Chennai vs Nayāgarh
Side-by-side air quality comparison between Chennai and Nayāgarh.
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 | Nayāgarh |
|---|---|---|
| PM2.5(µg/m³) | 11.70 | 43.90 |
| PM10(µg/m³) | 13.10 | 48.80 |
| NO₂(µg/m³) | 14.20 | 10.80 |
| SO₂(µg/m³) | 10.10 | 8.30 |
| O₃(µg/m³) | 56.00 | 79.00 |
| CO(µg/m³) | 308.00 | 439.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Chennai averaged an AQI of 68 while Nayāgarh averaged 98 — a 30-point (44%) gap, with Nayāgarh the more polluted and Chennai the cleaner of the two. On 322 days when both cities reported, Nayāgarh was cleaner on 188 of them; the average daily gap was 60 AQI points.
Seasonality & days
Chennai peaks in December, while Nayāgarh peaks in April. Chennai logged 0% Severe days and 57.5% Good-or-Satisfactory days; Nayāgarh was 0% Severe and 47.400000000000006% Good-or-Satisfactory. Longest clean-air streaks: Chennai 53 days, Nayāgarh 52 days.
Year-over-year progress
Chennai has improved by 25 AQI points (26.9%) from 2017 to 2024; Nayāgarh has improved by 48 AQI points (32.9%) over the same window. The worst recorded day for Chennai reached AQI 391 at Kodungaiyur (TNPCB) on 2021-05-14; Nayāgarh hit AQI 336 at Dabuna (OSPCB) on 2023-03-13.
Station-level disparity
Chennai spans 9 CPCB stations with a 27-point spread (min 63, max 90); Nayāgarh spans 1 stations with a 0-point spread (min 116, max 116).
Verdict
🏆 Chennai has better air quality with an AQI of 20 compared to Nayāgarh's 74. That's a significant difference of 54 points.