Noida vs Tirunelveli
Side-by-side air quality comparison between Noida and Tirunelveli.
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 | Noida | Tirunelveli |
|---|---|---|
| PM2.5(µg/m³) | 69.60 | 4.40 |
| PM10(µg/m³) | 137.40 | 5.20 |
| NO₂(µg/m³) | 30.10 | 5.50 |
| SO₂(µg/m³) | 17.90 | 1.80 |
| O₃(µg/m³) | 65.00 | 30.00 |
| CO(µg/m³) | 562.00 | 151.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Noida averaged an AQI of 182 while Tirunelveli averaged 30 — a 152-point (507%) gap, with Noida the more polluted and Tirunelveli the cleaner of the two. On 119 days when both cities reported, Tirunelveli was cleaner on 119 of them; the average daily gap was 184 AQI points.
Seasonality & days
Noida peaks in November, while Tirunelveli peaks in October. Noida logged 8.9% Severe days and 16.5% Good-or-Satisfactory days; Tirunelveli was 0% Severe and 100% Good-or-Satisfactory. Longest clean-air streaks: Noida 14 days, Tirunelveli 31 days.
Year-over-year progress
The worst recorded day for Noida reached AQI 500 at Sector-1 (UPPCB) on 2019-11-01; Tirunelveli hit AQI 42 at Municipal Corporation Office (TNPCB) on 2024-10-30.
Station-level disparity
Noida spans 4 CPCB stations with a 15-point spread (min 195, max 210); Tirunelveli spans 1 stations with a 0-point spread (min 30, max 30).
Verdict
🏆 Tirunelveli has better air quality with an AQI of 7 compared to Noida's 133. That's a significant difference of 126 points.