Lucknow vs Shillong
Side-by-side air quality comparison between Lucknow and Shillong.
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 | Lucknow | Shillong |
|---|---|---|
| PM2.5(µg/m³) | 105.20 | 17.90 |
| PM10(µg/m³) | 155.50 | 21.40 |
| NO₂(µg/m³) | 59.70 | 3.10 |
| SO₂(µg/m³) | 25.50 | 6.20 |
| O₃(µg/m³) | 41.00 | 118.00 |
| CO(µg/m³) | 416.00 | 304.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Lucknow averaged an AQI of 127 while Shillong averaged 75 — a 52-point (69%) gap, with Lucknow the more polluted and Shillong the cleaner of the two. On 997 days when both cities reported, Shillong was cleaner on 979 of them; the average daily gap was 160 AQI points.
Seasonality & days
Lucknow peaks in November, while Shillong peaks in February. Lucknow logged 6.6% Severe days and 19.4% Good-or-Satisfactory days; Shillong was 0% Severe and 92% Good-or-Satisfactory. Longest clean-air streaks: Lucknow 45 days, Shillong 113 days.
Year-over-year progress
Lucknow has improved by 89 AQI points (41.2%) from 2016 to 2024; Shillong has worsened by 41 AQI points (120.6%) over the same window. The worst recorded day for Lucknow reached AQI 500 at Lalbagh (CPCB) on 2017-11-09; Shillong hit AQI 212 at Lumpyngngad Shillong (PCB) on 2024-02-19.
Station-level disparity
Lucknow spans 7 CPCB stations with a 119-point spread (min 97, max 216); Shillong spans 2 stations with a 2-point spread (min 42, max 44).
Verdict
🏆 Shillong has better air quality with an AQI of 30 compared to Lucknow's 251. That's a significant difference of 221 points.