Sagar vs Shillong
Side-by-side air quality comparison between Sagar 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 | Sagar | Shillong |
|---|---|---|
| PM2.5(µg/m³) | 24.90 | 17.90 |
| PM10(µg/m³) | 41.00 | 21.40 |
| NO₂(µg/m³) | 11.80 | 3.10 |
| SO₂(µg/m³) | 4.10 | 6.20 |
| O₃(µg/m³) | 61.00 | 118.00 |
| CO(µg/m³) | 211.00 | 304.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Sagar averaged an AQI of 96 while Shillong averaged 75 — a 21-point (28%) gap, with Sagar the more polluted and Shillong the cleaner of the two. On 856 days when both cities reported, Shillong was cleaner on 714 of them; the average daily gap was 49 AQI points.
Seasonality & days
Sagar peaks in November, while Shillong peaks in February. Sagar logged 0% Severe days and 69.9% Good-or-Satisfactory days; Shillong was 0% Severe and 92% Good-or-Satisfactory. Longest clean-air streaks: Sagar 57 days, Shillong 113 days.
Year-over-year progress
Sagar has worsened by 24 AQI points (33.3%) from 2020 to 2024; Shillong has worsened by 41 AQI points (120.6%) over the same window. The worst recorded day for Sagar reached AQI 347 at Civil Lines (MPPCB) on 2024-12-25; Shillong hit AQI 212 at Lumpyngngad Shillong (PCB) on 2024-02-19.
Station-level disparity
Sagar spans 2 CPCB stations with a 45-point spread (min 73, max 118); 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 Sagar's 42.