Cuddalore vs Silchar
Side-by-side air quality comparison between Cuddalore and Silchar.
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 | Cuddalore | Silchar |
|---|---|---|
| PM2.5(µg/m³) | 13.10 | 53.70 |
| PM10(µg/m³) | 16.60 | 64.50 |
| NO₂(µg/m³) | 17.00 | 14.10 |
| SO₂(µg/m³) | 7.60 | 7.40 |
| O₃(µg/m³) | 36.00 | 94.00 |
| CO(µg/m³) | 507.00 | 289.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Cuddalore averaged an AQI of 52 while Silchar averaged 52 — a 0-point (0%) gap, with Silchar the more polluted and Cuddalore the cleaner of the two. On 307 days when both cities reported, Cuddalore was cleaner on 169 of them; the average daily gap was 27 AQI points.
Seasonality & days
Cuddalore peaks in January, while Silchar peaks in February. Cuddalore logged 0% Severe days and 90.6% Good-or-Satisfactory days; Silchar was 0% Severe and 100% Good-or-Satisfactory. Longest clean-air streaks: Cuddalore 34 days, Silchar 87 days.
Year-over-year progress
The worst recorded day for Cuddalore reached AQI 329 at Kudikadu (TNPCB) on 2024-04-05; Silchar hit AQI 89 at Tarapur (PCBA) on 2023-04-29.
Station-level disparity
Cuddalore spans 2 CPCB stations with a 11-point spread (min 46, max 57); Silchar spans 1 stations with a 0-point spread (min 47, max 47).
Verdict
🏆 Cuddalore has better air quality with an AQI of 22 compared to Silchar's 90. That's a significant difference of 68 points.