Katihar vs Nashik
Side-by-side air quality comparison between Katihar and Nashik.
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 | Nashik |
|---|---|---|
| PM2.5(µg/m³) | 109.20 | 15.80 |
| PM10(µg/m³) | 114.30 | 29.90 |
| NO₂(µg/m³) | 31.10 | 13.90 |
| SO₂(µg/m³) | 18.30 | 14.70 |
| O₃(µg/m³) | 43.00 | 26.00 |
| CO(µg/m³) | 770.00 | 171.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Katihar averaged an AQI of 123 while Nashik averaged 85 — a 38-point (45%) gap, with Katihar the more polluted and Nashik the cleaner of the two. On 542 days when both cities reported, Nashik was cleaner on 406 of them; the average daily gap was 95 AQI points.
Seasonality & days
Katihar peaks in December, while Nashik peaks in November. Katihar logged 3.1% Severe days and 26.9% Good-or-Satisfactory days; Nashik was 0% Severe and 65.9% Good-or-Satisfactory. Longest clean-air streaks: Katihar 19 days, Nashik 53 days.
Year-over-year progress
Katihar has improved by 188 AQI points (60.5%) from 2021 to 2024; Nashik has improved by 38 AQI points (30.9%) over the same window. The worst recorded day for Katihar reached AQI 465 at Mirchaibari (BSPCB) on 2023-01-23; Nashik hit AQI 319 at Gangapur Road (MPCB) on 2024-11-24.
Station-level disparity
Katihar spans 1 CPCB stations with a 0-point spread (min 185, max 185); Nashik spans 4 stations with a 12-point spread (min 78, max 90).
Verdict
🏆 Nashik has better air quality with an AQI of 30 compared to Katihar's 264. That's a significant difference of 234 points.