Ahmedabad vs Samastipur
Side-by-side air quality comparison between Ahmedabad and Samastipur.
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 | Ahmedabad | Samastipur |
|---|---|---|
| PM2.5(µg/m³) | 22.60 | 118.00 |
| PM10(µg/m³) | 36.90 | 134.60 |
| NO₂(µg/m³) | 7.00 | 61.60 |
| SO₂(µg/m³) | 4.70 | 18.30 |
| O₃(µg/m³) | 40.00 | 5.00 |
| CO(µg/m³) | 159.00 | 837.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Ahmedabad averaged an AQI of 117 while Samastipur averaged 134 — a 17-point (15%) gap, with Samastipur the more polluted and Ahmedabad the cleaner of the two. On 789 days when both cities reported, Ahmedabad was cleaner on 414 of them; the average daily gap was 80 AQI points.
Seasonality & days
Ahmedabad peaks in November, while Samastipur peaks in January. Ahmedabad logged 0.1% Severe days and 23.7% Good-or-Satisfactory days; Samastipur was 1.4% Severe and 23.400000000000002% Good-or-Satisfactory. Longest clean-air streaks: Ahmedabad 25 days, Samastipur 9 days.
Year-over-year progress
Ahmedabad has worsened by 52 AQI points (80%) from 2016 to 2024; Samastipur has improved by 84 AQI points (38.5%) over the same window. The worst recorded day for Ahmedabad reached AQI 430 at Raikhad (IITM) on 2023-03-17; Samastipur hit AQI 459 at DM Office Kasipur (BSPCB) on 2023-01-01.
Station-level disparity
Ahmedabad spans 9 CPCB stations with a 44-point spread (min 95, max 139); Samastipur spans 1 stations with a 0-point spread (min 177, max 177).
Verdict
🏆 Ahmedabad has better air quality with an AQI of 38 compared to Samastipur's 293. That's a significant difference of 255 points.