Gangtok vs Perundurai
Side-by-side air quality comparison between Gangtok and Perundurai.
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 | Perundurai |
|---|---|---|
| PM2.5(µg/m³) | 28.90 | 5.70 |
| PM10(µg/m³) | 39.00 | 6.80 |
| NO₂(µg/m³) | 1.30 | 6.30 |
| SO₂(µg/m³) | 2.90 | 3.60 |
| O₃(µg/m³) | 150.00 | 50.00 |
| CO(µg/m³) | 258.00 | 190.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Gangtok averaged an AQI of 48 while Perundurai averaged 75 — a 27-point (56%) gap, with Perundurai the more polluted and Gangtok the cleaner of the two. On 24 days when both cities reported, Gangtok was cleaner on 16 of them; the average daily gap was 24 AQI points.
Seasonality & days
Gangtok peaks in March, while Perundurai peaks in November. Gangtok logged 0% Severe days and 96.2% Good-or-Satisfactory days; Perundurai was 0% Severe and 80.7% Good-or-Satisfactory. Longest clean-air streaks: Gangtok 94 days, Perundurai 13 days.
Year-over-year progress
The worst recorded day for Gangtok reached AQI 264 at Zero Point GICI (SSPCB) on 2023-01-16; Perundurai hit AQI 153 at SIPCOT Industrial Park (TNPCB) on 2024-11-12.
Station-level disparity
Gangtok spans 1 CPCB stations with a 0-point spread (min 50, max 50); Perundurai spans 1 stations with a 0-point spread (min 75, max 75).
Verdict
🏆 Perundurai has better air quality with an AQI of 10 compared to Gangtok's 48.