Engineering & Materials Science
Aquifers
100%
Gravel
92%
Tracers
89%
Effluents
87%
Soils
60%
Groundwater
57%
DNA
36%
Contamination
20%
Lysimeters
13%
Polymerase chain reaction
10%
Discharge (fluid mechanics)
9%
Ponds
9%
Dispersions
9%
Water resources
8%
Waste disposal
8%
Oxidation
6%
Experiments
4%
Recovery
4%
Water
3%
Earth & Environmental Sciences
gravel
69%
tracer
60%
aquifer
56%
effluent
54%
soil
32%
groundwater
29%
DNA
29%
bromide
15%
contamination
13%
preferential flow
8%
polymerase chain reaction
8%
lysimeter
8%
travel
6%
contaminated soil
6%
pond
5%
experiment
5%
environmental conditions
5%
human activity
5%
mitigation
5%
water resource
5%
oxidation
4%
speed
4%
detection
4%
land
3%
laboratory
3%
water
2%
method
1%
Chemical Compounds
Groundwater
83%
Soil
65%
Double-Stranded DNA
59%
Bromide
16%
Chain Reaction
10%
Pore
7%
Flow
7%
Column Like Crystal
6%
Reduction
5%