Balasore vs Salem
Side-by-side air quality comparison between Balasore 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 | Balasore | Salem |
|---|---|---|
| PM2.5(µg/m³) | 66.60 | 13.70 |
| PM10(µg/m³) | 73.60 | 16.40 |
| NO₂(µg/m³) | 21.00 | 15.30 |
| SO₂(µg/m³) | 9.20 | 9.30 |
| O₃(µg/m³) | 64.00 | 37.00 |
| CO(µg/m³) | 525.00 | 240.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Balasore averaged an AQI of 131 while Salem averaged 68 — a 63-point (93%) gap, with Balasore the more polluted and Salem the cleaner of the two. On 194 days when both cities reported, Salem was cleaner on 169 of them; the average daily gap was 88 AQI points.
Seasonality & days
Balasore peaks in January, while Salem peaks in April. Balasore logged 0.2% Severe days and 42.9% Good-or-Satisfactory days; Salem was 0% Severe and 87.1% Good-or-Satisfactory. Longest clean-air streaks: Balasore 29 days, Salem 17 days.
Year-over-year progress
Balasore has improved by 58 AQI points (30.7%) from 2023 to 2024; Salem has improved by 5 AQI points (6.8%) over the same window. The worst recorded day for Balasore reached AQI 406 at Kalidaspur (OSPCB) on 2024-01-16; Salem hit AQI 214 at Sona College of Technology (TNPCB) on 2024-01-15.
Station-level disparity
Balasore spans 1 CPCB stations with a 0-point spread (min 141, max 141); 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 Balasore's 123. That's a significant difference of 100 points.