Aarde en milieuwetenschappen
ammonia
100%
pig
91%
emission factor
85%
sampling
45%
evaluation
38%
dry cleaning
34%
particulate matter
28%
protocol
28%
pollutant
26%
odor
22%
housing management
20%
greenhouse gas
19%
animal housing
19%
measuring
18%
agricultural emission
17%
monitoring
16%
management technique
14%
policy
13%
disinfectant
13%
project
11%
nitrous oxide
11%
environmental policy
11%
emission reduction
11%
manure
10%
research project
10%
slurry
10%
air pollutant
10%
legislation
10%
respiration
10%
farm
9%
data analysis
9%
methodology
9%
carbon dioxide
9%
resource
8%
methane
8%
cost
8%
regulation
8%
Europe
7%
animal
7%
removal
6%
parameter
5%
Landbouw & Biologie
grinding
26%
pelleting
25%
nitrous oxide
22%
brooms
14%
protocols
14%
barns
11%
pellets
8%
measuring devices
6%
average daily gain
5%