Ariyalur vs Bangalore
Side-by-side air quality comparison between Ariyalur and Bangalore.
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 | Bangalore |
|---|---|---|
| PM2.5(µg/m³) | 6.80 | 5.10 |
| PM10(µg/m³) | 8.30 | 5.60 |
| NO₂(µg/m³) | 7.50 | 9.50 |
| SO₂(µg/m³) | 6.50 | 4.20 |
| O₃(µg/m³) | 43.00 | 35.00 |
| CO(µg/m³) | 133.00 | 290.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Ariyalur averaged an AQI of 46 while Bangalore averaged 74 — a 28-point (61%) gap, with Bangalore the more polluted and Ariyalur the cleaner of the two. On 610 days when both cities reported, Ariyalur was cleaner on 587 of them; the average daily gap was 74 AQI points.
Seasonality & days
Both cities see their worst air in March on average. Ariyalur logged 0% Severe days and 93.8% Good-or-Satisfactory days; Bangalore was 0.5% Severe and 42.6% Good-or-Satisfactory. Longest clean-air streaks: Ariyalur 57 days, Bangalore 31 days.
Year-over-year progress
Ariyalur has improved by 35 AQI points (43.2%) from 2022 to 2024; Bangalore has improved by 26 AQI points (26%) over the same window. The worst recorded day for Ariyalur reached AQI 221 at Keelapalur (TNPCB) on 2024-04-07; Bangalore hit AQI 500 at Silk Board (KSPCB) on 2024-01-10.
Station-level disparity
Ariyalur spans 1 CPCB stations with a 0-point spread (min 51, max 51); Bangalore spans 14 stations with a 50-point spread (min 49, max 99).
Verdict
🏆 Bangalore has better air quality with an AQI of 9 compared to Ariyalur's 11.