Ariyalur vs Hāveri
Side-by-side air quality comparison between Ariyalur and Hāveri.
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 | Hāveri |
|---|---|---|
| PM2.5(µg/m³) | 4.20 | 3.40 |
| PM10(µg/m³) | 4.90 | 6.80 |
| NO₂(µg/m³) | 2.50 | 1.20 |
| SO₂(µg/m³) | 8.20 | 0.70 |
| O₃(µg/m³) | 89.00 | 75.00 |
| CO(µg/m³) | 137.00 | 115.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Ariyalur averaged an AQI of 46 while Hāveri averaged 66 — a 20-point (43%) gap, with Hāveri the more polluted and Ariyalur the cleaner of the two. On 482 days when both cities reported, Ariyalur was cleaner on 368 of them; the average daily gap was 28 AQI points.
Seasonality & days
Ariyalur peaks in March, while Hāveri peaks in January. Ariyalur logged 0% Severe days and 93.8% Good-or-Satisfactory days; Hāveri was 0% Severe and 86.69999999999999% Good-or-Satisfactory. Longest clean-air streaks: Ariyalur 57 days, Hāveri 76 days.
Year-over-year progress
Ariyalur has improved by 35 AQI points (43.2%) from 2022 to 2024; Hāveri has improved by 1 AQI points (1.5%) over the same window. The worst recorded day for Ariyalur reached AQI 221 at Keelapalur (TNPCB) on 2024-04-07; Hāveri hit AQI 262 at Ashwini Nagar (KSPCB) on 2023-11-17.
Station-level disparity
Ariyalur spans 1 CPCB stations with a 0-point spread (min 51, max 51); Hāveri spans 1 stations with a 0-point spread (min 68, max 68).
Verdict
Both Ariyalur and Hāveri have the same AQI of 7 right now.