Puducherry vs Silchar
Side-by-side air quality comparison between Puducherry 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 | Puducherry | Silchar |
|---|---|---|
| PM2.5(µg/m³) | 12.20 | 53.00 |
| PM10(µg/m³) | 14.50 | 63.80 |
| NO₂(µg/m³) | 18.70 | 13.90 |
| SO₂(µg/m³) | 9.00 | 7.50 |
| O₃(µg/m³) | 33.00 | 95.00 |
| CO(µg/m³) | 402.00 | 276.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Puducherry averaged an AQI of 55 while Silchar averaged 52 — a 3-point (6%) gap, with Puducherry the more polluted and Silchar the cleaner of the two. On 664 days when both cities reported, Silchar was cleaner on 397 of them; the average daily gap was 19 AQI points.
Seasonality & days
Puducherry peaks in December, while Silchar peaks in February. Puducherry logged 0% Severe days and 95.4% Good-or-Satisfactory days; Silchar was 0% Severe and 100% Good-or-Satisfactory. Longest clean-air streaks: Puducherry 117 days, Silchar 87 days.
Year-over-year progress
Puducherry has worsened by 1 AQI points (1.9%) from 2021 to 2024; Silchar has worsened by 11 AQI points (26.8%) over the same window. The worst recorded day for Puducherry reached AQI 274 at Jawahar Nagar (PPCC) on 2022-10-25; Silchar hit AQI 89 at Tarapur (PCBA) on 2023-04-29.
Station-level disparity
Puducherry spans 1 CPCB stations with a 0-point spread (min 56, max 56); Silchar spans 1 stations with a 0-point spread (min 47, max 47).
Verdict
🏆 Puducherry has better air quality with an AQI of 20 compared to Silchar's 89. That's a significant difference of 69 points.