title: Rhythms and air pollution.
mesh_terms: D000109:Acetylcholine; D000397:Air Pollution; D000818:Animals; D001249:Asthma / Q000139:chemically induced; D002245:Carbon Dioxide; D002249:Carbon Monoxide Poisoning / Q000453:epidemiology; D002940:Circadian Rhythm; D005260:Female; D006801:Humans; D006967:Hypersensitivity / Q000453:epidemiology; D000860:Hypoxia / Q000453:epidemiology; D008027:Light; D008297:Male; D010101:Oxygen Consumption; D010507:Periodicity; D051381:Rats; D012119:Respiration; D012621:Seasons; D012867:Skin / Q000276:immunology; D014887:Weather
chemical_list: D002245:Carbon Dioxide; D000109:Acetylcholine