Howrah vs Navi Mumbai
Side-by-side air quality comparison between Howrah and Navi Mumbai.
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 Navi Mumbai averaged 107 — a 19-point (18%) gap, with Howrah the more polluted and Navi Mumbai the cleaner of the two. On 2216 days when both cities reported, Navi Mumbai was cleaner on 1170 of them; the average daily gap was 66 AQI points.
Seasonality & days
Howrah peaks in December, while Navi Mumbai peaks in January. Howrah logged 0.7% Severe days and 48.7% Good-or-Satisfactory days; Navi Mumbai was 0.2% Severe and 43.6% Good-or-Satisfactory. Longest clean-air streaks: Howrah 120 days, Navi Mumbai 57 days.
Year-over-year progress
Howrah has improved by 32 AQI points (20.3%) from 2016 to 2024; Navi Mumbai has worsened by 29 AQI points (37.2%) over the same window. The worst recorded day for Howrah reached AQI 500 at Ghusuri (WBPCB) on 2017-04-15; Navi Mumbai hit AQI 477 at Airoli Navi (MPCB) on 2019-04-14.
Station-level disparity
Howrah spans 5 CPCB stations with a 116-point spread (min 111, max 227); Navi Mumbai spans 8 stations with a 37-point spread (min 93, max 130).