Technology Transfer Network - OAR Policy and Guidance
OAR Policy and Guidance Metarecord
Assessing Public Opinions on Visbility Impairment due to Air Pollution: Project Summary and questions
Assessing Public Opinions on Visibility Impairment due to Air pollution: Federal Register Notice
Air Quality Strategies and Standards Division (OAQPS) / Lydia Wegman
Background Information Documents
| EPA Document Number:
The purpose of this project is to obtain information regarding public opinions on visibility impairment due to air pollution. EPA will use these findings to inform its review of the National Ambient Air Quality Standards (NAAQS) for Particulate Matter (PM). EPA establishes secondary NAAQS to protect against adverse effects on public welfare, and one of the welfare effects associated with airborne PM is visibility impairment. These focus groups will provide important information on people's views regarding the discernibility and acceptability of differing levels of visibility impairment.