The changes of Cd sources in Jiaozhou Bay 1979-1983

2nd International Conference on Materials Science, Energy Technology and Environmental Engineering

材料科学;能源学;生态环境科学

Yang, Dongfang^1,2,3 ; Wang, Qiang^1,2 ; Zhu, Sixi^1,2 ; Wang, Zhikang^1,2 ; Su, Chunhua^1,2

Research Center for Karst Wetland Ecology, Guizhou Minzu University, Guiyang

550025, China^1

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

550025, China^2

North China Sea Environmental Monitoring Center, SOA, Qingdao

266033, China^3

关键词: Human activities;    Jiaozhou Bay;    Overland runoffs;    Pollution sources;    River flow;    Source control;    Source strength;    Spatial temporals;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/81/1/012095/pdf
DOI  :  10.1088/1755-1315/81/1/012095

来源: IOP

【 摘 要 】

Many marine bays have been polluted due to the rapid development of economic and population. Understanding the changes of pollution sources of pollutants in marine bays is essential to pollution control. This paper analyzed the changes of Cd in Jiaozhou Bay during 1979-1983. Results showed that there were six Cd sources including marine current, river flow, island top, atmosphere deposition, overland runoff and wharf, whose source strengths were 0.12-0.25 μg L-1, 0.07-0.85 μg L-1, 0.48-3.33 μg L-1, 0.14-0.55 μg L-1, 0.38-0.53 μg L-1and 0.16-1.50 μg L-1, respectively. The changes of the sources were mainly determined by human activities, and the distributions of Cd in Jiaozhou Bay were influenced by the spatial-temporal variations of the sources. In general, source control would be necessary countermeasures of pollution control in marine bay.