Kollam vs Nashik
Side-by-side air quality comparison between Kollam and Nashik.
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 | Kollam | Nashik |
|---|---|---|
| PM2.5(µg/m³) | 4.60 | 15.80 |
| PM10(µg/m³) | 7.10 | 29.90 |
| NO₂(µg/m³) | 4.40 | 13.90 |
| SO₂(µg/m³) | 1.50 | 14.70 |
| O₃(µg/m³) | 30.00 | 26.00 |
| CO(µg/m³) | 89.00 | 171.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Kollam averaged an AQI of 84 while Nashik averaged 85 — a 1-point (1%) gap, with Nashik the more polluted and Kollam the cleaner of the two. On 959 days when both cities reported, Nashik was cleaner on 536 of them; the average daily gap was 40 AQI points.
Seasonality & days
Kollam peaks in January, while Nashik peaks in November. Kollam logged 0% Severe days and 81% Good-or-Satisfactory days; Nashik was 0% Severe and 65.9% Good-or-Satisfactory. Longest clean-air streaks: Kollam 65 days, Nashik 53 days.
Year-over-year progress
Kollam has improved by 2 AQI points (2.3%) from 2020 to 2024; Nashik has improved by 38 AQI points (30.9%) over the same window. The worst recorded day for Kollam reached AQI 272 at Polayathode Kollam (PCB) on 2024-04-06; Nashik hit AQI 319 at Gangapur Road (MPCB) on 2024-11-24.
Station-level disparity
Kollam spans 1 CPCB stations with a 0-point spread (min 84, max 84); Nashik spans 4 stations with a 12-point spread (min 78, max 90).
Verdict
🏆 Kollam has better air quality with an AQI of 8 compared to Nashik's 30.