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Liability of groundwater and depth of soil to contamination by pesticides and other organic xenobiotics: Two case histories
Year:
1993
Source of publication :
Water Science and Technology
Authors :
Bir, Lena
;
.
Muszkat, Lea
;
.
Raucher, Daniel
;
.
Volume :
27
Co-Authors:
Muszkat, L., Department of Pesticides Chemistry, Volcani Center, Bet Dagan 50250, Israel
Raucher, D., Department of Pesticides Chemistry, Volcani Center, Bet Dagan 50250, Israel
Bir, L., Department of Pesticides Chemistry, Volcani Center, Bet Dagan 50250, Israel
Magaritz, M., Department of Pesticides Chemistry, Volcani Center, Bet Dagan 50250, Israel
Ronen, D., Department of Pesticides Chemistry, Volcani Center, Bet Dagan 50250, Israel
Facilitators :
From page:
203
To page:
212
(
Total pages:
10
)
Abstract:
We discuss the penetration of organic pollutants into the depth of soil and into groundwater under different environmental and geological conditions. In one case a field study was conducted on the impact of prolonged irrigation by effluents on groundwater and vadose zone contamination. The studied site was rich in sandy soil which allowed vertical penetration of pollutants into the depth. A significant difference has been observed in the distribution of organic pollutants in the effluent irrigated site, where the pollution increased markedly while descending from the top soil into the unsaturated zone, compared to the two control sites, where the extent of pollution decreased strongly with the depth. It seems that detergents and other surfactants present in the effluents strongly enhance the transport of organic components via the unsaturated zone. The second case study deals with the transport of organic pollutants in a site where the subsoil is interspaced with clay layers. In this case groundwater pollution derived from the chemical waste of a pesticides plant. A long term follow up of groundwater pollution indicates that the typical contaminant distribution pattern remained unchanged during the years. The pollutants distribution indicates that in this area the penetration of organic pollutants does not occur vertically but rather by horizontal flow, due to inhibition of vertical migration by a thick clay layer present in this area.We discuss the penetration of organic pollutants into the depth of soil and into groundwater under different environmental and geological conditions. In one case a field study was conducted on the impact of prolonged irrigation by effluents on groundwater and vadose zone contamination. The studied site was rich in sandy soil which allowed vertical penetration of pollutants into the depth. A significant difference has been observed in the distribution of organic pollutants in the effluent irrigated site, where the pollution increased markedly while descending from the top soil into the unsaturated zone, compared to the two control sites, where the extent of pollution decreased strongly with the depth. It seems that detergents and other surfactants present in the effluents strongly enhance the transport of organic components via the unsaturated zone. The second case study deals with the transport of organic pollutants in a site where the subsoil is interspaced with clay layers. In this case groundwater pollution derived from the chemical waste of a pesticides plant. A long term follow up of groundwater pollution indicates that the typical contaminant distribution pattern remained unchanged during the years. The pollutants distribution indicates that in this area the penetration of organic pollutants does not occur vertically but rather by horizontal flow, due to inhibition of vertical migration by a thick clay layer present in this area.
Note:
Related Files :
Agriculture
Conference paper
Gas Chromatography
Geology
Ground Water
irrigation
soil
soil pollution
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Related Content
More details
DOI :
Article number:
Affiliations:
Database:
Scopus
Publication Type:
Conference paper
;
.
Language:
English
Editors' remarks:
ID:
28696
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:41
Scientific Publication
Liability of groundwater and depth of soil to contamination by pesticides and other organic xenobiotics: Two case histories
27
Muszkat, L., Department of Pesticides Chemistry, Volcani Center, Bet Dagan 50250, Israel
Raucher, D., Department of Pesticides Chemistry, Volcani Center, Bet Dagan 50250, Israel
Bir, L., Department of Pesticides Chemistry, Volcani Center, Bet Dagan 50250, Israel
Magaritz, M., Department of Pesticides Chemistry, Volcani Center, Bet Dagan 50250, Israel
Ronen, D., Department of Pesticides Chemistry, Volcani Center, Bet Dagan 50250, Israel
Liability of groundwater and depth of soil to contamination by pesticides and other organic xenobiotics: Two case histories
We discuss the penetration of organic pollutants into the depth of soil and into groundwater under different environmental and geological conditions. In one case a field study was conducted on the impact of prolonged irrigation by effluents on groundwater and vadose zone contamination. The studied site was rich in sandy soil which allowed vertical penetration of pollutants into the depth. A significant difference has been observed in the distribution of organic pollutants in the effluent irrigated site, where the pollution increased markedly while descending from the top soil into the unsaturated zone, compared to the two control sites, where the extent of pollution decreased strongly with the depth. It seems that detergents and other surfactants present in the effluents strongly enhance the transport of organic components via the unsaturated zone. The second case study deals with the transport of organic pollutants in a site where the subsoil is interspaced with clay layers. In this case groundwater pollution derived from the chemical waste of a pesticides plant. A long term follow up of groundwater pollution indicates that the typical contaminant distribution pattern remained unchanged during the years. The pollutants distribution indicates that in this area the penetration of organic pollutants does not occur vertically but rather by horizontal flow, due to inhibition of vertical migration by a thick clay layer present in this area.We discuss the penetration of organic pollutants into the depth of soil and into groundwater under different environmental and geological conditions. In one case a field study was conducted on the impact of prolonged irrigation by effluents on groundwater and vadose zone contamination. The studied site was rich in sandy soil which allowed vertical penetration of pollutants into the depth. A significant difference has been observed in the distribution of organic pollutants in the effluent irrigated site, where the pollution increased markedly while descending from the top soil into the unsaturated zone, compared to the two control sites, where the extent of pollution decreased strongly with the depth. It seems that detergents and other surfactants present in the effluents strongly enhance the transport of organic components via the unsaturated zone. The second case study deals with the transport of organic pollutants in a site where the subsoil is interspaced with clay layers. In this case groundwater pollution derived from the chemical waste of a pesticides plant. A long term follow up of groundwater pollution indicates that the typical contaminant distribution pattern remained unchanged during the years. The pollutants distribution indicates that in this area the penetration of organic pollutants does not occur vertically but rather by horizontal flow, due to inhibition of vertical migration by a thick clay layer present in this area.
Scientific Publication
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