Cost-effectiveness of dust controls used on unpaved haul roads. Volume 1. Results, analysis, and conclusions. Open File report, September 1981-April 1984

The basic objective of the project was to determine the cost-effectiveness of dust controls used on unpaved mine-haul roads. Field testing was conducted at three surface coal mines (two in Wyoming, one in southern Illinois) for a total of 20 weeks. The highest control efficiency measured for a chemical dust suppressant, 82 pct, was for calcium chloride 2 weeks after application. Chemical dust suppressants (primarily salts and lignons) can be shown to be more cost-effective than watering under some conditions. Data summaries and the analysis of data are contained in this report.