Bilaspur vs Karur
Side-by-side air quality comparison between Bilaspur and Karur.
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 | Karur |
|---|---|---|
| PM2.5(µg/m³) | 34.80 | 3.80 |
| PM10(µg/m³) | 43.70 | 4.40 |
| NO₂(µg/m³) | 28.50 | 7.30 |
| SO₂(µg/m³) | 18.50 | 2.70 |
| O₃(µg/m³) | 38.00 | 37.00 |
| CO(µg/m³) | 477.00 | 117.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Bilaspur averaged an AQI of 61 while Karur averaged 71 — a 10-point (16%) gap, with Karur the more polluted and Bilaspur the cleaner of the two. On 68 days when both cities reported, Karur was cleaner on 43 of them; the average daily gap was 27 AQI points.
Seasonality & days
Both cities see their worst air in December on average. Bilaspur logged 0% Severe days and 88% Good-or-Satisfactory days; Karur was 0% Severe and 80.3% Good-or-Satisfactory. Longest clean-air streaks: Bilaspur 66 days, Karur 34 days.
Year-over-year progress
The worst recorded day for Bilaspur reached AQI 259 at Mangala (NTPC) on 2023-03-09; Karur hit AQI 149 at Kamadenu Nagar (TNPCB) on 2024-11-26.
Station-level disparity
Bilaspur spans 1 CPCB stations with a 0-point spread (min 69, max 69); Karur spans 1 stations with a 0-point spread (min 71, max 71).
Verdict
🏆 Karur has better air quality with an AQI of 6 compared to Bilaspur's 59. That's a significant difference of 53 points.