Purnia vs Rohtak
Side-by-side air quality comparison between Purnia and Rohtak.
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, Purnia averaged an AQI of 133 while Rohtak averaged 148 — a 15-point (11%) gap, with Rohtak the more polluted and Purnia the cleaner of the two. On 819 days when both cities reported, Rohtak was cleaner on 502 of them; the average daily gap was 81 AQI points.
Seasonality & days
Purnia peaks in January, while Rohtak peaks in November. Purnia logged 3.7% Severe days and 33.699999999999996% Good-or-Satisfactory days; Rohtak was 1.1% Severe and 36.599999999999994% Good-or-Satisfactory. Longest clean-air streaks: Purnia 14 days, Rohtak 45 days.
Year-over-year progress
Purnia has improved by 163 AQI points (55.1%) from 2021 to 2024; Rohtak has improved by 123 AQI points (45.4%) over the same window. The worst recorded day for Purnia reached AQI 460 at Mariam Nagar (BSPCB) on 2022-12-15; Rohtak hit AQI 498 at MD University (HSPCB) on 2019-11-03.
Station-level disparity
Purnia spans 1 CPCB stations with a 0-point spread (min 176, max 176); Rohtak spans 1 stations with a 0-point spread (min 159, max 159).