Kolār vs Shillong
Side-by-side air quality comparison between Kolār 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 | Kolār | Shillong |
|---|---|---|
| PM2.5(µg/m³) | 5.80 | 24.90 |
| PM10(µg/m³) | 10.80 | 29.30 |
| NO₂(µg/m³) | 1.40 | 1.20 |
| SO₂(µg/m³) | 2.00 | 4.00 |
| O₃(µg/m³) | 86.00 | 143.00 |
| CO(µg/m³) | 137.00 | 292.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Kolār averaged an AQI of 65 while Shillong averaged 75 — a 10-point (15%) gap, with Shillong the more polluted and Kolār the cleaner of the two. On 504 days when both cities reported, Shillong was cleaner on 345 of them; the average daily gap was 36 AQI points.
Seasonality & days
Kolār peaks in September, while Shillong peaks in February. Kolār logged 0.9% Severe days and 85.30000000000001% Good-or-Satisfactory days; Shillong was 0% Severe and 92% Good-or-Satisfactory. Longest clean-air streaks: Kolār 17 days, Shillong 113 days.
Year-over-year progress
Kolār has improved by 56 AQI points (46.3%) from 2018 to 2024; Shillong has worsened by 41 AQI points (120.6%) over the same window. The worst recorded day for Kolār reached AQI 500 at Tamaka Ind Area (KSPCB) on 2018-09-18; Shillong hit AQI 212 at Lumpyngngad Shillong (PCB) on 2024-02-19.
Station-level disparity
Kolār spans 1 CPCB stations with a 0-point spread (min 71, max 71); Shillong spans 2 stations with a 2-point spread (min 42, max 44).
Verdict
🏆 Kolār has better air quality with an AQI of 11 compared to Shillong's 42.