nonattainment area

A nonattainment area is a geographic region that has not met the clean air standards set by environmental authorities for specific pollutants, such as ozone or particulate matter. This designation indicates that air quality in the area is below acceptable levels, which can pose health risks. When an area is identified as nonattainment, it must implement plans and regulations to improve air quality and reach compliance within a specified timeframe. The goal is to reduce pollution sources and protect public health and the environment.