1. MSHA (2017) MSHA Data Sets; Personal Health Samples. https://arlweb.msha.gov/OpenGovernmentData/OGIMSHA.asp.
2. Reed WR, Kwitowski AJ, Helfrich WJ, Cecala AB, Joy GJ (2014) Guidelines for performing a helmet-CAM Respirable dust survey and conducting subsequent analysis with the enhanced video analysis of dust exposures (EVADE) software. Pittsburgh, PA: U.S. Department of Health and Human Services, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, DHHS (NIOSH) Publication No. 2014-133, RI 9696
3. Cecala AB, Reed WR, Joy GJ, Westmoreland SC, O’Brien AD (2013) Helmet-Cam: tool for assessing miners’ respirable dust exposure. Min Eng 65(9):78
4. Haas EJ, Cecala AB (2017) Quick fixes to improve workers’ health: results using engineering assessment technology. Min Eng 69(7):105
5. Scientific TF [2019]. Personal dataram™ pdr-1500 aerosol monitor.ttps://www.thermofisher.com/order/catalog/product/PDR1500