Título: Particulate matter emitted from poultry and pig houses: Source identification and quantification
Autor: Cambra López, María; Hermosilla, T.; Lai, Houng TL; Aarnink, André Johannes Antonius; Ogink, Nico
Resumen: [EN] There is need to identify and quantify the contribution of different sources to airborne particulate matter (PM)
emissions from animal houses. To this end, we compared the chemical and morphological characteristics of fine and coarse
PM from known sources collected from animal houses with the characteristics of on‐farm fine and coarse airborne PM using
two methods: classification rules based on decision trees and multiple linear regression. Fourteen different farms
corresponding to seven different housing systems for poultry and pigs were sampled during winter. A total of 28 fine and
28coarse on‐farm airborne PM samples were collected, together with a representative sample of each known source per farm
(56 known source samples in total). Source contributions were calculated as relative percentage contributions in particle
numbers and then estimated in particle mass. Based on particle numbers, results showed that in poultry houses, most on‐farm
airborne PM originated from feathers (ranging from 4% to 43% in fine PM and from 6% to 35% in coarse PM) and manure
(ranging from 9% to 85% in fine PM and from 30% to 94% in coarse PM). For pigs, most on‐farm airborne PM originated
from manure (ranging from 70% to 98% in fine PM and from 41% to 94% in coarse PM). Based on particle mass, for poultry
most on‐farm airborne PM still originated from feathers and manure; for pigs, however, most PM originated from skin and
manure. Feed had a negligible contribution to on‐farm airborne PM compared with other sources. Results presented in this
study improve the understanding of sources of PM in different animal housing systems, which may be valuable when choosing
optimal PM reduction techniques.
Descripción: Copyright 2011 - American Society of Agricultural and Biological Engineers ISSN 2151-0032
