Use of pesticide simulation models for assessing pesticide contamination of surface and groundwater
Two field scale hydrologic and pesticide routing models, CREAMS (Chemicals, Runoff, and Erosion in Agricultural Management Systems) and PRZM (Pesticide Root Zone Model) were used to predict average pesticide concentrations in storm flow and unsaturated subsurface flow after application of forestry herbicides and insecticides. Forest regions in the mountain, Piedmont, and coastal plain physiographic provinces of the South provide important stream sources and groundwater recharge zones for municipal water supplies. Increasing use of herbicides and insecticides in forest management has raised concerns about maintaining future water quality. Thus tools for assessing potential contamination from pesticide use are needed. CREAMS accurately predicted herbicide concentrations in storm flow in mountain watersheds for 2 months. But it is underestimated concentrations for the next 4 months when transport processes not accounted for in the model dominated actual residue movement. PRZM was likewise tested with actual field data on subsurface movement of herbicides in mountain regions and insecticides in deep sands of the coastal plain.
- Research Organization:
- Univ. of Georgia, Athens (USA)
- OSTI ID:
- 6466294
- Report Number(s):
- CONF-8510489-
- Journal Information:
- Geol. Soc. Am., Abstr. Programs; (United States), Journal Name: Geol. Soc. Am., Abstr. Programs; (United States) Vol. 17; ISSN GAAPB
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
58 GEOSCIENCES
580100 -- Geology & Hydrology-- (-1989)
AQUIFERS
COMPUTERIZED SIMULATION
CONTAMINATION
ENVIRONMENTAL EFFECTS
ENVIRONMENTAL QUALITY
ENVIRONMENTAL TRANSPORT
FEDERAL REGION IV
GROUND WATER
HYDROGEN COMPOUNDS
MASS TRANSFER
MATHEMATICAL MODELS
NORTH AMERICA
OXYGEN COMPOUNDS
PESTICIDES
POLLUTION
SIMULATION
SURFACE WATERS
USA
WATER
WATER POLLUTION
WATER QUALITY