The field-measured size-dependent volatility of ambient fine particles at different heating temperatures and the retrieval of aerosol chemical composition

The observations were conducted at the southeast of Beijing station (39.81°N, 116.48°E) during the winter period from January 28th to February 22nd, 2019, and the summer period from July 15th to August 7th, 2019. To obtain the volatile properties of aerosols by measuring the particle size of aerosols before and after heating using the VTDMA system at heating temperatures of 80, 150, 200, and 300 °C in winter and 25, 100, 200, and 300 °C in summer.