Search | Engineering

Subscribe Submit

Home Journals Focus Achievement Fronts About Us 中文版

Resource Type

Journal Article 2

Year

2011 1

2010 1

Keywords

Baiyangdian 1

PBBs 1

PBDEs 1

PCBs 1

antioxidant enzyme 1

heavy metal 1

lipid peroxidation 1

mixture toxicity 1

polybrominated diphenyl ethers (PBDEs) 1

sediment 1

toxic units (TUs) 1

open ︾

Search scope:

排序： Display mode:

Joint effects of Penta-BDE and heavy metals on

Baohua TANG, Lingyan ZHU, Qixing ZHOU

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 1, Pages 99-110 doi: 10.1007/s11783-010-0260-8

Abstract: The joint toxicity of Penta-BDE (Pe-BDE) and heavy metals including cadmium and copper on ( ) was evaluated on the basis of determining the 48 h survival, antioxidative enzyme responses, and lipid peroxidation. The response was classified as additive, greater than additive, or less than additive by comparing the measured “toxic units, TU” with one. Based on the survival of , less-than-additive interactions were found in most of mixtures treatments. This may be attributed to the different toxicity mechanism between Pe-BDE and metals. Cu and Cd played a greater role in toxicity than what Pe-BDE did. As for the superoxide dismutase (SOD) and catalase (CAT) activity, most response was less than additive. For the glutathione -transferases (GST) activity, most of the greater-than-additive responses were found in the Cu plus Pe-BDE treatments, but the additive responses occurred in Cd plus Pe-BDE treatments and binary metal treatments. For lipid peroxide levels, which were measured as malondialdehyde (MDA) levels, less-than-additive response occurred in the 50% Cd plus 50% Cu and ternary mixture treatments. Results suggested that Pe-BDE, Cd, and Cu could induce different patterns of antioxidant enzyme responses, such as antioxidant/prooxidant responses, depending on their capability to produce reactive oxygen species and antioxidant enzymes to detoxify them.

Keywords： polybrominated diphenyl ethers (PBDEs) heavy metal mixture toxicity toxic units (TUs) antioxidant enzyme

HTML PDF Collect

PHAHs in surface sediments from the Baiyangdian Lake and their potential risk

Zhao Gaofeng,Zhou Huaidong,Fu Yuqin,Zhao Yueqian,Jiang Jinjie,Cai Weiwei,Lu Xiaohong,Yang Xiaoman

Strategic Study of CAE 2010, Volume 12, Issue 6, Pages 41-47

Abstract: The levels of PBBs and PBDEs are lower than those of PCBs in the sediment samples, with a concentrationmost predominant PBDE congeners, with their concentration accounting for 16 % and 21 % of the total PBDEs

Keywords： Baiyangdian sediment PBBs PBDEs PCBs