Pesticide residues in agricultural topsoil from the Hainan tropical riverside basin: Determination, distribution, and relationships with planting patterns and surface water

Tan, Huadong; Li, Qinfen; Zhang, Huijie; Wu, Chunyuan; Zhao, Shunying; Deng, Xiao; Li, Yang

doi:10.1016/j.scitotenv.2020.137856

Cited by 73 publications

(27 citation statements)

References 56 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Hansen et al (2019) in regions of Nebraska, in the United States, where there is high corn production, detected atrazine in surface waters above the stipulated levels (175.74 μg L −1 ), approximately 58 times higher than that allowed by USEPA (2009). In the China, Tan et al (2020) reported the occurrence of atrazine (4.1 μg L −1 ) in surface water, exceeding 2 times the limit allowed by the Ministry of Health (2007). In Brazil, in aquatic ecosystems, have been detected atrazine concentrations (2.7, 2.89, 4.1, 4.92 and 9.33 μg L −1 ) until 4.66 times higher than the permitted by Brazilian legislation for freshwater, as well as levels that exceed the value stipulated by United State and China (Armas et al 2007;Della-Flora et al 2019;Loro et al 2015;Moreira et al 2012).…”

Section: Discussionmentioning

confidence: 89%

Use of nontarget organism Chironomus sancticaroli to study the toxic effects of nanoatrazine

et al. 2021

View full text Add to dashboard Cite

Atrazine was banned by the European Union in 2004, but is still used in many countries. Agricultural research employing nanotechnology has been developed in order to reduce the impacts to the environment and nontarget organisms. Nanoatrazine was developed as a carrier system and have been considered efficient in weed control. However, its toxicity must be verified with nontarget organisms. In this context, the aim of the present study was to investigate ecotoxicological effects of solid lipid nanoparticles (empty and loaded with atrazine) and atrazine on Chironomus sancticaroli larvae, evaluating the endpoints: mortality, mentum deformity, development rate and biochemical biomarkers. The contaminant concentrations used were 2, 470, 950, and 1900 μg L −1 in acute (96 h) and 2 μg L −1 in subchronic (10 days) bioassays. An environmentally relevant concentration of atrazine (2 μg L −1 ) presented toxic and lethal effects towards the larvae. The nanoparticles loaded with atrazine showed toxic effects similar to free atrazine, causing mortality and biochemical alterations on the larvae. The nanoparticle without atrazine caused biochemical alterations and mortality, indicating a possible toxic effect of the formulation on the larvae. In the acute bioassay, most concentrations of nanoparticles loaded with atrazine were not dose dependent for the endpoint mortality. Only the atrazine concentration of 470 μg L −1 was statistically significant to endpoint mentum deformity. The atrazine and nanoparticles (with and without atrazine) did not affect larval development.The results indicate that Chironomus sancticaroli was sensitive to monitor nanoatrazine, presenting potential to be used in studies of toxicity of nanopesticides.

show abstract

Section: Discussionmentioning

confidence: 89%

Use of nontarget organism Chironomus sancticaroli to study the toxic effects of nanoatrazine

et al. 2021

View full text Add to dashboard Cite

show abstract

“…DIF was also detected in 43% of tomato crops (maximum 64.3 µg/kg) in Western Algeria [3]. DIF was not only detected in agriculture productions, but also in the water bodies due to its high persistence [4][5][6]. Because it widely exists in the environment and food, the toxicity of IDF was analyzed by some groups.…”

Section: Introductionmentioning

confidence: 99%

Sub-Chronic Difenoconazole Exposure Induced Gut Microbiota Dysbiosis in Mice

Zhaorigetu

Wang

et al. 2022

Toxics

View full text Add to dashboard Cite

Difenoconazole (DIF) is a widely separated triazole fungicide in many countries. The excessive usage of DIF increases the high volume of residues in agriculture production and water bodies. Some previous studies demonstrated the toxic effects of DIF on non-target animals, however, there were still some gaps in the knowledge of the potential hazards of DIF to mammals and human health. Herein, 7-week-old male mice were exposed to 30 and 100 mg/kg/day DIF for 14 and 56 days. We observed that 56 days of DIF exposure decreased the colonic mucus expression of alcin blue-periodic acid-schiff (AB-PAS) stain and the immunochemical stain of muc2 protein. The transcript levels of mucin protein (muc1, muc2 and muc3) decreased significantly in the gut of mice followed 56 days of 100 mg/kg/day DIF exposure. In addition, the gut microbiota composition was also affected after 14 or 56 days of DIF exposure. Although the mucus expression after 14 days of DIF exposure only decreased slightly, the gut microbiota composition compared with the control group was changed significantly. Moreover, the DIF-30 and DIF-100 caused respectively different changes on the gut microbiota. The relative abundance of Bacteroidetes decreased significantly after 14 days and 56 days of DIF exposure. After 14 days of DIF exposure, there were 35 and 18 differential genera in the DIF-30 and DIF-100 group, respectively. There were 25 and 32 differential genera in the DIF-30 and DIF-100 group after 56 days of exposure, respectively. Meanwhile, the alpha diversity indexes, including observed species, Shannon, Simpson, Chao1 and ACE, in gut microbiota decreased significantly after 56 days of DIF exposure. Interestingly, the relative abundance of Akkermansia increased significantly after 56 days of 100 mg/kg/d DIF exposure. Although Akkermansia was considered as one probiotic, the phenomenon of dramatic Akkermansia increase with the decrease in gut microbiota diversity needed further discussion. These results provided some new insights on how DIF exposure impacts the mucus barrier and induces gut microbiota dysbiosis.

show abstract

“…The problem of protection and rational use of natural resources has now become one of the most urgent for humanity [1][2][3]. In Russia, agricultural nature management depends on a number of social and economic factors, representing the interaction of society with the environment.…”

Section: Introductionmentioning

confidence: 99%

Pesticide monitoring of agricultural soil pollution

et al. 2020

View full text Add to dashboard Cite

The role of pesticides in modern agriculture is not in doubt; the continuous improvement of drugs and technologies for their use reduces the possibility of environmental pollution and their accumulation in manufactured products. The purpose of the research is to assess the pollution of the soil cover of agricultural land with residual amounts of pesticides in the Samara region conditions. Tasks: to analyze the content of insectoacaricides and herbicides residual amounts in the soil in the spring and autumn; - establish patterns of residual pesticides migration along the soil profile. As a result of studies conducted in 2016-2018. it was found that the content of total DDT related to the first hazard class in the studied samples decreases, a similar situation is observed for organochlorine insectoacaricides HCH and HCB, their residual amounts were found in the soil in the autumn and spring periods of 2016. Residual quantities of the organophosphorus insect metacosacaricide were detected annually (the exception was the autumn period of 2017). Regarding the content of residual amounts of herbicides in the soil (2, 4-D, dalapon, simazine, atrazine, promethrin, trifluralin, THAN), it can be noted that during the years of research their content was mainly reduced. A study of the pesticides vertical migration showed that the content of their residual amounts in the soil increases with depth, reaching a maximum at a depth of 1.0-1.6 m.

show abstract

Pesticide residues in agricultural topsoil from the Hainan tropical riverside basin: Determination, distribution, and relationships with planting patterns and surface water

Cited by 73 publications

References 56 publications

Use of nontarget organism Chironomus sancticaroli to study the toxic effects of nanoatrazine

Use of nontarget organism Chironomus sancticaroli to study the toxic effects of nanoatrazine

Sub-Chronic Difenoconazole Exposure Induced Gut Microbiota Dysbiosis in Mice

Pesticide monitoring of agricultural soil pollution

Contact Info

Product

Resources

About