Hisar vs Katihar
Side-by-side air quality comparison between Hisar and Katihar.
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
Pollutant-level comparison (PM2.5, PM10, O3, NO2, SO2, CO)▾
| Pollutant | Hisar | Katihar |
|---|---|---|
| PM2.5(µg/m³) | 75.00 | 109.20 |
| PM10(µg/m³) | 231.00 | 114.30 |
| NO₂(µg/m³) | 42.00 | 31.10 |
| SO₂(µg/m³) | 7.20 | 18.30 |
| O₃(µg/m³) | 25.00 | 43.00 |
| CO(µg/m³) | 573.00 | 770.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Hisar averaged an AQI of 136 while Katihar averaged 123 — a 13-point (11%) gap, with Hisar the more polluted and Katihar the cleaner of the two. On 563 days when both cities reported, Hisar was cleaner on 293 of them; the average daily gap was 71 AQI points.
Seasonality & days
Hisar peaks in November, while Katihar peaks in December. Hisar logged 1.6% Severe days and 29.700000000000003% Good-or-Satisfactory days; Katihar was 3.1% Severe and 26.9% Good-or-Satisfactory. Longest clean-air streaks: Hisar 34 days, Katihar 19 days.
Year-over-year progress
Hisar has improved by 39 AQI points (22.3%) from 2019 to 2024; Katihar has improved by 188 AQI points (60.5%) over the same window. The worst recorded day for Hisar reached AQI 490 at Urban Estate-II (HSPCB) on 2019-11-02; Katihar hit AQI 465 at Mirchaibari (BSPCB) on 2023-01-23.
Station-level disparity
Hisar spans 1 CPCB stations with a 0-point spread (min 168, max 168); Katihar spans 1 stations with a 0-point spread (min 185, max 185).
Verdict
🏆 Hisar has better air quality with an AQI of 187 compared to Katihar's 264. That's a significant difference of 77 points.