Characteristics of sulfate in atmosphere over Xiamen waters and its fluxes to waters

作     者：Huang Ziqiang, Zhang Yuanhui and Chen Liqi Third Institute of Oceanography, State Oceanic Administration, Xiamen 361005, China 

出 版 物：《Acta Oceanologica Sinica》 (海洋学报（英文版）)

年 卷 期：1993年第12卷第4期

页      面：585-595页

核心收录：

学科分类：07[理学] 0707[理学-海洋科学] 

主　　题：Sulfate marine aerosol Xiamen waters 

摘      要：One hundred and seven marine aerosol samples were collected during December 1988 to March 1990, and 3 dry deposition samples, 16 rain samples and 2 Cascade Impacter samples were collected from March to May 1990 at the southeast coast of the Xiamen Island. All the samples were analyzed for SO42-, NO3-, Cl-, Na+ , NH4+, using ion *** results indicate that the concentration of sulfate in marine aerosols over the Xiamen waters appears to be of seasonal variation, in an order of winter spring autumn summer. The mean sulfate concentration lor the total marine aerosol samples over the Xiamen waters is 9. 37 μg/m3, respectively 0. 89 and 8. 48 μg/m3 for the seasalt and non-sea-salt sulfate. The distribution of sulfate shows a bimodal form with a peak in the coarse particle range which is derived from the sea-salt sulfate, and a peak in the fine particle range which is derived from the non-sea-salt sulfate. The total deposition of sulfate to the Xiamen waters is estimated to be 4. 68g/m2 · a, with dry and wet depositions being approximately 2.19 and 2. 49g/m2 · a respectively.