Perundurai vs Samastipur
Side-by-side air quality comparison between Perundurai 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 | Perundurai | Samastipur |
|---|---|---|
| PM2.5(µg/m³) | 9.20 | 118.70 |
| PM10(µg/m³) | 10.30 | 131.30 |
| NO₂(µg/m³) | 10.50 | 48.30 |
| SO₂(µg/m³) | 3.60 | 20.10 |
| O₃(µg/m³) | 35.00 | 57.00 |
| CO(µg/m³) | 172.00 | 732.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Perundurai averaged an AQI of 75 while Samastipur averaged 134 — a 59-point (79%) gap, with Samastipur the more polluted and Perundurai the cleaner of the two. On 51 days when both cities reported, Perundurai was cleaner on 50 of them; the average daily gap was 92 AQI points.
Seasonality & days
Perundurai peaks in November, while Samastipur peaks in January. Perundurai logged 0% Severe days and 80.7% Good-or-Satisfactory days; Samastipur was 1.4% Severe and 23.400000000000002% Good-or-Satisfactory. Longest clean-air streaks: Perundurai 13 days, Samastipur 9 days.
Year-over-year progress
The worst recorded day for Perundurai reached AQI 153 at SIPCOT Industrial Park (TNPCB) on 2024-11-12; Samastipur hit AQI 459 at DM Office Kasipur (BSPCB) on 2023-01-01.
Station-level disparity
Perundurai spans 1 CPCB stations with a 0-point spread (min 75, max 75); Samastipur spans 1 stations with a 0-point spread (min 177, max 177).
Verdict
🏆 Perundurai has better air quality with an AQI of 15 compared to Samastipur's 296. That's a significant difference of 281 points.