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@article{1548896,
author = {SilvaandBarni, Maria Florencia and Smedes, Foppe and Fillmann, Gilberto and Miglioranza, Karina Silvia Beatriz},
article_location = {HOBOKEN},
article_number = {2},
doi = {http://dx.doi.org/10.1002/etc.4325},
keywords = {Passive sampler; Watershed analysis; Pesticides; Polychlorinated biphenyls; Argentina},
language = {eng},
issn = {0730-7268},
journal = {Environmental Toxicology and Chemistry},
title = {Passive sampling of pesticides and polychlorinated biphenyls along the Quequen Grande River watershed, Argentina},
url = {https://setac.onlinelibrary.wiley.com/doi/full/10.1002/etc.4325},
volume = {38},
year = {2019}
}
TY - JOUR
ID - 1548896
AU - Silva-Barni, Maria Florencia - Smedes, Foppe - Fillmann, Gilberto - Miglioranza, Karina Silvia Beatriz
PY - 2019
TI - Passive sampling of pesticides and polychlorinated biphenyls along the Quequen Grande River watershed, Argentina
JF - Environmental Toxicology and Chemistry
VL - 38
IS - 2
SP - 340-349
EP - 340-349
PB - Wiley
SN - 07307268
KW - Passive sampler
KW - Watershed analysis
KW - Pesticides
KW - Polychlorinated biphenyls
KW - Argentina
UR - https://setac.onlinelibrary.wiley.com/doi/full/10.1002/etc.4325
L2 - https://setac.onlinelibrary.wiley.com/doi/full/10.1002/etc.4325
N2 - Water monitoring is of great importance, especially for water bodies in agricultural or industrial areas. Grab sampling is a widely used technique for aquatic monitoring but represents only a snapshot of the contaminant levels at a specific point in time. Passive sampling, on the other hand, is an integrative technique that provides an average concentration of contaminants representative of its deployment period. Thus, the current contamination by organochlorine pesticides, polychlorinated biphenyls (PCBs), and some currently used pesticides was assessed along the Quequen Grande River watershed (Argentina) using the integrative silicone rubber passive sampling technique in a year-long study. Silicone rubber samplers were deployed at 6 sampling sites selected according to different land uses (agricultural-livestock production, agricultural and urban activities) during 3 periods in 2014 and 2015. The organochlorine pesticides were dominated by endosulfan (sum of alpha-, beta-endosulfan, endosulfan sulfate = 0.15-23.4 ng/L). The highest endosulfan levels were registered during the pesticide application period (December-March), exceeding the international water quality guidelines for protecting freshwater biota (3 ng/L). Compared with previous reports, no reductions in endosulfan levels were observed at the Quequen Grande River watershed. These results would suggest the illegal use of remaining stocks because water sampling was carried out after endosulfan was banned in Argentina. Chlorpyrifos was the second major pesticide found in water (0.02-4.3 ng/L), associated with its widespread usage on soybean crops. A reduction in levels of legacy pesticides (heptachlors, DDTs, dieldrin, and chlordanes) was evident compared with previous reports from 2007. Levels of PCBs were very low, indicating that probably only minor diffuse sources were still available along the Quequen Grande River watershed. Environ Toxicol Chem 2019;38:340-349.
ER -
SILVA-BARNI, Maria Florencia, Foppe SMEDES, Gilberto FILLMANN a Karina Silvia Beatriz MIGLIORANZA. Passive sampling of pesticides and polychlorinated biphenyls along the Quequen Grande River watershed, Argentina. \textit{Environmental Toxicology and Chemistry}. HOBOKEN: Wiley, 2019, roč.~38, č.~2, s.~340-349. ISSN~0730-7268. Dostupné z: https://dx.doi.org/10.1002/etc.4325.
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