Hosur vs Purnia
Side-by-side air quality comparison between Hosur 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 2022, Hosur averaged an AQI of 90 while Purnia averaged 133 — a 43-point (48%) gap, with Purnia the more polluted and Hosur the cleaner of the two. On 87 days when both cities reported, Hosur was cleaner on 74 of them; the average daily gap was 160 AQI points.
Seasonality & days
Hosur peaks in December, while Purnia peaks in January. Hosur logged 0% Severe days and 73.89999999999999% Good-or-Satisfactory days; Purnia was 3.7% Severe and 33.699999999999996% Good-or-Satisfactory. Longest clean-air streaks: Hosur 10 days, Purnia 14 days.
Year-over-year progress
The worst recorded day for Hosur reached AQI 232 at SIPCOT Phase-1 (TNPCB) on 2022-10-25; Purnia hit AQI 460 at Mariam Nagar (BSPCB) on 2022-12-15.
Station-level disparity
Hosur spans 1 CPCB stations with a 0-point spread (min 90, max 90); Purnia spans 1 stations with a 0-point spread (min 176, max 176).