Haldia vs Meerut
Side-by-side air quality comparison between Haldia and Meerut.
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 | Meerut |
|---|---|---|
| PM2.5(µg/m³) | 46.60 | 69.60 |
| PM10(µg/m³) | 51.90 | 96.40 |
| NO₂(µg/m³) | 11.40 | 27.40 |
| SO₂(µg/m³) | 10.40 | 11.00 |
| O₃(µg/m³) | 96.00 | 65.00 |
| CO(µg/m³) | 284.00 | 590.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Haldia averaged an AQI of 90 while Meerut averaged 144 — a 54-point (60%) gap, with Meerut the more polluted and Haldia the cleaner of the two. On 359 days when both cities reported, Haldia was cleaner on 305 of them; the average daily gap was 91 AQI points.
Seasonality & days
Haldia peaks in December, while Meerut peaks in November. Haldia logged 0% Severe days and 65.4% Good-or-Satisfactory days; Meerut was 2% Severe and 22.299999999999997% Good-or-Satisfactory. Longest clean-air streaks: Haldia 51 days, Meerut 25 days.
Year-over-year progress
Haldia has worsened by 8 AQI points (9.8%) from 2023 to 2024; Meerut has improved by 116 AQI points (44.6%) over the same window. The worst recorded day for Haldia reached AQI 322 at Priyambada Housing Estate (WBPCB) on 2024-11-26; Meerut hit AQI 490 at Pallavpuram Phase 2 (UPPCB) on 2020-11-05.
Station-level disparity
Haldia spans 1 CPCB stations with a 0-point spread (min 86, max 86); Meerut spans 3 stations with a 13-point spread (min 172, max 185).
Verdict
🏆 Haldia has better air quality with an AQI of 78 compared to Meerut's 133. That's a significant difference of 55 points.