Asansol vs Nārnaul
Side-by-side air quality comparison between Asansol and Nārnaul.
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 | Asansol | Nārnaul |
|---|---|---|
| PM2.5(µg/m³) | 89.60 | 45.80 |
| PM10(µg/m³) | 95.50 | 120.10 |
| NO₂(µg/m³) | 48.70 | 21.00 |
| SO₂(µg/m³) | 82.10 | 7.10 |
| O₃(µg/m³) | 39.00 | 63.00 |
| CO(µg/m³) | 708.00 | 386.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Asansol averaged an AQI of 145 while Nārnaul averaged 94 — a 51-point (54%) gap, with Asansol the more polluted and Nārnaul the cleaner of the two. On 1485 days when both cities reported, Nārnaul was cleaner on 792 of them; the average daily gap was 66 AQI points.
Seasonality & days
Asansol peaks in December, while Nārnaul peaks in November. Asansol logged 0% Severe days and 43.3% Good-or-Satisfactory days; Nārnaul was 0.1% Severe and 40.8% Good-or-Satisfactory. Longest clean-air streaks: Asansol 44 days, Nārnaul 63 days.
Year-over-year progress
Asansol has worsened by 12 AQI points (9%) from 2018 to 2024; Nārnaul has improved by 37 AQI points (28.2%) over the same window. The worst recorded day for Asansol reached AQI 394 at Court Area (WBPCB) on 2022-12-13; Nārnaul hit AQI 435 at Shastri Nagar (HSPCB) on 2023-11-16.
Station-level disparity
Asansol spans 4 CPCB stations with a 40-point spread (min 123, max 163); Nārnaul spans 1 stations with a 0-point spread (min 130, max 130).
Verdict
🏆 Nārnaul has better air quality with an AQI of 114 compared to Asansol's 199. That's a significant difference of 85 points.