Contamination of neonicotinoid insecticides in soil-water-sediment systems of the urban and rural areas in a rapidly developing region: Guangzhou, South China

Zhang, Chao; Yi, Xiaohui; Chen, Chen; Tian, Di; Liu, Hongbin; Xie, Lingtian; Zhu, Xiuping; Huang, Mingzhi; Ying, Guang‐Guo

doi:10.1016/j.envint.2020.105719

Cited by 107 publications

(30 citation statements)

References 51 publications

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“…Tan et al [36] reported that the most frequently detected pesticide in Chinese agricultural topsoil was imidacloprid. In agreement, Zhang et al [37] revealed that imidacloprid was the most dominant neonicotinoid insecticide in agricultural areas.…”

Section: Discussionsupporting

confidence: 66%

Determination of Pesticide Residues in Agricultural Soil Samples Collected from Sinai and Ismailia Governorates, Egypt

et al. 2021

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Soil contamination by pesticide residues is a major concern due to their high soil persistence and dangerous effect on humans. Therefore, the aim of this study was to detect and determine the concentration of pesticide residues in agricultural soil samples. Agricultural soil samples were collected from three Egyptian governorates and were extracted using the QuEChERS method and analyzed by gas chromatography-mass spectrometry. A total of twenty different pesticide residues (approximately 43% of the tested pesticides) were detected in agricultural soil samples obtained from the three governorates. South Sinai was heavily contaminated by pesticides, with a total concentration of 0.505 mg/kg, followed by Ismailia (0.207 mg/kg) and North Sinai (0.075 mg/kg). According to its use in agriculture, the percentage of pesticide residues detected revealed that 60% of the pesticides were fungicides and 35% were insecticides. In Ismailia governorate, carbendazim was detected in 40% of agricultural soil samples. In North Sinai governorate, boscalid and chlorpyrifos were detected in 66.66% of the soil samples. In South Sinai governorate, thiophanate-methyl, metalaxyl, and carbendazim were detected in 50% of the soil samples. This study revealed the presence of different pesticide residues in Egyptian agricultural soil samples, which can affect agricultural products grown on contaminated agricultural soil. The accumulation of mixtures of pesticide residues in soil constitutes mostly toxic chemicals that are a worldwide environmental issue that must be considered in the agricultural production sustainability assessment. These results could be used as a base for designing environmental maps to cover the pesticide residue contamination that affects agricultural crops in Egypt.

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Section: Discussionsupporting

confidence: 66%

Determination of Pesticide Residues in Agricultural Soil Samples Collected from Sinai and Ismailia Governorates, Egypt

et al. 2021

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“…The degradation and detoxification of toxic organic pollutants in the complex water environment is very important for water ecological safety and human health. − Advanced oxidation processes (AOPs) can generate strong oxidizing active oxygen species to oxidize and degrade toxic organic pollutants, providing an effective solution for in situ detoxification and purification of complex water environments. − Some impurities such as inorganic ions and humic acid may react with free radicals (such as ·OH and SO 4 · – ), leading to an ineffective consumption of oxidants. This greatly limits the application of AOPs in complex water environments.…”

Section: Introductionmentioning

confidence: 99%

Tailored d-Band Facilitating in Fe Gradient Doping CuO Boosts Peroxymonosulfate Activation for High Efficiency Generation and Release of Singlet Oxygen

Zuo

Guan

et al. 2021

ACS Appl. Mater. Interfaces

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In the field of heterogeneous catalysis, limitations of the surface reaction process inevitably make improving the catalytic efficiency to remove pollutants in water a major challenge. Here, we report a unique structure of Fe surface-gradient-doped CuO that improves the overall catalytic processes of adsorption, electron transfer, and desorption. Interestingly, gradient doping leads to an imbalanced charge distribution in the crystal structure, thereby promoting the adsorption and electron transport efficiency of peroxymonosulfate (PMS). The orbital hybridization of Fe also improves the electronic activity. More importantly, the occupied d-orbital distribution is closer to the lower energy level, which improves the desorption of the reaction intermediate ( 1 O 2 ). As a result, the production and desorption of 1 O 2 have been improved, resulting in excellent BPA degradation ability (kinetic rate increased by 67.3 times). Two-dimensional infrared correlation spectroscopy is used to better understand the doping process and catalytic mechanism of Fe-CuO. Fe−O changes before Cu−O and is more active. The Fe-required active sites, active species intensity, and kinetic reaction rates show a good correlation. This research provides a scientific basis for expanding the purification of toxic organic pollutants in complex water environments by heterogeneous catalytic oxidation.

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“…Due to their low molecular weight and high solubility in water, these compounds can infiltrate and stay in plant tissues for several weeks after application 1 . They might also diffuse, accumulate, and persist in soil for up to 19 years and/or contaminate surface and ground water, fruits and vegetables, and bovine milk 4 . Human exposure to neonicotinoids occurs through ingestion of contaminated food and water, dermal absorption of the chemicals, and inhalation of contaminated particulates, vapors, or aerosols 5 …”

Section: Introductionmentioning

confidence: 99%

“…1 They might also diffuse, accumulate, and persist in soil for up to 19 years and/or contaminate surface and ground water, fruits and vegetables, and bovine milk. 4 Human exposure to neonicotinoids occurs through ingestion of contaminated food and water, dermal absorption of the chemicals, and inhalation of contaminated particulates, vapors, or aerosols. 5 Despite their harmful effects to honeybees, neonicotinoids have been considered safe in mammals and are being used as replacements to organophosphate pesticides, carbamates, and pyrethroids.…”

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confidence: 99%

Exposure to neonicotinoids and serum testosterone in men, women, and children

Mendy

Pinney

2022

Environmental Toxicology

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Neonicotinoids are the most used pesticides in the world and, despite being harmful to honeybees, they are considered safe for mammals. However, they have been associated with decreasing testosterone levels in several experimental animal models. In the present study, we aimed to determine the association of urinary neonicotinoids with serum testosterone in humans. We analyzed data on 2014 male and female participants to the National Health and Nutrition Examination Survey conducted between 2015 and 2016 aged 6 or older. In linear regression adjusted for age and potential confounders, serum total testosterone was 37.78% lower with 10‐fold increase in urinary total neonicotinoids (95% CI: −58.82, −6.00), 20.81% lower with 10‐fold increase in urinary 5‐hydroxy‐imidacloprid (95% CI: −34.94, −3.62) and 25.01% lower with 10‐fold increase in urinary n‐desmethyl‐acetamiprid (95% CI: −39.80, −6.58) among males. Serum free androgen index (FAI) was also decreased with higher urinary n‐desmethyl‐acetamiprid. In females, serum total testosterone was 32.91% lower with 10‐fold increase in urinary total neonicotinoids (95% CI: −54.93, −0.13), 21.32% lower with 10‐fold increase in urinary 5‐hydroxy‐imidacloprid (95% CI: −29.31, −12.42) and 15.42% lower with urinary detection of 5‐hydroxy‐imidacloprid (95% CI: −22.80, −7.34). FAI was likewise reduced with higher urinary levels of 5‐hydroxy‐imidacloprid and N‐desmethyl‐acetamiprid. In conclusion, this study using a sample representative of the US population is the first to report that exposure to neonicotinoids is associated with decreased serum testosterone levels in humans. However, future prospective studies are warranted to confirm these findings.

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Contamination of neonicotinoid insecticides in soil-water-sediment systems of the urban and rural areas in a rapidly developing region: Guangzhou, South China

Cited by 107 publications

References 51 publications

Determination of Pesticide Residues in Agricultural Soil Samples Collected from Sinai and Ismailia Governorates, Egypt

Determination of Pesticide Residues in Agricultural Soil Samples Collected from Sinai and Ismailia Governorates, Egypt

Tailored d-Band Facilitating in Fe Gradient Doping CuO Boosts Peroxymonosulfate Activation for High Efficiency Generation and Release of Singlet Oxygen

Exposure to neonicotinoids and serum testosterone in men, women, and children

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