Shillong vs Tumkur
Side-by-side air quality comparison between Shillong 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 | Shillong | Tumkur |
|---|---|---|
| PM2.5(µg/m³) | 20.40 | 3.70 |
| PM10(µg/m³) | 23.70 | 4.60 |
| NO₂(µg/m³) | 4.20 | 7.70 |
| SO₂(µg/m³) | 5.70 | 1.50 |
| O₃(µg/m³) | 99.00 | 32.00 |
| CO(µg/m³) | 305.00 | 124.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Shillong averaged an AQI of 75 while Tumkur averaged 88 — a 13-point (17%) gap, with Tumkur the more polluted and Shillong the cleaner of the two. On 174 days when both cities reported, Shillong was cleaner on 111 of them; the average daily gap was 63 AQI points.
Seasonality & days
Shillong peaks in February, while Tumkur peaks in December. Shillong logged 0% Severe days and 92% Good-or-Satisfactory days; Tumkur was 0% Severe and 54% Good-or-Satisfactory. Longest clean-air streaks: Shillong 113 days, Tumkur 20 days.
Year-over-year progress
Shillong has worsened by 41 AQI points (120.6%) from 2019 to 2024; Tumkur has improved by 69 AQI points (43.9%) over the same window. The worst recorded day for Shillong reached AQI 212 at Lumpyngngad Shillong (PCB) on 2024-02-19; Tumkur hit AQI 355 at Thimmalapura (KSPCB) on 2023-02-15.
Station-level disparity
Shillong spans 2 CPCB stations with a 2-point spread (min 42, max 44); 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 Shillong's 34.