A casement wall in the city of Norco in eastern Spain has been closed due to an air quality issue.
Air pollution in Spain has increased recently due to a new, stricter air quality standard in Spain.
Residents in the area are complaining of poor air quality.
Norco, on the border with Spain, is considered to be the best city for outdoor activities.
It is also a popular tourist destination and hosts several national events each year.
This year, Norco residents have been complaining about poor air.