Bettiah vs Kolār
Side-by-side air quality comparison between Bettiah and Kolār.
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, Bettiah averaged an AQI of 127 while Kolār averaged 65 — a 62-point (95%) gap, with Bettiah the more polluted and Kolār the cleaner of the two. On 417 days when both cities reported, Kolār was cleaner on 350 of them; the average daily gap was 98 AQI points.
Seasonality & days
Bettiah peaks in November, while Kolār peaks in September. Bettiah logged 3.2% Severe days and 32.3% Good-or-Satisfactory days; Kolār was 0.9% Severe and 85.30000000000001% Good-or-Satisfactory. Longest clean-air streaks: Bettiah 20 days, Kolār 17 days.
Year-over-year progress
Bettiah has improved by 73 AQI points (36.5%) from 2021 to 2024; Kolār has improved by 56 AQI points (46.3%) over the same window. The worst recorded day for Bettiah reached AQI 470 at Kamalnath Nagar (BSPCB) on 2023-01-01; Kolār hit AQI 500 at Tamaka Ind Area (KSPCB) on 2018-09-18.
Station-level disparity
Bettiah spans 1 CPCB stations with a 0-point spread (min 173, max 173); Kolār spans 1 stations with a 0-point spread (min 71, max 71).