Source apportionment of particle number size distribution in urban background and traffic stations in four European cities.
Environment International(2020)
摘要
•Ultrafine particle sources were identified and quantified in four European cities.•Common sources were Photonucleation, different Traffic sources, and Secondary.•Maximum contribution of traffic sources ranged 71–94% of total particle number.•Airport emissions contributed to nucleation particles in urban background areas.
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关键词
Positive Matrix Factorization,Ultrafine particles,Particle number size distributions,Photonucleation,Traffic emissions,Airport emissions
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