Ramanathapuram vs Siliguri
Side-by-side air quality comparison between Ramanathapuram and Siliguri.
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 | Ramanathapuram | Siliguri |
|---|---|---|
| PM2.5(µg/m³) | 5.10 | 60.30 |
| PM10(µg/m³) | 7.40 | 77.30 |
| NO₂(µg/m³) | 1.30 | 1.90 |
| SO₂(µg/m³) | 3.20 | 8.60 |
| O₃(µg/m³) | 66.00 | 173.00 |
| CO(µg/m³) | 133.00 | 401.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Ramanathapuram averaged an AQI of 42 while Siliguri averaged 81 — a 39-point (93%) gap, with Siliguri the more polluted and Ramanathapuram the cleaner of the two. On 387 days when both cities reported, Ramanathapuram was cleaner on 335 of them; the average daily gap was 45 AQI points.
Seasonality & days
Ramanathapuram peaks in January, while Siliguri peaks in February. Ramanathapuram logged 0% Severe days and 94.4% Good-or-Satisfactory days; Siliguri was 0.1% Severe and 61.8% Good-or-Satisfactory. Longest clean-air streaks: Ramanathapuram 46 days, Siliguri 180 days.
Year-over-year progress
Ramanathapuram has improved by 18 AQI points (30%) from 2022 to 2024; Siliguri has improved by 39 AQI points (32.5%) over the same window. The worst recorded day for Ramanathapuram reached AQI 246 at Chalai Bazaar (TNPCB) on 2022-12-07; Siliguri hit AQI 415 at Ward-32 Bapupara (WBPCB) on 2018-02-08.
Station-level disparity
Ramanathapuram spans 1 CPCB stations with a 0-point spread (min 48, max 48); Siliguri spans 1 stations with a 0-point spread (min 107, max 107).
Verdict
🏆 Ramanathapuram has better air quality with an AQI of 9 compared to Siliguri's 102. That's a significant difference of 93 points.