Howrah vs Tālcher
Side-by-side air quality comparison between Howrah and Tālcher.
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 | Howrah | Tālcher |
|---|---|---|
| PM2.5(µg/m³) | 68.70 | 65.90 |
| PM10(µg/m³) | 72.60 | 72.20 |
| NO₂(µg/m³) | 22.20 | 25.60 |
| SO₂(µg/m³) | 11.50 | 5.80 |
| O₃(µg/m³) | 55.00 | 19.00 |
| CO(µg/m³) | 360.00 | 508.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Howrah averaged an AQI of 126 while Tālcher averaged 127 — a 1-point (1%) gap, with Tālcher the more polluted and Howrah the cleaner of the two. On 1349 days when both cities reported, Tālcher was cleaner on 757 of them; the average daily gap was 73 AQI points.
Seasonality & days
Both cities see their worst air in December on average. Howrah logged 0.7% Severe days and 48.7% Good-or-Satisfactory days; Tālcher was 0.2% Severe and 43.1% Good-or-Satisfactory. Longest clean-air streaks: Howrah 120 days, Tālcher 44 days.
Year-over-year progress
Howrah has improved by 32 AQI points (20.3%) from 2016 to 2024; Tālcher has improved by 63 AQI points (33.2%) over the same window. The worst recorded day for Howrah reached AQI 500 at Ghusuri (WBPCB) on 2017-04-15; Tālcher hit AQI 414 at Talcher (OSPCB) on 2018-11-27.
Station-level disparity
Howrah spans 5 CPCB stations with a 116-point spread (min 111, max 227); Tālcher spans 1 stations with a 0-point spread (min 132, max 132).
Verdict
🏆 Tālcher has better air quality with an AQI of 120 compared to Howrah's 130.