Effect of air velocity and temperature on reducing dust levels in pig nurseries

Air cleaning systems for livestock buildings

“…The viable count increased by the order of magnitude when sleeping pigs were forcefully awakened and their activity level increased. Zhang (1986) concluded that pig activity is an important factor for dust control. Active pigs create more dust (Table 5).…”

“…Table 6. Effect of environmental temperature on dust production by caged laying hens (Curtis, 1983) Environmental temperature (C) Dust production (mg/day/hen) The effect of relative humidity on the dust level is related more or less to the influence of the temperature (Zhang, 1986). Bundy and Hazen (1974) concluded that after dust becomes airborne the relative humidity has little effect on the change in airborne dust.…”

“…Meyer et al (1986) observed that at higher air velocities the total mass concentration of the dust reduced as respirable mass concentration of the dust increased. Zhang et al (1987) tested the influence of air velocity and air temperature on dust levels. The results showed no significant effect from temperature variation, however, the dust concentration was dependent on air velocity.…”