PM₁₀

(µg/m³)

PM_2.5

(µg/m³)

CO

(ppm)

SO₂

(ppm)

NO₂

(ppm)

AQI

Level of Health Concern

0 - 54

0.0 - 15.4

0.0 - 4.4

0.000 - 0.034

-

0 - 50

Good

55 - 154

15.5 - 40.4

4.5 - 9.4

0.035 - 0.144

-

51 - 100

Moderate

155 - 254

40.5 - 65.4

9.5 - 12.4

0.145 - 0.224

-

101 - 150

Unhealthy for sensitive group

255 - 354

65.5 - 150.4

12.5 - 15.4

0.225 - 0.304

-

151 - 200

Unhealthy

355 - 424

150.5 - 250.4

15.5 - 30.4

0.305 - 0.604

0.65 - 1.24

201 - 300

Very unhealthy

425 - 504

250.5 - 350.4

30.5 - 40.4

0.605 - 0.804

1.25 - 1.64

301 - 400

Hazardous

505 - 604

350.4 - 500.4

40.5 - 50.4

0.805 - 1.004

1.65 - 2.04

401 - 500

Hazardous