Pesticides can reach the river either directly or indirectly from a wide variety of sources, including: Agricultural runoff associated with crops and animal feedlots Weed and pest control activities on roadways, in households, and government and commercial facilities Stormwater and from direct disposal in storm drains and sewer systems Industrial, agricultural, and household spills and improper storage Subsurface drainage from leaking landfills and hazardous waste sites Direct application to lakes, streams, and estuaries Drifting spray resulting from aerial and land-based applications Contaminated groundwater connections to surface water Runoff or fallout from rain, fog, and dust Erosion of contaminated soils Irrigation practices and return flows of pesticide-laced water into a water body What can we do to reduce the amount of pesticides in the Columbia?
(Pesticides; can reach; the river) (spray; resulting; from aerial and land-based applications) (Agricultural runoff; associated; with crops and animal feedlots Weed and pest control activities on roadways, in households, and government and commercial facilities Stormwater and from direct disposal in storm) (Weed and pest control activities on roadways, in households, and government and commercial facilities; drains; )
Pesticides spray Agricultural runoff Weed and pest control activities on roadways, in households, and government and commercial facilities
can reach resulting associated drains
the river
from aerial and land-based applications
with crops and animal feedlots Weed and pest control activities on roadways, in households, and government and commercial facilities Stormwater and from direct disposal in storm