Secondary air pollutants in urban and rural Catalonia, Spain: characterizing the precursors, source-contributions, and toxicity 

    In 't Veld, Marten (Date of defense: 2023-11-29)

    (English) Air pollutants can be classed as either primary or secondary pollutants. Primary air pollutants are those that are directly emitted into the atmosphere, whereas secondary air pollutants are generated in the ...