Gwalior vs Surat
Side-by-side air quality comparison between Gwalior and Surat.
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 | Surat |
|---|---|---|
| CO(ppb) | 540.06 | 234.00 |
| NO2(ppb) | 29.02 | 8.60 |
| O3(ppb) | 24.88 | 64.00 |
| PM10(µg/m³) | 119.94 | 56.50 |
| PM2.5(µg/m³) | 30.68 | 25.70 |
| SO2(ppb) | 4.58 | 30.10 |
| NH3(ppb) | 9.99 | — |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Gwalior averaged an AQI of 136 while Surat averaged 83 — a 53-point (64%) gap, with Gwalior the more polluted and Surat the cleaner of the two. On 333 days when both cities reported, Surat was cleaner on 288 of them; the average daily gap was 99 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; Surat was 0% Severe and 55.9% Good-or-Satisfactory. Longest clean-air streaks: Gwalior 47 days, Surat 55 days.
Year-over-year progress
Gwalior has improved by 12 AQI points (8.1%) from 2020 to 2024; Surat has improved by 139 AQI points (62.6%) over the same window. The worst recorded day for Gwalior reached AQI 450 at City Center (MPPCB) on 2021-11-09; Surat hit AQI 384 at Science Center (SMC) on 2023-08-19.
Station-level disparity
Gwalior spans 4 CPCB stations with a 53-point spread (min 112, max 165); Surat spans 1 stations with a 0-point spread (min 123, max 123).
Verdict
🏆 Surat has better air quality with an AQI of 57 compared to Gwalior's 114. That's a significant difference of 57 points.