Haldia vs Nagpur
Side-by-side air quality comparison between Haldia and Nagpur.
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 | Nagpur |
|---|---|---|
| PM2.5(µg/m³) | 46.60 | 21.10 |
| PM10(µg/m³) | 51.90 | 26.60 |
| NO₂(µg/m³) | 11.40 | 20.80 |
| SO₂(µg/m³) | 10.40 | 15.00 |
| O₃(µg/m³) | 96.00 | 55.00 |
| CO(µg/m³) | 284.00 | 180.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Haldia averaged an AQI of 90 while Nagpur averaged 104 — a 14-point (16%) gap, with Nagpur the more polluted and Haldia the cleaner of the two. On 359 days when both cities reported, Haldia was cleaner on 287 of them; the average daily gap was 49 AQI points.
Seasonality & days
Haldia peaks in December, while Nagpur peaks in November. Haldia logged 0% Severe days and 65.4% Good-or-Satisfactory days; Nagpur was 0% Severe and 60.599999999999994% Good-or-Satisfactory. Longest clean-air streaks: Haldia 51 days, Nagpur 68 days.
Year-over-year progress
Haldia has worsened by 8 AQI points (9.8%) from 2023 to 2024; Nagpur has improved by 37 AQI points (26.2%) over the same window. The worst recorded day for Haldia reached AQI 322 at Priyambada Housing Estate (WBPCB) on 2024-11-26; Nagpur hit AQI 342 at Opp GPO Civil Lines (MPCB) on 2022-12-03.
Station-level disparity
Haldia spans 1 CPCB stations with a 0-point spread (min 86, max 86); Nagpur spans 4 stations with a 9-point spread (min 98, max 107).
Verdict
🏆 Nagpur has better air quality with an AQI of 35 compared to Haldia's 78.