Metropolitan cities’ score card for ozone (four-hour) NEPM standard, based on analysis of air quality index values, 1999–2008

Very poor,Poor,Fair,Good,Very good

Average percentage frequency distribution: very good 46; good 53; fair 1; poor 0; very poor 0

Year(s): 
2011
4
Stable
Confidence (in grade): 
Adequate
Confidence (in trend): 
Adequate
Comparability (to previous reports): 
Not assessed

Average percentage frequency distribution: very good 31; good 64; fair 55; poor 0; very poor 0

Year(s): 
2011
4
Stable
Confidence (in grade): 
Adequate
Confidence (in trend): 
Adequate
Comparability (to previous reports): 
Not assessed

Average percentage frequency distribution: very good 43; good 55; fair 2; poor 0; very poor 0

Year(s): 
2011
4
Deteriorating
Confidence (in grade): 
Adequate
Confidence (in trend): 
Limited
Comparability (to previous reports): 
Not assessed

Average percentage frequency distribution: very good 34; good 63; fair 3; poor 0; very poor 0

Year(s): 
2011
4
Stable
Confidence (in grade): 
Adequate
Confidence (in trend): 
Adequate
Comparability (to previous reports): 
Not assessed

Average percentage frequency distribution: very good 16; good 79; fair 4; poor 0; very poor 0

Year(s): 
2011
4
Stable
Confidence (in grade): 
Adequate
Confidence (in trend): 
Adequate
Comparability (to previous reports): 
Not assessed

Average percentage frequency distribution: very good 17; good 72; fair 9; poor 2; very poor 0

Year(s): 
2011
4
Stable
Confidence (in grade): 
Adequate
Confidence (in trend): 
Adequate
Comparability (to previous reports): 
Not assessed
(2011). Ambient air quality: Metropolitan cities’ score card for ozone (four-hour) NEPM standard, based on analysis of air quality index values, 1999–2008. In: Australia state of the environment 2011, Australian Government Department of the Environment and Energy, Canberra, https://soe.environment.gov.au/assessment-summary/ambient-air-quality/metropolitan-cities-score-card-ozone-four-hour-nepm-standard, DOI 10.4226/94/58b65c70bc372