Haldia vs Kolār
Side-by-side air quality comparison between Haldia 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, Haldia averaged an AQI of 90 while Kolār averaged 65 — a 25-point (38%) gap, with Haldia the more polluted and Kolār the cleaner of the two. On 422 days when both cities reported, Kolār was cleaner on 231 of them; the average daily gap was 43 AQI points.
Seasonality & days
Haldia peaks in December, while Kolār peaks in September. Haldia logged 0% Severe days and 65.4% Good-or-Satisfactory days; Kolār was 0.9% Severe and 85.30000000000001% Good-or-Satisfactory. Longest clean-air streaks: Haldia 51 days, Kolār 17 days.
Year-over-year progress
Haldia has worsened by 8 AQI points (9.8%) from 2023 to 2024; Kolār has improved by 56 AQI points (46.3%) over the same window. The worst recorded day for Haldia reached AQI 322 at Priyambada Housing Estate (WBPCB) on 2024-11-26; Kolār hit AQI 500 at Tamaka Ind Area (KSPCB) on 2018-09-18.
Station-level disparity
Haldia spans 1 CPCB stations with a 0-point spread (min 86, max 86); Kolār spans 1 stations with a 0-point spread (min 71, max 71).