Coimbatore vs Nayāgarh
Side-by-side air quality comparison between Coimbatore 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 | Coimbatore | Nayāgarh |
|---|---|---|
| PM2.5(µg/m³) | 2.70 | 43.90 |
| PM10(µg/m³) | 2.90 | 48.80 |
| NO₂(µg/m³) | 4.50 | 10.80 |
| SO₂(µg/m³) | 2.20 | 8.30 |
| O₃(µg/m³) | 43.00 | 79.00 |
| CO(µg/m³) | 159.00 | 439.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Coimbatore averaged an AQI of 66 while Nayāgarh averaged 98 — a 32-point (48%) gap, with Nayāgarh the more polluted and Coimbatore the cleaner of the two. On 238 days when both cities reported, Coimbatore was cleaner on 148 of them; the average daily gap was 48 AQI points.
Seasonality & days
Coimbatore peaks in November, while Nayāgarh peaks in April. Coimbatore logged 0% Severe days and 90.5% Good-or-Satisfactory days; Nayāgarh was 0% Severe and 47.400000000000006% Good-or-Satisfactory. Longest clean-air streaks: Coimbatore 32 days, Nayāgarh 52 days.
Year-over-year progress
Coimbatore has improved by 5 AQI points (7%) from 2019 to 2024; Nayāgarh has improved by 48 AQI points (32.9%) over the same window. The worst recorded day for Coimbatore reached AQI 279 at SIDCO Kurichi (TNPCB) on 2024-09-28; Nayāgarh hit AQI 336 at Dabuna (OSPCB) on 2023-03-13.
Station-level disparity
Coimbatore spans 2 CPCB stations with a 1-point spread (min 63, max 64); Nayāgarh spans 1 stations with a 0-point spread (min 116, max 116).
Verdict
🏆 Coimbatore has better air quality with an AQI of 5 compared to Nayāgarh's 74. That's a significant difference of 69 points.