Sorpcia herbicídov v pôdach a možné riziko kontaminácie podzemných vôd

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Title:Sorpcia herbicídov v pôdach a možné riziko kontaminácie podzemných vôd
Creators:
Hiller, Edgar; hiller at fns dot uniba dot sk; Univerzita Komenského, Prírodovedecká fakulta, Katedra geochémie, Mlynská dolina, 842 15 Bratislava, Slovenská republika
Krascsenits, Zoltán; Národné referenčné laboratórium, Výskumný ústav vodného hospodárstva, Nábr. L. Svobodu 5, 812 49 Bratislava 1, Slovenská republika
Kútnik, Pavol; Oddelenie podzemných vôd a ich ochrana, Výskumný ústav vodného hospodárstva, Nábr. L. Svobodu 5, 812 49 Bratislava 1, Slovenská republika
Zemanová, Lenka; Univerzita Komenského, Prírodovedecká fakulta, Katedra geochémie, Mlynská dolina, 842 15 Bratislava, Slovenská republika
Journal or Publication Title:
Journal of Hydrology and Hydromechanics, 53, 3, pp. 177-192
Uncontrolled Keywords:Sorption, Herbicide, Contamination, Groundwater, Soil

Abstract

Sorption of herbicides (acetochlor, atrazine, 2,4-D-DMA, chlorotoluron, MCPA and trifluralin) in six soils was evaluated. Among herbicides studied, dissociable herbicides (MCPA and 2,4-D-DMA) were the least sorbed, whereas nonionic herbicides were the most sorbed (acetochlor < chlorotoluron < trifluralin). The distribution coefficient values KD and equilibrium sorbed amounts positively correlated with soil organic carbon content for all herbicides except MCPA. Moreover, all herbicides except MCPA were the most sorbed in the Vertisoil (SA) with relatively high content of expanding clay minerals in proportion to organic carbon content. Organic carbon - water distribution coefficient values KOC for each herbicide showed a smaller variation among soils used except the SA soil than distribution coefficients KD. To estimate potential risk of groundwater contamination by herbicides investigated, measured KOC and treshold GUS values (Groundwater Ubiquity Score) were used to calculate half-lives t1/2 that would rank herbicides as potentially hazardous and non-hazardous. Comparison of calculated t1/2 values to published was found that atrazine and MCPA could be considered hazardous herbicides, trifluralin non-hazardous herbicide and acetochlor, 2,4-D and chlorotoluron could be hazardous or non-hazardous, depending on soil type. Presented analysis was also in line with risk assessment of groundwater contamination according to EPA (Environmental Protection Agency) criterion.

Official URL: http://147.213.145.2/vc/vc1.asp

Title:Sorpcia herbicídov v pôdach a možné riziko kontaminácie podzemných vôd
Translated title:Sorption of herbicides in soils and potential risk of groundwater contamination
Creators:
Hiller, Edgar; hiller at fns dot uniba dot sk; Univerzita Komenského, Prírodovedecká fakulta, Katedra geochémie, Mlynská dolina, 842 15 Bratislava, Slovenská republika
Krascsenits, Zoltán; Národné referenčné laboratórium, Výskumný ústav vodného hospodárstva, Nábr. L. Svobodu 5, 812 49 Bratislava 1, Slovenská republika
Kútnik, Pavol; Oddelenie podzemných vôd a ich ochrana, Výskumný ústav vodného hospodárstva, Nábr. L. Svobodu 5, 812 49 Bratislava 1, Slovenská republika
Zemanová, Lenka; Univerzita Komenského, Prírodovedecká fakulta, Katedra geochémie, Mlynská dolina, 842 15 Bratislava, Slovenská republika
Uncontrolled Keywords:Sorption, Herbicide, Contamination, Groundwater, Soil
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
Divisions:Mathematics, Physics and Earth Sciences > Institute of Hydrodynamics > Journal of Hydrology and Hydromechanics
Journal or Publication Title:Journal of Hydrology and Hydromechanics
Volume:53
Number:3
Page Range:pp. 177-192
ISSN:0042-790X
Publisher:Institute of Hydrology of the Slovak Academy of Sciences and the Institute of Hydrodynamics of the Academy of Sciences of the Czech Republic
Related URLs:
URLURL Type
http://avi.lib.cas.cz/node/55Publisher
ID Code:6011
Item Type:Article
Deposited On:15 Jun 2010 12:21
Last Modified:15 Jun 2010 10:21

Citation

Hiller, Edgar; Krascsenits, Zoltán; Kútnik, Pavol; Zemanová, Lenka (2005) Sorpcia herbicídov v pôdach a možné riziko kontaminácie podzemných vôd. Journal of Hydrology and Hydromechanics, 53 (3). pp. 177-192. ISSN 0042-790X

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