Figure 1
From: Evolution and forecasting of PM10 concentration at the Port of Gijon (Spain)

Source: Google Maps, Map data©2019 Google; https://www.google.es/maps/@43.5547854,-5.6995551,9849m/data=!3m1!1e3. The map was edited with PowerPoint version: 16.0.12527.20260.
(a) position of the Port of Gijon on the North Atlantic coast of Spain, (b) aerial picture of Gijón and its Port (inside the red line) including the position of the weather station.