Monitoring of Atrazine Pollution and its Spatial-Seasonal Variation on Surface Water Sources of an Agricultural River Basin

Bachetti, Romina; Urseler, Noelia; Morgante, Verónica; Damilano, Gabriela; Porporatto, Carina; Agostini, Elizabeth; Morgante, Carolina

doi:10.1007/s00128-021-03264-x

Cited by 43 publications

(15 citation statements)

References 16 publications

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“…Variação espacial na contaminação pode ocorrer devido a diferenças nas fontes pontuais e difusas de descargas industriais, agrícolas e urbanas bem como na capacidade de diluição e autodepuração. (BACHETTI et al, 2021). A presença de cádmio em ambos os pontos e somente na coleta de novembro sugere variação v.21 n.4 2022 temporal na contaminação das águas do Delta do Jacuí.…”

Section: Resultsunclassified

Análise de metais e avaliação da citogenotoxicidade da água do Delta do Rio Jacuí, Rio Grande do Sul

Silva

Reis²,

Morales³

et al. 2023

Revista Thema

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O Delta do Rio Jacuí é impactado por atividades industriais, urbanas e agrícolas. Neste contexto, o objetivo do estudo foi avaliar a presença de metais e a citogenotoxicidade da água em dois pontos do Delta do Jacuí. Amostras de água foram coletadas, em dois períodos diferentes, em dois pontos localizados na Ilha do Pavão. Os metais analisados foram alumínio, cádmio, chumbo, cobre, cromo total, manganês, níquel e zinco. A citogenotoxicidade foi avaliada em células de raízes de Allium cepa, após exposição dos bulbos às amostras de água e ao controle negativo, por 48h. Os metais detectados foram alumínio e cádmio em concentrações acima do limite e zinco em acordo com a legislação. Índice mitótico e frequência de micronúcleos nas células de cebola não apresentaram diferenças significativas entre os tratamentos. Foi observado aumento significativo na frequência de anormalidades cromossômicas nas cebolas expostas a uma das amostras de água. Os resultados sugerem contaminação permanente da água por alumínio, variação temporal para cádmio e variação espacial para zinco, bem como variação espaço-temporal na contaminação genotóxica da água do Delta do Jacuí na região da Ilha do Pavão. Palavras-chave: Qualidade da água; bioensaios; ecotoxicologia.

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Section: Resultsunclassified

Análise de metais e avaliação da citogenotoxicidade da água do Delta do Rio Jacuí, Rio Grande do Sul

Silva

Reis²,

Morales³

et al. 2023

Revista Thema

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“…Atrazine is a heavily used herbicide in the US corn belt, including Iowa [ 20 ]. It can enter groundwater and surface water through runoff and leaching [ 50 , 51 ]. Atrazine exposure has been linked to an increased risk of certain cancers, as well as reproductive and developmental problems [ 26 , 27 ].…”

Section: Discussionmentioning

confidence: 99%

“…Over three million pounds of atrazine was used annually in 1992–2012 in Iowa [ 43 , 44 ]. In the treated PWS water derived from surface water, atrazine detections were most prevalent in the south-central region and in late spring and early summer, resulting from atrazine applications and runoff following rainfall events in these seasons [ 50 ]. There was a strong correlation between atrazine concentrations in runoff and stream water [ 57 ].…”

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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“…However, only a small part of the applied herbicides can be effectively used, and the remaining nearly 70% will enter the aqueous system through rainfall, irrigation, surface or underground runoff [4]. In recent years, triazine herbicides have been frequently detected in surface water and coastal seawater in many countries [5][6][7]. Due to the 1,3,5-triazine ring (C 3 N 3 ) structure in their molecules, triazine herbicides have the characteristics of stable chemical property and long half-life [3,8].…”

Section: Introductionmentioning

confidence: 99%

Construction of a New Response Index for Sensitive Detection of the Toxicity of Photosynthetic Inhibitory Herbicides to Photosynthesis of <i>Chlorella pyrenoidosa</i> Based on Change Characteristics of Chlorophyll Fluorescence Rise Kinetics Curve

Gan¹,

Zhao²,

Yin³

et al. 2023

Pol. J. Environ. Stud.

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Photosynthetic inhibitory herbicides widely used to control weeds, such as triazine herbicides, will have toxic effects on the photosynthesis of microalgae once entering aquatic environment, thus posing serious threats to the ecological balance of aquatic systems. However, at present, in terms of toxicity detection of triazine herbicides to microalgal photosynthesis, the commonly used photosynthetic fluorescence parameters such as the maximum photochemical quantum yield of photosystem II (F V /F M ) and performance index (PI ABS ) are not sensitive enough in response to the toxicity of triazine herbicides. In order to seek for a suitable response index which can be used to rapidly and sensitively predict the toxicity of triazine herbicides to the photosynthesis of microalgae, in this study, a common freshwater microalgae Chlorella pyrenoidosa was used as the test organism, and the impacts of four triazine herbicides atrazine, terbuthylazine, propazine and simazine on the chlorophyll fluorescence rise kinetics (OJIP) curve of C. pyrenoidosa were first investigated. On this basis, a novel photosynthetic response index (PI) for detecting the toxicity of triazine herbicides was successfully constructed according to the change characteristics of OJIP curve of exposed C. pyrenoidosa, then its response performance to triazine herbicide toxicity was further verified. The results indicate that the significant changes in OJIP curves of exposed C. pyrenoidosa compared with the control were mainly caused by the increases

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Monitoring of Atrazine Pollution and its Spatial-Seasonal Variation on Surface Water Sources of an Agricultural River Basin

Cited by 43 publications

References 16 publications

Análise de metais e avaliação da citogenotoxicidade da água do Delta do Rio Jacuí, Rio Grande do Sul

Análise de metais e avaliação da citogenotoxicidade da água do Delta do Rio Jacuí, Rio Grande do Sul

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

Construction of a New Response Index for Sensitive Detection of the Toxicity of Photosynthetic Inhibitory Herbicides to Photosynthesis of <i>Chlorella pyrenoidosa</i> Based on Change Characteristics of Chlorophyll Fluorescence Rise Kinetics Curve

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