Business / Agriculture / National Ambient Air Quality Standards (NAAQS): National standards set by the Environmental Protection Agency under authority of the Clean Air Act: NAAQS define the maximum allowable concentrations of specified air pollutants in outdoor (ambient) air. NAAQS have been set for carbon monoxide, particulate matter, sulfur oxides, nitrogen dioxide, lead, and ozone. 'Primary' NAAQS protect human health, with a margin of safety: 'secondary' NAAQS protect human welfare, which includes effects on soils, water, crops, vegetation, materials, etc.
Air Noun Synonyms: atmosphere, ambience, aura, climate, feeling, sense, mood, quality
National Noun Synonyms: nationalistic, nationalist, patriotic, jingoistic, chauvinistic
National Adjective Synonyms: nationwide, country-wide, state, governmental, civil, public, popular, federal
Quality Verb Synonyms: property, attribute, characteristic, mark, distinction, je ne sais quoi, trait
Entertainment / Football / National Football League (NFL): The largest professional American football league, with 32 teams. MORE
Business / Agriculture / National Forest: Originally, forest reserves, established by Presidential proclamation mostly between 1891 and 1909. Today, the boundaries of the 155 national forests cannot be modified without congressional authoriza MORE