Bulandshahr vs Purnia
Side-by-side air quality comparison between Bulandshahr and Purnia.
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, Bulandshahr averaged an AQI of 142 while Purnia averaged 133 — a 9-point (7%) gap, with Bulandshahr the more polluted and Purnia the cleaner of the two. On 876 days when both cities reported, Bulandshahr was cleaner on 488 of them; the average daily gap was 68 AQI points.
Seasonality & days
Bulandshahr peaks in November, while Purnia peaks in January. Bulandshahr logged 3.2% Severe days and 27.099999999999998% Good-or-Satisfactory days; Purnia was 3.7% Severe and 33.699999999999996% Good-or-Satisfactory. Longest clean-air streaks: Bulandshahr 41 days, Purnia 14 days.
Year-over-year progress
Bulandshahr has improved by 82 AQI points (36.6%) from 2018 to 2024; Purnia has improved by 163 AQI points (55.1%) over the same window. The worst recorded day for Bulandshahr reached AQI 500 at Yamunapuram (UPPCB) on 2018-06-13; Purnia hit AQI 460 at Mariam Nagar (BSPCB) on 2022-12-15.
Station-level disparity
Bulandshahr spans 1 CPCB stations with a 0-point spread (min 180, max 180); Purnia spans 1 stations with a 0-point spread (min 176, max 176).