Gangtok vs Ramanathapuram
Side-by-side air quality comparison between Gangtok and Ramanathapuram.
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 | Ramanathapuram |
|---|---|---|
| PM2.5(µg/m³) | 35.70 | 5.60 |
| PM10(µg/m³) | 45.20 | 8.30 |
| NO₂(µg/m³) | 8.70 | 4.20 |
| SO₂(µg/m³) | 2.60 | 4.00 |
| O₃(µg/m³) | 112.00 | 31.00 |
| CO(µg/m³) | 461.00 | 143.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Gangtok averaged an AQI of 48 while Ramanathapuram averaged 42 — a 6-point (14%) gap, with Gangtok the more polluted and Ramanathapuram the cleaner of the two. On 591 days when both cities reported, Ramanathapuram was cleaner on 339 of them; the average daily gap was 28 AQI points.
Seasonality & days
Gangtok peaks in March, while Ramanathapuram peaks in January. Gangtok logged 0% Severe days and 96.2% Good-or-Satisfactory days; Ramanathapuram was 0% Severe and 94.4% Good-or-Satisfactory. Longest clean-air streaks: Gangtok 94 days, Ramanathapuram 46 days.
Year-over-year progress
Gangtok has worsened by 14 AQI points (41.2%) from 2022 to 2024; Ramanathapuram has improved by 18 AQI points (30%) over the same window. The worst recorded day for Gangtok reached AQI 264 at Zero Point GICI (SSPCB) on 2023-01-16; Ramanathapuram hit AQI 246 at Chalai Bazaar (TNPCB) on 2022-12-07.
Station-level disparity
Gangtok spans 1 CPCB stations with a 0-point spread (min 50, max 50); Ramanathapuram spans 1 stations with a 0-point spread (min 48, max 48).
Verdict
🏆 Ramanathapuram has better air quality with an AQI of 9 compared to Gangtok's 60. That's a significant difference of 51 points.