Howrah vs Sikar
Side-by-side air quality comparison between Howrah and Sikar.
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 | Sikar |
|---|---|---|
| PM2.5(µg/m³) | 68.70 | 31.40 |
| PM10(µg/m³) | 72.60 | 82.70 |
| NO₂(µg/m³) | 22.20 | 10.10 |
| SO₂(µg/m³) | 11.50 | 5.50 |
| O₃(µg/m³) | 55.00 | 72.00 |
| CO(µg/m³) | 360.00 | 157.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Howrah averaged an AQI of 126 while Sikar averaged 139 — a 13-point (10%) gap, with Sikar the more polluted and Howrah the cleaner of the two. On 351 days when both cities reported, Sikar was cleaner on 185 of them; the average daily gap was 56 AQI points.
Seasonality & days
Howrah peaks in December, while Sikar peaks in January. Howrah logged 0.7% Severe days and 48.7% Good-or-Satisfactory days; Sikar was 0.2% Severe and 34% Good-or-Satisfactory. Longest clean-air streaks: Howrah 120 days, Sikar 32 days.
Year-over-year progress
Howrah has improved by 32 AQI points (20.3%) from 2016 to 2024; Sikar has worsened by 4 AQI points (3%) over the same window. The worst recorded day for Howrah reached AQI 500 at Ghusuri (WBPCB) on 2017-04-15; Sikar hit AQI 452 at Radhakishan Pura (RSPCB) on 2023-11-16.
Station-level disparity
Howrah spans 5 CPCB stations with a 116-point spread (min 111, max 227); Sikar spans 1 stations with a 0-point spread (min 137, max 137).
Verdict
🏆 Sikar has better air quality with an AQI of 83 compared to Howrah's 130.