Hapur vs Kolār
Side-by-side air quality comparison between Hapur 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 | Hapur | Kolār |
|---|---|---|
| PM2.5(µg/m³) | 71.90 | 5.90 |
| PM10(µg/m³) | 97.30 | 7.20 |
| NO₂(µg/m³) | 36.60 | 10.90 |
| SO₂(µg/m³) | 11.50 | 4.70 |
| O₃(µg/m³) | 36.00 | 35.00 |
| CO(µg/m³) | 589.00 | 189.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Hapur averaged an AQI of 142 while Kolār averaged 65 — a 77-point (118%) gap, with Hapur the more polluted and Kolār the cleaner of the two. On 1011 days when both cities reported, Kolār was cleaner on 850 of them; the average daily gap was 99 AQI points.
Seasonality & days
Hapur peaks in November, while Kolār peaks in September. Hapur logged 1.9% Severe days and 36.2% Good-or-Satisfactory days; Kolār was 0.9% Severe and 85.30000000000001% Good-or-Satisfactory. Longest clean-air streaks: Hapur 55 days, Kolār 17 days.
Year-over-year progress
Hapur has improved by 197 AQI points (58.1%) from 2018 to 2024; Kolār has improved by 56 AQI points (46.3%) over the same window. The worst recorded day for Hapur reached AQI 477 at Anand Vihar (UPPCB) on 2019-10-31; Kolār hit AQI 500 at Tamaka Ind Area (KSPCB) on 2018-09-18.
Station-level disparity
Hapur spans 1 CPCB stations with a 0-point spread (min 159, max 159); 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 Hapur's 140. That's a significant difference of 130 points.