Howrah vs Tirupati
Side-by-side air quality comparison between Howrah and Tirupati.
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 Tirupati averaged 75 — a 51-point (68%) gap, with Howrah the more polluted and Tirupati the cleaner of the two. On 261 days when both cities reported, Tirupati was cleaner on 216 of them; the average daily gap was 126 AQI points.
Seasonality & days
Howrah peaks in December, while Tirupati peaks in April. Howrah logged 0.7% Severe days and 48.7% Good-or-Satisfactory days; Tirupati was 0% Severe and 84% Good-or-Satisfactory. Longest clean-air streaks: Howrah 120 days, Tirupati 36 days.
Year-over-year progress
Howrah has improved by 32 AQI points (20.3%) from 2016 to 2024; Tirupati has improved by 20 AQI points (21.1%) over the same window. The worst recorded day for Howrah reached AQI 500 at Ghusuri (WBPCB) on 2017-04-15; Tirupati hit AQI 263 at Vaikuntapuram (APPCB) on 2022-11-16.
Station-level disparity
Howrah spans 5 CPCB stations with a 116-point spread (min 111, max 227); Tirupati spans 1 stations with a 0-point spread (min 75, max 75).