Earth & Environmental Sciences
nonaqueous phase liquid
100%
hydrocarbon
57%
oxygen
53%
air permeability
35%
soil gas
33%
soil
23%
modeling
22%
petroleum
21%
three-dimensional modeling
17%
soil air
16%
atmosphere
16%
soil respiration
15%
indoor air
15%
petroleum hydrocarbon
15%
field study
12%
soil surface
12%
silt
11%
biodegradation
11%
clay
9%
chemical
6%
test
5%
distribution
4%
rate
4%
Engineering & Materials Science
Hydrocarbons
72%
Oxygen
66%
Soils
64%
Liquids
54%
Vapors
36%
Air permeability
27%
Crude oil
26%
Biodegradation
14%
Silt
13%
Gases
11%
Clay
10%
Air
5%
Chemical Compounds
Hydrocarbon
58%
Liquid
44%
Soil Gas
43%
Dioxygen
39%
Soil
39%
Surface
26%
Soil Respiration
23%
Permeability
18%
Petroleum Derivative
14%
Biodegradation
12%