Abstract
Carbofuran (2,3-dihydro-2,2-dimethyl-7-benzofuranyl methylcarbamate) is a
toxic insecticide widely used on potato (Solanum tuberosum L.) crops in
Carchi Province, Ecuador. Carbofuran can leach to groundwater and become
a threat for both human health and the environment. To determine the extent
of carbofuran presence in the area, we sampled soil leachate, groundwater,
and surface water from within 14 hydrologie units (each 2.5-20 ha) where
potato was being grown from September to November 1999. Carbofuran was
found in all hydrologie units except one, at concentrations that were inversely proportional to the organic matter content of the predominant soil
type. A simulation study showed that the Leaching Estimation and Chemistry
Model (LEACHM) could be a valuable tool for evaluating carbofuran fate,
because it was shown to correctly identify soil types with the greatest risk
for leaching.
toxic insecticide widely used on potato (Solanum tuberosum L.) crops in
Carchi Province, Ecuador. Carbofuran can leach to groundwater and become
a threat for both human health and the environment. To determine the extent
of carbofuran presence in the area, we sampled soil leachate, groundwater,
and surface water from within 14 hydrologie units (each 2.5-20 ha) where
potato was being grown from September to November 1999. Carbofuran was
found in all hydrologie units except one, at concentrations that were inversely proportional to the organic matter content of the predominant soil
type. A simulation study showed that the Leaching Estimation and Chemistry
Model (LEACHM) could be a valuable tool for evaluating carbofuran fate,
because it was shown to correctly identify soil types with the greatest risk
for leaching.
| Original language | English |
|---|---|
| Title of host publication | CIP Program Report 1999-2000 |
| Pages | 355-360 |
| Publication status | Published - 2001 |
| Externally published | Yes |