Ahmedabad vs Silchar
Side-by-side air quality comparison between Ahmedabad 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 | Ahmedabad | Silchar |
|---|---|---|
| PM2.5(µg/m³) | 25.50 | 29.00 |
| PM10(µg/m³) | 51.00 | 38.20 |
| NO₂(µg/m³) | 5.20 | 5.90 |
| SO₂(µg/m³) | 6.20 | 5.60 |
| O₃(µg/m³) | 51.00 | 107.00 |
| CO(µg/m³) | 173.00 | 271.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Ahmedabad averaged an AQI of 117 while Silchar averaged 52 — a 65-point (125%) gap, with Ahmedabad the more polluted and Silchar the cleaner of the two. On 692 days when both cities reported, Silchar was cleaner on 690 of them; the average daily gap was 121 AQI points.
Seasonality & days
Ahmedabad peaks in November, while Silchar peaks in February. Ahmedabad logged 0.1% Severe days and 23.7% Good-or-Satisfactory days; Silchar was 0% Severe and 100% Good-or-Satisfactory. Longest clean-air streaks: Ahmedabad 25 days, Silchar 87 days.
Year-over-year progress
Ahmedabad has worsened by 52 AQI points (80%) from 2016 to 2024; Silchar has worsened by 11 AQI points (26.8%) over the same window. The worst recorded day for Ahmedabad reached AQI 430 at Raikhad (IITM) on 2023-03-17; Silchar hit AQI 89 at Tarapur (PCBA) on 2023-04-29.
Station-level disparity
Ahmedabad spans 9 CPCB stations with a 44-point spread (min 95, max 139); Silchar spans 1 stations with a 0-point spread (min 47, max 47).
Verdict
🏆 Silchar has better air quality with an AQI of 48 compared to Ahmedabad's 52.