Bidar vs Howrah
Side-by-side air quality comparison between Bidar 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 | Bidar | Howrah |
|---|---|---|
| PM2.5(µg/m³) | 16.50 | 64.70 |
| PM10(µg/m³) | 22.50 | 69.40 |
| NO₂(µg/m³) | 7.30 | 18.10 |
| SO₂(µg/m³) | 2.40 | 13.10 |
| O₃(µg/m³) | 64.00 | 86.00 |
| CO(µg/m³) | 204.00 | 421.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Bidar averaged an AQI of 85 while Howrah averaged 126 — a 41-point (48%) gap, with Howrah the more polluted and Bidar the cleaner of the two. On 563 days when both cities reported, Bidar was cleaner on 429 of them; the average daily gap was 102 AQI points.
Seasonality & days
Bidar peaks in January, while Howrah peaks in December. Bidar logged 0.1% Severe days and 72.5% Good-or-Satisfactory days; Howrah was 0.7% Severe and 48.7% Good-or-Satisfactory. Longest clean-air streaks: Bidar 24 days, Howrah 120 days.
Year-over-year progress
Bidar has worsened by 1 AQI points (1.2%) from 2021 to 2024; Howrah has improved by 32 AQI points (20.3%) over the same window. The worst recorded day for Bidar reached AQI 437 at Naubad (KSPCB) on 2022-01-25; Howrah hit AQI 500 at Ghusuri (WBPCB) on 2017-04-15.
Station-level disparity
Bidar spans 1 CPCB stations with a 0-point spread (min 84, max 84); Howrah spans 5 stations with a 116-point spread (min 111, max 227).
Verdict
🏆 Bidar has better air quality with an AQI of 28 compared to Howrah's 117. That's a significant difference of 89 points.