Buyer guide · Mumbai and Thane
Air quality in Mumbai and Thane by area: a year of readings from every station
A year of PM2.5 and PM10 from every government monitoring station in Mumbai and Thane, ranked cleanest first, month by month, with the areas we cover and how to judge the air near a flat.
By Ashwin · Updated · Not legal advice
- Good
- Satisfactory
- Moderate
- Poor
- Very poor or worse
Khindipada-Bhandup West · Mumbai · IITM
67 Satisfactory over the year
Above 100 on 23% of 304 days with readings.
Monthly averages, Oct 2025 to Sept 2026.
Tap a station for its year. Dashed rings: too few days to rank. Map: © OpenStreetMap contributors (ODbL).
Every station, cleanest first
| Station | Average | Days over 100 | Worst month |
|---|---|---|---|
| Mulund West MPCB | 65 Satisfactory | 18% | Apr 133 |
| Kandivali West BMC | 65 Satisfactory | 19% | Feb 111 |
| Khindipada-Bhandup West IITM | 67 Satisfactory | 23% | Nov 105 |
| Byculla BMC | 69 Satisfactory | 20% | Dec 135 |
| Worli MPCB | 73 Satisfactory | 20% | Dec 142 |
| Mindspace-Malad West MPCB | 73 Satisfactory | 28% | Oct 116 |
| Chembur MPCB | 76 Satisfactory | 29% | Dec 137 |
| Sion MPCB | 82 Satisfactory | 30% | Feb 123 |
| Kherwadi Bandra East MPCB | 82 Satisfactory | 34% | Dec 137 |
| Borivali East IITM | 83 Satisfactory | 34% | Nov 144 |
| Siddharth Nagar-Worli IITM | 85 Satisfactory | 30% | Dec 156 |
| Malad West IITM | 86 Satisfactory | 37% | Nov 166 |
| Bandra Kurla Complex MPCB | 87 Satisfactory | 36% | Nov 151 |
| Chakala-Andheri East IITM | 91 Satisfactory | 40% | Nov 154 |
| Ghatkopar BMC | 92 Satisfactory | 41% | Dec 155 |
| Deonar IITM | 107 Moderate | 51% | Nov 210 |
| Shivaji Nagar BMC | 107 Moderate | 42% | Nov 234 |
| Station | Average | Days over 100 | Worst month |
|---|---|---|---|
| Upvan Fort MPCB | 79 Satisfactory | 26% | Oct 133 |
| Kasarvadavali MPCB | 81 Satisfactory | 27% | Dec 128 |
| Station | Average | Days over 100 | Worst month |
|---|---|---|---|
| Sector-2E Kalamboli MPCB | 78 Satisfactory | 30% | Nov 135 |
| Kopripada-Vashi MPCB | 87 Satisfactory | 34% | Feb 141 |
| CBD Belapur MPCB | 91 Satisfactory | 39% | Nov 149 |
| Mahape MPCB | 101 Moderate | 45% | Feb 145 |
| Station | Average | Days over 100 | Worst month |
|---|---|---|---|
| Bhayandar West MPCB | 69 Satisfactory | 30% | Nov 115 |
| Station | Average | Days over 100 | Worst month |
|---|---|---|---|
| Gokul Nagar MPCB | 91 Satisfactory | 41% | Dec 139 |
Average of the daily index, October 2025 to September 2026. Stations with fewer than 240 days of usable readings are left out of the ranking: Colaba (164 days), Sewri (214 days), Kurla (231 days), Chhatrapati Shivaji Intl. Airport (T2) (208 days), Powai (227 days), Pimpleshwar Mandir (81 days), Borivali East (195 days).
The areas we cover
Month by month
| Month | Mumbai | Thane |
|---|---|---|
| Oct 2025 | 100 · Satisfactory | 102 · Moderate |
| Nov 2025 | 128 · Moderate | 101 · Moderate |
| Dec 2025 | 135 · Moderate | 113 · Moderate |
| Jan 2026 | 114 · Moderate | 108 · Moderate |
| Feb 2026 | 111 · Moderate | 101 · Moderate |
| Mar 2026 | 88 · Satisfactory | 91 · Satisfactory |
| Apr 2026 | 78 · Satisfactory | 93 · Satisfactory |
| May 2026 | 52 · Satisfactory | 69 · Satisfactory |
| Jun 2026 | 51 · Satisfactory | 66 · Satisfactory |
| Jul 2026 | 41 · Good | 42 · Good |
| Aug 2026 | 43 · Good | 40 · Good |
| Sept 2026 | 43 · Good | 52 · Satisfactory |
The median station’s monthly average in each city. Bands are CPCB’s: up to 50 Good, 100 Satisfactory, 200 Moderate, 300 Poor, 400 Very poor, above that Severe.
1Check a site yourself
A station average hides what’s next to a building: a highway, a quarry, a construction site or a landfill can matter more than the station a few kilometres away.
- Time
- 15 min
- Cost
- Free
How to check
- Find the station nearest the project in the tables above; live readings are on CPCB’s and MPCB’s sites and the SAMEER app.
- Look at the bad months, not today: they show the worst a site gets.
- On a map, look within a kilometre for highways, industry, quarries and big construction sites.
- In Kanjurmarg, check the distance to the dumping ground: our landfill guide has it for each project.
What it doesn’t tell you: This index uses PM2.5 and PM10 only; the official AQI also uses other gases, so it can read differently. Days when a station’s readings were incomplete or inconsistent are left out.
Quick answers
What is Mumbai’s air quality like over a year?
In the year to September 2026, the typical government station in Mumbai averaged 82 on a PM-based index, in CPCB’s Satisfactory band. November to February averaged in the Moderate band, and July to September in the Good band.
Which area of Mumbai has the cleanest air?
Of the stations with a full year of readings, Mulund West and Kandivali West had the lowest average (65), and Deonar and Shivaji Nagar the highest (107), in the year to September 2026.
What is the air quality in Thane like?
Thane’s Upvan Fort station averaged 79 and Kasarvadavali 81 in the year to September 2026, both in CPCB’s Satisfactory band, with the worst months from October to February.
Which months have the worst air in Mumbai and Thane?
November to February, with December the worst month for the typical Mumbai station. July to September is the cleanest.
Where can I see live AQI for Mumbai and Thane?
On CPCB’s and MPCB’s websites and the SAMEER app, which show readings from each monitoring station by the hour.
The checklist
| Check | Where | Time |
|---|---|---|
| Nearest station and its year | This page | 5 min |
| Readings in the bad months | SAMEER app or CPCB | 5 min |
| Sources within 1 km | A map of the site | 10 min |
Air quality for a project
Each report gives the nearest station’s year, month by month, alongside the permits, the land and what flats sold for. Each project’s preview is free.
Sources
- Daily PM2.5 and PM10 averages from 32 stations run by MPCB, BMC and IITM, via OpenAQ, Oct 2025 – Sep 2026.
- Central Pollution Control Board, National Air Quality Index breakpoints.