Palwal vs Tiruchirappalli
Side-by-side air quality comparison between Palwal and Tiruchirappalli.
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 | Palwal | Tiruchirappalli |
|---|---|---|
| PM2.5(µg/m³) | 65.40 | 3.70 |
| PM10(µg/m³) | 303.60 | 4.40 |
| NO₂(µg/m³) | 0.70 | 1.10 |
| SO₂(µg/m³) | 10.60 | 1.90 |
| O₃(µg/m³) | 192.00 | 90.00 |
| CO(µg/m³) | 296.00 | 116.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Palwal averaged an AQI of 95 while Tiruchirappalli averaged 50 — a 45-point (90%) gap, with Palwal the more polluted and Tiruchirappalli the cleaner of the two. On 75 days when both cities reported, Tiruchirappalli was cleaner on 68 of them; the average daily gap was 56 AQI points.
Seasonality & days
Palwal peaks in November, while Tiruchirappalli peaks in January. Palwal logged 0.2% Severe days and 47.800000000000004% Good-or-Satisfactory days; Tiruchirappalli was 0% Severe and 96.5% Good-or-Satisfactory. Longest clean-air streaks: Palwal 37 days, Tiruchirappalli 46 days.
Year-over-year progress
Palwal has improved by 91 AQI points (48.9%) from 2019 to 2024; Tiruchirappalli has improved by 23 AQI points (31.5%) over the same window. The worst recorded day for Palwal reached AQI 465 at Shyam Nagar (HSPCB) on 2019-11-14; Tiruchirappalli hit AQI 114 at St Joseph College (TNPCB) on 2024-01-14.
Station-level disparity
Palwal spans 1 CPCB stations with a 0-point spread (min 120, max 120); Tiruchirappalli spans 1 stations with a 0-point spread (min 52, max 52).
Verdict
🏆 Tiruchirappalli has better air quality with an AQI of 6 compared to Palwal's 254. That's a significant difference of 248 points.