Ariyalur vs Nalbāri
Side-by-side air quality comparison between Ariyalur and Nalbāri.
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 | Ariyalur | Nalbāri |
|---|---|---|
| PM2.5(µg/m³) | 5.10 | 51.80 |
| PM10(µg/m³) | 6.10 | 58.40 |
| NO₂(µg/m³) | 6.00 | 5.10 |
| SO₂(µg/m³) | 9.80 | 6.30 |
| O₃(µg/m³) | 53.00 | 135.00 |
| CO(µg/m³) | 136.00 | 413.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Ariyalur averaged an AQI of 46 while Nalbāri averaged 129 — a 83-point (180%) gap, with Nalbāri the more polluted and Ariyalur the cleaner of the two. On 531 days when both cities reported, Ariyalur was cleaner on 486 of them; the average daily gap was 92 AQI points.
Seasonality & days
Ariyalur peaks in March, while Nalbāri peaks in January. Ariyalur logged 0% Severe days and 93.8% Good-or-Satisfactory days; Nalbāri was 0% Severe and 41% Good-or-Satisfactory. Longest clean-air streaks: Ariyalur 57 days, Nalbāri 18 days.
Year-over-year progress
Ariyalur has improved by 35 AQI points (43.2%) from 2022 to 2024; Nalbāri has improved by 72 AQI points (35.8%) over the same window. The worst recorded day for Ariyalur reached AQI 221 at Keelapalur (TNPCB) on 2024-04-07; Nalbāri hit AQI 384 at Bata Chowk (PCBA) on 2024-01-08.
Station-level disparity
Ariyalur spans 1 CPCB stations with a 0-point spread (min 51, max 51); Nalbāri spans 1 stations with a 0-point spread (min 141, max 141).
Verdict
🏆 Ariyalur has better air quality with an AQI of 9 compared to Nalbāri's 87. That's a significant difference of 78 points.