Guwahati vs Tumkur
Side-by-side air quality comparison between Guwahati 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 | Guwahati | Tumkur |
|---|---|---|
| PM2.5(µg/m³) | 31.90 | 3.40 |
| PM10(µg/m³) | 36.00 | 4.50 |
| NO₂(µg/m³) | 5.40 | 6.40 |
| SO₂(µg/m³) | 4.20 | 1.30 |
| O₃(µg/m³) | 97.00 | 35.00 |
| CO(µg/m³) | 393.00 | 124.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Guwahati averaged an AQI of 123 while Tumkur averaged 88 — a 35-point (40%) gap, with Guwahati the more polluted and Tumkur the cleaner of the two. On 537 days when both cities reported, Tumkur was cleaner on 403 of them; the average daily gap was 75 AQI points.
Seasonality & days
Guwahati peaks in January, while Tumkur peaks in December. Guwahati logged 0.1% Severe days and 44.9% Good-or-Satisfactory days; Tumkur was 0% Severe and 54% Good-or-Satisfactory. Longest clean-air streaks: Guwahati 105 days, Tumkur 20 days.
Year-over-year progress
Guwahati has worsened by 14 AQI points (12.8%) from 2019 to 2024; Tumkur has improved by 69 AQI points (43.9%) over the same window. The worst recorded day for Guwahati reached AQI 420 at Railway Colony (PCBA) on 2023-01-15; Tumkur hit AQI 355 at Thimmalapura (KSPCB) on 2023-02-15.
Station-level disparity
Guwahati spans 4 CPCB stations with a 26-point spread (min 118, max 144); 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 Guwahati's 54.