Navi Mumbai vs Salem
Side-by-side air quality comparison between Navi Mumbai and Salem.
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 | Navi Mumbai | Salem |
|---|---|---|
| PM2.5(µg/m³) | 21.70 | 13.70 |
| PM10(µg/m³) | 43.70 | 16.40 |
| NO₂(µg/m³) | 16.10 | 15.30 |
| SO₂(µg/m³) | 24.00 | 9.30 |
| O₃(µg/m³) | 31.00 | 37.00 |
| CO(µg/m³) | 157.00 | 240.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Navi Mumbai averaged an AQI of 107 while Salem averaged 68 — a 39-point (57%) gap, with Navi Mumbai the more polluted and Salem the cleaner of the two. On 207 days when both cities reported, Salem was cleaner on 202 of them; the average daily gap was 110 AQI points.
Seasonality & days
Navi Mumbai peaks in January, while Salem peaks in April. Navi Mumbai logged 0.2% Severe days and 43.6% Good-or-Satisfactory days; Salem was 0% Severe and 87.1% Good-or-Satisfactory. Longest clean-air streaks: Navi Mumbai 57 days, Salem 17 days.
Year-over-year progress
Navi Mumbai has worsened by 29 AQI points (37.2%) from 2016 to 2024; Salem has improved by 5 AQI points (6.8%) over the same window. The worst recorded day for Navi Mumbai reached AQI 477 at Airoli Navi (MPCB) on 2019-04-14; Salem hit AQI 214 at Sona College of Technology (TNPCB) on 2024-01-15.
Station-level disparity
Navi Mumbai spans 8 CPCB stations with a 37-point spread (min 93, max 130); Salem spans 1 stations with a 0-point spread (min 73, max 73).
Verdict
🏆 Salem has better air quality with an AQI of 23 compared to Navi Mumbai's 44.