Postflood occurrence of selected agricultural chemicals and volatile organic compounds in near-surface unconsolidated aquifers in the upper Mississippi River Basin, 1993
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Subjects
Subjects
Agricultural chemicals
Agricultural chemicals -- Environmental aspects -- Mississippi River Watershed
Aquifers
Aquifers -- Mississippi River Watershed
Environmental aspects
Groundwater
Groundwater -- Pollution -- Mississippi River Watershed
Pollution
Volatile organic compounds
Volatile organic compounds -- Environmental aspects -- Mississippi River Watershed
Agricultural chemicals -- Environmental aspects -- Mississippi River Watershed
Aquifers
Aquifers -- Mississippi River Watershed
Environmental aspects
Groundwater
Groundwater -- Pollution -- Mississippi River Watershed
Pollution
Volatile organic compounds
Volatile organic compounds -- Environmental aspects -- Mississippi River Watershed