Chapra vs Sikar
Side-by-side air quality comparison between Chapra 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 | Chapra | Sikar |
|---|---|---|
| PM2.5(µg/m³) | 102.90 | 33.60 |
| PM10(µg/m³) | 117.10 | 88.20 |
| NO₂(µg/m³) | 42.70 | 9.00 |
| SO₂(µg/m³) | 15.30 | 5.70 |
| O₃(µg/m³) | 46.00 | 76.00 |
| CO(µg/m³) | 805.00 | 146.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Chapra averaged an AQI of 149 while Sikar averaged 139 — a 10-point (7%) gap, with Chapra the more polluted and Sikar the cleaner of the two. On 532 days when both cities reported, Sikar was cleaner on 311 of them; the average daily gap was 66 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Chapra logged 2.4% Severe days and 26.8% Good-or-Satisfactory days; Sikar was 0.2% Severe and 34% Good-or-Satisfactory. Longest clean-air streaks: Chapra 14 days, Sikar 32 days.
Year-over-year progress
Chapra has improved by 181 AQI points (54.8%) from 2021 to 2024; Sikar has worsened by 4 AQI points (3%) over the same window. The worst recorded day for Chapra reached AQI 452 at Darshan Nagar (BSPCB) on 2022-12-20; Sikar hit AQI 452 at Radhakishan Pura (RSPCB) on 2023-11-16.
Station-level disparity
Chapra spans 1 CPCB stations with a 0-point spread (min 195, max 195); Sikar spans 1 stations with a 0-point spread (min 137, max 137).
Verdict
🏆 Sikar has better air quality with an AQI of 88 compared to Chapra's 244. That's a significant difference of 156 points.