title: EPA smog standard attacked by industry, science advisers.
mesh_terms: D000393:Air Pollutants / Q000633:toxicity; D004305:Dose-Response Relationship, Drug; D004781:Environmental Exposure; D006077:Government Agencies; D006801:Humans; D007221:Industry; D010126:Ozone / Q000633:toxicity; D014481:United States
chemical_list: D000393:Air Pollutants; D010126:Ozone