Emissions from Swine Production

 

Meta-Analysis of Air Emissions from Swine Production Facilities in North America

A meta-analysis has been performed on air emissions from swine production facilities in North America. Emissions data from published papers as well as from reports of the eleven swine sites in the NAEMS were compiled. The preliminary results are presented in the following table.

Summary of air emissions from swine production facilities in North America
Air Constituent
Average emission rates, kg yr-1 hd-1
Ambient concentrations in the vicinity of swine facilities (<50m)
From swine buildings
From manure storage facilities
NH3
4.39±4.84
6.12±5.92
707±795 ppb
H2S
0.42±0.74
0.34±0.35
10.3±8.9 ppb
VOCs
1.70±1.36
3.13±4.20
442±665 µg m-3
PM10
0.19±0.17
-
52±14 µg m-3
PM2.5
0.019±0.022
-
15.7±1.1 µg m-3
N2O
0.01±0.01
0.01±0.03
-
CH4
8.4±11.0
17.5±19.5
-
Note: Data are preliminary results of projects NPB#10-104 and NPB#12-002.