Nalbāri vs Perundurai
Side-by-side air quality comparison between Nalbāri 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 | Nalbāri | Perundurai |
|---|---|---|
| PM2.5(µg/m³) | 54.50 | 9.20 |
| PM10(µg/m³) | 61.20 | 10.30 |
| NO₂(µg/m³) | 6.50 | 10.50 |
| SO₂(µg/m³) | 5.80 | 3.60 |
| O₃(µg/m³) | 123.00 | 35.00 |
| CO(µg/m³) | 407.00 | 172.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Nalbāri averaged an AQI of 129 while Perundurai averaged 75 — a 54-point (72%) gap, with Nalbāri the more polluted and Perundurai the cleaner of the two. On 52 days when both cities reported, Perundurai was cleaner on 33 of them; the average daily gap was 64 AQI points.
Seasonality & days
Nalbāri peaks in January, while Perundurai peaks in November. Nalbāri logged 0% Severe days and 41% Good-or-Satisfactory days; Perundurai was 0% Severe and 80.7% Good-or-Satisfactory. Longest clean-air streaks: Nalbāri 18 days, Perundurai 13 days.
Year-over-year progress
The worst recorded day for Nalbāri reached AQI 384 at Bata Chowk (PCBA) on 2024-01-08; Perundurai hit AQI 153 at SIPCOT Industrial Park (TNPCB) on 2024-11-12.
Station-level disparity
Nalbāri spans 1 CPCB stations with a 0-point spread (min 141, max 141); Perundurai spans 1 stations with a 0-point spread (min 75, max 75).
Verdict
🏆 Perundurai has better air quality with an AQI of 15 compared to Nalbāri's 91. That's a significant difference of 76 points.