Bilaspur vs Silchar
Side-by-side air quality comparison between Bilaspur 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 | Bilaspur | Silchar |
|---|---|---|
| PM2.5(µg/m³) | 34.80 | 53.00 |
| PM10(µg/m³) | 43.70 | 63.80 |
| NO₂(µg/m³) | 28.50 | 13.90 |
| SO₂(µg/m³) | 18.50 | 7.50 |
| O₃(µg/m³) | 38.00 | 95.00 |
| CO(µg/m³) | 477.00 | 276.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Bilaspur averaged an AQI of 61 while Silchar averaged 52 — a 9-point (17%) gap, with Bilaspur the more polluted and Silchar the cleaner of the two. On 557 days when both cities reported, Silchar was cleaner on 382 of them; the average daily gap was 29 AQI points.
Seasonality & days
Bilaspur peaks in December, while Silchar peaks in February. Bilaspur logged 0% Severe days and 88% Good-or-Satisfactory days; Silchar was 0% Severe and 100% Good-or-Satisfactory. Longest clean-air streaks: Bilaspur 66 days, Silchar 87 days.
Year-over-year progress
Bilaspur has improved by 22 AQI points (26.5%) from 2021 to 2024; Silchar has worsened by 11 AQI points (26.8%) over the same window. The worst recorded day for Bilaspur reached AQI 259 at Mangala (NTPC) on 2023-03-09; Silchar hit AQI 89 at Tarapur (PCBA) on 2023-04-29.
Station-level disparity
Bilaspur spans 1 CPCB stations with a 0-point spread (min 69, max 69); Silchar spans 1 stations with a 0-point spread (min 47, max 47).
Verdict
🏆 Bilaspur has better air quality with an AQI of 59 compared to Silchar's 89.