Perth 24-hour mean Increased No effect on any n/a n/a n/a. n/a No CRF respiratory day symptoms Increased recommended. symptoms (cough, wheeze, symptoms & shortness of breath, medication use in runny nose, eye asthmatic children irritation, fever) in seen for median models ranges of 18-26 ppb with O3. (24-hour average) () and mean NO2 of No effect on any 32 ppb (4-hour night symptoms average) () (cough, wheeze, () shortness of breath) in 2-pollutant 2.8% (0.2-5.5%) per models with O3. 1ppb () () Six cities – Adelaide, Brisbane, Canberra, Melbourne, Perth, Sydney. Age: mean 10.0 years. 270 children with current asthma. General practitioner No effect. n/a n/a n/a n/a No CRF consultation for () recommended. asthma 148 children (mean age about 9.6 years) with a history
Perth 24-hour mean Increased respiratory symptoms No effect on any day symptoms (cough, wheeze, shortness of breath, runny nose, eye irritation, fever) in models with O3. No effect on any night symptoms (cough, wheeze, shortness of breath) in 2-pollutant models with O3. () Six cities – Adelaide, Brisbane, Canberra, Melbourne, Perth, Sydney. Age: mean 10.0 years. 270 children with current asthma. n/a n/a n/a. Increased symptoms & medication use in asthmatic children seen for median ranges of 18-26 ppb (24-hour average) () and mean NO2 of 32 ppb (4-hour average) () () 2.8% (0.2-5.5%) per 1ppb () n/a No CRF recommended. General practitioner consultation for asthma No effect. () 148 children (mean age about 9.6 years) with a history n/a n/a n/a n/a No CRF recommended.