Bilaspur vs Kolār
Side-by-side air quality comparison between Bilaspur 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
Pollutant-level comparison (PM2.5, PM10, O3, NO2, SO2, CO)▾
| Pollutant | Bilaspur | Kolār |
|---|---|---|
| PM2.5(µg/m³) | 34.80 | 5.90 |
| PM10(µg/m³) | 43.70 | 7.20 |
| NO₂(µg/m³) | 28.50 | 10.90 |
| SO₂(µg/m³) | 18.50 | 4.70 |
| O₃(µg/m³) | 38.00 | 35.00 |
| CO(µg/m³) | 477.00 | 189.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Bilaspur averaged an AQI of 61 while Kolār averaged 65 — a 4-point (7%) gap, with Kolār the more polluted and Bilaspur the cleaner of the two. On 521 days when both cities reported, Bilaspur was cleaner on 269 of them; the average daily gap was 34 AQI points.
Seasonality & days
Bilaspur peaks in December, while Kolār peaks in September. Bilaspur logged 0% Severe days and 88% Good-or-Satisfactory days; Kolār was 0.9% Severe and 85.30000000000001% Good-or-Satisfactory. Longest clean-air streaks: Bilaspur 66 days, Kolār 17 days.
Year-over-year progress
Bilaspur has improved by 22 AQI points (26.5%) from 2021 to 2024; Kolār has improved by 56 AQI points (46.3%) over the same window. The worst recorded day for Bilaspur reached AQI 259 at Mangala (NTPC) on 2023-03-09; Kolār hit AQI 500 at Tamaka Ind Area (KSPCB) on 2018-09-18.
Station-level disparity
Bilaspur spans 1 CPCB stations with a 0-point spread (min 69, max 69); Kolār spans 1 stations with a 0-point spread (min 71, max 71).
Verdict
🏆 Kolār has better air quality with an AQI of 10 compared to Bilaspur's 59.