Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9465829 | Marine Pollution Bulletin | 2005 | 19 Pages |
Abstract
This study found that the levels of some highly toxic heavy metals (i.e. Cd, Hg and Pb) in the mussel P. viridis did not exceed the recommended limits for shellfish as food in Hong Kong (i.e. Cd: 2.0Â ppm; Hg: 0.5Â ppm; Pb: 6.0Â ppm wet weight). The levels of As and Ni in P. viridis were also well below the action limits set by the US FDA (i.e. As: 86Â ppm; Ni: 80Â ppm wet weight). DDT and PCB contaminations in P. viridis were below the concentrations of concern. Compared with data obtained in the 1980s, the current levels of DDTs in P. viridis were 4-16 times lower; whereas Pb concentrations recorded in Tsim Sha Tsui have also been lowered significantly. This is mainly related to reduction in local and regional pollution sources in the past 20 years.
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Oceanography
Authors
J.H. Liu, C.S.W. Kueh,