Indore vs Samastipur
Side-by-side air quality comparison between Indore 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 | Indore | Samastipur |
|---|---|---|
| PM2.5(µg/m³) | 31.30 | 118.70 |
| PM10(µg/m³) | 47.80 | 131.30 |
| NO₂(µg/m³) | 7.10 | 48.30 |
| SO₂(µg/m³) | 15.10 | 20.10 |
| O₃(µg/m³) | 66.00 | 57.00 |
| CO(µg/m³) | 251.00 | 732.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Indore averaged an AQI of 84 while Samastipur averaged 134 — a 50-point (60%) gap, with Samastipur the more polluted and Indore the cleaner of the two. On 482 days when both cities reported, Indore was cleaner on 338 of them; the average daily gap was 78 AQI points.
Seasonality & days
Indore peaks in November, while Samastipur peaks in January. Indore logged 0% Severe days and 45.099999999999994% Good-or-Satisfactory days; Samastipur was 1.4% Severe and 23.400000000000002% Good-or-Satisfactory. Longest clean-air streaks: Indore 65 days, Samastipur 9 days.
Year-over-year progress
Indore has improved by 47 AQI points (35.9%) from 2019 to 2024; Samastipur has improved by 84 AQI points (38.5%) over the same window. The worst recorded day for Indore reached AQI 359 at Maguda Nagar (IMC) on 2024-09-18; Samastipur hit AQI 459 at DM Office Kasipur (BSPCB) on 2023-01-01.
Station-level disparity
Indore spans 6 CPCB stations with a 69-point spread (min 52, max 121); Samastipur spans 1 stations with a 0-point spread (min 177, max 177).
Verdict
🏆 Indore has better air quality with an AQI of 53 compared to Samastipur's 296. That's a significant difference of 243 points.