Nārnaul vs Shillong
Side-by-side air quality comparison between Nārnaul and Shillong.
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 | Nārnaul | Shillong |
|---|---|---|
| PM2.5(µg/m³) | 45.40 | 17.90 |
| PM10(µg/m³) | 126.20 | 21.40 |
| NO₂(µg/m³) | 12.40 | 3.10 |
| SO₂(µg/m³) | 7.70 | 6.20 |
| O₃(µg/m³) | 86.00 | 118.00 |
| CO(µg/m³) | 365.00 | 304.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Nārnaul averaged an AQI of 94 while Shillong averaged 75 — a 19-point (25%) gap, with Nārnaul the more polluted and Shillong the cleaner of the two. On 886 days when both cities reported, Shillong was cleaner on 752 of them; the average daily gap was 84 AQI points.
Seasonality & days
Nārnaul peaks in November, while Shillong peaks in February. Nārnaul logged 0.1% Severe days and 40.8% Good-or-Satisfactory days; Shillong was 0% Severe and 92% Good-or-Satisfactory. Longest clean-air streaks: Nārnaul 63 days, Shillong 113 days.
Year-over-year progress
Nārnaul has improved by 37 AQI points (28.2%) from 2019 to 2024; Shillong has worsened by 41 AQI points (120.6%) over the same window. The worst recorded day for Nārnaul reached AQI 435 at Shastri Nagar (HSPCB) on 2023-11-16; Shillong hit AQI 212 at Lumpyngngad Shillong (PCB) on 2024-02-19.
Station-level disparity
Nārnaul spans 1 CPCB stations with a 0-point spread (min 130, max 130); Shillong spans 2 stations with a 2-point spread (min 42, max 44).
Verdict
🏆 Shillong has better air quality with an AQI of 30 compared to Nārnaul's 118. That's a significant difference of 88 points.