title: Distribution of some hydrocarbons in ambient air near Delft and the influence on the formation of secondary air pollutants.
abstract: The relative concentrations of hydrocarbons in the atmosphere may provide information concerning their origin. It appears that the hydrocarbon composition measured in Delft (The Netherlands) is entirely different for northern and southern wind directions. This points to different sources. The most important sources for this area are natural gas leaks, traffic, and (petrochemical) industries. It appears that the relative potential of the precursor mix to form peroxyacetylnitrate (PAN) and ozone is also different for both wind directions.
mesh_terms: D000392:Air Movements; D000393:Air Pollutants / Q000032:analysis*; D000395:Air Pollutants, Occupational / Q000032:analysis*; D002617:Chemical Industry; D005740:Gases; D009426:Netherlands; D001335:Vehicle Emissions; D014919:Wind
chemical_list: D000393:Air Pollutants; D000395:Air Pollutants, Occupational; D005740:Gases; D001335:Vehicle Emissions