Earth & Environmental Sciences
steroid
85%
drug
68%
groundwater
62%
antibiotics
59%
soil
49%
hormone
48%
nitrate
45%
runoff
45%
manure
43%
aquifer
42%
pollutant
42%
beef cattle
37%
gene
37%
uranium
37%
water
36%
antibiotic resistance
36%
irrigation
33%
pesticide
33%
sediment
32%
watershed
31%
sampler
31%
slurry
30%
detection
28%
wastewater
28%
contamination
27%
surface water
26%
river
25%
wastewater treatment plant
25%
atrazine
24%
removal
23%
vadose zone
23%
analytical method
23%
iron
22%
effect
22%
chemical
19%
environmental fate
19%
effluent
19%
nitrogen
18%
exposure
18%
microbial community
17%
PPCP
17%
agricultural ecosystem
17%
concretion
16%
crop
16%
biological effect
16%
iron oxide
16%
maize
15%
livestock
15%
land
14%
oxidation
14%
nutrient
14%
rate
14%
water quality
14%
imidacloprid
14%
arsenic
14%
biotransformation
13%
sorption
13%
liquid chromatography
13%
sand
13%
risk assessment
13%
persistence
13%
salmonella
12%
nanomaterial
12%
mass spectrometry
12%
human health
12%
bioavailability
12%
triazine
12%
cattle
12%
method
11%
agricultural runoff
11%
sampling technique
11%
metabolite
11%
leaching
11%
recharge
11%
lake
11%
analysis
10%
herbicide
10%
bacterium
10%
acetate
10%
siderite
10%
degradation
10%
testosterone
10%
larva
9%
pesticide residue
9%
biodegradation
9%
infiltration
9%
rhizosphere
9%
alachlor
9%
aquatic system
9%
experiment
9%
food
8%
drinking water
8%
mineralization
8%
product
8%
gene expression
8%
rainfall
8%
soil surface
8%
community structure
8%
health risk
8%
sandstone
8%
Engineering & Materials Science
Antibiotics
99%
Runoff
71%
Groundwater
70%
Soils
62%
Impurities
60%
Steroid hormones
56%
Veterinary Drugs
47%
Drug products
45%
Manures
44%
Sediments
44%
Rivers
42%
Pesticides
40%
Surface waters
36%
Aquifers
36%
Water
36%
Herbicides
35%
Nitrates
34%
Watersheds
33%
Wastewater
32%
Genes
31%
Beef
27%
Uranium
26%
Irrigation
26%
Nutrients
25%
Contamination
24%
Arsenic
22%
Crops
20%
Biotransformation
20%
Liquid chromatography
19%
Salmonella
18%
Lakes
17%
Agricultural runoff
17%
Water quality
17%
Mass spectrometry
16%
Sulfonamides
16%
Potable water
15%
Sampling
14%
Effluents
14%
Nitrogen
14%
Nanostructured materials
14%
Organic chemicals
14%
Wastewater treatment
13%
Street Drugs
13%
Risk assessment
13%
Rain
13%
Metabolites
12%
Health risks
12%
Selenium
11%
Biodegradation
11%
Sand
11%
Toxicity
11%
Pathogens
10%
Leaching
10%
Infiltration
10%
Iron
9%
Subirrigation
9%
Bacteria
9%
Caffeine
9%
Zinc
8%
Sorption
8%
Biological Availability
7%
Isotopes
7%
Degradation
7%
Metals
7%
Animals
7%
Hormones
7%
Aquatic organisms
7%
Disinfectants
7%
Water treatment
7%
Nitrogen removal
7%
Water supply
7%
Nitrogen fertilizers
6%
Wetlands
6%
Drought
6%
Screening
6%
Fish
6%
Health
6%
Composting
6%
Phosphorus
6%
Microplastic
6%
Aquatic ecosystems
6%
Evapotranspiration
6%
Trichloroethylene
6%
Estrogens
6%
Biofilters
6%
Recovery
6%
Gene expression
5%
Escherichia coli
5%
Water wells
5%
Trace analysis
5%
Catchments
5%
Insecticides
5%
Air
5%
Ligands
5%
Polycyclic aromatic hydrocarbons
5%
Nitrification
5%
Land use
5%
Fisheries
5%
Soil moisture
5%
Developing countries
5%
Chemical Compounds
Groundwater
100%
Soil
93%
Antimicrobial Agent
63%
Pharmaceutical
58%
Steroid Hormone
56%
Pesticide
53%
Atrazine
41%
Surface Water
40%
Irrigation
39%
Environment
35%
Wastewater
35%
Wastewater Treatment
33%
Nitrate
32%
Steroid
30%
Ecological Effect
28%
Carbamazepine
24%
Metolachlor
22%
Cyanotoxin
22%
Tetracycline
21%
Trenbolone
21%
Estrogen
21%
Risk Assessment
20%
Lincomycin
20%
Sampling
20%
Steroid Antibiotic
20%
Resistance
18%
Sulfamethoxazole
16%
Androgen
15%
Irrigation Water
15%
Nutrient
15%
Alachlor
15%
Oxytetracycline
14%
Cyanazine
14%
Suspended Sediment
14%
Sulfamethazine
14%
Filtration
13%
Metabolite
13%
Bioavailability
12%
Soil Texture
12%
Isotope
11%
Caffeine
11%
Chlortetracycline
11%
Liquid Chromatography Mass Spectrometry (LCMS)
11%
Chemical Transformation
11%
Flow
10%
Acetochlor
10%
Estrone
10%
Application
10%
Nitrogen
9%
Gemfibrozil
9%
Nanomaterial
9%
Tiamulin
9%
Estradiol
9%
Leaching
9%
Tandem Mass Spectrometry
9%
Tylosin
9%
Trace Analysis
9%
Propachlor
9%
Pesticide Residue
9%
Biodegradation
8%
Reduction
8%
Instrumentation
8%
(-)-Cotinine
8%
Anti-Estrogen
8%
EPTC
8%
Imidacloprid
8%
Herbicide
7%
Nitrogen Fertilizer
7%
Butylate
7%
Hormone
7%
Sulfonamide
7%
Progesterone
7%
Dimethenamid
7%
Tillage
7%
Sorption
7%
Testosterone
7%
Surface
7%
Chemical Oxygen Demand
7%
1,7-dimethylxanthine
7%
Ecosystem
7%
Metribuzin
7%
Gas Chromatography Mass Spectrometry (GCMS)
7%
Fulvestrant
7%
Illicit Drug
7%
Remediation
7%
Antihelmintic
7%
Safety
6%
Trifluralin
6%
Dissipation
6%
Food
6%
Column Like Crystal
6%
Rhizosphere
6%
Microcystin
6%
Disulfoton
6%
Amphetamine
6%
Sulfonamide Antibiotic
6%
Mineral
6%
Pressure
5%