Dust in Pig Buildings

Air-Polluted with Particulate Matters from Livestock Buildings

“…In case of non-compliance with these limits in animal barns protective arrangements should be employed for the staff such as breathing masks, (Scheuermann, 2004). Under Danish conditions a consistent relationship between environmental exposure in livestock buildings, lung function changes and/or respiratory symptoms in workers and identified exposure-response thresholds for workers on the basis of exposure response thresholds for poultry and swine confinement buildings has been observed by Pedersen et al (2000). The limit recommendations for humans are 2.4 mg/m 3 of total dust, 0.23 mg/m 3 of respirable dust with a total of 800 EU/m 3 (EU = endotoxin unit) and 7 ppm of ammonia (Pedersen et al 2000).…”

“…The chemical composition of airborne and the settled dust from different sources have nearly the same concentrations of dry matter, ash, N, P, K, Cl and Na (Pedersen et al 2000). From the chemical analysis of the airborne and settled dust in broiler houses and pig rooms, the dust from broiler houses was higher in its chemical composition than that from the pig barns (Ellen et al 2000).…”

“…There is a high variation in the pattern of spatial dust distribution in mechanically ventilated animal buildings. Thus, the ventilation systems have direct effects on the spatial dust concentration whereas the increase of the ventilation rate will not necessarily reduce the overall dust level effectivel because the dust production rate will increase with increasing ventilation (Pedersen et al 2000). A comparative study of respirable dust concentration between European countries and the state of Texas in the USA has been presented by Redwine et al (2002).…”

Experimental airborne transmission ofSalmonellaAgona andSalmonellaTyphimurium in weaned pigs

“…It is worth noting that such measures not only decrease infectious aerosols, but also contribute to decreased animal stress. Moreover, spraying oil or a mixture of oil and water in the environment can efficiently reduce dust concentrations in pig barns [38]. Finally, as feed is the major source of airborne dust [39], feeding strategies should also be considered as options to reduce dust in barns.…”

Antibiotics in dust originating from a pig-fattening farm: a new source of health hazard for farmers?

“…Large-scale pig production represents a considerable source of dust (Hartung 1997(Hartung , 1998Pedersen et al 2000). This results both in high dust exposure for farmers and farm workers in animal confinement buildings, causing respiratory health hazards (Iversen et al 2000;Nowak 1998;Platz et al 1995;Radon et al 2002), and in emissions of dust particles into the environment by way of the exhaust ventilation air (Hartung 1995;Seedorf and Hartung 2002).…”