Perundurai vs Saharsa
Side-by-side air quality comparison between Perundurai and Saharsa.
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 | Saharsa |
|---|---|---|
| PM2.5(µg/m³) | 6.80 | 100.60 |
| PM10(µg/m³) | 8.00 | 109.00 |
| NO₂(µg/m³) | 11.30 | 40.40 |
| SO₂(µg/m³) | 3.20 | 12.20 |
| O₃(µg/m³) | 32.00 | 21.00 |
| CO(µg/m³) | 159.00 | 719.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Perundurai averaged an AQI of 75 while Saharsa averaged 139 — a 64-point (85%) gap, with Saharsa the more polluted and Perundurai the cleaner of the two. On 52 days when both cities reported, Perundurai was cleaner on 52 of them; the average daily gap was 132 AQI points.
Seasonality & days
Perundurai peaks in November, while Saharsa peaks in January. Perundurai logged 0% Severe days and 80.7% Good-or-Satisfactory days; Saharsa was 1.4% Severe and 28.4% Good-or-Satisfactory. Longest clean-air streaks: Perundurai 13 days, Saharsa 20 days.
Year-over-year progress
The worst recorded day for Perundurai reached AQI 153 at SIPCOT Industrial Park (TNPCB) on 2024-11-12; Saharsa hit AQI 454 at Police Line (BSPCB) on 2022-12-13.
Station-level disparity
Perundurai spans 1 CPCB stations with a 0-point spread (min 75, max 75); Saharsa spans 1 stations with a 0-point spread (min 188, max 188).
Verdict
🏆 Perundurai has better air quality with an AQI of 11 compared to Saharsa's 236. That's a significant difference of 225 points.