Motihari vs Perundurai
Side-by-side air quality comparison between Motihari and Perundurai.
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 | Motihari | Perundurai |
|---|---|---|
| PM2.5(µg/m³) | 127.10 | 6.80 |
| PM10(µg/m³) | 145.80 | 7.80 |
| NO₂(µg/m³) | 41.80 | 8.30 |
| SO₂(µg/m³) | 22.00 | 3.70 |
| O₃(µg/m³) | 98.00 | 42.00 |
| CO(µg/m³) | 858.00 | 185.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Motihari averaged an AQI of 116 while Perundurai averaged 75 — a 41-point (55%) gap, with Motihari 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 92 AQI points.
Seasonality & days
Both cities see their worst air in November on average. Motihari logged 1.2% Severe days and 39.1% Good-or-Satisfactory days; Perundurai was 0% Severe and 80.7% Good-or-Satisfactory. Longest clean-air streaks: Motihari 26 days, Perundurai 13 days.
Year-over-year progress
The worst recorded day for Motihari reached AQI 448 at Gandak Colony (BSPCB) on 2022-11-17; Perundurai hit AQI 153 at SIPCOT Industrial Park (TNPCB) on 2024-11-12.
Station-level disparity
Motihari spans 1 CPCB stations with a 0-point spread (min 153, max 153); Perundurai spans 1 stations with a 0-point spread (min 75, max 75).
Verdict
🏆 Perundurai has better air quality with an AQI of 11 compared to Motihari's 306. That's a significant difference of 295 points.