Dindigul vs Shillong
Side-by-side air quality comparison between Dindigul 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 | Dindigul | Shillong |
|---|---|---|
| PM2.5(µg/m³) | 20.10 | 17.90 |
| PM10(µg/m³) | 21.60 | 21.40 |
| NO₂(µg/m³) | 20.20 | 3.10 |
| SO₂(µg/m³) | 3.40 | 6.20 |
| O₃(µg/m³) | 23.00 | 118.00 |
| CO(µg/m³) | 209.00 | 304.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Dindigul averaged an AQI of 61 while Shillong averaged 75 — a 14-point (23%) gap, with Shillong the more polluted and Dindigul the cleaner of the two. On 101 days when both cities reported, Shillong was cleaner on 82 of them; the average daily gap was 42 AQI points.
Seasonality & days
Both cities see their worst air in February on average. Dindigul logged 0% Severe days and 67.3% Good-or-Satisfactory days; Shillong was 0% Severe and 92% Good-or-Satisfactory. Longest clean-air streaks: Dindigul 22 days, Shillong 113 days.
Year-over-year progress
Dindigul has improved by 29 AQI points (32.2%) from 2022 to 2024; Shillong has worsened by 41 AQI points (120.6%) over the same window. The worst recorded day for Dindigul reached AQI 352 at Mendonsa Colony (TNPCB) on 2023-03-12; Shillong hit AQI 212 at Lumpyngngad Shillong (PCB) on 2024-02-19.
Station-level disparity
Dindigul spans 1 CPCB stations with a 0-point spread (min 102, max 102); 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 Dindigul's 34.