Haldia vs Sangli
Side-by-side air quality comparison between Haldia and Sangli.
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 | Sangli |
|---|---|---|
| PM2.5(µg/m³) | 46.60 | 13.60 |
| PM10(µg/m³) | 51.90 | 24.30 |
| NO₂(µg/m³) | 11.40 | 7.90 |
| SO₂(µg/m³) | 10.40 | 3.30 |
| O₃(µg/m³) | 96.00 | 37.00 |
| CO(µg/m³) | 284.00 | 126.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Haldia averaged an AQI of 90 while Sangli averaged 85 — a 5-point (6%) gap, with Haldia the more polluted and Sangli the cleaner of the two. On 508 days when both cities reported, Sangli was cleaner on 300 of them; the average daily gap was 38 AQI points.
Seasonality & days
Haldia peaks in December, while Sangli peaks in February. Haldia logged 0% Severe days and 65.4% Good-or-Satisfactory days; Sangli was 0% Severe and 67.3% Good-or-Satisfactory. Longest clean-air streaks: Haldia 51 days, Sangli 116 days.
Year-over-year progress
Haldia has worsened by 8 AQI points (9.8%) from 2023 to 2024; Sangli has worsened by 17 AQI points (25%) over the same window. The worst recorded day for Haldia reached AQI 322 at Priyambada Housing Estate (WBPCB) on 2024-11-26; Sangli hit AQI 254 at Vijay Nagar (MPCB) on 2024-09-24.
Station-level disparity
Haldia spans 1 CPCB stations with a 0-point spread (min 86, max 86); Sangli spans 1 stations with a 0-point spread (min 79, max 79).
Verdict
🏆 Sangli has better air quality with an AQI of 24 compared to Haldia's 78. That's a significant difference of 54 points.