Use of Chemcatcher passive sampler as a watershed-investigation tool to assess first flush polar pesticide pollution in an Eastern Mediterranean River basin

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12520%2F25%3A43910043" target="_blank" >RIV/60076658:12520/25:43910043 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.jenvman.2025.127234" target="_blank" >https://doi.org/10.1016/j.jenvman.2025.127234</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jenvman.2025.127234" target="_blank" >10.1016/j.jenvman.2025.127234</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Use of Chemcatcher passive sampler as a watershed-investigation tool to assess first flush polar pesticide pollution in an Eastern Mediterranean River basin

Popis výsledku v původním jazyce

Characterizing first flush pesticide contamination in ephemeral streams within Mediterranean climates poses significant challenges. Quantifying spatial and temporal differences in chemical pollutants is critical to designing strategic watershed-based restoration plans aimed at protecting aquatic ecosystems. In regions with extended dry periods and intensive agricultural activities, new innovative water quality monitoring methods are needed. This study investigated the efficacy of the Chemcatcher passive sampler as a viable complementary method for assessing pesticide concentrations throughout the Kishon river basin, north-west Israel. A new Chemcatcher deployment apparatus was used in 19 tributaries at 25 watershed locations to capture the first winter storm runoff events. Polar pesticides were identified and quantified using a novel LC/MS targeted and non-targeted screening workflow, identifying 120 compounds, including fungicides, herbicides, insecticides, and their metabolites and quantifying 84 compounds. Time-weighted average concentrations ranged from sub-nanogram per liter to &gt;1800 ng L-1. Pesticide concentrations were positively correlated with agricultural land use categories. Results showed the importance of capturing first flush storm flows, revealing some sites with exceedingly high cumulative concentrations (&gt;2500 ng L-1). Diuron, 2,4-D, imidacloprid and tebuconazole were detected at all sites. Multivariate statistical analysis identified pesticides that posed a risk within the catchment. Concentrations of bromacil, diuron, fenamiphos, imidacloprid, and methoxyfenozide were classified as very high risk, based on their probable no-effect concentrations. This study demonstrates a new method for using passive sampling to monitor first flush stormwaters in ephemeral streams and defines a strategic catchment sampling approach for Mediterranean catchments, with new analytic and statistical tools, to advance informed watershed management decision-making.

Název v anglickém jazyce

Use of Chemcatcher passive sampler as a watershed-investigation tool to assess first flush polar pesticide pollution in an Eastern Mediterranean River basin

Popis výsledku anglicky

Characterizing first flush pesticide contamination in ephemeral streams within Mediterranean climates poses significant challenges. Quantifying spatial and temporal differences in chemical pollutants is critical to designing strategic watershed-based restoration plans aimed at protecting aquatic ecosystems. In regions with extended dry periods and intensive agricultural activities, new innovative water quality monitoring methods are needed. This study investigated the efficacy of the Chemcatcher passive sampler as a viable complementary method for assessing pesticide concentrations throughout the Kishon river basin, north-west Israel. A new Chemcatcher deployment apparatus was used in 19 tributaries at 25 watershed locations to capture the first winter storm runoff events. Polar pesticides were identified and quantified using a novel LC/MS targeted and non-targeted screening workflow, identifying 120 compounds, including fungicides, herbicides, insecticides, and their metabolites and quantifying 84 compounds. Time-weighted average concentrations ranged from sub-nanogram per liter to &gt;1800 ng L-1. Pesticide concentrations were positively correlated with agricultural land use categories. Results showed the importance of capturing first flush storm flows, revealing some sites with exceedingly high cumulative concentrations (&gt;2500 ng L-1). Diuron, 2,4-D, imidacloprid and tebuconazole were detected at all sites. Multivariate statistical analysis identified pesticides that posed a risk within the catchment. Concentrations of bromacil, diuron, fenamiphos, imidacloprid, and methoxyfenozide were classified as very high risk, based on their probable no-effect concentrations. This study demonstrates a new method for using passive sampling to monitor first flush stormwaters in ephemeral streams and defines a strategic catchment sampling approach for Mediterranean catchments, with new analytic and statistical tools, to advance informed watershed management decision-making.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10511 - Environmental sciences (social aspects to be 5.7)

Projekt

<a href="/cs/project/GX20-04676X" target="_blank" >GX20-04676X: Holistická charakterizace expozice a potenciálních účinků komplexních směsí chemických látek ve vodním prostředí</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Environmental Management

ISSN

0301-4797

e-ISSN

1095-8630

Svazek periodika

394

Číslo periodika v rámci svazku

neuvedeno

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

17

Strana od-do

nestránkováno

Kód UT WoS článku

001574013800001

EID výsledku v databázi Scopus

2-s2.0-105015472621