Health Risk Assessments

Assembly Bill (AB) 2588, the Air Toxics “Hot Spots” Information and Assessment Act, of the California Air Resources Board (CARB) was enacted in 1987 as a means to identify, analyze, and respond to the impacts of emissions from stationary sources in California. Under AB 2588, certain facilities determined to be “high priority” are required to submit a Health Risk Assessment (HRA) to their air pollution control and air quality management districts.

HRAs require a facility to model the air dispersion of toxic emissions from stationary sources onsite, and determine the resulting acute, chronic, and cancer health risks of nearby workers and residents based on exposure concentrations. Based on the resulting risks, the facility may fall below action limits, be required to notify the public, or be required to implement risk reduction projects. The specific thresholds and requirements for these actions are determined on the district level, and are not standardized throughout the state.

Greenhouse Gas Reporting

CARB provides the Hotspots Analysis and Reporting Program (HARP) software to assist with the development of an HRA. HARP is a comprehensive tool that models emission points, buildings, wind patterns, elevation, and more to determine concentrations at discrete points around a facility, and then uses these concentrations to calculate the resulting risk depending on applicable exposure parameters.

Davenport Engineering has extensive experience working with the HARP modeling software to develop HRAs, as well as for internal health risk benchmarking for both small and large facilities. In addition, Davenport Engineering can help provide insight on the largest contributors to health risk at your facility, and easily implementable solutions to meet your risk targets. For more information or for a free consultation, please contact us today.