Chicago AQ

@chicagoaq.bsky.social

Monitoring Air Quality Index (AQI) pollutants (PM 2.5, PM10, NO₂, SO₂ O₃, CO) measured in The Loop, Chicago. Managed by @nikhunder.com

At 3 PM the AQI was 61 , the dominant pollutant was PM2.5 and the air quality is moderate PM2.5 = 61 or 14.11 µg/m³ PM10 = 26 or 28.3 µg/m³ NO₂ = 2 or 2 ppb SO₂ = 1 or 0.74 ppb O₃ = 36 or 38.51 ppb CO = 2 or 0.2 ppb

Chicago Air Quality Conditions

At 12 PM the AQI was 58 , the dominant pollutant was PM2.5 and the air quality is moderate PM2.5 = 58 or 15.49 µg/m³ PM10 = 17 or 29.9 µg/m³ NO₂ = 8 or 11 ppb SO₂ = 1 or 0.63 ppb O₃ = 21 or 15.68 ppb CO = 2 or 0.2 ppb

Chicago Air Quality Conditions

At 9 AM the AQI was 56 , the dominant pollutant was PM2.5 and the air quality is moderate PM2.5 = 56 or 14.61 µg/m³ PM10 = 24 or 26.1 µg/m³ NO₂ = 17 or 18 ppb SO₂ = 1 or 0.53 ppb O₃ = 14 or 14.53 ppb CO = 2 or 0.2 ppb

Chicago Air Quality Conditions

At 6 AM the AQI was 56 , the dominant pollutant was PM2.5 and the air quality is moderate PM2.5 = 56 or 11.68 µg/m³ PM10 = 21 or 23.3 µg/m³ NO₂ = 8 or 8 ppb SO₂ = 1 or 0.54 ppb O₃ = 23 or 25.1 ppb CO = 2 or 0.2 ppb

Chicago Air Quality Conditions

At 9 PM the AQI was 56 , the dominant pollutant was PM2.5 and the air quality is moderate PM2.5 = 56 or 11.39 µg/m³ PM10 = 17 or 18.1 µg/m³ NO₂ = 13 or 14 ppb SO₂ = 1 or 0.71 ppb O₃ = 42 or 45.48 ppb CO = 2 or 0.2 ppb

Chicago Air Quality Conditions

At 6 PM the AQI was 56 , the dominant pollutant was PM2.5 and the air quality is moderate PM2.5 = 56 or 13.5 µg/m³ PM10 = 36 or 38.5 µg/m³ NO₂ = 12 or 13 ppb SO₂ = 1 or 0.54 ppb O₃ = 50 or 53.72 ppb CO = 2 or 0.2 ppb

Chicago Air Quality Conditions

At 3 PM the AQI was 55 , the dominant pollutant was PM2.5 and the air quality is moderate PM2.5 = 55 or 11.35 µg/m³ PM10 = 18 or 19.2 µg/m³ NO₂ = 5 or 5 ppb SO₂ = 0 or 0.49 ppb O₃ = 44 or 48.35 ppb CO = 2 or 0.2 ppb

Chicago Air Quality Conditions

At 12 PM the AQI was 55 , the dominant pollutant was PM2.5 and the air quality is moderate PM2.5 = 55 or 10.3 µg/m³ PM10 = 24 or 26.3 µg/m³ NO₂ = 7 or 5 ppb SO₂ = 1 or 0.68 ppb O₃ = 19 or 30.76 ppb CO = 2 or 0.2 ppb

Chicago Air Quality Conditions

At 9 AM the AQI was 58 , the dominant pollutant was PM2.5 and the air quality is moderate PM2.5 = 58 or 14.28 µg/m³ PM10 = 37 or 39.8 µg/m³ NO₂ = 16 or 17 ppb SO₂ = 0 or 0.48 ppb O₃ = 6 or 6.39 ppb CO = 3 or 0.3 ppb

Chicago Air Quality Conditions

At 6 AM the AQI was 55 , the dominant pollutant was PM2.5 and the air quality is moderate PM2.5 = 55 or 12.18 µg/m³ PM10 = 30 or 32 µg/m³ NO₂ = 8 or 9 ppb SO₂ = 1 or 0.58 ppb O₃ = 13 or 13.91 ppb CO = 2 or 0.2 ppb

Chicago Air Quality Conditions

At 9 PM the AQI was 49 , the dominant pollutant was PM2.5 and the air quality is okay PM2.5 = 49 or 13.07 µg/m³ PM10 = 17 or 18.2 µg/m³ NO₂ = 15 or 16 ppb SO₂ = 0 or 0.28 ppb O₃ = 33 or 35.81 ppb CO = 2 or 0.2 ppb

Chicago Air Quality Conditions

At 6 PM the AQI was 54 , the dominant pollutant was PM2.5 and the air quality is moderate PM2.5 = 54 or 12.25 µg/m³ PM10 = 18 or 18.8 µg/m³ NO₂ = 9 or 10 ppb SO₂ = 1 or 0.71 ppb O₃ = 37 or 39.96 ppb CO = 1 or 0.1 ppb

Chicago Air Quality Conditions

At 3 PM the AQI was 55 , the dominant pollutant was PM2.5 and the air quality is moderate PM2.5 = 55 or 13.4 µg/m³ PM10 = 22 or 23.8 µg/m³ NO₂ = 6 or 6 ppb SO₂ = 4 or 3.29 ppb O₃ = 35 or 37.78 ppb CO = 2 or 0.2 ppb

Chicago Air Quality Conditions

At 12 PM the AQI was 52 , the dominant pollutant was PM2.5 and the air quality is moderate PM2.5 = 52 or 12.73 µg/m³ PM10 = 19 or 20.1 µg/m³ NO₂ = 10 or 9 ppb SO₂ = 1 or 1.38 ppb O₃ = 16 or 21.92 ppb CO = 2 or 0.2 ppb

Chicago Air Quality Conditions

At 9 AM the AQI was 47 , the dominant pollutant was PM2.5 and the air quality is okay PM2.5 = 47 or 11.49 µg/m³ PM10 = 19 or 19.7 µg/m³ NO₂ = 17 or 18 ppb SO₂ = 0 or 0.28 ppb O₃ = 9 or 10.5 ppb CO = 3 or 0.3 ppb

Chicago Air Quality Conditions

At 6 AM the AQI was 32 , the dominant pollutant was PM2.5 and the air quality is super PM2.5 = 32 or 8.28 µg/m³ PM10 = 16 or 17 µg/m³ NO₂ = 11 or 12 ppb SO₂ = 0 or 0.21 ppb O₃ = 19 or 21.16 ppb CO = 2 or 0.2 ppb

Chicago Air Quality Conditions

At 9 PM the AQI was 54 , the dominant pollutant was PM2.5 and the air quality is moderate PM2.5 = 54 or 12.52 µg/m³ PM10 = 19 or 19.9 µg/m³ NO₂ = 9 or 10 ppb SO₂ = 0 or 0.27 ppb O₃ = 23 or 24.8 ppb CO = 2 or 0.2 ppb

Chicago Air Quality Conditions

At 12 PM the AQI was 56 , the dominant pollutant was PM2.5 and the air quality is moderate PM2.5 = 56 or 14.06 µg/m³ PM10 = 16 or 17.2 µg/m³ NO₂ = 2 or 2 ppb SO₂ = 1 or 0.66 ppb O₃ = 32 or 35.27 ppb CO = 2 or 0.2 ppb

Chicago Air Quality Conditions

At 9 AM the AQI was 55 , the dominant pollutant was PM2.5 and the air quality is moderate PM2.5 = 55 or 11.37 µg/m³ PM10 = 15 or 16 µg/m³ NO₂ = 2 or NA ppb SO₂ = 1 or 0.92 ppb O₃ = 35 or 38.02 ppb CO = 2 or 0.2 ppb

Chicago Air Quality Conditions

At 6 AM the AQI was 54 , the dominant pollutant was PM2.5 and the air quality is moderate PM2.5 = 54 or 10.68 µg/m³ PM10 = 13 or 13.5 µg/m³ NO₂ = 2 or 2 ppb SO₂ = 1 or 0.81 ppb O₃ = 34 or 37.43 ppb CO = 2 or 0.2 ppb

Chicago Air Quality Conditions

At 9 PM the AQI was 54 , the dominant pollutant was PM2.5 and the air quality is moderate PM2.5 = 54 or 14.63 µg/m³ PM10 = 18 or 19.4 µg/m³ NO₂ = 6 or 6 ppb SO₂ = 0 or 0.41 ppb O₃ = 37 or 40.14 ppb CO = 2 or 0.2 ppb

Chicago Air Quality Conditions

At 6 PM the AQI was 56 , the dominant pollutant was PM2.5 and the air quality is moderate PM2.5 = 56 or 14.52 µg/m³ PM10 = 19 or 20.9 µg/m³ NO₂ = 6 or 6 ppb SO₂ = 1 or 0.81 ppb O₃ = 35 or 38.14 ppb CO = 2 or 0.2 ppb

Chicago Air Quality Conditions

At 12 PM the AQI was 52 , the dominant pollutant was PM2.5 and the air quality is moderate PM2.5 = 52 or 14.95 µg/m³ PM10 = 19 or 19.1 µg/m³ NO₂ = 8 or 7 ppb SO₂ = 0 or 0.56 ppb O₃ = 33 or 29.73 ppb CO = 2 or 0.2 ppb

Chicago Air Quality Conditions

At 9 AM the AQI was 54 , the dominant pollutant was PM2.5 and the air quality is moderate PM2.5 = 54 or 11.89 µg/m³ PM10 = 18 or 18.5 µg/m³ NO₂ = 4 or 4 ppb SO₂ = 1 or 0.65 ppb O₃ = 32 or 34.66 ppb CO = 2 or 0.2 ppb

Chicago Air Quality Conditions

At 6 AM the AQI was 54 , the dominant pollutant was PM2.5 and the air quality is moderate PM2.5 = 54 or 11.57 µg/m³ PM10 = 17 or 18 µg/m³ NO₂ = 4 or 4 ppb SO₂ = 0 or 0.49 ppb O₃ = 30 or 32.18 ppb CO = 2 or 0.2 ppb

Chicago Air Quality Conditions

At 9 PM the AQI was 44 , the dominant pollutant was PM2.5 and the air quality is okay PM2.5 = 44 or 7.01 µg/m³ PM10 = 11 or 12.3 µg/m³ NO₂ = 6 or 6 ppb SO₂ = 1 or 0.88 ppb O₃ = 33 or 36.38 ppb CO = 2 or 0.2 ppb

Chicago Air Quality Conditions

At 6 PM the AQI was 51 , the dominant pollutant was PM2.5 and the air quality is moderate PM2.5 = 51 or 9.08 µg/m³ PM10 = 19 or 19.8 µg/m³ NO₂ = 5 or 5 ppb SO₂ = 1 or 1.14 ppb O₃ = 31 or 33.93 ppb CO = 2 or 0.2 ppb

Chicago Air Quality Conditions

At 3 PM the AQI was 54 , the dominant pollutant was PM2.5 and the air quality is moderate PM2.5 = 54 or 8.91 µg/m³ PM10 = 25 or 26.8 µg/m³ NO₂ = 3 or 3 ppb SO₂ = 1 or 0.64 ppb O₃ = 36 or 39.34 ppb CO = 2 or 0.2 ppb

Chicago Air Quality Conditions

At 12 PM the AQI was 56 , the dominant pollutant was PM2.5 and the air quality is moderate PM2.5 = 56 or 12.86 µg/m³ PM10 = 29 or 31.1 µg/m³ NO₂ = 10 or 11 ppb SO₂ = 3 or NA ppb O₃ = 29 or 31.2 ppb CO = 2 or 0.2 ppb

Chicago Air Quality Conditions

At 9 AM the AQI was 58 , the dominant pollutant was PM2.5 and the air quality is moderate PM2.5 = 58 or 14.05 µg/m³ PM10 = 27 or 28.8 µg/m³ NO₂ = 22 or 23 ppb SO₂ = 1 or 1.03 ppb O₃ = 3 or 3.08 ppb CO = 2 or 0.2 ppb

Chicago Air Quality Conditions