Skip to main content
U.S. flag

An official website of the United States government

Map showing tentative threshold values

2017 (approx.)

Detailed Description

Environmental and Public Health Microbiology Laboratory. Map showing tentative threshold values (Calcium >= 13000 ppm, Manganese >= 463 ppm, Phosphorus >= 580 ppm, and Strontium >= 170 ppm) used to identify where naturally occurring outbreaks of Bacillus anthracis, the causative agent of Anthrax, are "more likely" to occur than in other locations, with all other variables held constant.


Public Domain.