Chapra vs Tumkur
Side-by-side air quality comparison between Chapra 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
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Chapra averaged an AQI of 149 while Tumkur averaged 88 — a 61-point (69%) gap, with Chapra the more polluted and Tumkur the cleaner of the two. On 449 days when both cities reported, Tumkur was cleaner on 336 of them; the average daily gap was 97 AQI points.
Seasonality & days
Chapra peaks in January, while Tumkur peaks in December. Chapra logged 2.4% Severe days and 26.8% Good-or-Satisfactory days; Tumkur was 0% Severe and 54% Good-or-Satisfactory. Longest clean-air streaks: Chapra 14 days, Tumkur 20 days.
Year-over-year progress
Chapra has improved by 181 AQI points (54.8%) from 2021 to 2024; Tumkur has improved by 69 AQI points (43.9%) over the same window. The worst recorded day for Chapra reached AQI 452 at Darshan Nagar (BSPCB) on 2022-12-20; Tumkur hit AQI 355 at Thimmalapura (KSPCB) on 2023-02-15.
Station-level disparity
Chapra spans 1 CPCB stations with a 0-point spread (min 195, max 195); Tumkur spans 1 stations with a 0-point spread (min 97, max 97).