Gangtok vs Katni
Side-by-side air quality comparison between Gangtok and Katni.
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 | Gangtok | Katni |
|---|---|---|
| PM2.5(µg/m³) | 30.30 | 27.90 |
| PM10(µg/m³) | 38.60 | 76.10 |
| NO₂(µg/m³) | 1.10 | 0.50 |
| SO₂(µg/m³) | 2.70 | 4.30 |
| O₃(µg/m³) | 150.00 | 129.00 |
| CO(µg/m³) | 264.00 | 181.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Gangtok averaged an AQI of 48 while Katni averaged 105 — a 57-point (119%) gap, with Katni the more polluted and Gangtok the cleaner of the two. On 725 days when both cities reported, Gangtok was cleaner on 663 of them; the average daily gap was 77 AQI points.
Seasonality & days
Gangtok peaks in March, while Katni peaks in November. Gangtok logged 0% Severe days and 96.2% Good-or-Satisfactory days; Katni was 0% Severe and 39.3% Good-or-Satisfactory. Longest clean-air streaks: Gangtok 94 days, Katni 62 days.
Year-over-year progress
Gangtok has worsened by 14 AQI points (41.2%) from 2022 to 2024; Katni has improved by 93 AQI points (47%) over the same window. The worst recorded day for Gangtok reached AQI 264 at Zero Point GICI (SSPCB) on 2023-01-16; Katni hit AQI 350 at Gole Bazar (MPPCB) on 2019-11-01.
Station-level disparity
Gangtok spans 1 CPCB stations with a 0-point spread (min 50, max 50); Katni spans 1 stations with a 0-point spread (min 137, max 137).
Verdict
🏆 Gangtok has better air quality with an AQI of 51 compared to Katni's 77.