Earth & Environmental Sciences
drilling fluid
80%
toxicity
52%
liquid
42%
fluid
40%
gas
35%
soil
30%
mineral oil
27%
drilling
26%
product
22%
diesel
22%
invertebrate
20%
microbial community
19%
petroleum
18%
soil biota
16%
oil extraction
15%
terrestrial environment
13%
germination
13%
earthworm
13%
sandy loam
13%
soil condition
12%
crude oil
10%
plant species
10%
seed
10%
natural gas
10%
community structure
10%
mud
9%
human health
9%
methane
8%
sulfur
8%
organic matter
7%
well
7%
oil
6%
land
6%
climate
6%
Medicine & Life Sciences
Soil
76%
Gases
59%
Petroleum
57%
Oligochaeta
42%
Mineral Oil
39%
Invertebrates
32%
Elymus
32%
Atriplex
28%
Microbiota
28%
Medicago
23%
Natural Gas
23%
Medicago sativa
22%
Biota
22%
Oil and Gas Fields
21%
Germination
20%
Methane
19%
Sulfur
16%
Climate
16%
Seeds
14%
Oils
14%
Poisons
10%
Health
6%
Chemistry
Drilling Fluid
100%
Soil
59%
Petroleum Derivative
43%
Mineral
28%
Natural Gas
20%
Environment
20%
Organic Matter
18%
Petroleum
16%
Methane
13%
Toxic
13%
Gas
9%