Katihar vs Mangalore
Side-by-side air quality comparison between Katihar and Mangalore.
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 | Mangalore |
|---|---|---|
| PM2.5(µg/m³) | 105.90 | 9.00 |
| PM10(µg/m³) | 109.00 | 15.50 |
| NO₂(µg/m³) | 25.20 | 5.10 |
| SO₂(µg/m³) | 20.10 | 1.80 |
| O₃(µg/m³) | 67.00 | 48.00 |
| CO(µg/m³) | 727.00 | 169.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Katihar averaged an AQI of 123 while Mangalore averaged 61 — a 62-point (102%) gap, with Katihar the more polluted and Mangalore the cleaner of the two. On 884 days when both cities reported, Mangalore was cleaner on 809 of them; the average daily gap was 120 AQI points.
Seasonality & days
Katihar peaks in December, while Mangalore peaks in February. Katihar logged 3.1% Severe days and 26.9% Good-or-Satisfactory days; Mangalore was 0% Severe and 87.2% Good-or-Satisfactory. Longest clean-air streaks: Katihar 19 days, Mangalore 64 days.
Year-over-year progress
Katihar has improved by 188 AQI points (60.5%) from 2021 to 2024; Mangalore has improved by 9 AQI points (12.9%) over the same window. The worst recorded day for Katihar reached AQI 465 at Mirchaibari (BSPCB) on 2023-01-23; Mangalore hit AQI 235 at Kadri (KSPCB) on 2023-11-17.
Station-level disparity
Katihar spans 1 CPCB stations with a 0-point spread (min 185, max 185); Mangalore spans 1 stations with a 0-point spread (min 68, max 68).
Verdict
🏆 Mangalore has better air quality with an AQI of 16 compared to Katihar's 253. That's a significant difference of 237 points.