Air quality is defined in terms of both ambient air (outdoor air) and indoor air. According to the EPA, ambient air refers to the atmosphere that is external to buildings where the general public has access. Indoor air quality (IAQ) refers to the “air quality within and around buildings and structures, especially as it relates to the health and comfort of building occupants” (EPA, http://www.epa.gov/iaq/glossary.html). Air quality standards are determined on the level of air quality “with an adequate margin of safety, to protect the public health” and “welfare from any known or anticipated adverse effects of a pollutant” (EPA, http://www.epa.gov/region4/air/sips/ky/KY-Ch-53.pdf). Please see the below information:
Environmental Health Saves Lives, Saves Money, and Protects Our Future
Environmental Health professionals ensure the air we breathe is safe by testing and monitoring air in the places we live and work.