Agartala vs Howrah
Side-by-side air quality comparison between Agartala and Howrah.
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 | Agartala | Howrah |
|---|---|---|
| PM2.5(µg/m³) | 37.30 | 68.70 |
| PM10(µg/m³) | 40.40 | 72.60 |
| NO₂(µg/m³) | 23.00 | 22.20 |
| SO₂(µg/m³) | 3.10 | 11.50 |
| O₃(µg/m³) | 23.00 | 55.00 |
| CO(µg/m³) | 281.00 | 360.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Agartala averaged an AQI of 140 while Howrah averaged 126 — a 14-point (11%) gap, with Agartala the more polluted and Howrah the cleaner of the two. On 1057 days when both cities reported, Agartala was cleaner on 836 of them; the average daily gap was 60 AQI points.
Seasonality & days
Agartala peaks in January, while Howrah peaks in December. Agartala logged 0% Severe days and 52.900000000000006% Good-or-Satisfactory days; Howrah was 0.7% Severe and 48.7% Good-or-Satisfactory. Longest clean-air streaks: Agartala 87 days, Howrah 120 days.
Year-over-year progress
Agartala has improved by 13 AQI points (8.5%) from 2020 to 2024; Howrah has improved by 32 AQI points (20.3%) over the same window. The worst recorded day for Agartala reached AQI 364 at Kunjaban Agartala (SPCB) on 2022-12-16; Howrah hit AQI 500 at Ghusuri (WBPCB) on 2017-04-15.
Station-level disparity
Agartala spans 2 CPCB stations with a 10-point spread (min 109, max 119); Howrah spans 5 stations with a 116-point spread (min 111, max 227).
Verdict
🏆 Agartala has better air quality with an AQI of 63 compared to Howrah's 130. That's a significant difference of 67 points.