Haldia vs Khanna
Side-by-side air quality comparison between Haldia and Khanna.
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 | Haldia | Khanna |
|---|---|---|
| PM2.5(µg/m³) | 46.60 | 57.60 |
| PM10(µg/m³) | 51.90 | 86.80 |
| NO₂(µg/m³) | 11.40 | 25.80 |
| SO₂(µg/m³) | 10.40 | 15.90 |
| O₃(µg/m³) | 96.00 | 75.00 |
| CO(µg/m³) | 284.00 | 753.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Haldia averaged an AQI of 90 while Khanna averaged 102 — a 12-point (13%) gap, with Khanna the more polluted and Haldia the cleaner of the two. On 681 days when both cities reported, Haldia was cleaner on 460 of them; the average daily gap was 47 AQI points.
Seasonality & days
Haldia peaks in December, while Khanna peaks in November. Haldia logged 0% Severe days and 65.4% Good-or-Satisfactory days; Khanna was 0% Severe and 61.599999999999994% Good-or-Satisfactory. Longest clean-air streaks: Haldia 51 days, Khanna 60 days.
Year-over-year progress
Haldia has worsened by 8 AQI points (9.8%) from 2023 to 2024; Khanna has worsened by 4 AQI points (4.1%) over the same window. The worst recorded day for Haldia reached AQI 322 at Priyambada Housing Estate (WBPCB) on 2024-11-26; Khanna hit AQI 297 at Kalal Majra (PPCB) on 2023-11-09.
Station-level disparity
Haldia spans 1 CPCB stations with a 0-point spread (min 86, max 86); Khanna spans 1 stations with a 0-point spread (min 100, max 100).
Verdict
🏆 Haldia has better air quality with an AQI of 78 compared to Khanna's 96.