TY  - JOUR
PY  - 2022//
TI  - Evolution of polycyclic aromatic hydrocarbons in the surface sediment of southern Jiaozhou Bay in northern China after an accident of oil pipeline explosion
JO  - Marine pollution bulletin
A1  - Ding, Huiping
A1  - Lan, Jie
A1  - Yao, Shuo
A1  - Zhang, Dahai
A1  - Han, Bin
A1  - Pan, Gang
A1  - Li, Xianguo
SP  - e114039
EP  - e114039
VL  - 183
IS  - 
N2  - The 2013 "Qingdao oil pipeline explosion" contaminated about 2.5 km of shoreline in the Jiaozhou Bay area and aroused widespread concern because of the serious casualties even though it was not the most severe oil-spill contamination in China. To evaluate the long-term impact, we collected thirty-three surface sediment samples after 3 years of the accident, with sixteen polycyclic aromatic hydrocarbons (PAHs) detected. Spatial-temporal variation in PAHs revealed that a minimal impact might still be present after 3 years. Source analysis combined with a one-way ANOVA showed that pyrolytic sources were consistently predominant. The environmental impact was already minimal 3 years later and negligible thereafter. Although the cancer risk has decreased over the years, there has always been a potential hazard to human for specific occupation, with all of the risk values exceeded 10(-6). This study offers a reference for assessing the long-term impact of oil spills in similar bay areas.<p />  <p>Language: en</p>
LA  - en
SN  - 0025-326X
UR  - http://dx.doi.org/10.1016/j.marpolbul.2022.114039
ID  - ref1
ER  -