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disclaimer   back to index  Great Lakes Monitoring  Air
Indicators Pesticides  In Air  Atmospheric Concentrations of
Pesticides Through 2002  Goal: Virtually eliminate sources to
the Great Lakes and continue declines in air concentrations.
Status: Most monitored pesticides have been banned in the U.S.
and Canada, so inputs from within the Great Lakes basin have
decreased.  Trends: Concentrations in air and precipitation have
been declining since monitoring began in the early 1990s.
Issues: Banned pesticides may still be released into the air
from soils where they were once applied and areas where existing
stockpiles are stored. They may also be present in bottom
sediments of rivers and lakes, from which they can eventually
volatilize into the air. Air currents can carry these pesticides
from other countries where they are still used. EPA is working
internationally to reduce use of these substances and find
alternatives.    Jump to main content.