Census region | Census division | AQS-based PM2.5concentration ranges | |||||||
---|---|---|---|---|---|---|---|---|---|
(0–8)μg/m3 | (9–14)μg/m3 | (15–35)μg/m3 | (>35) μg/m3 | ||||||
Median absolute difference(μg/m3) * | Median relative difference(%)α | Median absolute difference(μg/m3)* | Median relative difference(%)α | Median absolute difference(μg/m3)* | Median relative difference(%)α | Median absolute difference(μg/m3)* | Median relative difference(%) α | ||
Midwest | East North Central | 0.2 | 4.8 | 0.0 | −0.4 | −1.0 | −4.6 | −3.4 | −8.4 |
(−0.2 – 0.8) | (−3.9 – 16.0) | (−0.8 – 0.7) | (−7.2 – 6.7) | (−2.4 – 0.2) | (−11 – 1.0) | (−6.5 – -1.5) | (−14.5 – -3.6) | ||
West North Central | 0.2 | 3.5 | −0.3 | −3.3 | −1.3 | −6.7 | −3.3 | −7.5 | |
(−0.3 – 0.6) | (−6.2 – 13.9) | (−1.2 – 0.4) | (−11.0 – 3.6) | (−2.7 – -0.2) | (−13 – -1.1) | (−4.9 – -1.6) | (−12.9 – -3.9) | ||
Northeast | Middle Atlantic | 0.3 | 6.8 | 0.0 | 0.0 | −1.1 | −5.1 | −5.3 | −12.2 |
(−0.2 – 1) | (−3.7 – 20.1) | (−1 – 0.9) | (−8.9 – 8.3) | (−2.9 – 0.4) | (−13.6 – 1.8) | (−12.3 – -2.3) | (−28.3 – -6.1) | ||
New England | 0.1 | 1.4 | −0.6 | −5.2 | −1.6 | −7.9 | −3.7 | −10.2 | |
(−0.5 – 0.6) | (−9.7 – 14.1) | (−1.5 – 0.3) | (−14.6 – 3.1) | (−3.4 – -0.1) | (−16.6 – -0.6) | (−7.9 – -2.3) | (−19.6 – -6.1) | ||
South | East South Central | 0.3 | 5.8 | 0.0 | 0.3 | −0.8 | −4.0 | −3.2 | −7.7 |
(−0.2 – 1) | (−3.1 – 17.4) | (−0.7 – 0.8) | (−6.3 – 7.2) | (−2.0 – 0.3) | (−9.8 – 1.6) | (−6.6 – -1.3) | (−15.4 – -3.2) | ||
South Atlantic | 0.1 | 2.0 | 0.0 | −0.3 | −0.7 | −3.3 | −2.9 | −7.5 | |
(−0.4 – 0.7) | (−7.4 – 12.1) | (−0.8 – 0.7) | (−7.7 – 7.0) | (−1.9 – 0.4) | (−9.5 – 2.4) | (−5.5 – -1.1) | (−14.4 – -2.9) | ||
West South Central | 0.1 | 2.2 | −0.3 | −2.9 | −1.0 | −5.0 | −4.7 | −12.5 | |
(−0.4 – 0.7) | (−5.8 – 12) | (−1.1 – 0.5) | (−10.1 – 4.3) | (−2.4 – 0.1) | (−12.1 – 0.6) | (−9.4 – -2.1) | (−24.1 – -5.3) | ||
West | Mountain | 0.1 | 1.7 | −1.4 | −13.7 | −4.4 | −23.3 | −15.2 | −35.3 |
(−0.5 – 0.7) | (−9.5 – 17.7) | (−2.7 – -0.3) | (−25.8 – -3.5) | (−8.5 – -1.9) | (−42.4 – -9.9) | (−25.2 – -8.2) | (−55.7 – -16.2) | ||
Pacific | 0.1 | 2.9 | −0.6 | −5.9 | −2.9 | −14.1 | −10.9 | −22.3 | |
(−0.5 – 0.8) | (−9.6 – 17.6) | (−1.7 – 0.5) | (−15.8 – 4.5) | (−5.9 – -0.8) | (−28.9 – -4.0) | (−20.7 – -5.8) | (−43.1 – -12.5) |