Agriculture & Biology
ozonation
95%
chemical oxygen demand
92%
wastewater treatment
82%
water treatment
79%
Mexico
60%
rivers
58%
basins
51%
organic matter
50%
injection
38%
water quality
36%
water reservoirs
25%
biochemical oxygen demand
24%
fecal bacteria
22%
surface water
20%
organic compounds
20%
indicator species
19%
ozone
19%
dosage
19%
chromium
19%
nickel
18%
wastewater
17%
manganese
17%
biodegradability
17%
aluminum
16%
aromatic compounds
16%
heavy metals
16%
water
15%
zinc
14%
iron
13%
sampling
13%
Medicine & Life Sciences
Water Purification
100%
Waste Water
95%
Biological Oxygen Demand Analysis
86%
Mexico
78%
Rivers
60%
Water
49%
Water Quality
35%
Injections
21%
Environmental Biomarkers
17%
Diethylhexyl Phthalate
17%
Ozone
15%
Chromium
14%
Manganese
14%
Heavy Metals
14%
Nickel
14%
Aluminum
14%
Zinc
11%
Iron
10%
Oxygen
8%
Therapeutics
2%
Earth & Environmental Sciences
ozonation
80%
wastewater
49%
chemical oxygen demand
45%
removal
32%
phthalate
28%
organic matter
24%
river
24%
water
22%
basin
18%
dose
18%
urban waste water
15%
absorption coefficient
14%
fecal coliform
13%
biodegradability
13%
biochemical oxygen demand
13%
water reservoir
13%
bioindicator
13%
chromium
11%
manganese
11%
organic compound
10%
nickel
10%
zinc
10%
aluminum
9%
ozone
9%
heavy metal
8%
surface water
8%
water quality
8%
iron
8%
parameter
4%
Chemistry
Chemical Oxygen Demand
86%
Organic Matter
59%
Wastewater
59%
Phthalate
41%
Dose
28%
Biochemical Oxygen Demand
25%
Absorption Coefficient
20%
Surface Water
19%
Biodegradability
19%
Ozone
18%
Organic Molecule
17%
Biological Marker
16%
Heavy Metal
15%
Reduction
8%
Social Sciences
Mexico
59%
water
58%
river
40%
demand
36%
Surface waters
15%
Water quality
13%