
- Bing Zhang
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety, MOE Key Laboratory of Environmental Theoretical Chemistry, South China Normal University, Guangzhou 510006, China; Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, China; State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
| | - Qian-Qian Zhang
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety, MOE Key Laboratory of Environmental Theoretical Chemistry, South China Normal University, Guangzhou 510006, China.
| | - Ya-Ya Cai
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety, MOE Key Laboratory of Environmental Theoretical Chemistry, South China Normal University, Guangzhou 510006, China
| | - Xiao-Ting Yan
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety, MOE Key Laboratory of Environmental Theoretical Chemistry, South China Normal University, Guangzhou 510006, China
| | - Yun-Qiu Zhai
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety, MOE Key Laboratory of Environmental Theoretical Chemistry, South China Normal University, Guangzhou 510006, China
| | - Zhao Guo
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety, MOE Key Laboratory of Environmental Theoretical Chemistry, South China Normal University, Guangzhou 510006, China
| | - Guang-Guo Ying
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety, MOE Key Laboratory of Environmental Theoretical Chemistry, South China Normal University, Guangzhou 510006, China
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2
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Weis L, de Cassia de Souza Schneider R, Hoeltz M, Rieger A, Tostes S, Lobo EA. Potential for bifenthrin removal using microalgae from a natural source. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2020; 82:1131-1141. [PMID: 33055403 DOI: 10.2166/wst.2020.160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The accumulation of environmental pesticides can cause problems in aquatic ecosystems and adverse effects in humans. These compounds can be found in water due to runoff from agricultural, industrial and domestic applications. In Southern Brazil, tobacco cultivation is one of the most important economic agricultural activities. The bifenthrin pesticide, classified as having moderate toxicity (class II), is commonly used as an insecticide in this culture. In this context, the present research aimed to study the performance of microalgae-induced bioremediation processes. Microalgae were isolated from a natural water source in the city of Santa Cruz do Sul, RS, Brazil, which is an artificial reservoir used for public water supply. For this purpose, biodegradation, biosorption, influence of pH, percentage of inoculum and photoperiod were evaluated in batch experiments for 20 cultivation days. After the phycoremediation process, the bifenthrin pesticide (m/z = 181) was quantified by gas chromatography with mass spectrometry (GC-MS). The results indicated that microalgae isolated from the water of the lake were able to contribute to the removal of approximately 99% of bifenthrin through biodegradation and biosorption processes. Photodegradation was identified (>77%) and the best condition for the phycoremediation was 20% inoculum with a photoperiod of 18:6 h.
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Affiliation(s)
- Leticia Weis
- Environmental Technology Post-Graduation Program, University of Santa Cruz do Sul (UNISC), Santa Cruz do Sul, RS, Brazil
| | - Rosana de Cassia de Souza Schneider
- Environmental Technology Post-Graduation Program, University of Santa Cruz do Sul (UNISC), Santa Cruz do Sul, RS, Brazil; Center of Excellence in Oilchemistry and Biotechnology, University of Santa Cruz do Sul, UNISC, Santa Cruz do Sul, Rio Grande do Sul, Brazil E-mail:
| | - Michele Hoeltz
- Environmental Technology Post-Graduation Program, University of Santa Cruz do Sul (UNISC), Santa Cruz do Sul, RS, Brazil; Center of Excellence in Oilchemistry and Biotechnology, University of Santa Cruz do Sul, UNISC, Santa Cruz do Sul, Rio Grande do Sul, Brazil E-mail:
| | - Alexandre Rieger
- Center of Excellence in Oilchemistry and Biotechnology, University of Santa Cruz do Sul, UNISC, Santa Cruz do Sul, Rio Grande do Sul, Brazil E-mail:
| | - Schirley Tostes
- Center of Excellence in Oilchemistry and Biotechnology, University of Santa Cruz do Sul, UNISC, Santa Cruz do Sul, Rio Grande do Sul, Brazil E-mail:
| | - Eduardo A Lobo
- Environmental Technology Post-Graduation Program, University of Santa Cruz do Sul (UNISC), Santa Cruz do Sul, RS, Brazil
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3
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Xue J, Zhu X, Liu Z, Hua R, Wu X. Using silicone rubber and polyvinylchloride as equilibrium passive samplers for rapid and sensitive monitoring of pyrethroid insecticides in aquatic environments. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 728:138797. [PMID: 32339841 DOI: 10.1016/j.scitotenv.2020.138797] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 04/16/2020] [Accepted: 04/17/2020] [Indexed: 06/11/2023]
Abstract
Passive sampling to regularly identify the occurrence of pyrethroid insecticides in urban streams is a crucial work of risk management with respect to intrinsic toxicity of pyrethroids to aquatic organisms. Polymeric films, based on an equilibrium sampling principle, have found increasing use as passive samplers for hydrophobic contaminants. Herein, we investigated two thin-film samplers, namely silicone rubber (SR) and polyvinylchloride (PVC), compatible with a suite of 8 pyrethroids, for measuring freely dissolved concentrations (Cfree) in water. The characteristics of SR and PVC samplers were estimated in terms of equilibrium partitioning coefficients (Kf) with log units of 3.90-4.67 and sampling rates (Rs) of 0.011-0.016 L/h. The parameters were correlated positively with octanol-water partition coefficients of the compounds, whereas independent on water solubility. A strong agreement between Cfree obtained from the two samplers was observed in a range of 0.1-10 μg/L for pyrethroids under laboratory simulated conditions. Both of SR and PVC were confirmed as equilibrium samplers with faster sampling rates of pyrethroids that equilibrated on films within only one week, and higher accumulation at factors of 5.3-12.5 and 1.5-2.4 compared to a performance reference compound (PRC)-preload sampler. Additionally, the comparable results of the two passive sampling methods in multiple field applications indicated that the direct deployment of the two samplers without PRCs calibration can provide reliable assessment of trace concentrations. This study demonstrated the routine utilization of SR and PVC as promising tools for rapid and sensitive in-situ monitoring of pyrethroids, and indicators for the bioavailability against total chemical concentrations in variable aquatic environments.
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Affiliation(s)
- Jiaying Xue
- College of Resources and Environment, Anhui Agricultural University, Key Laboratory of Agri-food Safety of Anhui Province, Hefei 230036, PR China.
| | - Xianbin Zhu
- College of Resources and Environment, Anhui Agricultural University, Key Laboratory of Agri-food Safety of Anhui Province, Hefei 230036, PR China
| | - Zikun Liu
- College of Resources and Environment, Anhui Agricultural University, Key Laboratory of Agri-food Safety of Anhui Province, Hefei 230036, PR China
| | - Rimao Hua
- College of Resources and Environment, Anhui Agricultural University, Key Laboratory of Agri-food Safety of Anhui Province, Hefei 230036, PR China
| | - Xiangwei Wu
- College of Resources and Environment, Anhui Agricultural University, Key Laboratory of Agri-food Safety of Anhui Province, Hefei 230036, PR China
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4
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Factors controlling the fate of pyrethroids residues during post-harvest processing of raw agricultural crops: An overview. Food Chem 2019; 295:58-63. [PMID: 31174799 DOI: 10.1016/j.foodchem.2019.05.109] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Revised: 05/15/2019] [Accepted: 05/15/2019] [Indexed: 11/20/2022]
Abstract
Control of residual levels of synthetic pyrethroids in fresh fruits and vegetables as well as in foodstuff made of fresh agricultural produces is of utmost importance. Apart from the need to more control on application of pesticides by farmers, simple and effective postharvest practices by consumers and/or manufacturers usually applied to produces before consumption may enhance food safety from potentially harmful pesticide residues. The present review discusses the underline factors that control the effectiveness of crops postharvest treatments and the possible mechanisms of loss of pesticides during food processing. It is shown that the effectiveness of postharvest processes is controlled by various factors and that understanding such factors is essential for more control of residual pesticides. Though postharvest processes may lead to substantial reduction of residual pesticides, metabolites of broken pesticides are of great concern.
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Xu C, Wang J, Richards J, Xu T, Liu W, Gan J. Development of film-based passive samplers for in situ monitoring of trace levels of pyrethroids in sediment. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 242:1684-1692. [PMID: 30072218 DOI: 10.1016/j.envpol.2018.07.105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Revised: 07/19/2018] [Accepted: 07/22/2018] [Indexed: 06/08/2023]
Abstract
Residues of pyrethroid insecticides tend to accumulate in bed sediments due to their strong hydrophobicity. Rather than the total or bulk sediment concentration, it is the freely dissolved concentration (Cfree) that drives toxicity to benthic invertebrates. In this study we developed thin film-based samplers for in situ ambient monitoring of pyrethroids at trace levels in sediment. Out of five common polymer materials, polyethylene (PE) and silicone rubber (SR), were identified to offer superior enrichment for pyrethroids from sediment. To circumvent the slow equilibrium process, 13C-permethrin and bifenthrin-d5 were preloaded onto the films as performance reference compounds (PRCs). The PRC-preloaded film samplers were deployed at five sites in Southern California under field conditions for 7 d and retrieved for analysis. The sediment porewater Cfree of eight pyrethroids derived from PRC-PE films ranged from 173 to 903 ng/L, accounting for 18.2-36.1% of the corresponding total porewater concentrations. The PRC-SR film samplers yielded Cfree values closely mimicking those from the PRC-PE samplers, cross-validating the two sampling devices. Additionally, a significant positive association was found between the observed mortality from toxicity tests using Hyalella azteca and the Cfree of bifenthrin (r = 0.628, p = 0.02). A significant linear correlation (R2 = 0.99) between Cfree derived from in situ monitoring and that of ex situ measurement under equilibrium conditions was also observed. Results from this study demonstrated that the film-based samplers may be used for in situ ambient monitoring to detect biologically relevant contamination of pyrethroids in bed sediments, which may contribute to improved risk assessment for this class of widely used insecticides.
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Affiliation(s)
- Chenye Xu
- Department of Environmental Sciences, University of California, Riverside, CA, 92521, USA; MOE Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China; School of Environmental Science and Engineering, Donghua University, Shanghai, 201620, China
| | - Jie Wang
- Department of Environmental Sciences, University of California, Riverside, CA, 92521, USA.
| | - Jaben Richards
- Department of Environmental Sciences, University of California, Riverside, CA, 92521, USA
| | - Tianbo Xu
- Pyrethroid Working Group, 2 TW Alexander Dr. RTP, NC, 27709, USA
| | - Weiping Liu
- MOE Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Jay Gan
- Department of Environmental Sciences, University of California, Riverside, CA, 92521, USA
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6
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Dallegrave A, Pizzolato TM, Barreto F, Bica VC, Eljarrat E, Barceló D. Residue of insecticides in foodstuff and dietary exposure assessment of Brazilian citizens. Food Chem Toxicol 2018; 115:329-335. [DOI: 10.1016/j.fct.2018.03.028] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Revised: 03/07/2018] [Accepted: 03/20/2018] [Indexed: 01/18/2023]
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7
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Bragança I, Lemos PC, Barros P, Delerue-Matos C, Domingues VF. Phytotoxicity of pyrethroid pesticides and its metabolite towards Cucumis sativus. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 619-620:685-691. [PMID: 29156286 DOI: 10.1016/j.scitotenv.2017.11.164] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Revised: 11/14/2017] [Accepted: 11/15/2017] [Indexed: 06/07/2023]
Abstract
Pyrethroid pesticides residues have been frequently detected in soils and have been recognized to contribute to soil toxicity. The phytotoxic impact of pesticides was evaluated in Cucumis sativus (C. sativus) seeds. Percentage of seed germination, root elongation, shoot length and leaf length were considered as endpoints to assess the possible acute phytotoxicity of soil by the exposure to pyrethroid pesticides (cypermethrin, deltamethrin and cyhalothrin) and its metabolite phenoxybenzoic acid (3-PBA), in a concentration range between 50 and 500μgkg-1. For germination percentage, it was only observed a negative impact when seeds were exposed to the metabolite. Cypermethrin showed impact in the three studied endpoints of seed development, while deltamethrin merely affected the root length. Concerning pigments content, it can be said that chlorophylls and total carotenoids median values increased for cypermethrin and deltamethrin. This increase was more pronounced to deltamethrin in joint effect with the organic solvent dimethyl sulphoxide (DMSO). When exposed to cyhalothrin and 3-PBA, no statistically significant differences were observed for C. sativus seeds to all the assessed endpoints of seed development and the investigated pigments content. This research brings new data concerning the relative sensitivity of C. sativus seeds to pyrethroids pesticides commonly found in agricultural facilities, as well as critical understanding and development of using C. sativus for phytotoxicity assessments efforts for pesticide exposures.
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Affiliation(s)
- I Bragança
- REQUIMTE/LAQV-GRAQ, Instituto Superior de Engenharia do Porto, Polytechnic Porto, Rua Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal
| | - Paulo C Lemos
- REQUIMTE/LAQV, Chemistry Dep., FCT/Universidade NOVA de Lisboa, Campus de Caparica, 2829-516 Caparica, Portugal
| | - Piedade Barros
- Health and Environmental Research Center (CISA), School of Allied Health Sciences of Porto, Polytechnic Porto, Rua Valente Perfeito, 322, 4400-330 Vila Nova de Gaia, Portugal
| | - Cristina Delerue-Matos
- REQUIMTE/LAQV-GRAQ, Instituto Superior de Engenharia do Porto, Polytechnic Porto, Rua Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal
| | - Valentina F Domingues
- REQUIMTE/LAQV-GRAQ, Instituto Superior de Engenharia do Porto, Polytechnic Porto, Rua Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal.
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8
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Deanovic LA, Stillway M, Hammock BG, Fong S, Werner I. Tracking pyrethroid toxicity in surface water samples: Exposure dynamics and toxicity identification tools for laboratory tests with Hyalella azteca (Amphipoda). ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2018; 37:462-472. [PMID: 28888045 DOI: 10.1002/etc.3979] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2017] [Revised: 05/18/2017] [Accepted: 09/02/2017] [Indexed: 06/07/2023]
Abstract
Pyrethroid insecticides are commonly used in pest control and are present at toxic concentrations in surface waters of agricultural and urban areas worldwide. Monitoring is challenging as a result of their high hydrophobicity and low toxicity thresholds, which often fall below the analytical methods detection limits (MDLs). Standard daphnid bioassays used in surface water monitoring are not sensitive enough to protect more susceptible invertebrate species such as the amphipod Hyalella azteca and chemical loss during toxicity testing is of concern. In the present study, we quantified toxicity loss during storage and testing, using both natural and synthetic water, and presented a tool to enhance toxic signal strength for improved sensitivity of H. azteca toxicity tests. The average half-life during storage in low-density polyethylene (LDPE) cubitainers (Fisher Scientific) at 4 °C of 5 pyrethroids (permethrin, bifenthrin, lambda-cyhalothrin, cyfluthrin, and esfenvalerate) and one organophosphate (chlorpyrifos; used as reference) was 1.4 d, and piperonyl butoxide (PBO) proved an effective tool to potentiate toxicity. We conclude that toxicity tests on ambient water samples containing these hydrophobic insecticides are likely to underestimate toxicity present in the field, and mimic short pulse rather than continuous exposures. Where these chemicals are of concern, the addition of PBO during testing can yield valuable information on their presence or absence. Environ Toxicol Chem 2018;37:462-472. © 2017 SETAC.
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Affiliation(s)
- Linda A Deanovic
- Center for Aquatic Biology and Aquaculture, University of California, Davis, USA
| | - Marie Stillway
- School of Veterinary Medicine, Department of Anatomy, Physiology, and Cell Biology, University of California, Davis, USA
| | - Bruce G Hammock
- School of Veterinary Medicine, Department of Anatomy, Physiology, and Cell Biology, University of California, Davis, USA
| | - Stephanie Fong
- Central Valley Regional Water Quality Control Board, Rancho Cordova, California, USA
| | - Inge Werner
- Swiss Centre for Applied Ecotoxicology, Dübendorf, Switzerland
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9
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Xue J, Liao C, Wang J, Cryder Z, Xu T, Liu F, Gan J. Development of passive samplers for in situ measurement of pyrethroid insecticides in surface water. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2017; 224:516-523. [PMID: 28259582 DOI: 10.1016/j.envpol.2017.02.034] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2016] [Revised: 02/15/2017] [Accepted: 02/16/2017] [Indexed: 05/15/2023]
Abstract
Pyrethroid insecticides are widely used in urban environments, and their occurrence has been recently associated with aquatic toxicity in urban surface streams. Synthetic pyrethroids are strongly hydrophobic compounds, highlighting the importance of the freely dissolved concentration (Cfree), rather than the total chemical concentration, for better prediction of potential effects in aquatic ecosystems. The goal of this study was to develop a simple, robust and field-applicable passive sampling methodology that may be used for in situ monitoring of trace levels of pyrethroids in surface water. Among a range of polymer films, polyethylene film (PE) was found to be the most efficient at absorbing pyrethroids from water. To circumvent the long equilibrium time, 13C-permethrin and bifenthrin-d5 were preloaded on the PE sampler as performance reference compounds (PRC). Desorption of isotope-labeled PRCs was found to be isotropic to the absorption of target analytes. The optimized method was first tested in large circulating tanks simulating various environmental conditions. The derived Cfree values were consistently smaller than the total aqueous concentration in salt water or water containing humic acids. The PE samplers were further deployed at multiple field sites for 7 d in Southern California and analysis demonstrated good monitoring reproducibility and sensitivity under ambient environmental conditions. The developed passive sampler approach is ideal for application for in situ sampling under field conditions, and the use of PRCs allows sampling with short and flexible time intervals.
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Affiliation(s)
- Jiaying Xue
- Department of Environmental Science, University of California, Riverside, CA 92521, USA; College of Resource and Environment, Anhui Agricultural University, Key Laboratory of Agri-food Safety of Anhui Province, Hefei 230036, China; Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100192, China
| | - Chunyang Liao
- Department of Environmental Science, University of California, Riverside, CA 92521, USA
| | - Jie Wang
- Department of Environmental Science, University of California, Riverside, CA 92521, USA
| | - Zachary Cryder
- Department of Environmental Science, University of California, Riverside, CA 92521, USA
| | - Tianbo Xu
- Bayer CropScience, 2 T. W. Alexander Drive, Research Triangle Park, NC 27709, USA
| | - Fengmao Liu
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100192, China
| | - Jay Gan
- Department of Environmental Science, University of California, Riverside, CA 92521, USA.
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10
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Tariq SR, Ahmed D, Farooq A, Rasheed S, Mansoor M. Photodegradation of bifenthrin and deltamethrin-effect of copper amendment and solvent system. ENVIRONMENTAL MONITORING AND ASSESSMENT 2017; 189:71. [PMID: 28116604 DOI: 10.1007/s10661-017-5789-6] [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: 05/07/2016] [Accepted: 01/16/2017] [Indexed: 06/06/2023]
Abstract
The photodegradation of bifenthrin and deltamethrin was studied in the presence of Cu salts and two different solvents, methanol and acetonitrile. Results of the study showed that in the absence of any metal salt, the two pesticides degraded more rapidly in acetonitrile than in methanol. After 24 h of UV irradiation, 70% of deltamethrin had degraded in acetonitrile, while only 41% bifenthrin degraded in this solvent. In methanol, bifenthrin degraded at a much enhanced rate than in acetonitrile while the rate of degradation of deltamethrin was comparable to that in acetonitrile. The photodegradation was further enhanced by the addition of copper to the solution of bifenthrin and deltamethrin in acetonitrile. The rate of photodegradation of deltamethrin increased from 2.4 × 10-2 to 3.5 × 10-2 h-1 in acetonitrile and 2.5 × 10-2 to 3.4 × 10-2 h-1 in methanol after the addition of copper. Similarly, the rate of photodegradation of bifenthrin was increased from 5.0 × 10-3 to 9.0 × 10-3 h-1 in acetonitrile and 7.0 × 10-3to 9.05 × 10-3 h-1 in methanol with the addition of copper. Thus, copper has the potential to enhance the photodegradation of bifenthrin and deltamethrin in both the solvents.
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Affiliation(s)
- Saadia Rashid Tariq
- Department of Chemistry, Lahore College for Women University, Lahore, Pakistan.
| | - Dildar Ahmed
- Department of Chemistry, Forman Christian College, A chartered University, Lahore, Pakistan
| | - Amna Farooq
- Department of Chemistry, Lahore College for Women University, Lahore, Pakistan
| | - Sonia Rasheed
- Department of Chemistry, Lahore College for Women University, Lahore, Pakistan
| | - Mubarkah Mansoor
- Department of Chemistry, Lahore College for Women University, Lahore, Pakistan
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Dallegrave A, Pizzolato TM, Barreto F, Eljarrat E, Barceló D. Methodology for trace analysis of 17 pyrethroids and chlorpyrifos in foodstuff by gas chromatography–tandem mass spectrometry. Anal Bioanal Chem 2016; 408:7689-7697. [DOI: 10.1007/s00216-016-9865-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Revised: 07/19/2016] [Accepted: 08/06/2016] [Indexed: 12/19/2022]
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12
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Chen L, Xu P, Diao J, Di S, Li R, Zhou Z. Distribution, Metabolism and Toxic Effects of Beta-Cypermethrin in Lizards (Eremias argus) Following Oral Administration. JOURNAL OF HAZARDOUS MATERIALS 2016; 306:87-94. [PMID: 26698673 DOI: 10.1016/j.jhazmat.2015.11.053] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Revised: 11/04/2015] [Accepted: 11/27/2015] [Indexed: 06/05/2023]
Abstract
Beta-cypermethrin (BCYP), a synthetic pyrethriod (PYR) pesticide which is a mixture of the alpha- and theta- cypermethrin, have been reported various toxicological profiles to non-target organisms. But little is known about assimilation, accumulation and toxic effects of BCYP in reptiles. The present study firstly elucidated absorption, tissue distribution, excretion of BCYP in Eremias argus . Treated group were administered orally with BCYP 20mg/kg body weight (bw) dissolved in corn oil. Neurotoxicity was observed at 24h after gavage, and the poisoning symptom ameliorated at 72h. The changes of BCYP concentration depended on degradation time and tissues. Lizards had a strong capacity to eliminate BCYP with different tissue distribution. The tissues concentration of BCYP from high to low were intestine, stomach, heart, kidney, blood, lung, liver and brain. Bimodal phenomena were observed in lung, liver and kidney. These results may be due to the activities of enzymes, circadian rhythm, and enterohepatic circulation in lizards. Based on the results of organ coefficient and histopathology analysis in liver, the liver was confirmed as the main target organ.
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Affiliation(s)
- Li Chen
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Yuanmingyuan West Road 2, Beijing 100193, China; Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2, Beijing 100193, China
| | - Peng Xu
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Shuangqing RD 18, Beijing 100085, China
| | - Jinling Diao
- Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2, Beijing 100193, China
| | - Shanshan Di
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Yuanmingyuan West Road 2, Beijing 100193, China; Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2, Beijing 100193, China
| | - Ruiting Li
- Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2, Beijing 100193, China
| | - Zhiqiang Zhou
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Yuanmingyuan West Road 2, Beijing 100193, China; Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2, Beijing 100193, China.
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13
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Liu J, Huang W, Han H, She C, Zhong G. Characterization of cell-free extracts from fenpropathrin-degrading strain Bacillus cereus ZH-3 and its potential for bioremediation of pyrethroid-contaminated soils. THE SCIENCE OF THE TOTAL ENVIRONMENT 2015; 523:50-58. [PMID: 25862990 DOI: 10.1016/j.scitotenv.2015.03.124] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2015] [Revised: 03/27/2015] [Accepted: 03/28/2015] [Indexed: 06/04/2023]
Abstract
Synthetic pyrethroid fenpropathrin has received increasing attention because of its environmental contamination and toxic effects on non-target organisms including human beings. Here we report the degradation characteristics of cell-free extracts from fenpropathrin-degrading strain Bacillus cereus ZH-3 and its potential for pyrethroid bioremediation in soils. 50mg·L(-1) of fenpropathrin was decreased to 20.6mg·L(-1) by the enzymatic extracts (869.4mg·L(-1)) within 30min. Kinetic constants Km and Vm were determined to be 1006.7nmol·L(-1) and 56.8nmol·min(-1), respectively. Degradation products were identified as 3-phenoxybenzaldehyde, α-hydroxy-3-phenoxy-benzeneacetonitrile and phenol by gas chromatography-mass spectrometry (GC-MS). In addition to degradation of fenpropathrin, the cell-free extracts could degrade other pyrethroids including beta-cypermethrin, cyfluthrin, deltamethrin and cypermethrin. Additionally, the reaction conditions were optimized. In the sterile and non-sterile soils, 50mg·kg(-1) of fenpropathrin was reduced to 15.3 and 13.9mg·L(-1) in 1d, respectively. Sprayed 100 and 300mg·kg(-1) of fenpropathrin emulsifiable concentrate (EC), up to 84.6% and 92.1% of soil fenpropathrin were removed from soils within 7d, respectively. Taken together, our results depict the biodegradation characteristics of cell-free extracts from B. cereus ZH-3, highlight its promising potential in bioremediation of pyrethroid-contaminated soils and also provide new insights into the utilization of degrading microbes.
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Affiliation(s)
- Jie Liu
- Laboratory of Insect Toxicology, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou 510642, PR China
| | - Wenwen Huang
- Laboratory of Insect Toxicology, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou 510642, PR China
| | - Haitao Han
- Laboratory of Insect Toxicology, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou 510642, PR China
| | - Changchun She
- Laboratory of Insect Toxicology, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou 510642, PR China
| | - Guohua Zhong
- Laboratory of Insect Toxicology, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou 510642, PR China.
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Ribeiro C, Ribeiro AR, Maia AS, Gonçalves VMF, Tiritan ME. New trends in sample preparation techniques for environmental analysis. Crit Rev Anal Chem 2015; 44:142-85. [PMID: 25391434 DOI: 10.1080/10408347.2013.833850] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Environmental samples include a wide variety of complex matrices, with low concentrations of analytes and presence of several interferences. Sample preparation is a critical step and the main source of uncertainties in the analysis of environmental samples, and it is usually laborious, high cost, time consuming, and polluting. In this context, there is increasing interest in developing faster, cost-effective, and environmentally friendly sample preparation techniques. Recently, new methods have been developed and optimized in order to miniaturize extraction steps, to reduce solvent consumption or become solventless, and to automate systems. This review attempts to present an overview of the fundamentals, procedure, and application of the most recently developed sample preparation techniques for the extraction, cleanup, and concentration of organic pollutants from environmental samples. These techniques include: solid phase microextraction, on-line solid phase extraction, microextraction by packed sorbent, dispersive liquid-liquid microextraction, and QuEChERS (Quick, Easy, Cheap, Effective, Rugged and Safe).
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Affiliation(s)
- Cláudia Ribeiro
- a CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde , Gandra , Portugal
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15
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Grandy J, Asl-Hariri S, Pawliszyn J. Novel and Emerging Air-Sampling Devices. COMPREHENSIVE ANALYTICAL CHEMISTRY 2015. [DOI: 10.1016/bs.coac.2015.10.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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16
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Arip MNM, Heng LY, Ahmad M, Hasbullah SA. Reaction of 2,6-dichloroquinone-4-chloroimide (Gibbs reagent) with permethrin - an optical sensor for rapid detection of permethrin in treated wood. Chem Cent J 2013; 7:122. [PMID: 23867006 PMCID: PMC3726330 DOI: 10.1186/1752-153x-7-122] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2013] [Accepted: 06/27/2013] [Indexed: 11/22/2022] Open
Abstract
Background A novel optical sensor for the rapid and direct determination of permethrin preservatives in treated wood was designed. The optical sensor was fabricated from the immobilisation of 2,6-dichloro-p-benzoquinone-4-chloroimide (Gibbs reagent) in nafion/sol–gel hybrid film and the mode of detection was based on absorption spectrophotometry. Physical entrapment was employed as a method of immobilisation. Results The sensor gave a linear response range of permethrin between 2.56–383.00 μM with detection limit of 2.5 μM and demonstrated good repeatability with relative standard deviation (RSD) for 10 μM at 5.3%, 100 μM at 2.7%, and 200 μM at 1.8%. The response time of the sensor was 40 s with an optimum response at pH 11. Conclusions The sensor was useful for rapid screening of wood or treated wood products before detailed analysis using tedious procedure is performed. The validation study of the optical sensor against standard method HPLC successfully showed that the permethrin sensor tended to overestimate the permethrin concentration determined.
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Affiliation(s)
- Mohamad Nasir Mat Arip
- Forest Products Division, Forest Research Institute Malaysia, Selangor DE 52109, Malaysia
| | - Lee Yook Heng
- Faculty of Science and Technology/South East Asia Disaster Prevention Research Institute (SEADPRI), Universiti Kebangsaan Malaysia, Bangi, Selangor DE 43600, Malaysia
| | - Musa Ahmad
- Faculty of Science and Technology, Universiti Sains Islam Malaysia (USIM), Nilai, Negeri Sembilan 71800, Malaysia
| | - Siti Aishah Hasbullah
- Faculty of Science and Technology/South East Asia Disaster Prevention Research Institute (SEADPRI), Universiti Kebangsaan Malaysia, Bangi, Selangor DE 43600, Malaysia
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Wang J, Xiong J, Baker GA, JiJi RD, Baker SN. Developing microwave-assisted ionic liquid microextraction for the detection and tracking of hydrophobic pesticides in complex environmental matrices. RSC Adv 2013. [DOI: 10.1039/c3ra41139g] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Hollow fibre-based liquid-phase microextraction technique combined with gas chromatography–mass spectrometry for the determination of pyrethroid insecticides in water samples. Talanta 2012; 100:246-53. [DOI: 10.1016/j.talanta.2012.04.039] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2011] [Revised: 04/12/2012] [Accepted: 04/19/2012] [Indexed: 11/20/2022]
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