1
|
Adesanmi BO, Mantripragada S, Ayivi RD, Tukur P, Obare SO, Wei J. Adsorptive removal of organophosphate pesticides from aqueous solution using electrospun carbon nanofibers. Front Chem 2024; 12:1454367. [PMID: 39253543 PMCID: PMC11381308 DOI: 10.3389/fchem.2024.1454367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2024] [Accepted: 08/13/2024] [Indexed: 09/11/2024] Open
Abstract
Organophosphate pesticides (OPPs) are widely prevalent in the environment primarily due to their low cost and extensive use in agricultural lands. However, it is estimated that only about 5% of these applied pesticides reach their intended target organisms. The remaining 95% residue linger in the environment as contaminants, posing significant ecological and health risks. This underscores the need for materials capable of effectively removing, recovering, and recycling these contaminants through adsorption processes. In this research, adsorbent materials composed of electro-spun carbon nanofibers (ECNFs) derived from polyacrylonitrile was developed. The materials were characterized through several techniques, including scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), Fourier Transform Infrared Spectroscopy (FTIR), Brunauer-Emmett-Teller (BET) analysis, and contact angle measurements. SEM analysis revealed details of the structural properties and inter-fiber spacing variations of the carbon nanofibers. The results revealed that ECNFs possess remarkable uniformity, active surface areas, and high efficiency for adsorption processes. The adsorption studies were conducted using batch experiments with ethion pesticide in aqueous solution. High-Performance Liquid Chromatography-Diode Array Detector (HPLC-DAD) was utilized to quantify the concentrations of the OPP. Various parameters, including adsorbent dosage, pH, contact time, and initial ethion concentration, were investigated to understand their impact on the adsorption process. The adsorption isotherm was best described by the Freundlich model, while the kinetics of adsorption followed a non-integer-order kinetics model. The adsorption capacity of the ECNFs for OPP removal highlights a significant advancement in materials designed for environmental remediation applications. This study demonstrates the potential of ECNFs to serve as effective adsorbents, contributing to the mitigation of pesticide contamination in agricultural environments.
Collapse
Affiliation(s)
- Bukola O Adesanmi
- Department of Nanoscience, Joint School of Nanoscience and Nanoengineering, University of North Carolina, Greensboro, NC, United States
| | - Shobha Mantripragada
- Department of Nanoengineering, Joint School of Nanoscience and Nanoengineering, North Carolina Agricultural and Technical State University, Greensboro, NC, United States
| | - Raphael D Ayivi
- Department of Nanoscience, Joint School of Nanoscience and Nanoengineering, University of North Carolina, Greensboro, NC, United States
| | - Panesun Tukur
- Department of Nanoscience, Joint School of Nanoscience and Nanoengineering, University of North Carolina, Greensboro, NC, United States
| | - Sherine O Obare
- Department of Nanoscience, Joint School of Nanoscience and Nanoengineering, University of North Carolina, Greensboro, NC, United States
- Department of Nanoengineering, Joint School of Nanoscience and Nanoengineering, North Carolina Agricultural and Technical State University, Greensboro, NC, United States
| | - Jianjun Wei
- Department of Nanoscience, Joint School of Nanoscience and Nanoengineering, University of North Carolina, Greensboro, NC, United States
| |
Collapse
|
2
|
Wang J, Yue W, Teng Y, Zhai Y, Zhu H. Degradation kinetics and transformation pathway of methyl parathion by δ-MnO 2/oxalic acid reaction system. CHEMOSPHERE 2023; 320:138054. [PMID: 36739984 DOI: 10.1016/j.chemosphere.2023.138054] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 02/02/2023] [Accepted: 02/03/2023] [Indexed: 06/18/2023]
Abstract
Methyl parathion (MP) is a typical organophosphorus pesticide that is widely used worldwide, and hydrolysis, oxidation and reduction are the main abiotic degradation processes. Manganese dioxide (MnO2) and organic acid can participate in various geochemical processes of pollutants, a reaction system was constructed to degrade MP using δ-MnO2 and oxalic acid. The δ-MnO2/oxalic acid reaction system could efficiently degrade MP, and the removal rate of MP (20 μM) reached 67.83% within 30 h under the optimized conditions (pH 5, [δ-MnO2] = 2 mM, [oxalic acid] = 100 mM). MP was hydrolyzed by substitution reactions of SN@P and SN@C, and reduced by conversion of the nitro groups (-NO2) in MP and its hydrolysates to amino groups (-NH2). The primary active substance produced in the reaction system was the complexes dominated by Mn(III)-oxalic acid. This study provides a scientific basis for the degradation of organophosphorus pesticides using MnO2 and an organic acid. The results have important theoretical significance and application value for pollution control and remediation of organophosphorus pesticides.
Collapse
Affiliation(s)
- Jianwei Wang
- College of Water Sciences, Beijing Normal University, Beijing, 100875, China; Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125, China; Engineering Research Center of Groundwater Pollution Control and Remediation Ministry of Education, Ministry of Education of China, Beijing Normal University, China.
| | - Weifeng Yue
- College of Water Sciences, Beijing Normal University, Beijing, 100875, China; Engineering Research Center of Groundwater Pollution Control and Remediation Ministry of Education, Ministry of Education of China, Beijing Normal University, China.
| | - Yanguo Teng
- College of Water Sciences, Beijing Normal University, Beijing, 100875, China; Engineering Research Center of Groundwater Pollution Control and Remediation Ministry of Education, Ministry of Education of China, Beijing Normal University, China.
| | - Yuanzheng Zhai
- College of Water Sciences, Beijing Normal University, Beijing, 100875, China; Engineering Research Center of Groundwater Pollution Control and Remediation Ministry of Education, Ministry of Education of China, Beijing Normal University, China.
| | - Hanhua Zhu
- Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125, China.
| |
Collapse
|
3
|
Wang J, Teng Y, Zhai Y, Yue W, Pan Z. Spatiotemporal distribution and risk assessment of organophosphorus pesticides in surface water and groundwater on the North China Plain, China. ENVIRONMENTAL RESEARCH 2022; 204:112310. [PMID: 34762928 DOI: 10.1016/j.envres.2021.112310] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 09/27/2021] [Accepted: 10/27/2021] [Indexed: 06/13/2023]
Abstract
90 groundwater samples and 14 surface water samples were collected in wet season (summer) and dry season (winter) in the North China Plain (NCP), and analyzed for 11 organophosphorus pesticides (OPPs). The results showed that the main types of OPPs in surface water and groundwater were dimethoate, dichlorvos, methyl-parathion, malathion in both summer and winter. The OPP concentrations in groundwater and surface water were higher in summer than in winter. In the vertical direction, the distribution characteristics of different four types of groundwater sampling points are different. In the horizontal direction: farmland adjacent to a river (FAR) > central farmland (CF) > nonfarm area adjacent to a river (NFAR) > central nonfarm area (CNF). The OPPs concentrations in surface water adjacent to farmland were higher than that in surface water adjacent to nonfarm area. The main factors influencing the distribution of OPPs in the groundwater and surface water were the interaction process between them, the groundwater flow field and the OPPs used in agricultural activities. The ecological risk of OPPs to surface water was greater in summer than in winter. Water Flea was at medium risk, and malathion had the greatest influence on Water Flea in both summer and winter. The non-carcinogenic and carcinogenic risks of the four main OPPs in surface water were higher than in groundwater, and were higher in summer than in winter, but they would not lead to adverse health effects on local residents.
Collapse
Affiliation(s)
- Jianwei Wang
- College of Water Sciences, Beijing Normal University, Beijing 100875, China.
| | - Yanguo Teng
- College of Water Sciences, Beijing Normal University, Beijing 100875, China; Engineering Research Center of Groundwater Pollution Control and Remediation Ministry of Education, Beijing 100875, China.
| | - Yuanzheng Zhai
- College of Water Sciences, Beijing Normal University, Beijing 100875, China.
| | - Weifeng Yue
- College of Water Sciences, Beijing Normal University, Beijing 100875, China.
| | - Zhenzhen Pan
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
| |
Collapse
|
4
|
Preliminary Evaluation of the Possible Occurrence of Pesticides in Groundwater Contaminated with Nitrates—A Case Study from Southern Poland. WATER 2021. [DOI: 10.3390/w13213091] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This paper addresses groundwater pollution and the potential presence of pesticides within the catchment areas of two reservoirs that are sources of drinking water. The two reservoirs are Goczałkowice and Kozłowa Góra, both in Southern Poland. Agricultural and rural areas dominate both catchments. Archival data showed local groundwater contamination with nitrates. This indicated the possible presence of pesticides in shallow groundwater. In total, 13 groundwater samples from shallow sandy aquifers were collected. All the samples were tested for the presence of 35 organophosphate pesticides and 28 organochlorine pesticides. Additionally, in order to determine the current groundwater conditions, physicochemical parameters were measured in the field, and water samples were subjected to analysis of their chemical composition (incl. the determination of nitrates). The research outcomes showed that pesticides were not detected above the detection limits in any of the samples. Due to variations in the persistence and degradation rates of pesticides, the occurrence of these substances in the groundwater environment and the possibility of their migration to aquifers should not be completely excluded. Natural processes and factors (e.g., sorption, biodegradation, hydrolysis and redox conditions) may gradually reduce the pesticide concentrations in groundwater. The chemical analyses revealed high concentrations of nitrates in the groundwater. This suggests the possible influence of agriculture and fertilizer application on groundwater quality; however, a proportion of NO3- ions may be connected with improper sewage management within the two catchments. The absence of pesticides in groundwater impacted by agriculture may result from processes occurring in the aquifer and the rapid degradation of these compounds due to photolysis and prevailing weather conditions. In the vicinity of dwellings, nitrates also originate from domestic wastewater. Thus, the occurrence of pesticides in groundwater contaminated with NO3 cannot always be expected.
Collapse
|
5
|
A Systematic Review of Studies on Genotoxicity and Related Biomarkers in Populations Exposed to Pesticides in Mexico. TOXICS 2021; 9:toxics9110272. [PMID: 34822663 PMCID: PMC8624200 DOI: 10.3390/toxics9110272] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 10/12/2021] [Accepted: 10/15/2021] [Indexed: 11/17/2022]
Abstract
In agricultural activities, pest control is essential, and the most effective method is the use of chemical agents that also represent an important source of exposure to potentially toxic compounds. Pesticides constitute a heterogeneous group of compounds designed specifically to control different pests. Besides measuring their levels or that of their metabolites in air, plasma, serum, blood, urine, etc., some studies reported increased DNA damage levels after occupational or environmental pesticides exposure, evidenced by several cytogenetic biomarkers such as chromosomal aberrations (CA), sister chromatid exchanges (SCE), micronuclei frequency (MN) together with other nuclear abnormalities (NA), alkaline comet assay, but also changes in oxidative stress parameters and miRNA levels. Single or combined, these techniques have also been used in genotoxic biomonitoring studies of workers occupationally exposed to pesticides in Mexico. Despite being a country with great agricultural activity and reported excessive pesticide use, genotoxic studies have been relatively few and, in some cases, contradictory. A review was made of the studies available (published until the end of 2020 on PubMed, Web of Science, Redalyc and Scielo, both in English and Spanish) in the scientific literature that evaluated occupational exposure of human samples to pesticides assessed with DNA damage and related biomarkers in Mexico.
Collapse
|
6
|
García-Hernández J, Leyva-Morales JB, Bastidas-Bastidas PDJ, Leyva-García GN, Valdez-Torres JB, Aguilar-Zarate G, Betancourt-Lozano M. A comparison of pesticide residues in soils from two highly technified agricultural valleys in northwestern Mexico. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2021; 56:548-565. [PMID: 33999759 DOI: 10.1080/03601234.2021.1918977] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
A pesticide characterization is presented for two highly technified valleys in northwest Mexico: Culiacan Valley (CV) in Sinaloa and Yaqui Valley (YV) in Sonora. Approximately 250,000 kg of active ingredients are used every year, half of which are considered highly hazardous pesticides. Legacy pesticides are still present in the soils of these valleys. The aim of the present study was to identify and quantify a wide variety of pesticides in soils and correlate their concentrations with historical and current use. Agricultural soils from both valleys were sampled and analyzed using accelerated solvent extraction and subsequent quantification by gas chromatography with selective detectors. The most frequently detected pesticides (mean, µg g-1) in CV were organochlorines (0.1967), organophosphates (0.0928), synthetic pyrethroids (0.2565), organonitrogen (0.0552), and miscellaneous pesticides (0.1851). In YV, the most frequently detected pesticides were organochlorines (0.8607), organophosphates (0.0001), synthetic pyrethroids (0.0124), and miscellaneous pesticides (0.0009). The pesticides were more diverse in CV compared to those of YV, which was based on the types of crops produced. Both locations presented highly hazardous pesticides, including concentrations above the action levels established by the Canadian Soil Quality Guide. A follow-up risk assessment is recommended to assess potential effects.
Collapse
Affiliation(s)
- Jaqueline García-Hernández
- Laboratorio de Ciencias Ambientales, Centro de Investigación en Alimentación y Desarrollo A.C. (CIAD) Coordinación Guaymas, Guaymas, Sonora, México
| | - José Belisario Leyva-Morales
- Departamento de Salud-Licenciatura en Ciencias Biomédicas, Universidad Autónoma de Occidente (Unidad Regional Guasave), Guasave, Sinaloa
- Doctorado en Sustentabilidad, Universidad Autónoma de Occidente (Unidad Regional Guasave), Guasave, Sinaloa, México
| | - Pedro de Jesús Bastidas-Bastidas
- Laboratorio de Análisis de Plaguicidas, Centro de Investigación en Alimentación y Desarrollo, A.C. (Unidad Culiacán), Culiacán, Sinaloa, México
| | - Germán Nepomuceno Leyva-García
- Laboratorio de Ciencias Ambientales, Centro de Investigación en Alimentación y Desarrollo A.C. (CIAD) Coordinación Guaymas, Guaymas, Sonora, México
| | - José Benigno Valdez-Torres
- Laboratorio de Análisis de Plaguicidas, Centro de Investigación en Alimentación y Desarrollo, A.C. (Unidad Culiacán), Culiacán, Sinaloa, México
| | - Gabriela Aguilar-Zarate
- Laboratorio de Ecotoxicología, Centro de Investigación en Alimentación y Desarrollo, A.C. (Unidad Mazatlán), Mazatlán, Sinaloa, México
| | - Miguel Betancourt-Lozano
- Laboratorio de Ecotoxicología, Centro de Investigación en Alimentación y Desarrollo, A.C. (Unidad Mazatlán), Mazatlán, Sinaloa, México
| |
Collapse
|
7
|
Ben Mukiibi S, Nyanzi SA, Kwetegyeka J, Olisah C, Taiwo AM, Mubiru E, Tebandeke E, Matovu H, Odongo S, Abayi JJM, Ngeno EC, Sillanpää M, Ssebugere P. Organochlorine pesticide residues in Uganda's honey as a bioindicator of environmental contamination and reproductive health implications to consumers. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 214:112094. [PMID: 33677382 DOI: 10.1016/j.ecoenv.2021.112094] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 02/08/2021] [Accepted: 02/21/2021] [Indexed: 06/12/2023]
Abstract
Honey has multifaceted nutritional and medicinal values; however, its quality is hinged on the floral origin of the nectar. Taking advantage of the large areas that they cover; honeybees are often used as bioindicators of environmental contamination. The focus of the present paper was to examine the quality of honey from within the vicinity of an abandoned pesticide store in Masindi District in western Uganda. Surficial soils (<20 cm depths) and honey samples were collected from within the vicinity of the abandoned pesticide store and analysed for organochlorine pesticide (OCP) residues using gas chromatograph coupled to an electron capture detector (GC-ECD). The mean level of ∑DDTs in all the soil samples was 503.6 µg/kg dry weight (d.w). ∑DDTs contributed 92.2% to the ∑OCPs contamination loads in the soil samples, and others (lindane, aldrin, dieldrin, and endosulfans) contributed only 7.8%. Ratio (p, p'-DDE+p, p'-DDD)/p, p'-DDT of 1.54 suggested historical DDT input in the area. In all the honey samples, the mean level of ∑DDTs was 20.9 µg/kg. ∑DDTs contributed 43.3% to ∑OCPs contamination loads in the honey samples, followed by lindane (29.8%), endosulfans (23.6%) and dieldrin (3.2%), with corresponding mean levels of 14.4, 11.4 and 1.55 µg/kg, respectively. Reproductive risk assessment was done based on the hazard quotient (HQ) and hazard index (HI) procedure. In our study, the calculated HIs for adults (102.38), and children (90.33) suggested high potential health risks to the honey consumers. Lindane, endosulfan and p, p'-DDD detected in the honey samples at levels exceeding the acute reference dose (ARfD) are known risk factors for spontaneous abortion, reduced implantation, menstrual cycle shortening, impaired semen quality, and prostate cancer in exposed individuals and experimental animal models.
Collapse
Affiliation(s)
- Stuart Ben Mukiibi
- Department of Chemistry, Makerere University, P.O. Box 7062, Kampala, Uganda
| | - Steven Allan Nyanzi
- Department of Chemistry, Makerere University, P.O. Box 7062, Kampala, Uganda
| | - Justus Kwetegyeka
- Department of Chemistry, Kyambogo University, P.O. Box 1, Kyambogo, Uganda
| | - Chijioke Olisah
- Institute for Coastal and Marine Research, Nelson Mandela University, Port Elizabeth, South Africa
| | - Adewale Matthew Taiwo
- Department of Environmental Management and Toxicology, Federal University of Agriculture, PMB 2240, Abeokuta, Ogun State, Nigeria
| | - Edward Mubiru
- Department of Chemistry, Makerere University, P.O. Box 7062, Kampala, Uganda
| | - Emmanuel Tebandeke
- Department of Chemistry, Makerere University, P.O. Box 7062, Kampala, Uganda
| | - Henry Matovu
- Department of Chemistry, Makerere University, P.O. Box 7062, Kampala, Uganda; Department of Chemistry, Faculty of Science, Gulu University, P.O. Box 166, Gulu, Uganda
| | - Silver Odongo
- Department of Chemistry, Makerere University, P.O. Box 7062, Kampala, Uganda
| | | | | | - Mika Sillanpää
- Institute of Research and Development, Duy Tan University, Da Nang 550000, Viet Nam
| | - Patrick Ssebugere
- Department of Chemistry, Makerere University, P.O. Box 7062, Kampala, Uganda.
| |
Collapse
|
8
|
Liao X, Zhang C, Nan C, Lv Y, Fan Z, Hu L. Phenol driven changes onto MnO 2 surface for efficient removal of methyl parathion: The role of adsorption. CHEMOSPHERE 2021; 269:128695. [PMID: 33121815 DOI: 10.1016/j.chemosphere.2020.128695] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Revised: 09/28/2020] [Accepted: 10/17/2020] [Indexed: 06/11/2023]
Abstract
Manganese oxides (MnO2), important environmental oxides, have drawn significant attention in areas such as detoxification of micro-hazardous organic contaminants with electron-donating functional groups such as -OH. However, studies on whether these oxidized processes might further impact the fate of some esters like organophosphorus pesticide (OPPs) remain poorly understood. Herein, we propose a new mechanism involved in the enhanced removal of methyl parathion in mixtures of MnO2 and phenol. Specifically, the removal of methyl parathion (up to 73.7%) was significantly higher for a binary system than for MnO2 alone (approximately 9.3%) and was primarily due to adsorption rather than degradation. The extent of methyl parathion adsorption was dependent significantly on pH, reactant loading and metal ion co-solutes (such as Ca2+, Mg2+, Fe3+ and Mn2+). Both spectroscopic (FT-IR, SEM-EDX and XPS) and chromatographic (LC/HRMS) analyses showed that the remarkable increase in the number of organics (e.g., polymers) onto the MnO2 surface dominated methyl parathion adsorption via hydrogen bonding, n-π and π-π interactions, van der Waals forces and pore-diffusion. The results from this study provided evidence for the role of manganese oxides in adsorption of methyl parathion in soil-aquatic environments involving phenolic compounds.
Collapse
Affiliation(s)
- Xiaoping Liao
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430074, China
| | - Caixiang Zhang
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, PR China.
| | - Chao Nan
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, PR China
| | - You Lv
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, PR China
| | - Zenghui Fan
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, PR China
| | - Lisong Hu
- School of Xingfa Mining Engineering, Wuhan Institute of Technology, Wuhan 430074, China.
| |
Collapse
|
9
|
Wang J, Zhang C, Liao X, Teng Y, Zhai Y, Yue W. Influence of surface-water irrigation on the distribution of organophosphorus pesticides in soil-water systems, Jianghan Plain, central China. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 281:111874. [PMID: 33385909 DOI: 10.1016/j.jenvman.2020.111874] [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: 07/31/2020] [Revised: 11/09/2020] [Accepted: 12/19/2020] [Indexed: 06/12/2023]
Abstract
Surface-water irrigation is one of the most important irrigation methods in areas with abundant surface water. Although this method of irrigation is both economical and convenient, many contaminants are also introduced into the soil-water systems such as organophosphorus pesticides (OPPs). To study the influence of surface-water irrigation on the distribution of OPPs in soil-water systems, 42 water samples (38 groundwater and four surface water) and 85 soil samples (78 profile soil samples and seven topsoil samples) were taken from Shahu in the Jianghan Plain, China. Shahu is a typical Chinese surface-water irrigation district. During sampling, three types of areas were considered: surface-water irrigated areas, groundwater-irrigated areas away from rivers, and non-irrigated areas adjacent to rivers. The results showed that the concentrations of OPPs in the groundwater and soil in the surface-water irrigated farmland were higher than those in groundwater-irrigated farmland. The groundwater flow field and surface-water irrigation were responsible for the OPPs. Thus, it is clear that the surface-water irrigation had a strong influence on the distribution of OPPs in soil-water systems. Principal component analysis for OPPs content in groundwater showed that the key influencing factors on the distribution of OPPs in groundwater were the groundwater flow field and current pesticide use.
Collapse
Affiliation(s)
- Jianwei Wang
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, China; College of Water Sciences, Beijing Normal University, Beijing, 100875, China.
| | - Caixiang Zhang
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, China
| | - Xiaoping Liao
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, 430074, China
| | - Yanguo Teng
- College of Water Sciences, Beijing Normal University, Beijing, 100875, China.
| | - Yuanzheng Zhai
- College of Water Sciences, Beijing Normal University, Beijing, 100875, China
| | - Weifeng Yue
- College of Water Sciences, Beijing Normal University, Beijing, 100875, China.
| |
Collapse
|
10
|
Urióstegui-Acosta M, Tello-Mora P, Solís-Heredia MDJ, Ortega-Olvera JM, Piña-Guzmán B, Martín-Tapia D, González-Mariscal L, Quintanilla-Vega B. Methyl parathion causes genetic damage in sperm and disrupts the permeability of the blood-testis barrier by an oxidant mechanism in mice. Toxicology 2020; 438:152463. [PMID: 32294493 DOI: 10.1016/j.tox.2020.152463] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 04/02/2020] [Accepted: 04/05/2020] [Indexed: 12/12/2022]
Abstract
Methyl parathion (Me-Pa) is an extremely toxic organophosphorus pesticide still used in developing countries. It has been associated with decreased sperm function and fertility and with oxidative and DNA damage. The blood-testis barrier (BTB) is a structure formed by tight junction (TJ) proteins in Sertoli cells and has a critical role in spermatogenesis. We assessed the effect of repeated doses of Me-Pa (3-12 mg/kg/day for 5 days, i.p.) on sperm quality, lipid oxidation, DNA integrity, and BTB permeability in adult male mice and explored oxidation as a mechanism of toxicity. Me-Pa caused dose-dependent effects on sperm quality, lipoperoxidation, and DNA integrity. Testis histology results showed the disruption of spermatogenesis progression and atrophy of seminiferous tubules. The pesticide opened the BTB, as evidenced by the presence of a biotin tracer in the adluminal compartment of the seminiferous tubules. This effect was not observed after 45 days of exposure when a spermatogenic cycle had completed. The coadministration of the antioxidant α-tocopherol (50 mg/kg/day for 5 days, oral) prevented the effects of Me-Pa on sperm quality, DNA and the BTB, indicating the importance of oxidative stress in the damage generated by Me-Pa. As evidenced by immunochemistry, no changes were found in the localization of the TJ proteins of the BTB, although oxidation (carbonylation) of total proteins in testis homogenates was detected. Our results show that Me-Pa disturbs the BTB and that oxidation is involved in the observed toxic effects on sperm cells.
Collapse
Affiliation(s)
| | - Pamela Tello-Mora
- Toxicology Department, Cinvestav, Ave. IPN 2508, Colonia Zacatenco, Mexico City, 07360, Mexico
| | | | - José Mario Ortega-Olvera
- Physiology, Biophysics and Neurosciences Department, Cinvestav, Ave. IPN 2508, Colonia Zacatenco, Mexico City, 07360, Mexico
| | - Belem Piña-Guzmán
- National Polytechnic Institute, UPIBI, Ave. Acueducto s/n, Barrio La Laguna, Colonia Ticomán, 07340, Mexico City, Mexico
| | - Dolores Martín-Tapia
- Physiology, Biophysics and Neurosciences Department, Cinvestav, Ave. IPN 2508, Colonia Zacatenco, Mexico City, 07360, Mexico
| | - Lorenza González-Mariscal
- Physiology, Biophysics and Neurosciences Department, Cinvestav, Ave. IPN 2508, Colonia Zacatenco, Mexico City, 07360, Mexico
| | | |
Collapse
|
11
|
Shi Y, Shi Y, Zheng L. Individual and cellular responses of earthworms (Eisenia fetida) to endosulfan at environmentally related concentrations. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2020; 74:103299. [PMID: 31785546 DOI: 10.1016/j.etap.2019.103299] [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: 12/01/2017] [Revised: 11/10/2019] [Accepted: 11/11/2019] [Indexed: 06/10/2023]
Abstract
The presence of endosulfan at high levels in soils poses a potential risk for terrestrial ecosystems and human health via the food chain. Therefore, the effects of endosulfan at environmentally related doses on the terrestrial biota are of great concern. The present study measured the mortality, growth inhibition and ultrastructure of the stomach and skin of earthworms exposed to endosulfan at environmentally related concentrations to identify the individual and cellular effects of endosulfan on terrestrial biota. The results demonstrated that the growth inhibition of earthworms was significantly and positively correlated with the endosulfan dose and little mortality was found. The nuclei, microvilli and cuticles in the stomachs and skin cells of earthworms exhibited marked abnormalities. Endosulfan injured the ultrastructure of the nucleus even at low doses (0.5 mg·kg-1). Endosulfan seriously affected stomach microvilli and the cuticle structure of the skin, and this damage increased with increased exposure time and dose. Notably, cuticle damage was worse than the microvilli damage. These experiments demonstrated that the morphological changes in the tissue ultrastructure of the earthworm were more sensitive than growth inhibition, and these changes may be used as an early warning indicator of endosulfan pollution. The degree of damage to microvilli and cuticle is a promising bio-indicator to evaluate pesticide risk. The results of this study provide evidence of endosulfan toxicity and the importance of risk assessment on the terrestrial ecosystem.
Collapse
Affiliation(s)
- Yajing Shi
- School of Biomedical and Chemical Engineering, Liaoning Institute of Science and Technology, Benxi 117004, P.R. China
| | - Yajuan Shi
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
| | - Lisha Zheng
- China Agricultural University, Beijing 100094, China
| |
Collapse
|
12
|
Wang J, Teng Y, Zhang C, Liao X, Zhai Y, Zuo R. Activation of manganese dioxide with bisulfite for enhanced abiotic degradation of typical organophosphorus pesticides: Kinetics and transformation pathway. CHEMOSPHERE 2019; 226:858-864. [PMID: 30978597 DOI: 10.1016/j.chemosphere.2019.03.120] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 03/15/2019] [Accepted: 03/17/2019] [Indexed: 06/09/2023]
Abstract
Organophosphorus pesticides (OPPs), a kind of effective insecticide, have attracted extensive attention of researchers because of the high toxicity and refractory character of their degradation products. Given the ubiquity of manganese dioxide (MnO2) and bisulfite (HSO3-) in environmental media, the abiotic degradation of several typical OPPs by the MnO2-HSO3- reaction system was investigated in batch experiments. As a representative OPP, methyl parathion (MP) was chosen to be the focus of the study. The removal rate of MP was remarkably improved by adding bisulfite (HSO3-) to the MnO2 single-reaction system, and the oxidation product methyl paraoxon was below the detection limit. The primary active substances generated from the reaction system were determined to be Mn(III) species by adding excess radical scavengers or complexants (methanol and pyrophosphate) to the reaction system. On the basis of the metabolic products of MP identified by liquid chromatography-high-resolution mass spectrometry (LC/HRMS) and gas chromatography-mass spectrometry (GC/MS), the transformation pathway of MP in the MnO2-HSO3- reaction system was elicited, which included the predominant processes of hydrolysis and oxidation. Furthermore, the typical OPPs with different structures were also degraded efficiently by the reaction system because of the oxidative degradation of Mn(III). This study offers significative information related to the abiotic oxidation of manganese minerals and the fate and dissipation of OPPs in the actual environment.
Collapse
Affiliation(s)
- Jianwei Wang
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, China; College of Water Sciences, Beijing Normal University, Beijing, 100875, China
| | - Yanguo Teng
- College of Water Sciences, Beijing Normal University, Beijing, 100875, China
| | - Caixiang Zhang
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, China.
| | - Xiaoping Liao
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430074, China
| | - Yuanzheng Zhai
- College of Water Sciences, Beijing Normal University, Beijing, 100875, China
| | - Rui Zuo
- College of Water Sciences, Beijing Normal University, Beijing, 100875, China
| |
Collapse
|
13
|
Essa SS, El-Saied EM, El-Tawil OS, Gamal IM, El-Rahman SSA. Nanoparticles of zinc oxide defeat chlorpyrifos-induced immunotoxic effects and histopathological alterations. Vet World 2019; 12:440-448. [PMID: 31089315 PMCID: PMC6487240 DOI: 10.14202/vetworld.2019.440-448] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2018] [Accepted: 01/28/2019] [Indexed: 12/20/2022] Open
Abstract
Background and Aim: Chlorpyrifos (CPF) is a widely used organophosphate insecticide. Nanoparticles of zinc oxide (ZnO NPs) physically showed effective adsorbing property for some insecticides. The study was conducted to estimate the potential effect of ZnO NPs against CPF toxicity. Materials and Methods: Four groups of male rats were used; control group and three groups received drinking water contained 75 mg/L CPF, combined 75 mg/L CPF and 200 mg/L ZnO NPs, and 200 mg/L ZnO NPs, respectively. Results: CPF significantly decreased macrophage activity, serum lysozyme activity, and levels of interleukin-2 (IL-2) and IL-6; increased the percentage of DNA degeneration on comet assay of lymphocytes and significantly elevated hepatic and splenic malondialdehyde contents; and decreased their glutathione contents. The liver and spleen showed marked histological alterations after exposure to CPF with decreased expression of acetylcholinesterase. The coadministration of ZnO NPs ameliorated most of the undesirable effects of CPF, through elevation of macrophage and serum lysozyme activities, increased the levels of IL-2 and IL-6, corrected the oxidative stress markers, and alleviated most of the adverse effect exerted by CPF in liver and spleen tissues. Conclusion: The addition of ZnO NPs to CPF-contaminated drinking water may be useful as a powerful antioxidant agent against toxic damage induced by CPF particularly in individuals who are on daily occupational exposure to low doses of CPF.
Collapse
Affiliation(s)
- Sara S Essa
- Immune Section, Research Institute for Animal Reproduction, Cairo, Egypt
| | - Eiman M El-Saied
- Department of Toxicology, Forensic Medicine and Veterinary Regulations, Faculty of Veterinary Medicine, Cairo University, Egypt
| | - Osama S El-Tawil
- Department of Toxicology, Forensic Medicine and Veterinary Regulations, Faculty of Veterinary Medicine, Cairo University, Egypt
| | - Inas M Gamal
- Immune Section, Research Institute for Animal Reproduction, Cairo, Egypt
| | - Sahar S Abd El-Rahman
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, Cairo, Egypt
| |
Collapse
|
14
|
Rong X, Zhao G, Fein JB, Yu Q, Huang Q. Role of interfacial reactions in biodegradation: A case study in a montmorillonite, Pseudomonas sp. Z1 and methyl parathion ternary system. JOURNAL OF HAZARDOUS MATERIALS 2019; 365:245-251. [PMID: 30447631 DOI: 10.1016/j.jhazmat.2018.11.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 10/24/2018] [Accepted: 11/05/2018] [Indexed: 06/09/2023]
Abstract
Organophosphate pesticides are currently the most commonly used pesticides, but the mechanisms of biodegradation of these compounds are often unknown. In this study, we constructed a ternary biodegradation system containing methyl parathion (MP), a bacterial strain of Pseudomonas sp. Z1 with capability of degrading MP and montmorillonite, which is a common clay mineral in soils. The role of interfacial reactions between montmorillonite and the MP degrader on the biodegradation of MP was investigated by batch adsorption as well as through semi-permeable membrane experiments. The contact between degrader and montmorillonite in biodegradation was also dynamically examined using in situ attenuated total reflectance Fourier transform infrared spectroscopy. The metabolic activity of the degrading bacteria was also assessed using an isothermal microcalorimetric technique. The results indicate that sorption of bacterial cells onto montmorillonite enhances the metabolic activity of the bacteria and hence the biodegradation of MP by the bacteria, and that an amide group on a bacterial surface protein is responsible for the bacterial adhesion onto the montmorillonite. This stimulated effect ceased when the bacteria were physically separated from the surface of the clay by a membrane, demonstrating the importance of sorption of both the bacteria and the MP in the biodegradation process.
Collapse
Affiliation(s)
- Xingmin Rong
- Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture, College of Resources and Environment, Huazhong Agricultural University, Wuhan, 430070, China.
| | - Gang Zhao
- Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture, College of Resources and Environment, Huazhong Agricultural University, Wuhan, 430070, China; Guangdong Institute of Microbiology, Chinese Academy of Science, Guangzhou 510070, China
| | - Jeremy B Fein
- Department of Civil and Environmental Engineering and Earth Sciences, University of Notre Dame, Notre Dame, IN, 46556, USA
| | - Qiang Yu
- Department of Civil and Environmental Engineering and Earth Sciences, University of Notre Dame, Notre Dame, IN, 46556, USA
| | - Qiaoyun Huang
- Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture, College of Resources and Environment, Huazhong Agricultural University, Wuhan, 430070, China
| |
Collapse
|
15
|
Kumar B, Mishra M, Verma VK, Rai P, Kumar S. Organochlorines in urban soils from Central India: probabilistic health hazard and risk implications to human population. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2018; 40:2465-2480. [PMID: 29681023 DOI: 10.1007/s10653-018-0112-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Accepted: 04/18/2018] [Indexed: 06/08/2023]
Abstract
This study presents distribution of organochlorines (OCs) including HCH, DDT and PCBs in urban soils, and their environmental and human health risk. Forty-eight soil samples were extracted using ultrasonication, cleaned with modified silica gel chromatography and analyzed by GC-ECD. The observed concentrations of ∑HCH, ∑DDT and ∑PCBs in soils ranged between < 0.01-2.54, 1.30-27.41 and < 0.01-62.8 µg kg-1, respectively, which were lower than the recommended soil quality guidelines. Human health risk was estimated following recommended guidelines. Lifetime average daily dose (LADD), non-cancer risk or hazard quotient (HQ) and incremental lifetime cancer risk (ILCR) for humans due to individual and total OCs were estimated and presented. Estimated LADD were lower than acceptable daily intake and reference dose. Human health risk estimates were lower than safe limit of non-cancer risk (HQ < 1.0) and the acceptable distribution range of ILCR (10-6-10-4). Therefore, this study concluded that present levels of OCs (HCH, DDT and PCBs) in studied soils were low, and subsequently posed low health risk to human population in the study area.
Collapse
Affiliation(s)
- Bhupander Kumar
- Central Pollution Control Board, East Arjun Nagar, New Delhi, 10032, India.
| | - Meenu Mishra
- Central Pollution Control Board, East Arjun Nagar, New Delhi, 10032, India
| | - V K Verma
- Central Pollution Control Board, East Arjun Nagar, New Delhi, 10032, India
| | - Premanjali Rai
- Central Pollution Control Board, East Arjun Nagar, New Delhi, 10032, India
| | - Sanjay Kumar
- Central Pollution Control Board, East Arjun Nagar, New Delhi, 10032, India
| |
Collapse
|
16
|
Nam TH, Kim L, Jeon HJ, Kim K, Ok YS, Choi SD, Lee SE. Biomarkers indicate mixture toxicities of fluorene and phenanthrene with endosulfan toward earthworm (Eisenia fetida). ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2017; 39:307-317. [PMID: 27696228 DOI: 10.1007/s10653-016-9876-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Accepted: 09/14/2016] [Indexed: 06/06/2023]
Abstract
α-Endosulfan and some polycyclic aromatic compounds (PAHs) are persistent in the environment and can reach crop products via contaminated agricultural soils. They may even be present as mixtures in the soil and induce mixture toxicity in soil organisms such as earthworms. In this study, the combined toxicities of PAHs with α-endosulfan were determined in Eisenia fetida adults using an artificial soil system. α-Endosulfan and five PAHs were tested for their acute toxicity toward E. fetida in artificial soils. Only α-endosulfan, fluorene, and phenanthrene showed acute toxicities, with LC50 values of 9.7, 133.2, and 86.2 mg kg-1, respectively. A mixture toxicity assay was conducted using α-endosulfan at LC10 and fluorene or phenanthrene at LC50 in the artificial soils. Upon exposure to the mixture of fluorene and α-endosulfan, earthworms were killed in increasing numbers owing to their synergistic effects, while no other mixture showed any additional toxicity toward the earthworms. Along with the acute toxicity results, the biochemical and molecular changes in the fluorene- and phenanthrene-treated earthworms with or without α-endosulfan treatment demonstrated that enhancement of glutathione S-transferase activity was dependent on the addition of PAH chemicals, and the HSP70 gene expression increased with the addition of α-endosulfan. Taken together, these findings contribute toward understanding the adverse effects of pollutants when present separately or in combination with other types of chemicals.
Collapse
Affiliation(s)
- Tae-Hoon Nam
- School of Applied Biosciences, Kyungpook National University, Daegu, 702-701, Korea
| | - Leesun Kim
- School of Applied Biosciences, Kyungpook National University, Daegu, 702-701, Korea
| | - Hwang-Ju Jeon
- School of Applied Biosciences, Kyungpook National University, Daegu, 702-701, Korea
| | - Kyeongnam Kim
- School of Applied Biosciences, Kyungpook National University, Daegu, 702-701, Korea
| | - Yong-Sik Ok
- Department of Biological Environment, Korea Biochar Research Center, Kangwon National University, Chuncheon, 200-701, Korea
| | - Sung-Deuk Choi
- School of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology, Ulsan, 44919, Korea
| | - Sung-Eun Lee
- School of Applied Biosciences, Kyungpook National University, Daegu, 702-701, Korea.
| |
Collapse
|
17
|
Sánchez-Osorio JL, Macías-Zamora JV, Ramírez-Álvarez N, Bidleman TF. Organochlorine pesticides in residential soils and sediments within two main agricultural areas of northwest Mexico: Concentrations, enantiomer compositions and potential sources. CHEMOSPHERE 2017; 173:275-287. [PMID: 28113064 DOI: 10.1016/j.chemosphere.2017.01.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Revised: 12/27/2016] [Accepted: 01/03/2017] [Indexed: 06/06/2023]
Abstract
The agricultural Mexicali and Yaqui valleys (MV, YV) in northwest Mexico were heavily treated with organochlorine pesticides in the past. Residential soils and agricultural drain sediments were sampled in 2008-2009 and analyzed for DDTs (o,p'- and p,p'- isomers of DDE, DDD and DDT); hexachlorocyclohexanes (α-, β-, γ- and δ-HCH) and chlordanes (trans-chlordane, cis-chlordane, heptachlor and heptachlor exo-epoxide). Geometric means (GMs) (ng g-1 dry weight) were: MV soils (n = 27) ΣDDT 22, ΣHCH 0.80, ΣCHL 0.88; YV soils (n = 25) ΣDDT 5.0, ΣHCH 0.23, ΣCHL 0.67; MV sediments (n = 3) ΣDDT 5.0, ΣHCH 0.23, ΣCHL 0.53; YV sediments (n = 8) ΣDDT 2.6, ΣHCH 0.12, ΣCHL 0.090. GMs were significantly higher (p < 0.05) in MV than YV soils for ΣDDT and ΣHCH, but not for ΣCHL. Comparison to worldwide regulatory guideline values (RGVs) for residential soils showed all compounds below mean or GM RGVs, but above the lowest RGV in some cases. Low p,p'-DDT/(p,p'-DDT + p,p'-DDE) in most soils indicated aged residues. Lack of p,p'-DDT metabolism might account for its dominance in a few soils. HCH isomer profiles suggested aged technical HCH in the YV, and technical HCH + lindane in the MV. Heptachlor dominated the ΣCHL, probably from application of technical heptachlor as well as chlordane. Chiral compounds were nonracemic in soils and sediments and indicated enantioselective microbial degradation of (+)α-HCH, (-)trans-chlordane, (-)cis-chlordane and (+)o,p'-DDT. Depletion of (+)o,p'-DDT in soils may account for similar enantiomer signatures previously reported in air of northwest Mexico.
Collapse
Affiliation(s)
- José Luis Sánchez-Osorio
- Instituto de Investigaciones Oceanológicas, Universidad Autónoma de Baja California, Km 106 Carretera Tijuana-Ensenada, 22860, Ensenada, Baja California, Mexico
| | - José Vinicio Macías-Zamora
- Instituto de Investigaciones Oceanológicas, Universidad Autónoma de Baja California, Km 106 Carretera Tijuana-Ensenada, 22860, Ensenada, Baja California, Mexico.
| | - Nancy Ramírez-Álvarez
- Instituto de Investigaciones Oceanológicas, Universidad Autónoma de Baja California, Km 106 Carretera Tijuana-Ensenada, 22860, Ensenada, Baja California, Mexico
| | - Terry F Bidleman
- Department of Chemistry, Umeå University, Umeå, SE-901 87, Sweden.
| |
Collapse
|
18
|
Martínez-Ibarra A, Morimoto S, Cerbón M, Prado-Flores G. Effects on the reproductive parameters of two generations of Rattus norvegicus offspring from dams exposed to heptachlor during gestation and lactation. ENVIRONMENTAL TOXICOLOGY 2017; 32:856-868. [PMID: 27240701 DOI: 10.1002/tox.22285] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Revised: 04/22/2016] [Accepted: 04/30/2016] [Indexed: 06/05/2023]
Abstract
Heptachlor has been targeted for global elimination because of its toxicity and environmental persistence, in accordance with the Stockholm Convention on Persistent Organic Pollutants (POPs). However, there is no regulation of heptachlor use in Mexico, where relatively high levels have been found in maternal breast milk. The aim of this study was to determine the effects of heptachlor on the reproductive system of offspring of two consecutive generations of rats (F1 and F2) from dams orally administered heptachlor during midgestation and lactation. Female offspring were analyzed for different phenotypic, reproductive, and molecular parameters. In the F1 generation, heptachlor treatment induced decreased body weight at weaning, increased female anogenital distance, and delayed vaginal opening. In both generations, serum progesterone levels decreased and estradiol levels remained unchanged, while overexpression of the progesterone receptor was observed in uterine epithelial cells on estrus day. In the F2 generation, expression of the estrogen receptor α increased in the glandular epithelium. Finally, heptachlor treatment did not affect apoptosis in the uterine epithelial cells. Overall, the results indicate that heptachlor induced female reproductive alterations when administered to dams during the perinatal period. Accordingly, exposure to heptachlor may represent a risk for the reproductive health of humans. © 2016 Wiley Periodicals, Inc. Environ Toxicol 32: 856-868, 2017.
Collapse
Affiliation(s)
- Alejandra Martínez-Ibarra
- Departamento de Producción Agrícola y Animal, Universidad Autónoma Metropolitana-Xochimilco, D.F, México, México
| | - Sumiko Morimoto
- Departamento de Biología de la Reproducción, Instituto Nacional de Ciencias Médicas y de la Nutrición S.Z, D.F, México, México
| | - Marco Cerbón
- Unidad de Investigación en Reproducción Humana, Instituto Nacional de Perinatología-Facultad de Química, Universidad Nacional Autónoma de México, D.F, México, México
| | - Guadalupe Prado-Flores
- Departamento de Producción Agrícola y Animal, Universidad Autónoma Metropolitana-Xochimilco, D.F, México, México
| |
Collapse
|
19
|
Velasco A, Aburto-Medina A, Shahsavari E, Revah S, Ortiz I. Degradation mechanisms of DDX induced by the addition of toluene and glycerol as cosubstrates in a zero-valent iron pretreated soil. JOURNAL OF HAZARDOUS MATERIALS 2017; 321:681-689. [PMID: 27694047 DOI: 10.1016/j.jhazmat.2016.09.047] [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: 05/19/2016] [Revised: 09/08/2016] [Accepted: 09/21/2016] [Indexed: 06/06/2023]
Abstract
Abiotic and biotic processes can be used to remediate DDX (DDT, DDD, DDE, and DDNS) contaminated soils; these processes can be fostered using specific carbon-amendments to stimulate particular soil indigenous microbial communities to improve rates or extent of degradation. In this study, toluene and glycerol were evaluated as cosubstrates under aerobic and anoxic conditions to determine the degradation efficiencies of DDX and to elucidate possible degradation mechanisms. Slurry microcosms experiments were performed during 60 days using pretreated soil with zero-valent iron (ZVI). Toluene addition enhanced the percentage of degradation of DDX. DDNS was the main compound degraded (around 86%) under aerobic conditions, suggesting cometabolic degradation of DDX by toluene-degrading soil bacteria. Glycerol addition under anoxic conditions favored the abiotic degradation of DDX mediated by sulfate-reducing bacteria activity, where DDT was the main compound degraded (around 90%). The 16S rDNA metagenomic analyses revealed Rhodococcus ruber and Desulfosporosinus auripigmenti as the predominant bacterial species after 40 days of treatment with toluene and glycerol additions, respectively. This study provides evidence of biotic and abiotic DDX degradation by the addition of toluene and glycerol as cosubstrates in ZVI pretreated DDX-contaminated soil.
Collapse
Affiliation(s)
- Antonio Velasco
- Posgrado en Ciencias Naturales e Ingeniería, Universidad Autónoma Metropolitana-Cuajimalpa (UAM-C), Av. Vasco de Quiroga 4871, Col. Santa Fe, Delegación Cuajimalpa de Morelos, 05348, Mexico City, Mexico
| | - Arturo Aburto-Medina
- Centre for Environmental Sustainability and Remediation, School of Applied Sciences, RMIT University, Bundoora, Victoria, 3083, Australia; Departamento de Biotecnología, Escuela de Ingeniería, Instituto Tecnológico y de Estudios Superiores de Monterrey (ITESM), Vía Atlixcáyotl No. 2301, Reserva Territorial Atlixcáyotl, San Andrés Cholula, 72800, Puebla, Mexico
| | - Esmaeil Shahsavari
- Centre for Environmental Sustainability and Remediation, School of Applied Sciences, RMIT University, Bundoora, Victoria, 3083, Australia
| | - Sergio Revah
- Departamento de Procesos y Tecnología, Universidad Autónoma Metropolitana-Cuajimalpa (UAM-C), Av. Vasco de Quiroga 4871, Col. Santa Fe, Delegación Cuajimalpa de Morelos, 05348, Mexico City, Mexico
| | - Irmene Ortiz
- Departamento de Procesos y Tecnología, Universidad Autónoma Metropolitana-Cuajimalpa (UAM-C), Av. Vasco de Quiroga 4871, Col. Santa Fe, Delegación Cuajimalpa de Morelos, 05348, Mexico City, Mexico.
| |
Collapse
|
20
|
Polanco Rodríguez ÁG, Riba López MI, DelValls Casillas TÁ, Araujo León JA, Mahjoub O, Prusty AK. Monitoring of organochlorine pesticides in blood of women with uterine cervix cancer. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2017; 220:853-862. [PMID: 27876223 DOI: 10.1016/j.envpol.2016.10.068] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Revised: 10/23/2016] [Accepted: 10/23/2016] [Indexed: 06/06/2023]
Abstract
In Yucatan, Mexico, chronic exposure of Mayan population to pesticides is expected as about 30 per cent are drinking polluted water. Residues of organochlorine pesticides (OCP) were monitored in 18 municipalities of Yucatan with high mortality rates due to uterine cervix cancer. 70 blood samples collected from Mayan women living in livestock, agricultural and metropolitan area were analyzed for OCP. Solid Phase Extraction was performed on C18 cartridges and analyzed by Gas Chromatography with Electron Capture Detector. The results showed that the highest OCP levels were detected in blood of women living in the livestock area. OCP detected were endosulfan I (7.35 μg/mL), aldrin (3.69 μg/mL), 4,4' DDD (2.33 μg/mL), 1.39 and 1.46 μg/mL of δ-HCH. Women from the agricultural area had high concentrations of OCP in their blood, particularly dieldrin (1.19 μg/mL), and 1.26 μg/mL of 4,4' DDE. In the metropolitan area, 0.080 μg/mL of γ-HCH and 0.064 μg/mL of heptachlore were detected. This monitoring study was also based on epidemiological data of uterine cervical cancer. It was found that environmental factors may have facilitated the infiltration of OCP to the aquifer used for potable water supply. These factors in addition to poverty can have impacts on public health. This first exploratory study suggests that monitoring of OCP in human is important for the establishment of health promotion programs. The integrative analysis of both, environmental and social factors would be helpful to characterize the bioaccumulation of pesticides in humans.
Collapse
Affiliation(s)
- Ángel G Polanco Rodríguez
- Laboratorio de Medicina Social y Salud Pública, Centro de Investigaciones Regionales, Universidad Autónoma de Yucatán, Av. Itzáez x 59 #490, Centro, C.P. 97000, Mérida, Yucatán, Mexico.
| | - M Inmaculada Riba López
- UNESCO/UNITWIN Wicop, Departamento de Química Física, Facultad de Ciencias del Mar y Ambientales, Universidad de Cádiz, Puerto Real, Cádiz, Spain
| | - T Ángel DelValls Casillas
- UNESCO/UNITWIN Wicop, Departamento de Química Física, Facultad de Ciencias del Mar y Ambientales, Universidad de Cádiz, Puerto Real, Cádiz, Spain
| | - J Alfredo Araujo León
- Laboratorio de Cromatografía, Facultad de Química, Universidad Autónoma de Yucatán, C. 43 No. 613 x C. 90 Col. Inalámbrica, C.P. 97069, Mérida, Yucatán, Mexico
| | - Olfa Mahjoub
- National Research Institute for Rural Engineering, Water, and Forestry, Hédi Karrai Street, P.O. Box 10, 2080, Ariana, Tunisia
| | - Anjan Kumar Prusty
- Environmental Impact Assessment Division, Gujarat Institute of Desert Ecology, Post Box - 83, Mundra Road, Opp. Changleshwar Temple, Bhuj 370001, Gujarat, India
| |
Collapse
|
21
|
Liao X, Zhang C, Liu Y, Luo Y, Wu S, Yuan S, Zhu Z. Abiotic degradation of methyl parathion by manganese dioxide: Kinetics and transformation pathway. CHEMOSPHERE 2016; 150:90-96. [PMID: 26891361 DOI: 10.1016/j.chemosphere.2016.02.028] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Revised: 02/05/2016] [Accepted: 02/06/2016] [Indexed: 06/05/2023]
Abstract
Methyl parathion, a widely used insecticide around the world, has aroused gradually extensive concern of researchers due to its degradation product such as methyl paraoxon, with higher toxicity for mammals and more recalcitrant. Given the ubiquity of manganese dioxide (MnO2) in soils and aquatic sediments, the abiotic degradation of methyl parathion by α-MnO2 was investigated in batch experiments. It was found that methyl parathion was decomposed up to 90% by α-MnO2 in 30 h and the removal efficiency of methyl parathion depended strongly on the loading of α-MnO2 and pH value in the solution where the reactions followed pseudo-first-order model well. The coexisting metal ions (such as Ca(2+), Mg(2+) and Mn(2+)) weakened markedly the degradation of methyl parathion by α-MnO2. However, the effect of dissolved organic matter (HA-Na) on reaction rates presented two sides: to improve hydrolysis rate but deteriorate oxidation rate of methyl parathion. Based on the degradation products identified by gas chromatography-mass spectrometer (GC/MS) and liquid chromatography high-resolution mass spectrometer (LC/HRMS), both hydrolysis and oxidation processes were proposed to be two predominant reaction mechanisms contributing to methyl parathion degradation by α-MnO2. This study provided meaningful information to elucidate the abiotic dissipation of methyl parathion by manganese oxide minerals in the environment.
Collapse
Affiliation(s)
- Xiaoping Liao
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, PR China
| | - Caixiang Zhang
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, PR China.
| | - Yuan Liu
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, PR China
| | - Yinwen Luo
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, PR China
| | - Sisi Wu
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, PR China
| | - Songhu Yuan
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, PR China
| | - Zhenli Zhu
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, PR China
| |
Collapse
|
22
|
Wang YS, Wu TH, Yang Y, Zhu CL, Ding CL, Dai CC. Binding and detoxification of chlorpyrifos by lactic acid bacteria on rice straw silage fermentation. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2016; 51:316-325. [PMID: 26852781 DOI: 10.1080/03601234.2015.1128744] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
This investigation examined the reduction of pesticide residues on straw inoculated with lactic acid bacteria (LAB) during ensiling. Lactobacillus casei WYS3 was isolated from rice straw that contained pesticide residues. Non-sterilized rice straw, which was inoculated with L. casei WYS3, showed increased removal of chlorpyrifos after ensiling, compared with rice straw that was not inoculated with L. casei WYS3 or sterilized rice straw. In pure culture, these strains can bind chlorpyrifos as indicated by high-performance liquid chromatography analysis. Viable L. casei WYS3 was shown to bind 33.3-42% of exogenously added chlorpyrifos. These results are similar to those of acid-treated cells but less than those of heat-treated cells, which were found to bind 32.0% and 77.2% of the added chlorpyrifos respectively. Furthermore, gas chromatography-mass spectrometry analysis determined that L. casei WYS3 detoxified chlorpyrifos via P-O-C cleavage. Real-time polymerized chain reaction analysis determined that organophosphorus hydrolase gene expression tripled after the addition of chlorpyrifos to LAB cultures, compared with the control group (without chlorpyrifos). This paper highlights the potential use of LAB starter cultures for the detoxification and removal of chlorpyrifos residues in the environment.
Collapse
Affiliation(s)
- Yan-Su Wang
- a Jiangsu Key Laboratory for Microbes and Functional Genomics, Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources, College of Life Sciences, Nanjing Normal University , Nanjing , China
| | - Tian-Hao Wu
- a Jiangsu Key Laboratory for Microbes and Functional Genomics, Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources, College of Life Sciences, Nanjing Normal University , Nanjing , China
| | - Yao Yang
- a Jiangsu Key Laboratory for Microbes and Functional Genomics, Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources, College of Life Sciences, Nanjing Normal University , Nanjing , China
| | - Cen-Ling Zhu
- a Jiangsu Key Laboratory for Microbes and Functional Genomics, Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources, College of Life Sciences, Nanjing Normal University , Nanjing , China
| | - Cheng-Long Ding
- b Institute of Livestock Science, Jiangsu Academy of Agricultural Sciences , Nanjing , China
| | - Chuan-Chao Dai
- a Jiangsu Key Laboratory for Microbes and Functional Genomics, Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources, College of Life Sciences, Nanjing Normal University , Nanjing , China
| |
Collapse
|
23
|
Liu Y, Zhang C, Liao X, Luo Y, Wu S, Wang J. Hydrolysis mechanism of methyl parathion evidenced by Q-Exactive mass spectrometry. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:19747-19755. [PMID: 26278904 DOI: 10.1007/s11356-015-5169-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Accepted: 08/06/2015] [Indexed: 06/04/2023]
Abstract
Organophosphorus pesticides (OPPs), a kind of widely used pesticides, are currently attracting great attention due to their adverse effects on human central nervous systems, particularly in children. Although the hydrolysis behavior of OPPs has been studied well, its hydrolysis mechanism remained controversial, especially at various pH conditions, partly due to their relatively complex structures and abundant moieties that were prone to be attacked by nucleophiles. The Q-Exactive mass spectrometer, part of those hybrid high-resolution mass spectrometers (HRMS), was used to determine hydrolysis products of methyl parathion (MP), a kind of OPPs in situ buffer aqueous solution with pH ranging from 1 to 13 in this study. Most of the complex hydrolysis products of MP were identified due to the high sensitivity and accuracy of HRMS. The results demonstrated that the hydrolysis rate and pathway of MP were strong pH dependent. With the increase of pH, the hydrolysis rate of MP increased, and two different reaction mechanisms were identified: SN (2)@P pathway dominated the hydrolysis process at high pH (e.g., pH ≥ 11) while SN (2)@C was the main behavior at low pH (e.g., pH ≤ 9). This study helps understand the hydrolysis mechanism of OPPs at various pH and extends the use of Q-Exactive mass spectrometry in identifying organic pollutants and their degradation products in environmental matrices.
Collapse
Affiliation(s)
- Yuan Liu
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, People's Republic of China
| | - Caixiang Zhang
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, People's Republic of China.
| | - Xiaoping Liao
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, People's Republic of China
| | - Yinwen Luo
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, People's Republic of China
| | - Sisi Wu
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, People's Republic of China
| | - Jianwei Wang
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, People's Republic of China
| |
Collapse
|