Regional cities’ score card for particles (PM10) NEPM 24-hour standard, based on analysis of air quality index values, 1999–2008

Very poor,Poor,Fair,Good,Very good

Average percentage frequency distribution: very good 34; good 45; fair 13; poor 6; very poor 2 (Note: Although the overall assessment is good, the distribution has a significant ‘tail’ of 29 days on which the national standard was exceeded)

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 30; good 61; fair 1; poor 0; very poor 2

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 55; good 34; fair 8; poor 2; very poor 1

Year(s): 
2011
5
Improving
Confidence (in grade): 
Adequate
Confidence (in trend): 
Limited
Comparability (to previous reports): 
Not assessed

Average percentage frequency distribution: very good 65; good 30; fair 3; poor 2; very poor 1

Year(s): 
2011
5
Unclear
Confidence (in grade): 
Limited
Confidence (in trend): 
Limited
Comparability (to previous reports): 
Not assessed

Average percentage frequency distribution:
very good 39; good 49; fair 9; poor 2; very poor 1

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 46; good 52; fair 2; poor 0; 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: Regional cities’ score card for particles (PM10) NEPM 24-hour 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-37-regional-cities-score-card-particles-pm10-nepm-24-hour-standard-based-analysis, DOI 10.4226/94/58b65c70bc372