The Influences of Spatial-temporal Changes of Source Input on the Changes of Cd in Marine Bay

2018 International Conference on Construction, Aviation and Environmental Engineering

生态环境科学;生物科学

Yang, Dongfang^1^2^3 ; Wu, Yunjie^1^2 ; Fan, Bailing^1^2 ; Su, Chunhua^1^2 ; Zhu, Sixi^1^2

Research Center for Karst Wetland Ecology, Guizhou Minzu University, Guizhou Guiyang, Guizhou Guiyang, China^1

College of Chemistry and Environmental Science, Guizhou Minzu University, Shanghai

550025, China^2

North China Sea Environmental Monitoring Center, SOA, Qingdao

266033, China^3

关键词: Horizontal distribution;    Jiaozhou Bay;    Sampling site;    Source strength;    Spatial-temporal changes;    Vertical variation;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/233/4/042004/pdf
DOI  :  10.1088/1755-1315/233/4/042004

来源: IOP

【 摘 要 】

Using investigation on Cd in May and August,1990, this paper analyzed the spatial-temporal changes of Cd sources and the influences on spatial-temporal changes of Cd in Jiaozhou Bay. The horizontal distributions in May and August were different, and the vertical variations in different sampling sites were also different. The major Cd sources were the wharf and atmosphere deposition, whose source strengths were 1.02 μg L-1 and 1.26 μg L-1, respectively. From May to August, the major Cd source was changing from the wharf to atmosphere deposition, resulting in the changes of the source strengths and the source input locations, and therefore the spatial-temporal changes of Cd contents in the bay.