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摘要
Size-segregated particle samples were collected in October 2004 during the Program of Regional Integrated Experiments of Air Quality over Pearl River Delta 2004 (PRIDE-PRD2004) at the Xinken site on the mouth of the Pearl River. The approach of the PRIDE campaign included simultaneous measurements of gaseous pollutants as well as physical and chemical characterization of particles to realize the regional pollution status and to improve the understanding of atmospheric processes in the PRD region [Zhang, Y.H., Hu, M., Zhong, L.J., Wiedensohler, A., Liu, S., Andreae, M., Wang, W., Fan, M., 2008. Regional integrated experiments of air quality over Pearl River Delta 2004: Overview. Atmospheric Environment, this issue, doi:10.1016/j.atmosenv.2008.03.025]. Results of optical measurements were already published [Cheng, Y. F., Eichler, H., Wiedensohler, A., Heintzenberg, J., Zhang, Y. H., Hu, M., Herrmann, H., Zeng, L. M., Liu, S., Gnauk, T., Bruggemann, E., He, L. Y., 2006. Mixing state of elemental carbon and non-light-absorbing components derived from in situ particle optical properties at Xinken in Pearl River Delta of China. Journal of Geophysical Research 111, D20204, doi: 10.029/2005JD006929]. @@@ A total of eight daytime and nighttime size-segregated samples classified into continental and coastal trajectories were analysed for mass concentration, organic and elemental carbon (OC/EC), dicarboxylic acids (DCAs), alkanes and polycyclic aromatic hydrocarbons (PAHs). Comparisons of day- and nighttime as well as continental and coastal samples were carried out for every component in all considered particle size classes. Measured concentrations for all particle components and significant concentration differences for day/night or continental/coastal samples will be discussed in detail and used for a rough source assignment.
- 出版日期2008-8
- 单位北京大学深圳研究生院; 北京大学
