Surat vs Tumkur
Side-by-side air quality comparison between Surat and Tumkur.
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 | Surat | Tumkur |
|---|---|---|
| PM2.5(µg/m³) | 24.70 | 3.40 |
| PM10(µg/m³) | 45.90 | 4.50 |
| NO₂(µg/m³) | 24.20 | 6.40 |
| SO₂(µg/m³) | 41.00 | 1.30 |
| O₃(µg/m³) | 32.00 | 35.00 |
| CO(µg/m³) | 261.00 | 124.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Surat averaged an AQI of 83 while Tumkur averaged 88 — a 5-point (6%) gap, with Tumkur the more polluted and Surat the cleaner of the two. On 407 days when both cities reported, Tumkur was cleaner on 213 of them; the average daily gap was 65 AQI points.
Seasonality & days
Surat peaks in November, while Tumkur peaks in December. Surat logged 0% Severe days and 55.9% Good-or-Satisfactory days; Tumkur was 0% Severe and 54% Good-or-Satisfactory. Longest clean-air streaks: Surat 55 days, Tumkur 20 days.
Year-over-year progress
Surat has improved by 139 AQI points (62.6%) from 2022 to 2024; Tumkur has improved by 69 AQI points (43.9%) over the same window. The worst recorded day for Surat reached AQI 384 at Science Center (SMC) on 2023-08-19; Tumkur hit AQI 355 at Thimmalapura (KSPCB) on 2023-02-15.
Station-level disparity
Surat spans 1 CPCB stations with a 0-point spread (min 123, max 123); Tumkur spans 1 stations with a 0-point spread (min 97, max 97).
Verdict
🏆 Tumkur has better air quality with an AQI of 6 compared to Surat's 46.