

Metropolitan cities' scorecard for particles (PM10) NEPM 24-hour standard, based on analysis of air quality index values, 1999-2014
Metropolitan cities' scorecard for particles (PM10) NEPM 24-hour standard, based on analysis of air quality index values, 1999-2014
This assessment summary component has changed from 2011.
- This assessment summary was previously assessed for the years 1999-2008 for the 2011 report.
The original 2011 summary, grade, trend and confidence levels have been replicated here to assist comparison of changes between reporting cycles.
Average percentage frequency distribution: very good 59; good 37; fair 3; poor <1; very poor <1
Average percentage frequency distribution: very good 42; good 51; fair 5; poor 1; very poor 1
Average percentage frequency distribution: very good 69; good 29; fair 1; poor <1; very poor <1
Average percentage frequency distribution: very good 63; good 34; fair 3; poor 0; very poor 0
Average percentage frequency distribution: very good 85; good 13; fair 2; poor <1; very poor <1
Average percentage frequency distribution: very good 43; good 55; fair 2; poor 0; very poor 0
Average percentage frequency distribution: very good 50; good 38; fair 10; poor 2; very poor 1
Average percentage frequency distribution: very good 56; good 42; fair 2; poor 0; very poor 0
Average percentage frequency distribution: very good 77; good 22; fair 1; poor <1; very poor 0
Average percentage frequency distribution: very good 73; good 26; fair 1; poor 0; very poor 0
Average percentage frequency distribution: very good 51, good 42; fair 5; poor 1; very poor <1
Average percentage frequency distribution: very good 36; good 50; fair 11; poor 2; very poor 1
Average percentage frequency distribution: very good 54; good 43; fair 3; poor <1; very poor <1
Average percentage frequency distribution: very good 49; good 47; fair 3; poor 0; very poor 0 (Note: borderline very good – good)
Average percentage frequency distribution: very good 58; good 38; fair 3; poor <1; very poor <1
Average percentage frequency distribution: very good 50; good 45; fair 4; poor 1; very poor 0 (Note: borderline very good – good)
Assessment Summary Key
Grades
Very good
Air quality is considered very good, and air pollution poses little or no risk
Good
Air quality is considered good, and air pollution poses little or no risk
Fair
Air quality is acceptable. However, there may be a health concerns for very sensitive people
Poor
Air quality is unhealthy for sensitive groups. The general population is not likely to be affected in this range
Very poor
Air quality is unhealthy, and everyone may begin to experience health effects. People from sensitive groups
may experience more serious health effects
Recent Trends
-
Improving
-
Stable
-
Deteriorating
-
Unclear
Confidence
-
Adequate: Adequate high-quality evidence and high level of consensus
-
Somewhat adequate: Adequate high-quality evidence or high level of consensus
-
Limited: Limited evidence or limited consensus
-
Very limited: Limited evidence and limited consensus
-
Low: Evidence and consensus too low to make an assessment
Comparability
-
Comparable: Grade and trend are comparable to the previous assessment
-
Somewhat comparable: Grade and trend are somewhat comparable to the previous assessment
-
Not comparable: Grade and trend are not comparable to the previous assessment
-
Not previously assessed
Comments
Nil.