Indore vs Shillong
Side-by-side air quality comparison between Indore 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 | Indore | Shillong |
|---|---|---|
| PM2.5(µg/m³) | 31.30 | 17.90 |
| PM10(µg/m³) | 47.80 | 21.40 |
| NO₂(µg/m³) | 7.10 | 3.10 |
| SO₂(µg/m³) | 15.10 | 6.20 |
| O₃(µg/m³) | 66.00 | 118.00 |
| CO(µg/m³) | 251.00 | 304.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Indore averaged an AQI of 84 while Shillong averaged 75 — a 9-point (12%) gap, with Indore the more polluted and Shillong the cleaner of the two. On 972 days when both cities reported, Shillong was cleaner on 916 of them; the average daily gap was 72 AQI points.
Seasonality & days
Indore peaks in November, while Shillong peaks in February. Indore logged 0% Severe days and 45.099999999999994% Good-or-Satisfactory days; Shillong was 0% Severe and 92% Good-or-Satisfactory. Longest clean-air streaks: Indore 65 days, Shillong 113 days.
Year-over-year progress
Indore has improved by 47 AQI points (35.9%) from 2019 to 2024; Shillong has worsened by 41 AQI points (120.6%) over the same window. The worst recorded day for Indore reached AQI 359 at Maguda Nagar (IMC) on 2024-09-18; Shillong hit AQI 212 at Lumpyngngad Shillong (PCB) on 2024-02-19.
Station-level disparity
Indore spans 6 CPCB stations with a 69-point spread (min 52, max 121); 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 Indore's 53.