Gwalior vs Perundurai
Side-by-side air quality comparison between Gwalior and Perundurai.
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 | Gwalior | Perundurai |
|---|---|---|
| PM2.5(µg/m³) | 39.10 | 9.20 |
| PM10(µg/m³) | 89.40 | 10.30 |
| NO₂(µg/m³) | 12.30 | 10.50 |
| SO₂(µg/m³) | 6.20 | 3.60 |
| O₃(µg/m³) | 61.00 | 35.00 |
| CO(µg/m³) | 248.00 | 172.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Gwalior averaged an AQI of 136 while Perundurai averaged 75 — a 61-point (81%) gap, with Gwalior the more polluted and Perundurai the cleaner of the two. On 57 days when both cities reported, Perundurai was cleaner on 57 of them; the average daily gap was 154 AQI points.
Seasonality & days
Both cities see their worst air in November on average. Gwalior logged 0.4% Severe days and 31.5% Good-or-Satisfactory days; Perundurai was 0% Severe and 80.7% Good-or-Satisfactory. Longest clean-air streaks: Gwalior 47 days, Perundurai 13 days.
Year-over-year progress
The worst recorded day for Gwalior reached AQI 450 at City Center (MPPCB) on 2021-11-09; Perundurai hit AQI 153 at SIPCOT Industrial Park (TNPCB) on 2024-11-12.
Station-level disparity
Gwalior spans 4 CPCB stations with a 53-point spread (min 112, max 165); Perundurai spans 1 stations with a 0-point spread (min 75, max 75).
Verdict
🏆 Perundurai has better air quality with an AQI of 15 compared to Gwalior's 90. That's a significant difference of 75 points.