Chennai vs Panchkula
Side-by-side air quality comparison between Chennai and Panchkula.
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 | Chennai | Panchkula |
|---|---|---|
| PM2.5(µg/m³) | 16.60 | 50.90 |
| PM10(µg/m³) | 18.20 | 66.80 |
| NO₂(µg/m³) | 16.20 | 44.60 |
| SO₂(µg/m³) | 9.00 | 8.10 |
| O₃(µg/m³) | 57.00 | 11.00 |
| CO(µg/m³) | 350.00 | 714.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Chennai averaged an AQI of 68 while Panchkula averaged 117 — a 49-point (72%) gap, with Panchkula the more polluted and Chennai the cleaner of the two. On 1731 days when both cities reported, Panchkula was cleaner on 1049 of them; the average daily gap was 58 AQI points.
Seasonality & days
Both cities see their worst air in December on average. Chennai logged 0% Severe days and 57.5% Good-or-Satisfactory days; Panchkula was 0.1% Severe and 61.9% Good-or-Satisfactory. Longest clean-air streaks: Chennai 53 days, Panchkula 60 days.
Year-over-year progress
Chennai has improved by 25 AQI points (26.9%) from 2017 to 2024; Panchkula has improved by 74 AQI points (38.7%) over the same window. The worst recorded day for Chennai reached AQI 391 at Kodungaiyur (TNPCB) on 2021-05-14; Panchkula hit AQI 474 at Sector-6 Panchkula () on 2018-06-15.
Station-level disparity
Chennai spans 9 CPCB stations with a 27-point spread (min 63, max 90); Panchkula spans 1 stations with a 0-point spread (min 102, max 102).
Verdict
🏆 Chennai has better air quality with an AQI of 28 compared to Panchkula's 85. That's a significant difference of 57 points.