Ambala vs Silchar
Side-by-side air quality comparison between Ambala 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 | Ambala | Silchar |
|---|---|---|
| PM2.5(µg/m³) | 44.90 | 35.20 |
| PM10(µg/m³) | 117.80 | 45.10 |
| NO₂(µg/m³) | 13.20 | 10.60 |
| SO₂(µg/m³) | 11.50 | 6.70 |
| O₃(µg/m³) | 100.00 | 100.00 |
| CO(µg/m³) | 547.00 | 270.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Ambala averaged an AQI of 94 while Silchar averaged 52 — a 42-point (81%) gap, with Ambala the more polluted and Silchar the cleaner of the two. On 618 days when both cities reported, Silchar was cleaner on 546 of them; the average daily gap was 52 AQI points.
Seasonality & days
Ambala peaks in November, while Silchar peaks in February. Ambala logged 0.2% Severe days and 46.5% Good-or-Satisfactory days; Silchar was 0% Severe and 100% Good-or-Satisfactory. Longest clean-air streaks: Ambala 44 days, Silchar 87 days.
Year-over-year progress
Ambala has improved by 52 AQI points (35.6%) from 2019 to 2024; Silchar has worsened by 11 AQI points (26.8%) over the same window. The worst recorded day for Ambala reached AQI 452 at Patti Mehar (HSPCB) on 2020-11-04; Silchar hit AQI 89 at Tarapur (PCBA) on 2023-04-29.
Station-level disparity
Ambala spans 1 CPCB stations with a 0-point spread (min 126, max 126); Silchar spans 1 stations with a 0-point spread (min 47, max 47).
Verdict
🏆 Silchar has better air quality with an AQI of 59 compared to Ambala's 113. That's a significant difference of 54 points.