Howrah vs Ujjain
Side-by-side air quality comparison between Howrah 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, Howrah averaged an AQI of 126 while Ujjain averaged 116 — a 10-point (9%) gap, with Howrah the more polluted and Ujjain the cleaner of the two. On 2051 days when both cities reported, Ujjain was cleaner on 1064 of them; the average daily gap was 74 AQI points.
Seasonality & days
Howrah peaks in December, while Ujjain peaks in November. Howrah logged 0.7% Severe days and 48.7% Good-or-Satisfactory days; Ujjain was 0.1% Severe and 33.800000000000004% Good-or-Satisfactory. Longest clean-air streaks: Howrah 120 days, Ujjain 67 days.
Year-over-year progress
Howrah has improved by 32 AQI points (20.3%) from 2016 to 2024; Ujjain has improved by 71 AQI points (38%) over the same window. The worst recorded day for Howrah reached AQI 500 at Ghusuri (WBPCB) on 2017-04-15; Ujjain hit AQI 500 at Mahakaleshwar Temple (MPPCB) on 2023-03-10.
Station-level disparity
Howrah spans 5 CPCB stations with a 116-point spread (min 111, max 227); Ujjain spans 1 stations with a 0-point spread (min 131, max 131).