Shillong vs Ujjain
Side-by-side air quality comparison between Shillong and Ujjain.
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
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Shillong averaged an AQI of 75 while Ujjain averaged 116 — a 41-point (55%) gap, with Ujjain the more polluted and Shillong the cleaner of the two. On 941 days when both cities reported, Shillong was cleaner on 904 of them; the average daily gap was 83 AQI points.
Seasonality & days
Shillong peaks in February, while Ujjain peaks in November. Shillong logged 0% Severe days and 92% Good-or-Satisfactory days; Ujjain was 0.1% Severe and 33.800000000000004% Good-or-Satisfactory. Longest clean-air streaks: Shillong 113 days, Ujjain 67 days.
Year-over-year progress
Shillong has worsened by 41 AQI points (120.6%) from 2019 to 2024; Ujjain has improved by 71 AQI points (38%) over the same window. The worst recorded day for Shillong reached AQI 212 at Lumpyngngad Shillong (PCB) on 2024-02-19; Ujjain hit AQI 500 at Mahakaleshwar Temple (MPPCB) on 2023-03-10.
Station-level disparity
Shillong spans 2 CPCB stations with a 2-point spread (min 42, max 44); Ujjain spans 1 stations with a 0-point spread (min 131, max 131).