Kolār vs Surat
Side-by-side air quality comparison between Kolār and Surat.
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 | Surat |
|---|---|---|
| PM2.5(µg/m³) | 5.10 | 25.70 |
| PM10(µg/m³) | 6.20 | 47.30 |
| NO₂(µg/m³) | 8.80 | 22.40 |
| SO₂(µg/m³) | 4.30 | 40.70 |
| O₃(µg/m³) | 34.00 | 35.00 |
| CO(µg/m³) | 183.00 | 266.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Kolār averaged an AQI of 65 while Surat averaged 83 — a 18-point (28%) gap, with Surat the more polluted and Kolār the cleaner of the two. On 377 days when both cities reported, Kolār was cleaner on 246 of them; the average daily gap was 56 AQI points.
Seasonality & days
Kolār peaks in September, while Surat peaks in November. Kolār logged 0.9% Severe days and 85.30000000000001% Good-or-Satisfactory days; Surat was 0% Severe and 55.9% Good-or-Satisfactory. Longest clean-air streaks: Kolār 17 days, Surat 55 days.
Year-over-year progress
Kolār has improved by 56 AQI points (46.3%) from 2018 to 2024; Surat has improved by 139 AQI points (62.6%) over the same window. The worst recorded day for Kolār reached AQI 500 at Tamaka Ind Area (KSPCB) on 2018-09-18; Surat hit AQI 384 at Science Center (SMC) on 2023-08-19.
Station-level disparity
Kolār spans 1 CPCB stations with a 0-point spread (min 71, max 71); Surat spans 1 stations with a 0-point spread (min 123, max 123).
Verdict
🏆 Kolār has better air quality with an AQI of 9 compared to Surat's 47.