Shillong vs Sirsa
Side-by-side air quality comparison between Shillong and Sirsa.
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 | Shillong | Sirsa |
|---|---|---|
| PM2.5(µg/m³) | 17.90 | 70.50 |
| PM10(µg/m³) | 21.40 | 238.00 |
| NO₂(µg/m³) | 3.10 | 27.50 |
| SO₂(µg/m³) | 6.20 | 8.40 |
| O₃(µg/m³) | 118.00 | 54.00 |
| CO(µg/m³) | 304.00 | 316.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Shillong averaged an AQI of 75 while Sirsa averaged 115 — a 40-point (53%) gap, with Sirsa the more polluted and Shillong the cleaner of the two. On 918 days when both cities reported, Shillong was cleaner on 820 of them; the average daily gap was 88 AQI points.
Seasonality & days
Shillong peaks in February, while Sirsa peaks in November. Shillong logged 0% Severe days and 92% Good-or-Satisfactory days; Sirsa was 0.5% Severe and 41.300000000000004% Good-or-Satisfactory. Longest clean-air streaks: Shillong 113 days, Sirsa 40 days.
Year-over-year progress
Shillong has worsened by 41 AQI points (120.6%) from 2019 to 2024; Sirsa has improved by 48 AQI points (29.4%) over the same window. The worst recorded day for Shillong reached AQI 212 at Lumpyngngad Shillong (PCB) on 2024-02-19; Sirsa hit AQI 462 at F-Block (HSPCB) on 2019-11-01.
Station-level disparity
Shillong spans 2 CPCB stations with a 2-point spread (min 42, max 44); Sirsa spans 1 stations with a 0-point spread (min 132, max 132).
Verdict
🏆 Shillong has better air quality with an AQI of 30 compared to Sirsa's 192. That's a significant difference of 162 points.