Salem vs Thane
Side-by-side air quality comparison between Salem and Thane.
Live AQI from Open-Meteo CAMS (~45 km global model, updated hourly). Multi-year history from CPCB station data via aqinow.co pipeline (2016–2024, station-level daily records).
AQI Comparison
Pollutant-level comparison (PM2.5, PM10, O3, NO2, SO2, CO)▾
| Pollutant | Salem | Thane |
|---|---|---|
| PM2.5(µg/m³) | 13.70 | 17.50 |
| PM10(µg/m³) | 16.40 | 40.70 |
| NO₂(µg/m³) | 15.30 | 11.00 |
| SO₂(µg/m³) | 9.30 | 12.60 |
| O₃(µg/m³) | 37.00 | 42.00 |
| CO(µg/m³) | 240.00 | 171.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Salem averaged an AQI of 68 while Thane averaged 95 — a 27-point (40%) gap, with Thane the more polluted and Salem the cleaner of the two. On 148 days when both cities reported, Salem was cleaner on 114 of them; the average daily gap was 66 AQI points.
Seasonality & days
Salem peaks in April, while Thane peaks in January. Salem logged 0% Severe days and 87.1% Good-or-Satisfactory days; Thane was 0% Severe and 53.800000000000004% Good-or-Satisfactory. Longest clean-air streaks: Salem 17 days, Thane 99 days.
Year-over-year progress
The worst recorded day for Salem reached AQI 214 at Sona College of Technology (TNPCB) on 2024-01-15; Thane hit AQI 302 at Kasarvadavali (MPCB) on 2024-03-21.
Station-level disparity
Salem spans 1 CPCB stations with a 0-point spread (min 73, max 73); Thane spans 2 stations with a 9-point spread (min 90, max 99).
Verdict
🏆 Salem has better air quality with an AQI of 23 compared to Thane's 41.