Dindigul vs Gwalior
Side-by-side air quality comparison between Dindigul and Gwalior.
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 | Gwalior |
|---|---|---|
| PM2.5(µg/m³) | 18.20 | 40.70 |
| PM10(µg/m³) | 19.70 | 97.60 |
| NO₂(µg/m³) | 28.00 | 14.70 |
| SO₂(µg/m³) | 2.70 | 5.70 |
| O₃(µg/m³) | 1.00 | 49.00 |
| CO(µg/m³) | 215.00 | 247.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Dindigul averaged an AQI of 61 while Gwalior averaged 136 — a 75-point (123%) gap, with Gwalior the more polluted and Dindigul the cleaner of the two. On 171 days when both cities reported, Dindigul was cleaner on 159 of them; the average daily gap was 103 AQI points.
Seasonality & days
Dindigul peaks in February, while Gwalior peaks in November. Dindigul logged 0% Severe days and 67.3% Good-or-Satisfactory days; Gwalior was 0.4% Severe and 31.5% Good-or-Satisfactory. Longest clean-air streaks: Dindigul 22 days, Gwalior 47 days.
Year-over-year progress
Dindigul has improved by 29 AQI points (32.2%) from 2022 to 2024; Gwalior has improved by 12 AQI points (8.1%) over the same window. The worst recorded day for Dindigul reached AQI 352 at Mendonsa Colony (TNPCB) on 2023-03-12; Gwalior hit AQI 450 at City Center (MPPCB) on 2021-11-09.
Station-level disparity
Dindigul spans 1 CPCB stations with a 0-point spread (min 102, max 102); Gwalior spans 4 stations with a 53-point spread (min 112, max 165).
Verdict
🏆 Dindigul has better air quality with an AQI of 30 compared to Gwalior's 98. That's a significant difference of 68 points.