Health Risk Values Rules for Ambient Air
Ambient Air Rules
The Minnesota Department of Health (MDH) promulgates Health Risk Values (HRVs) for chemicals in ambient air. These values were established through a scientific and stakeholder involvement process, and adopted into rule in March of 2002. For additional information, see the links below, Frequently Asked Questions or contact the Health Risk Assessment Unit.
The Statement of Need and Reasonableness (SONAR) (PDF: 652KB/72 pages) for the HRV Rules provides a thorough description of the scientific methods and principles used to develop HRVs.
Note: SONARs are written for a specific step in the rule development process. The HRV SONAR does not reflect all information that was included in the HRV Rules. See the Responses to Comments on the Proposed Permanent Rule (PDF: 79 KB/17 pages) for additional considerations and information incorporated into the HRV Rules.
|4717.8000||Purpose and Scope.|
|4717.8100||Table of Chronic HRVs.|
|4717.8150||Table of Subchronic HRVs.|
|4717.8200||Table of Acute HRVs.|
|4717.8250||Table of mHRVs for Multimedia Exposure to Air Toxics.|
|4717.8300||Equations for Calculation of HRVs for Noncarcinogenic Effects of Toxicants.|
|4717.8350||Equation for Calculation of mHRVs for Noncarcinogenic Effects of Toxicants.|
|4717.8400||Equation for Calculation of HRVs for Carcinogens.|
|4717.8450||Equation for Calculation of mHRVs for Carcinogens.|
|4717.8500||Equations for Calculation of HRVs for Acute Toxicity.|
|4717.8550||Procedure for Determining Cancer Index for Simultaneous Exposure to Multiple Carcinogens.|
|4717.8600||Procedure for Determining Hazard Index for Assessing Simultaneous Exposure to Multiple Toxicants with Noncarcinogenic Effects.|