Seasonal variations in atrazine degradation in a typical semienclosed bay of the northwest Pacific ocean

Wang, Zihan; Ouyang, Wei; Tysklind, Mats; Lin, Chunye; Wang, Baodong

doi:10.1016/j.envpol.2021.117072

Cited by 18 publications

(7 citation statements)

References 56 publications

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“…In this study, we found that atrazine metabolites were frequently detected in the groundwater. DEA was more prevalent than DIA in both private well water and PWS water, as DEA is the dominant degradation product of atrazine and more stable than DIA [ 76 , 77 , 78 ]. Only atrazine is regulated currently; neither DEA nor DIA have MCLs.…”

Section: Discussionmentioning

confidence: 99%

Characterization of Arsenic and Atrazine Contaminations in Drinking Water in Iowa: A Public Health Concern

Roh

Knappett

Han

et al. 2023

IJERPH

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Arsenic and atrazine are two water contaminants of high public health concern in Iowa. The occurrence of arsenic and atrazine in drinking water from Iowa’s private wells and public water systems was investigated over several decades. In this study, the percentages of detection and violation of regulations were compared over region, season, and water source, and factors affecting the detection and concentration of arsenic and atrazine were analyzed using a mixed-effects model. Atrazine contamination in drinking water was found to vary by region, depending on agricultural usage patterns and hydrogeological features. The annual median atrazine levels of all public water systems were below the drinking water standard of 3 ppb in 2001–2014. Around 40% of public water systems contained arsenic at levels > 1 ppb in 2014, with 13.8% containing arsenic at levels of 5–10 ppb and 2.6% exceeding 10 ppb. This unexpected result highlights the ongoing public health threat posed by arsenic in drinking water in Iowa, emphasizing the need for continued monitoring and mitigation efforts to reduce exposure and associated health risks. Additionally, an atrazine metabolite, desethylatrazine, should be monitored to obtain a complete account of atrazine exposure and possible health effects.

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Section: Discussionmentioning

confidence: 99%

Characterization of Arsenic and Atrazine Contaminations in Drinking Water in Iowa: A Public Health Concern

Roh

Knappett

Han

et al. 2023

IJERPH

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“…The relatively high temperature of these waters over the study period would have been conducive to the activation of microbial degradation of target herbicide residues [13,14]. Due to its hypereutrophication, these waters are anoxic during the day and supersaturated with oxygen at night [46].…”

Section: Discussionmentioning

confidence: 99%

“…Due to its hypereutrophication, these waters are anoxic during the day and supersaturated with oxygen at night [46]. The aerobic microbial degradation of these pesticide residues would therefore be slowed down in these waters during the day, but significant at night; opposite to the microbial anaerobic one [14]. However, the very high turbidity of these waters would have disadvantaged their degradation by photolysis in these waters, in particular those of SIZ [42,43] and, MTZ [47] over the study period.…”

Section: Discussionmentioning

confidence: 99%

“…The concentrations in the target herbicides residues of these waters would have been higher by their relative important inputs from the low inputs of meteorite waters in this season. However, this process would be obscured by the high biological activities in this season, favoured by the relative high temperature of these waters [13,14]. In GRS, the very significant leaching of the watershed of this aquatic ecosystem by meteorite waters would contribute to this situation, but to a lesser degree because of the dilution effects, due to the rise in water, as well as their renewal.…”

Section: Discussionmentioning

confidence: 99%

“…These reactions are influenced by many physical and biogeochemical parameters of these ecosystems (temperature, transparency, organic matter content, dissolved oxygen content, etc. ), as well as by the hydroclimate where they are located [13,14].…”

Section: Introductionmentioning

confidence: 99%

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Seasonal contamination level of the waters from the Déganobo lake system by fourteen herbicides residues and their ecological and health implication

Kouadio Fabrice Arthur KONAN,

Marcel Konan YAO

2023

GSC Adv. Res. Rev.

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The aim of this study was to assess the seasonal contamination level of the waters from the Déganobo lake system by 9 triazine herbicides and 5 substituted urea herbicides and, their ecological and risks implications. It was conducted during one year (from August 2021 to July 2022). The waters samples, collected monthly, were analysed according M.A. 403-Pest 3.1 standard with some modifications. The ecological and health risks were assessed by using the Directive 2013/39/EU, the MDDP water quality guidelines, the SEQ-Eau V2 water quality guidelines and, the Quotient Risk. Simazine was the herbicide residue the most important, whereas atrazine, chlorotuluron and, terbutryn were the least important in all season. Diuron, fenuron, monuron and, Terbuthylatrazine were not detected in these waters in all seasons. The hydroclimate, as well the temperature, transparency and, dissolved oxygen of these waters, were influenced significantly the seasonal dynamic of the herbicide residues detected in these waters. All the water quality guidelines used in this study and the quotient risk were highlighted the relative high pollution of these waters with likely severe health risks for its biota and for human in all season, because of its high seasonal concentrations in simazine.

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Occurrence, ecological risk, and advanced removal methods of herbicides in waters: a timely review

Li,

Wang,

Liu

et al. 2023

Environ Sci Pollut Res

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Seasonal variations in atrazine degradation in a typical semienclosed bay of the northwest Pacific ocean

Cited by 18 publications

References 56 publications

Characterization of Arsenic and Atrazine Contaminations in Drinking Water in Iowa: A Public Health Concern

Characterization of Arsenic and Atrazine Contaminations in Drinking Water in Iowa: A Public Health Concern

Seasonal contamination level of the waters from the Déganobo lake system by fourteen herbicides residues and their ecological and health implication

Occurrence, ecological risk, and advanced removal methods of herbicides in waters: a timely review

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