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Original Articles

Monitoring of airborne particulates near industrial silica sand mining and processing facilities

, Ph.D., , B.S.EPH, , , , , B.S.ES, & show all
Pages 185-196 | Received 30 Jun 2017, Accepted 24 Dec 2017, Published online: 12 Mar 2018
 

ABSTRACT

To quantify risk of ambient exposure to airborne particulates around industrial silica sand operations, this study used EPA-certified federal reference method monitors to measure the levels of PM10 and PM2.5 particulate matter. The monitoring sites were chosen based upon EPA siting criteria, dichotomous samplers were calibrated before and after sampling, and pre- and post-weight filter weights were recorded. PM2.5 levels were significantly higher (paired t-tests) at both sites — averages of 7.70 ± 6.15 and 22.7 ± 31.714;µg/m3 — than concurrent background levels of 5.11 and 6.57µg/m3 respectively; and 98th percentile values were 24.9 and 111 µg/m3, respectively. Average PM10 levels were 24.2 and 49.0 µg/m3, and second-highest annual levels were 45.5 and 69.1 µg/m3 (two years) and 62.9 ug/m3 (2015) and 61.5 ug/m3 (2016), respectively for the two sites. Neither precipitation nor wind speed or direction appeared to affect PM2.5 or PM10 concentrations.

Acknowledgments

The authors of this study would like to thank the University of Iowa for the loan of an EPA FRM instrument and contributors around the upper Midwest for funding the purchase of an additional instrument used in this study. Student and supply support was provided by the Office of Research and Sponsored Programs at the University of Wisconsin-Eau Claire.

Additional information

Funding

Public and organization contributors around the upper Midwest.Funding Source: Office of Research and Sponsored Programs at the University of Wisconsin-Eau Claire.

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