Kanchipuram vs Siliguri
Side-by-side air quality comparison between Kanchipuram and Siliguri.
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 | Siliguri |
|---|---|---|
| PM2.5(µg/m³) | 9.40 | 85.20 |
| PM10(µg/m³) | 11.10 | 107.60 |
| NO₂(µg/m³) | 10.40 | 14.20 |
| SO₂(µg/m³) | 4.60 | 6.70 |
| O₃(µg/m³) | 44.00 | 98.00 |
| CO(µg/m³) | 243.00 | 546.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Kanchipuram averaged an AQI of 51 while Siliguri averaged 81 — a 30-point (59%) gap, with Siliguri the more polluted and Kanchipuram the cleaner of the two. On 138 days when both cities reported, Kanchipuram was cleaner on 110 of them; the average daily gap was 42 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; Siliguri was 0.1% Severe and 61.8% Good-or-Satisfactory. Longest clean-air streaks: Kanchipuram 18 days, Siliguri 180 days.
Year-over-year progress
Kanchipuram has improved by 18 AQI points (26.1%) from 2022 to 2024; Siliguri has improved by 39 AQI points (32.5%) over the same window. The worst recorded day for Kanchipuram reached AQI 320 at Kilambi (TNPCB) on 2023-05-22; Siliguri hit AQI 415 at Ward-32 Bapupara (WBPCB) on 2018-02-08.
Station-level disparity
Kanchipuram spans 1 CPCB stations with a 0-point spread (min 57, max 57); Siliguri spans 1 stations with a 0-point spread (min 107, max 107).
Verdict
🏆 Kanchipuram has better air quality with an AQI of 16 compared to Siliguri's 184. That's a significant difference of 168 points.