Earth & Environmental Sciences
dechlorination
91%
trichloroethylene
86%
sulfate-reducing bacterium
86%
iron-reducing bacterium
56%
environmental index
55%
europium
53%
iron
51%
biological treatment
40%
rainwater
39%
activated carbon
35%
weathering
31%
hydrogen
29%
water demand
29%
decision making
28%
heavy metal
28%
pollutant
27%
electron
27%
particle
26%
climate change
25%
wastewater
25%
pollution
25%
monsoon
22%
chromium
21%
trend
19%
effect
19%
river
18%
material
17%
storage tank
16%
temperature
14%
cadmium
13%
roof
13%
household
12%
bioremediation
10%
sizing
10%
iron nanoparticle
10%
urban pollution
9%
fish
9%
metal
9%
city
8%
microorganism
8%
anthropogenic source
8%
pollutant source
8%
quality standard
7%
bioaccumulation
7%
sediment
7%
textile
7%
bacterium
7%
social status
6%
nickel
6%
soil
6%
Engineering & Materials Science
Heavy metals
100%
Rivers
86%
Contamination
44%
Surface waters
44%
Chromium
42%
Sediments
39%
Impurities
37%
Cadmium
36%
Pollution
35%
Fish
29%
Water supply systems
27%
Bioremediation
25%
Bioaccumulation
24%
Phytoplankton
22%
Soils
22%
Zinc
20%
Microorganisms
18%
Nickel
17%
Bacteria
17%
Toxicity
15%
Catchments
14%
Runoff
13%
Metals
13%
Textiles
13%
Materials properties
12%
Ponds
12%
Aquifers
12%
Geology
12%
Lead
12%
Water supply
11%
Rain
10%
Biofilms
10%
Metabolism
9%
Water quality
9%
Surface properties
7%
Availability
6%
Drug products
6%
Ecosystems
5%
Wastewater
5%
Degradation
5%
Chemical analysis
5%
Agriculture & Biology
Bangladesh
42%
heavy metals
34%
pollution
33%
rivers
30%
chromium
23%
bioaccumulation
17%
Corica
16%
sediments
14%
cadmium
13%
tannery waste
13%
Channa striata
12%
metals
11%
water quality standards
11%
fish
8%
aquatic organisms
8%
surface water
8%
phytoplankton
8%
normal values
7%
soil
7%
nickel
7%
soil water
6%
water
6%
zinc
6%
toxicity
5%