Coimbatore vs Lucknow
Side-by-side air quality comparison between Coimbatore and Lucknow.
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 | Coimbatore | Lucknow |
|---|---|---|
| PM2.5(µg/m³) | 2.50 | 107.30 |
| PM10(µg/m³) | 3.00 | 189.50 |
| NO₂(µg/m³) | 4.60 | 83.80 |
| SO₂(µg/m³) | 2.00 | 28.40 |
| O₃(µg/m³) | 40.00 | 0.00 |
| CO(µg/m³) | 163.00 | 474.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Coimbatore averaged an AQI of 66 while Lucknow averaged 127 — a 61-point (92%) gap, with Lucknow the more polluted and Coimbatore the cleaner of the two. On 1005 days when both cities reported, Coimbatore was cleaner on 964 of them; the average daily gap was 142 AQI points.
Seasonality & days
Both cities see their worst air in November on average. Coimbatore logged 0% Severe days and 90.5% Good-or-Satisfactory days; Lucknow was 6.6% Severe and 19.4% Good-or-Satisfactory. Longest clean-air streaks: Coimbatore 32 days, Lucknow 45 days.
Year-over-year progress
Coimbatore has improved by 5 AQI points (7%) from 2019 to 2024; Lucknow has improved by 89 AQI points (41.2%) over the same window. The worst recorded day for Coimbatore reached AQI 279 at SIDCO Kurichi (TNPCB) on 2024-09-28; Lucknow hit AQI 500 at Lalbagh (CPCB) on 2017-11-09.
Station-level disparity
Coimbatore spans 2 CPCB stations with a 1-point spread (min 63, max 64); Lucknow spans 7 stations with a 119-point spread (min 97, max 216).
Verdict
🏆 Coimbatore has better air quality with an AQI of 4 compared to Lucknow's 258. That's a significant difference of 254 points.