Environmental Impact Caused By Fungal And
Particle Contamination Of Portuguese Swine
Author(s)
C. Viegas, S. Viegas, M. Almeida-Silva, C. Veríssimo
& R. Sabino
Abstract
Social concerns for environmental impact on air, water and soil pollution have
grown along with the accelerated growth of pig production. This study intends to
characterize air contamination caused by fungi and particles in swine production,
and, additionally, to conclude about their eventual environmental impact. Fiftysix
air samples of 50 litters were collected through impaction method. Air
sampling and particle matter concentration were performed in indoor and also
outdoor premises. Simultaneously, temperature and relative humidity were
monitored according to the International Standard ISO 7726 – 1998. Aspergillus
versicolor presents the highest indoor spore counts (>2000 CFU/m3) and the
highest overall prevalence (40.5%), followed by Scopulariopsis brevicaulis
(17.0%) and Penicillium sp. (14.1%). All the swine farms showed indoor fungal
species different from the ones identified outdoors and the most frequent genera
were also different from the ones indoors. The distribution of particle size
showed the same tendency in all swine farms (higher concentration values in
PM5 and PM10 sizes). Through the ratio between the indoor and outdoor values,
it was possible to conclude that CFU/m3 and particles presented an eventual
impact in outdoor measurements. Besides its potential environmental impact,
Keywords
swine, fungal contamination, particles, air contamination, environmental impact
Related Book
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