Submarine groundwater discharge and chemical behavior of tracers in Laizhou Bay, China

Zhang, Yan1,2,3; Li, Hailong3,4,5; Wang, Xuejing4,5; Wang, Chaoyue6; Xiao, Kai1,2,3; Qu, Wenjing1,2,3

2018-09

10.1016/j.jenvrad.2018.04.002

JOURNAL OF ENVIRONMENTAL RADIOACTIVITY   影响因子和分区

0265-931X

1879-1700

Naturally occurring radon (Rn-222) and radium isotopes are widely used to trace water mixing and submarine groundwater discharge (SGD) in the coastal zones. However, their activities in groundwater are variable both spatially and temporally. Here, time series sampling of Rn-222 and radium was conducted to investigate their behavior in intertidal groundwater of Laizhou Bay, China. The result shows that groundwater redox conditions have an important impact on the behavior of tracers. The activities of tracers will decrease under oxidizing conditions and increase under reducing conditions. Radon and radium mass balance models were used to evaluate the flushing time and SGD based on spatial surveys in Laizhou Bay. The flushing time is estimated to be 32.9-55.3 d with coupled models, which agrees well with the result of tidal prism model. The trace-derived SGD in the whole bay ranges from 6.1 x 10(8) to 9.0 x 10(8) m(3)/d and the re-circulated seawater (RSGD) ranges from 5.5 x 10(8) to 8.5 x 10(8) m(3)/d. The average SGD and RSGD fluxes are 22.8 and 21.1 times greater than the Yellow River discharge in April 2014, respectively. The study provides a better understanding of the dynamics of coastal groundwater and behavior of tracers in a well-studied bay system.

Radon and radium isotopes Submarine groundwater discharge (SGD) Flushing time Behavior of tracers Laizhou bay

SCI ; EI

英语

通讯

National Natural Science Foundation of China[41430641]

Environmental Sciences & Ecology

Environmental Sciences

WOS:000433653400020

ELSEVIER SCI LTD

20181705041542

Coastal zones ; Groundwater ; Isotopes ; Radium ; Radon ; Submarines

Groundwater:444.2 ; Marine Science and Oceanography:471 ; Radioactive Materials, General:622.1 ; Combat Naval Vessels:672.1

ENVIRONMENT/ECOLOGY

Web of Science

1.China Univ Geosci Beijing, MOE Key Lab Groundwater Circulat & Environm Evolu, Beijing 100083, Peoples R China
2.China Univ Geosci Beijing, Sch Water Resources & Environm, Beijing 100083, Peoples R China
3.China Univ Geosci Beijing, State Key Lab Biogeol & Environm Geol, Beijing 100083, Peoples R China
4.Southern Univ Sci & Technol, Sch Environm Sci & Engn, Shenzhen 518055, Peoples R China
5.Southern Univ Sci & Technol, Shenzhen Key Lab Soil & Groundwater Pollut Contro, Shenzhen 518055, Peoples R China
6.Hebei GEO Univ, Sch Water Resources & Environm, Shijiazhuang 050031, Hebei, Peoples R China

Zhang, Yan,Li, Hailong,Wang, Xuejing,et al. Submarine groundwater discharge and chemical behavior of tracers in Laizhou Bay, China[J]. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY,2018,189:182-190.

Zhang, Yan,Li, Hailong,Wang, Xuejing,Wang, Chaoyue,Xiao, Kai,&Qu, Wenjing.(2018).Submarine groundwater discharge and chemical behavior of tracers in Laizhou Bay, China.JOURNAL OF ENVIRONMENTAL RADIOACTIVITY,189,182-190.

Zhang, Yan,et al."Submarine groundwater discharge and chemical behavior of tracers in Laizhou Bay, China".JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 189(2018):182-190.