Pesticides in agricultural headwater streams in southwestern Germany and effects on macroinvertebrate populations

Weber, Gero; Christmann, Nicole; Thiery, Ann-Cathrin; Martens, D.; Kubiniok, Jochen

doi:10.1016/j.scitotenv.2017.11.155

Cited by 29 publications

(10 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Pollution of ecosystems is a serious problem worldwide. Herbicides are of frequent pollutants in surface and groundwaters with highest concentrations observed during runoff and after agricultural applications [1][2][3] .…”

mentioning

confidence: 99%

See 1 more Smart Citation

Effects of metazachlor and its major metabolite metazachlor OA on early life stages of marbled crayfish

Velíšek

Stará

Kubec

et al. 2020

Sci Rep

View full text Add to dashboard Cite

The effects of the herbicide metazachlor and its major metabolite metazachlor OA at two concentrations, including environmentally relevant concentrations of metazachlor (0.0115 µmol/l and 0.0790 µmol/l) and metazachlor OA (0.0117 µmol/l and 0.0805 µmol/l), respectively, were evaluated on early ontogeny, growth, behaviour, oxidative stress, antioxidant enzyme levels, histology, and mortality of marbled crayfish Procambarus virginalis. Both tested concentrations of metazachlor and metazachlor OA were associated with significantly lower growth and delayed ontogenetic development compared to controls. Exposure of metazachlor at 0.0115 µmol/l and metazachlor OA at 0.0117 µmol/l and 0.0805 µmol/l resulted in significantly lower activity of total superoxide dismutase (SOD), catalase (CAT), glutathione s-transferase (GST), glutathione reductase (GR), and reduced glutathione (GSH) compared with control and resulted in gill anomalies ranging from wall thinning to focal disintegration of branchial structure. Metazachlor at the environmentally relevant concentration of 0.0790 µmol/l was associated with significant alterations of crayfish distance moved and walking speed. The potential risk associated with metazachlor use in agriculture related to effects on non-target aquatic organisms.

show abstract

mentioning

confidence: 99%

“…The metabolites of metazachlor are among the common pollutants 13,15,16 . Metazachlor has been reported in waters at levels 0.1 μg/l −100 μg/l 3,10,11,[17][18][19] . Metazachlor OA and metazachlor ESA have been found in surface water Experimental animals.…”

mentioning

confidence: 99%

Effects of metazachlor and its major metabolite metazachlor OA on early life stages of marbled crayfish

Velíšek

Stará

Kubec

et al. 2020

Sci Rep

View full text Add to dashboard Cite

show abstract

“…Monitoring studies have shown that bentazone was rarely detected or was detected at very low concentrations in topsoil samples [ 9 , 10 ]. However, this compound was frequently detected in surface water samples (3–69%) at maximum concentrations from various studies of 0.04–0.701 μg/L [ 10 , 11 , 12 , 13 , 14 ]. Bentazone was less frequently detected in groundwater (14–32%), but its maximum concentrations were higher (0.29–10.6 μg/L) [ 15 , 16 , 17 ].…”

Section: Introductionmentioning

confidence: 99%

Modeling of Bentazone Leaching in Soils with Low Organic Matter Content

Paszko

Spadotto

2022

IJERPH

View full text Add to dashboard Cite

The aim of this study was to estimate bentazone’s potential to leach to groundwater in the Arenosols developed from sand, Luvisols developed from loamy sand or sandy loam, and Luvisols or Cambisols developed from loess, and to identify the major factors influencing bentazone’s fate in the soils. Potato and maize cultivations were simulated using the FOCUS PELMO 5.5.3 pesticide leaching model. The amount of bentazone reaching groundwater was highly sensitive to degradation parameters, water-holding capacity, evapotranspiration, organic carbon content, and pH. The highest bentazone concentrations in percolate were noted in Arenosols. The risk of bentazone concentration exceeding 0.1 μg/L was low only in Arenosols with high organic carbon content (3.0% for topsoil or higher). In Luvisols developed from loamy sand or sandy loam, the estimated bentazone concentrations in percolate were highly dependent on the climate. In Luvisols or Cambisols developed from loess, concentrations of >0.1 μg/L were the least likely due to the high water-holding capacity and high organic carbon content of these soils. The study also revealed that the FOCUS Hamburg scenario, representing the coarsest soils in the European Union with relatively low organic carbon content, does not reflect the leaching potential of Arenosols and Luvisols.

show abstract

“…ATZ is an agricultural herbicide widely used in the world and which has attracted the attention of the scienti c community due to its presence in environmental ecosystems (Wang et al 2016;Fernández-Domene et al 2018;Rodrigues et al 2018;Weber et al 2018). It is also listed as an emerging contaminant due to its resistance to natural degradation and when oxidized by unconventional processes it forms by-products that are also known to be toxic (Klementová et al 2019).…”

Section: Introductionmentioning

confidence: 99%

UV-Vis Spectrophotometry Coupled to Chemometric Analysis for the Evaluation of Atrazine Photolysis and Photocatalysis

Moreira

Lemos

Coelho

et al. 2021

Preprint

View full text Add to dashboard Cite

In this study, a spectrophotometric-chemometric (Spec-Chem) approach was applied as an alternative to chromatography to monitor ATZ and by-products after photolytic and photocatalytic oxidation aiming to unveil the ATZ degradation mechanism. Spec-Chem is an accessible, easy-to-operate, low-cost analytical approach to monitor atrazine (ATZ) and by-products and its applicability was validated by HPLC, the reference technique for the evaluation of pollutants degradation mechanisms. The chromatographic (DChro) and spectrophotometric (DSpec) data found 95% and 57% ATZ removal after 30 min, respectively, proving that the DSpec erroneously induces a 38% loss in removal efficiency. When DSpec was treated by Multivariate Curve Resolution (MCR) analysis for providing chemometric data (DChem), it found ATZ removal and hydroxyatrazine (HAT) formation statistically equal to DChro (t-test, p = 0.05). After unraveling the ATZ degradation mechanism using Spec-Chem, a new hypothesis for the kinetic calculation of ATZ degradation was presented, where the concentrations of ATZ and HAT were used to find k and R2 values representative for the ATZ degradation mechanism. The values found for k were compatible with the literature under similar conditions of ATZ degradation and the linear correlation coefficients (R2 = 0.99) showed an optimal fit for the proposed hypothesis. Thus, Spec-Chem was successfully applied to unravel the mechanism of photocatalytic degradation of ATZ in the presence of TiO2, while k was obtained by the new hypothesis proposed that considered ATZ and HAT concentration as parameters of kinect interest. Therefore, the importance of monitoring quantitatively ATZ and HAT were provided in this study, providing new information for the scientific community.

show abstract

Pesticides in agricultural headwater streams in southwestern Germany and effects on macroinvertebrate populations

Cited by 29 publications

References 26 publications

Effects of metazachlor and its major metabolite metazachlor OA on early life stages of marbled crayfish

Effects of metazachlor and its major metabolite metazachlor OA on early life stages of marbled crayfish

Modeling of Bentazone Leaching in Soils with Low Organic Matter Content

UV-Vis Spectrophotometry Coupled to Chemometric Analysis for the Evaluation of Atrazine Photolysis and Photocatalysis

Contact Info

Product

Resources

About