TY - JOUR
T1 - Characterizing the parent and oxygenated polycyclic aromatic hydrocarbons in mangrove sediments of Hong Kong
AU - Wang, Xiaowei
AU - Yuan, Ke
AU - Yang, Lihua
AU - Lin, Li
AU - Tam, Nora F.Y.
AU - Chen, Baowei
AU - Luan, Tiangang
PY - 2015/9/15
Y1 - 2015/9/15
N2 - Parent and oxygenated polycyclic aromatic hydrocarbons (PAHs) were investigated in mangrove sediments of Hong Kong. Most of the analytes were detected, and the dominant carbonylic and hydroxylated PAHs in mangrove sediments were 9-fluorenone and 2-hydroxy fluorene, respectively. The concentration of 9-fluorenone and 9,10-anthraquinone was higher than their parent PAHs. Moreover, the concentration of total organic matter (TOM) related with those of the parent PAHs and carbonylic PAHs, except for hydroxylated PAHs, which indicated that TOM was not the only factor regulating the distribution of oxygenated PAHs. Nevertheless, the parent PAHs in mangrove sediments was correlated positively with carbonylic PAHs which demostrated not only the similar source but also the fate of these two compound class. However, hydroxylated PAHs had different source by comparing with parent PAHs and carbonylic PAHs, they were probably originated from biodegradation and accumulated in mangrove sediments.
AB - Parent and oxygenated polycyclic aromatic hydrocarbons (PAHs) were investigated in mangrove sediments of Hong Kong. Most of the analytes were detected, and the dominant carbonylic and hydroxylated PAHs in mangrove sediments were 9-fluorenone and 2-hydroxy fluorene, respectively. The concentration of 9-fluorenone and 9,10-anthraquinone was higher than their parent PAHs. Moreover, the concentration of total organic matter (TOM) related with those of the parent PAHs and carbonylic PAHs, except for hydroxylated PAHs, which indicated that TOM was not the only factor regulating the distribution of oxygenated PAHs. Nevertheless, the parent PAHs in mangrove sediments was correlated positively with carbonylic PAHs which demostrated not only the similar source but also the fate of these two compound class. However, hydroxylated PAHs had different source by comparing with parent PAHs and carbonylic PAHs, they were probably originated from biodegradation and accumulated in mangrove sediments.
KW - Distribution
KW - Mangrove
KW - Oxygenated PAHs
KW - Polycyclic Aromatic Hydrocarbons (PAHs)
KW - Sediments
UR - http://www.scopus.com/inward/record.url?scp=84941316747&partnerID=8YFLogxK
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-84941316747&origin=recordpage
U2 - 10.1016/j.marpolbul.2015.06.033
DO - 10.1016/j.marpolbul.2015.06.033
M3 - RGC 21 - Publication in refereed journal
SN - 0025-326X
VL - 98
SP - 335
EP - 340
JO - Marine Pollution Bulletin
JF - Marine Pollution Bulletin
IS - 1-2
ER -