Columbia subject headings:
Hazardous waste sites--United States.
Soil air--Sampling--United States.
Soil surveys--United States--Geophysical methods.
Soils--Sampling--United States.
Harvard subject headings:
Princeton subject headings:
Hazardous waste sites--United States.
Soil air--Sampling--United States.
Soil surveys--United States--Geophysical methods.
Soils--Sampling--United States.