Nārnaul vs Thrissur
Side-by-side air quality comparison between Nārnaul and Thrissur.
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 | Nārnaul | Thrissur |
|---|---|---|
| PM2.5(µg/m³) | 45.40 | 8.60 |
| PM10(µg/m³) | 126.20 | 10.10 |
| NO₂(µg/m³) | 12.40 | 9.80 |
| SO₂(µg/m³) | 7.70 | 3.30 |
| O₃(µg/m³) | 86.00 | 29.00 |
| CO(µg/m³) | 365.00 | 163.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Nārnaul averaged an AQI of 94 while Thrissur averaged 57 — a 37-point (65%) gap, with Nārnaul the more polluted and Thrissur the cleaner of the two. On 1025 days when both cities reported, Thrissur was cleaner on 824 of them; the average daily gap was 76 AQI points.
Seasonality & days
Nārnaul peaks in November, while Thrissur peaks in February. Nārnaul logged 0.1% Severe days and 40.8% Good-or-Satisfactory days; Thrissur was 0% Severe and 88.4% Good-or-Satisfactory. Longest clean-air streaks: Nārnaul 63 days, Thrissur 52 days.
Year-over-year progress
Nārnaul has improved by 37 AQI points (28.2%) from 2019 to 2024; Thrissur has improved by 21 AQI points (26.9%) over the same window. The worst recorded day for Nārnaul reached AQI 435 at Shastri Nagar (HSPCB) on 2023-11-16; Thrissur hit AQI 181 at Corporation Ground Thrissur (PCB) on 2023-01-09.
Station-level disparity
Nārnaul spans 1 CPCB stations with a 0-point spread (min 130, max 130); Thrissur spans 1 stations with a 0-point spread (min 68, max 68).
Verdict
🏆 Thrissur has better air quality with an AQI of 14 compared to Nārnaul's 118. That's a significant difference of 104 points.