| SVOBODOVÁ, Markéta, Klára ŠMÍDOVÁ, Martina HVĚZDOVÁ a Jakub HOFMAN. Uptake kinetics of pesticides chlorpyrifos and tebuconazole in the earthworm &ITEisenia andrei&IT in two different soils. Environmental Pollution. OXFORD, OXON, ENGLAND: ELSEVIER SCI LTD, 2018, roč. 236, May, s. 257-264. ISSN 0269-7491. Dostupné z: https://dx.doi.org/10.1016/j.envpol.2018.01.082. |
Další formáty:
BibTeX
LaTeX
RIS
@article{1419177,
author = {Svobodová, Markéta and Šmídová, Klára and Hvězdová, Martina and Hofman, Jakub},
article_location = {OXFORD, OXON, ENGLAND},
article_number = {May},
doi = {http://dx.doi.org/10.1016/j.envpol.2018.01.082},
keywords = {Currently used pesticides; Bioaccumulation; Toxicokinetics; Eisenia andrei; Soil; Chlorpyrifos; Tebuconazole},
language = {eng},
issn = {0269-7491},
journal = {Environmental Pollution},
title = {Uptake kinetics of pesticides chlorpyrifos and tebuconazole in the earthworm &ITEisenia andrei&IT in two different soils},
url = {https://www.sciencedirect.com/science/article/pii/S0269749117344755?via%3Dihub},
volume = {236},
year = {2018}
}
TY - JOUR
ID - 1419177
AU - Svobodová, Markéta - Šmídová, Klára - Hvězdová, Martina - Hofman, Jakub
PY - 2018
TI - Uptake kinetics of pesticides chlorpyrifos and tebuconazole in the earthworm &ITEisenia andrei&IT in two different soils
JF - Environmental Pollution
VL - 236
IS - May
SP - 257-264
EP - 257-264
PB - ELSEVIER SCI LTD
SN - 02697491
KW - Currently used pesticides
KW - Bioaccumulation
KW - Toxicokinetics
KW - Eisenia andrei
KW - Soil
KW - Chlorpyrifos
KW - Tebuconazole
UR - https://www.sciencedirect.com/science/article/pii/S0269749117344755?via%3Dihub
L2 - https://www.sciencedirect.com/science/article/pii/S0269749117344755?via%3Dihub
N2 - Agriculture is today indispensably connected with enormous use of pesticides. Despite tough regulation, their entrance into soil cannot be excluded and they might enter soil organisms and plants and continue further to terrestrial food chains. This study was conducted to investigate the bioaccumulation of two pesticides currently used in large amounts, the insecticide chlorpyrifos (CLP) and the fungicide tebuconazole (TBZ). Their detailed uptake kinetics in the model earthworm species Eisenia andrei were measured in two arable soils differing in organic carbon content (1.02 and 1.93% respectively). According to our results, a steady state was reached after 3-5 days for both pesticides and soils. The values of bioaccumulation factors calculated at the steady state ranged from 4.5 to 6.3 for CLP and 2.2-13.1 for TBZ. Bioaccumulation factors were also calculated as the ratio of uptake and elimination rate constants with results comparable with steady-state bioaccumulation factors. The results suggested that the degradation and bioaccumulation of tested compounds might be influenced by other factors than only total organic carbon (e.g. clay content). The lower K-oc and hydrophobicity of TBZ relative to CLP probably led to higher availability of TBZ through pore water exposure. On the other hand, CLP's higher hydrophobicity probably caused an increase in availability by its additional uptake via ingestion. To enable a proper ecological risk assessment of current pesticides in soils, it is necessary to accurately determine their bioaccumulation in soil invertebrates. We believe that our study not only brings such information for two specific pesticides but also addresses key methodological issues in this area.
ER -
SVOBODOVÁ, Markéta, Klára ŠMÍDOVÁ, Martina HVĚZDOVÁ a Jakub HOFMAN. Uptake kinetics of pesticides chlorpyrifos and tebuconazole in the earthworm \&{}amp;ITEisenia andrei\&{}amp;IT in two different soils. \textit{Environmental Pollution}. OXFORD, OXON, ENGLAND: ELSEVIER SCI LTD, 2018, roč.~236, May, s.~257-264. ISSN~0269-7491. Dostupné z: https://dx.doi.org/10.1016/j.envpol.2018.01.082.
|
