Howrah vs Ramanathapuram
Side-by-side air quality comparison between Howrah and Ramanathapuram.
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 Ramanathapuram averaged 42 — a 84-point (200%) gap, with Howrah the more polluted and Ramanathapuram the cleaner of the two. On 409 days when both cities reported, Ramanathapuram was cleaner on 379 of them; the average daily gap was 118 AQI points.
Seasonality & days
Howrah peaks in December, while Ramanathapuram peaks in January. Howrah logged 0.7% Severe days and 48.7% Good-or-Satisfactory days; Ramanathapuram was 0% Severe and 94.4% Good-or-Satisfactory. Longest clean-air streaks: Howrah 120 days, Ramanathapuram 46 days.
Year-over-year progress
Howrah has improved by 32 AQI points (20.3%) from 2016 to 2024; Ramanathapuram has improved by 18 AQI points (30%) over the same window. The worst recorded day for Howrah reached AQI 500 at Ghusuri (WBPCB) on 2017-04-15; Ramanathapuram hit AQI 246 at Chalai Bazaar (TNPCB) on 2022-12-07.
Station-level disparity
Howrah spans 5 CPCB stations with a 116-point spread (min 111, max 227); Ramanathapuram spans 1 stations with a 0-point spread (min 48, max 48).