Balasore vs Shillong
Side-by-side air quality comparison between Balasore and Shillong.
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 | Shillong |
|---|---|---|
| PM2.5(µg/m³) | 66.60 | 17.90 |
| PM10(µg/m³) | 73.60 | 21.40 |
| NO₂(µg/m³) | 21.00 | 3.10 |
| SO₂(µg/m³) | 9.20 | 6.20 |
| O₃(µg/m³) | 64.00 | 118.00 |
| CO(µg/m³) | 525.00 | 304.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Balasore averaged an AQI of 131 while Shillong averaged 75 — a 56-point (75%) gap, with Balasore the more polluted and Shillong the cleaner of the two. On 193 days when both cities reported, Shillong was cleaner on 160 of them; the average daily gap was 87 AQI points.
Seasonality & days
Balasore peaks in January, while Shillong peaks in February. Balasore logged 0.2% Severe days and 42.9% Good-or-Satisfactory days; Shillong was 0% Severe and 92% Good-or-Satisfactory. Longest clean-air streaks: Balasore 29 days, Shillong 113 days.
Year-over-year progress
Balasore has improved by 58 AQI points (30.7%) from 2023 to 2024; Shillong has worsened by 41 AQI points (120.6%) over the same window. The worst recorded day for Balasore reached AQI 406 at Kalidaspur (OSPCB) on 2024-01-16; Shillong hit AQI 212 at Lumpyngngad Shillong (PCB) on 2024-02-19.
Station-level disparity
Balasore spans 1 CPCB stations with a 0-point spread (min 141, max 141); Shillong spans 2 stations with a 2-point spread (min 42, max 44).
Verdict
🏆 Shillong has better air quality with an AQI of 30 compared to Balasore's 123. That's a significant difference of 93 points.