Samastipur vs Sikar
Side-by-side air quality comparison between Samastipur 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 | Samastipur | Sikar |
|---|---|---|
| PM2.5(µg/m³) | 118.00 | 27.60 |
| PM10(µg/m³) | 134.60 | 68.20 |
| NO₂(µg/m³) | 61.60 | 12.80 |
| SO₂(µg/m³) | 18.30 | 5.40 |
| O₃(µg/m³) | 5.00 | 65.00 |
| CO(µg/m³) | 837.00 | 223.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Samastipur averaged an AQI of 134 while Sikar averaged 139 — a 5-point (4%) gap, with Sikar the more polluted and Samastipur the cleaner of the two. On 506 days when both cities reported, Sikar was cleaner on 279 of them; the average daily gap was 60 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Samastipur logged 1.4% Severe days and 23.400000000000002% Good-or-Satisfactory days; Sikar was 0.2% Severe and 34% Good-or-Satisfactory. Longest clean-air streaks: Samastipur 9 days, Sikar 32 days.
Year-over-year progress
Samastipur has improved by 84 AQI points (38.5%) from 2022 to 2024; Sikar has worsened by 4 AQI points (3%) over the same window. The worst recorded day for Samastipur reached AQI 459 at DM Office Kasipur (BSPCB) on 2023-01-01; Sikar hit AQI 452 at Radhakishan Pura (RSPCB) on 2023-11-16.
Station-level disparity
Samastipur spans 1 CPCB stations with a 0-point spread (min 177, max 177); Sikar spans 1 stations with a 0-point spread (min 137, max 137).
Verdict
🏆 Sikar has better air quality with an AQI of 69 compared to Samastipur's 293. That's a significant difference of 224 points.