Nagapattinam vs Thiruvananthapuram
Side-by-side air quality comparison between Nagapattinam and Thiruvananthapuram.
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 | Nagapattinam | Thiruvananthapuram |
|---|---|---|
| PM2.5(µg/m³) | 12.50 | 5.30 |
| PM10(µg/m³) | 16.20 | 9.50 |
| NO₂(µg/m³) | 9.80 | 1.50 |
| SO₂(µg/m³) | 4.10 | 0.40 |
| O₃(µg/m³) | 38.00 | 38.00 |
| CO(µg/m³) | 211.00 | 102.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Nagapattinam averaged an AQI of 60 while Thiruvananthapuram averaged 56 — a 4-point (7%) gap, with Nagapattinam the more polluted and Thiruvananthapuram the cleaner of the two. On 47 days when both cities reported, Nagapattinam was cleaner on 29 of them; the average daily gap was 26 AQI points.
Seasonality & days
Nagapattinam peaks in November, while Thiruvananthapuram peaks in January. Nagapattinam logged 0% Severe days and 91.5% Good-or-Satisfactory days; Thiruvananthapuram was 0% Severe and 92% Good-or-Satisfactory. Longest clean-air streaks: Nagapattinam 8 days, Thiruvananthapuram 172 days.
Year-over-year progress
The worst recorded day for Nagapattinam reached AQI 113 at Velippalayam (TNPCB) on 2024-12-16; Thiruvananthapuram hit AQI 387 at Plammoodu Thiruvananthapuram (PCB) on 2021-08-30.
Station-level disparity
Nagapattinam spans 1 CPCB stations with a 0-point spread (min 60, max 60); Thiruvananthapuram spans 2 stations with a 7-point spread (min 57, max 64).
Verdict
🏆 Thiruvananthapuram has better air quality with an AQI of 10 compared to Nagapattinam's 21.