air quality(The degree to which air is polluted; the type and maximum concentration of man-produced pollutants that should be permitted in the atmosphere)
air quality management(Regulate and plan and work toward the accomplishment of completion of stated goals, objectives and mission pertaining to air quality)
air quality monitoring(Regular checking and recording of air quality in a given area. The following pollutants must be considered: carbon monoxide, benzene, butadiene, lead, sulphur dioxide, nitrogen dioxide, and particulates)
air safety(Any measure, technique or design intended to reduce the risk of harm posed by either moving vehicles or projectiles above the earth's surface or pollutants to the earth's atmosphere)