Katihar vs Rajgir
Side-by-side air quality comparison between Katihar and Rajgir.
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 | Katihar | Rajgir |
|---|---|---|
| PM2.5(µg/m³) | 88.20 | 61.90 |
| PM10(µg/m³) | 98.70 | 91.70 |
| NO₂(µg/m³) | 2.30 | 0.80 |
| SO₂(µg/m³) | 24.60 | 10.10 |
| O₃(µg/m³) | 239.00 | 188.00 |
| CO(µg/m³) | 335.00 | 239.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Katihar averaged an AQI of 123 while Rajgir averaged 124 — a 1-point (1%) gap, with Rajgir the more polluted and Katihar the cleaner of the two. On 751 days when both cities reported, Rajgir was cleaner on 518 of them; the average daily gap was 66 AQI points.
Seasonality & days
Katihar peaks in December, while Rajgir peaks in January. Katihar logged 3.1% Severe days and 26.9% Good-or-Satisfactory days; Rajgir was 0.6% Severe and 37.9% Good-or-Satisfactory. Longest clean-air streaks: Katihar 19 days, Rajgir 26 days.
Year-over-year progress
Katihar has improved by 188 AQI points (60.5%) from 2021 to 2024; Rajgir has improved by 158 AQI points (56%) over the same window. The worst recorded day for Katihar reached AQI 465 at Mirchaibari (BSPCB) on 2023-01-23; Rajgir hit AQI 461 at Dangi Tola (BSPCB) on 2022-12-31.
Station-level disparity
Katihar spans 1 CPCB stations with a 0-point spread (min 185, max 185); Rajgir spans 1 stations with a 0-point spread (min 154, max 154).
Verdict
🏆 Rajgir has better air quality with an AQI of 107 compared to Katihar's 194. That's a significant difference of 87 points.