Environmental status and early warning value of the pollutant Semicarbazide in Jincheng and Sishili Bays, Shandong Peninsula, China.
A verified method for measuring Semicarbazide (SEM) in seawater, sediments, and shellfish was developed based on ultra performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS). A total of 30 stations were radially distributed in Jincheng and Sishili Bays in the Bohai and Yellow Seas, and 1025 monitoring data were collected in 41 voyages, 615 seawater samples, 320 sediment samples and 90 shellfish samples. The concentration ranged from 0.011μg/L to 0.093μg/L and 0 to 0.75μg/kg in seawater and shellfish respectively, but SEM in sediment was all below the limit of detection. Temporal and spatial distribution of SEM was investigated using multivariate analysis to estimate the degree of SEM pollution. Based on the SEM concentration in the three sample types, together with our previous findings, early warning values were deduced for SEM in seawater, and the developed method overcame shortcomings with existing technologies. The results may be helpful to draft national baseline values for SEM in seawater and sediments, and provide a scientific basis for assessing the impacts of SEM on marine ecology and human health.
Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, 17 Chunhui Road, Yantai City, Shandong Province, China; Shandong Marine Resource and Environment Research Institute, 216 Changjiang Road, Yantai City, Shandong Province, China; University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing City, China.
Xiuhui
X
Tian
Shandong Marine Resource and Environment Research Institute, 216 Changjiang Road, Yantai City, Shandong Province, China.
Yingjiang
Y
Xu
Shandong Marine Resource and Environment Research Institute, 216 Changjiang Road, Yantai City, Shandong Province, China.
Xianghong
X
Gong
Shandong Marine Resource and Environment Research Institute, 216 Changjiang Road, Yantai City, Shandong Province, China.
Dianfeng
D
Han
Shandong Marine Resource and Environment Research Institute, 216 Changjiang Road, Yantai City, Shandong Province, China.
Zhongquan
Z
Wang
Shandong Marine Resource and Environment Research Institute, 216 Changjiang Road, Yantai City, Shandong Province, China.
Quanli
Q
Zhou
Shandong Marine Resource and Environment Research Institute, 216 Changjiang Road, Yantai City, Shandong Province, China.
Chunxiao
C
Sun
Shandong Marine Resource and Environment Research Institute, 216 Changjiang Road, Yantai City, Shandong Province, China.
Chuanbo
C
Ren
Shandong Marine Resource and Environment Research Institute, 216 Changjiang Road, Yantai City, Shandong Province, China.
Jinglin
J
Xue
Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, 17 Chunhui Road, Yantai City, Shandong Province, China; Ludong University, 186 Red Flag Middle Road, Yantai City, Shandong Province, China. Electronic address: tianxiuhui127@163.com.
Chuanhai
C
Xia
Bohai and Yellow Seas; Distribution; Early warning value; Semicarbazide; UPLC-MS/MS