Air quality
Air quality in Thāne today
Updated
Unhealthy (US AQI 177) Everyone should reduce prolonged or heavy exertion outdoors; sensitive groups should avoid it and keep windows closed. Model estimate for Sun, Oct 25, 11:30 pm (18:00 UTC).
Live AQI, PM2.5, PM10 and ozone for Thāne, Maharashtra, India, with a 48-hour forecast and the best time to be outside.
- US AQI now
- 177 Unhealthy
- PM2.5
- 57 µg/m³ 3.8× WHO 24-h guideline
- PM10
- 66 µg/m³
- Ozone
- 161 µg/m³
- Dominant pollutant
- ozone sub-index 177
- Best hour tomorrow
- 11:30 am AQI 154
- European AQI
- 81
Air quality in Thāne right now
Right now the modelled US Air Quality Index for Thāne, Maharashtra, India is 177, which falls in the "Unhealthy" band (up to 200). Everyone should reduce prolonged or heavy exertion outdoors; sensitive groups should avoid it and keep windows closed.
The index is driven mainly by ozone, whose own sub-index is 177. Ozone usually peaks in the afternoon on sunny days and falls back after sunset.
PM2.5 is 57 µg/m³, 3.8 times the WHO 24-hour guideline of 15 µg/m³; PM10 is 66 µg/m³ against a guideline of 45; ozone is 161 µg/m³ (above the WHO 8-hour level of 100); nitrogen dioxide is 12 µg/m³ (below the 24-hour guideline of 25).
Also this hour: carbon monoxide 460 µg/m³.
Thāne AQI forecast: next 48 hours
Over the next 24 hours the AQI is forecast to range from 154 around Mon 11:30 am to 271 around Mon 6:30 pm, from "Unhealthy" at best to "Very Unhealthy" at worst.
The following day is expected to be cleaner, averaging about 174 against 196 for the next 24 hours.
| Local time (Asia/Kolkata) | US AQI | Category | PM2.5 µg/m³ | PM10 µg/m³ | Ozone µg/m³ |
|---|---|---|---|---|---|
| Sun 11:30 pm | 177 | Unhealthy | 57.2 | 66 | 161 |
| Mon 2:30 am | 162 | Unhealthy | 54.2 | 63 | 134 |
| Mon 5:30 am | 160 | Unhealthy | 48.2 | 57 | 99 |
| Mon 8:30 am | 157 | Unhealthy | 55.2 | 63 | 97 |
| Mon 11:30 am | 154 | Unhealthy | 61.9 | 72 | 300 |
| Mon 2:30 pm | 206 | Very Unhealthy | 75.9 | 84 | 424 |
| Mon 5:30 pm | 263 | Very Unhealthy | 54.7 | 63 | 267 |
| Mon 8:30 pm | 263 | Very Unhealthy | 33.3 | 44 | 157 |
| Mon 11:30 pm | 213 | Very Unhealthy | 34.2 | 41 | 142 |
| Tue 2:30 am | 140 | Unhealthy for Sensitive Groups | 40 | 46 | 102 |
| Tue 5:30 am | 135 | Unhealthy for Sensitive Groups | 31 | 37 | 71 |
| Tue 8:30 am | 129 | Unhealthy for Sensitive Groups | 37.3 | 43 | 77 |
| Tue 11:30 am | 124 | Unhealthy for Sensitive Groups | 48.3 | 55 | 275 |
| Tue 2:30 pm | 174 | Unhealthy | 58.1 | 65 | 350 |
| Tue 5:30 pm | 236 | Very Unhealthy | 46 | 56 | 184 |
| Tue 8:30 pm | 229 | Very Unhealthy | 40.5 | 50 | 161 |
| Tue 11:30 pm | 175 | Unhealthy | 29.5 | 34 | 106 |
Every third hour of the CAMS forecast via Open-Meteo. US AQI uses rolling averages (24 h for particles, 8 h for ozone), so it moves more slowly than the hourly concentrations.
Best time to be outside in Thāne tomorrow
Between 6 am and 9 pm local time, the cleanest air tomorrow is forecast around 11:30 am (AQI 154, Unhealthy) and the worst around 6:30 pm (AQI 271). That is a swing of 117 points, so a run or walk around 11:30 am is noticeably better.
Thāne vs the rest of India
Across 260 India cities we track, the average US AQI right now is 116 (Unhealthy for Sensitive Groups). Thāne at 177 is 61 points worse than average.
It ranks 250 of 260 from cleanest to most polluted; the cleanest is Dindigul (26) and the most polluted Karnāl (346).
For context, the median across 3,909 cities worldwide is 57.
Air quality in cities near Thāne
| City | Distance | US AQI | Category | PM2.5 µg/m³ |
|---|---|---|---|---|
| Airoli | 6 km | 177 | Unhealthy | 57.2 |
| Borivli | 12 km | 177 | Unhealthy | 57.2 |
| Dombivali | 13 km | 177 | Unhealthy | 57.2 |
| Bhiwandi | 15 km | 177 | Unhealthy | 57.2 |
| Mumbai | 16 km | 177 | Unhealthy | 57.2 |
| Bhayandar | 17 km | 177 | Unhealthy | 57.2 |
| Kalyān | 19 km | 170 | Unhealthy | 62.9 |
| Ulhasnagar | 20 km | 170 | Unhealthy | 62.9 |
Model vs measured
We found no measured PM2.5 sensor cell within 25 km of Thāne, so the numbers on this page are model estimates. Models capture regional pollution well but can miss very local sources such as a busy road or a nearby fire.
Wildfire smoke
PM2.5 is forecast to reach 76 µg/m³ in the next 24 hours while NASA satellites detected 47 fire hotspots within 300 km in the last day (nearest about 14 km away). Smoke is a likely contributor: keep windows closed, run an air purifier or HVAC filter, and check the fire map before heading out.
Advice for sensitive groups
At 177, children, older adults, pregnant people and anyone with asthma, COPD or heart disease should limit time outdoors, especially strenuous activity. A well-fitted N95/FFP2 mask cuts particle exposure; it does not filter ozone.
What the US AQI numbers mean
| US AQI | Category | What it means |
|---|---|---|
| 0-50 | Good | Air quality is satisfactory and poses little or no risk; a good time for outdoor activity. |
| 51-100 | Moderate | Acceptable for most people. Unusually sensitive people should consider shortening long or heavy exertion outdoors. |
| 101-150 | Unhealthy for Sensitive Groups | People with heart or lung disease, older adults, children and teens should cut back on prolonged or heavy exertion outdoors. |
| 151-200 | Unhealthy | Everyone should reduce prolonged or heavy exertion outdoors; sensitive groups should avoid it and keep windows closed. |
| 201-300 | Very Unhealthy | Health alert: everyone should avoid prolonged or heavy exertion outdoors, and sensitive groups should stay indoors. |
| 301-500 | Hazardous | Emergency conditions: everyone should avoid all outdoor physical activity and stay indoors with filtered air if possible. The scale tops out at 500; heavier dust or smoke is shown as 500. |
Values on this page are modelled by CAMS (Copernicus) and served by Open-Meteo; they are estimates for the area around the city centre, not readings from an official monitor.
Nearby cities
More for Thāne
Air quality elsewhere
Data: Open-Meteo Air Quality API, Copernicus Atmosphere Monitoring Service (CAMS), NASA FIRMS.