AI Article Synopsis
- Researchers compared inhalable and total dust sampling devices for measuring airborne dust in swine confinement buildings, analyzing data from three facilities (n = 77 pairs).
- The study found that the overall geometric mean concentration for the IOM sampler (1.18 mg/m³) was significantly higher than that of the TCF sampler (1.08 mg/m³), and a regression analysis provided a conversion factor for estimating TCF values based on IOM measurements.
- Additional comparisons of different dust samplers indicated significantly higher concentrations from the IOM compared to the CIS, while no significant differences were observed among the other sampler pairs, suggesting a need for work-specific conversion coefficients for total dust exposure assessments.
Article Abstract
Inhalable and total dust sampling devices were compared for evaluating airborne dust in swine confinement buildings. Measurements from three swine facilities (n = 77 paired means) were obtained by area sampling using the IOM (Institute of Occupational Medicine, Edinburgh, U.K.) inhalable dust sampler and a 37-mm closed-face total (TCF) dust sampler. The overall geometric mean IOM concentration (1.18 mg/m(3), geometric standard deviation [GSD] = 2.00) was significantly greater (P < 0.05) than the overall geometric mean TCF concentration (1.08 mg/m(3), GSD = 1.98). Regression analysis with IOM and TCF values as independent and dependent variables, respectively, yielded a factor of 0.86 (+/-0.04 95% confidence interval), which can be used to estimate TCF values from the IOM measurements. Additional paired sampling data were obtained to compare the following pairs of dust samplers: (1) IOM sampler and conical inhalable sampler (CIS) (n = 20 paired means), (2) IOM and open-face total (TOF) dust samplers (n = 14), (3) CIS and TCF samplers (n = 19), and (4) TCF and TOF samplers (n = 8). Paired t-tests showed significantly (P < 0.05) higher IOM concentrations than the CIS sampler; no significant difference (P > 0.05) was found for the other three pairs compared. It may be necessary to establish work-specific conversion coefficients to obtain a reasonable estimate of worker exposure to total dust from measurements using other types of dust sampling devices.
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| http://dx.doi.org/10.1080/10473220301375 | DOI Listing |
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