Kanchipuram vs Katihar
Side-by-side air quality comparison between Kanchipuram 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 | Kanchipuram | Katihar |
|---|---|---|
| PM2.5(µg/m³) | 5.50 | 89.90 |
| PM10(µg/m³) | 7.30 | 98.30 |
| NO₂(µg/m³) | 1.90 | 3.40 |
| SO₂(µg/m³) | 2.60 | 26.00 |
| O₃(µg/m³) | 95.00 | 229.00 |
| CO(µg/m³) | 176.00 | 380.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Kanchipuram averaged an AQI of 51 while Katihar averaged 123 — a 72-point (141%) gap, with Katihar the more polluted and Kanchipuram the cleaner of the two. On 304 days when both cities reported, Kanchipuram was cleaner on 291 of them; the average daily gap was 161 AQI points.
Seasonality & days
Kanchipuram peaks in February, while Katihar peaks in December. Kanchipuram logged 0% Severe days and 94% Good-or-Satisfactory days; Katihar was 3.1% Severe and 26.9% Good-or-Satisfactory. Longest clean-air streaks: Kanchipuram 18 days, Katihar 19 days.
Year-over-year progress
Kanchipuram has improved by 18 AQI points (26.1%) from 2022 to 2024; Katihar has improved by 188 AQI points (60.5%) over the same window. The worst recorded day for Kanchipuram reached AQI 320 at Kilambi (TNPCB) on 2023-05-22; Katihar hit AQI 465 at Mirchaibari (BSPCB) on 2023-01-23.
Station-level disparity
Kanchipuram spans 1 CPCB stations with a 0-point spread (min 57, max 57); Katihar spans 1 stations with a 0-point spread (min 185, max 185).
Verdict
🏆 Kanchipuram has better air quality with an AQI of 9 compared to Katihar's 200. That's a significant difference of 191 points.