World-class air quality dispersion modelling, AQI calculation & health impact assessment for Indian regulatory compliance
Enter 24-hr average concentrations in ug/m3. Get Indian NAQI, US EPA AQI & UK DAQI instantly.
AERMOD-like single-source dispersion with Briggs plume rise, SCREEN3 worst-case, and regulatory comparison.
WHO/IHME GBD dose-response curves for mortality and morbidity estimation.
CPCB NAAQS 2009, WHO 2021, EU Air Quality Directive, US EPA NAAQS
| Pollutant | NAAQS India (24-hr) | WHO 2021 (24-hr) | EU | US EPA | Unit |
|---|---|---|---|---|---|
| PM2.5 | 60 | 15 | 25 (annual) | 35 | ug/m3 |
| PM10 | 100 | 45 | 50 | 150 | ug/m3 |
| SO2 | 80 | 40 | 125 | 196 (1-hr) | ug/m3 |
| NOx/NO2 | 80 | 25 | 200 (1-hr) | 188 (1-hr) | ug/m3 |
| CO | 4 (8-hr) | 4 | 10 (8-hr) | 10 (8-hr) | mg/m3 |
| O3 | 180 (1-hr) | 100 (8-hr) | 120 (8-hr) | 137 (8-hr) | ug/m3 |
| NH3 | 400 | -- | -- | -- | ug/m3 |
| Benzene | 5 (annual) | 1.7 | 5 (annual) | -- | ug/m3 |
| BaP | 1 (annual) | 0.12 | 1 (annual) | -- | ng/m3 |
| Lead | 1.0 | -- | 0.5 (annual) | 0.15 | ug/m3 |
| Class | Name | Conditions |
|---|---|---|
| A | Very Unstable | Strong insolation, wind <2 m/s |
| B | Moderately Unstable | Moderate insolation, wind 2-3 m/s |
| C | Slightly Unstable | Weak insolation, wind 3-5 m/s |
| D | Neutral | Overcast any wind, or strong wind |
| E | Slightly Stable | Night, moderate cloud, wind 2-3 m/s |
| F | Stable | Clear night, wind <2 m/s |
| Sector | PM (mg/Nm3) | SO2 | NOx | Regulation |
|---|---|---|---|---|
| Thermal Power | 30 | 100 | 100 | MOEFCC 2015 |
| Cement | 30 | 100 | 600 | MOEFCC 2014 |
| Iron & Steel | 50 | -- | -- | MOEFCC 2012 |
| Refinery | 50 | 50 | -- | MOEFCC |
| Waste Incinerator | 50 | 50 | 400 | CPCB BMW |
| Brick Kiln | 250 | -- | -- | CPCB |
| DG Set (>800kW) | -- | -- | 1792 | CPCB 2013 |