Accepted Limit Values of Air Pollutants (open access)

Accepted Limit Values of Air Pollutants

Report issued by the U.S. Bureau of Mines discussing, as stated in the introduction, the "accepted maximum permissible concentrations of air pollutants from the standpoints of health, damage to vegetation, damage to property, and requirements of industrial processes" (p. 1). This report includes tables.
Date: May 1954
Creator: Barkley, J. F.
System: The UNT Digital Library
Names and Definitions of Regions, Districts, and Subdistricts in Alaska: Used by the Bureau of Mines in Statistical and Economic Studies Covering the Mineral Industry of the Territory (open access)

Names and Definitions of Regions, Districts, and Subdistricts in Alaska: Used by the Bureau of Mines in Statistical and Economic Studies Covering the Mineral Industry of the Territory

Report issued by the U.S. Bureau of Mines discussing the development of a naming system for Alaskan regions and districts. The structure of the naming system and a description of each district are presented. This report includes maps.
Date: May 1954
Creator: Ransome, Alfred L. & Kerns, William H.
System: The UNT Digital Library