Прогнозы качества воздуха.

Note that the measurements for O3 (ozone) and SO2 (sulfur dioxide) are taken from the station: Valenciennes Acacias, Nord-Pas-de-Calais and the measurement for CO (carbon monoxide) are taken from the station: FR:Nord-Pas-de-Calais/Nord/Boussières-sur-Sambre







