Kanchipuram vs Shillong
Side-by-side air quality comparison between Kanchipuram and Shillong.
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 | Kanchipuram | Shillong |
|---|---|---|
| PM2.5(µg/m³) | 9.70 | 20.40 |
| PM10(µg/m³) | 11.70 | 23.70 |
| NO₂(µg/m³) | 12.20 | 4.20 |
| SO₂(µg/m³) | 4.60 | 5.70 |
| O₃(µg/m³) | 41.00 | 99.00 |
| CO(µg/m³) | 265.00 | 305.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Kanchipuram averaged an AQI of 51 while Shillong averaged 75 — a 24-point (47%) gap, with Shillong the more polluted and Kanchipuram the cleaner of the two. On 91 days when both cities reported, Shillong was cleaner on 69 of them; the average daily gap was 31 AQI points.
Seasonality & days
Both cities see their worst air in February on average. Kanchipuram logged 0% Severe days and 94% Good-or-Satisfactory days; Shillong was 0% Severe and 92% Good-or-Satisfactory. Longest clean-air streaks: Kanchipuram 18 days, Shillong 113 days.
Year-over-year progress
Kanchipuram has improved by 18 AQI points (26.1%) from 2022 to 2024; Shillong has worsened by 41 AQI points (120.6%) over the same window. The worst recorded day for Kanchipuram reached AQI 320 at Kilambi (TNPCB) on 2023-05-22; Shillong hit AQI 212 at Lumpyngngad Shillong (PCB) on 2024-02-19.
Station-level disparity
Kanchipuram spans 1 CPCB stations with a 0-point spread (min 57, max 57); Shillong spans 2 stations with a 2-point spread (min 42, max 44).
Verdict
🏆 Kanchipuram has better air quality with an AQI of 16 compared to Shillong's 34.