Guwahati vs Surat
Side-by-side air quality comparison between Guwahati 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 | Guwahati | Surat |
|---|---|---|
| PM2.5(µg/m³) | 31.90 | 25.70 |
| PM10(µg/m³) | 36.00 | 47.30 |
| NO₂(µg/m³) | 5.40 | 22.40 |
| SO₂(µg/m³) | 4.20 | 40.70 |
| O₃(µg/m³) | 97.00 | 35.00 |
| CO(µg/m³) | 393.00 | 266.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Guwahati averaged an AQI of 123 while Surat averaged 83 — a 40-point (48%) gap, with Guwahati the more polluted and Surat the cleaner of the two. On 604 days when both cities reported, Surat was cleaner on 401 of them; the average daily gap was 93 AQI points.
Seasonality & days
Guwahati peaks in January, while Surat peaks in November. Guwahati logged 0.1% Severe days and 44.9% Good-or-Satisfactory days; Surat was 0% Severe and 55.9% Good-or-Satisfactory. Longest clean-air streaks: Guwahati 105 days, Surat 55 days.
Year-over-year progress
Guwahati has worsened by 14 AQI points (12.8%) from 2019 to 2024; Surat has improved by 139 AQI points (62.6%) over the same window. The worst recorded day for Guwahati reached AQI 420 at Railway Colony (PCBA) on 2023-01-15; Surat hit AQI 384 at Science Center (SMC) on 2023-08-19.
Station-level disparity
Guwahati spans 4 CPCB stations with a 26-point spread (min 118, max 144); Surat spans 1 stations with a 0-point spread (min 123, max 123).
Verdict
🏆 Surat has better air quality with an AQI of 47 compared to Guwahati's 54.