Chennai vs Maihar
Side-by-side air quality comparison between Chennai and Maihar.
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 | Maihar |
|---|---|---|
| PM2.5(µg/m³) | 11.70 | 33.30 |
| PM10(µg/m³) | 13.10 | 49.70 |
| NO₂(µg/m³) | 14.20 | 16.50 |
| SO₂(µg/m³) | 10.10 | 10.40 |
| O₃(µg/m³) | 56.00 | 64.00 |
| CO(µg/m³) | 308.00 | 320.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Chennai averaged an AQI of 68 while Maihar averaged 59 — a 9-point (15%) gap, with Chennai the more polluted and Maihar the cleaner of the two. On 1225 days when both cities reported, Maihar was cleaner on 1074 of them; the average daily gap was 56 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; Maihar was 0% Severe and 94.4% Good-or-Satisfactory. Longest clean-air streaks: Chennai 53 days, Maihar 72 days.
Year-over-year progress
Chennai has improved by 25 AQI points (26.9%) from 2017 to 2024; Maihar has improved by 9 AQI points (13.2%) over the same window. The worst recorded day for Chennai reached AQI 391 at Kodungaiyur (TNPCB) on 2021-05-14; Maihar hit AQI 262 at Sahilara Maihar (Cements) on 2022-08-25.
Station-level disparity
Chennai spans 9 CPCB stations with a 27-point spread (min 63, max 90); Maihar spans 1 stations with a 0-point spread (min 56, max 56).
Verdict
🏆 Chennai has better air quality with an AQI of 20 compared to Maihar's 56.