Levels of trace elements in green turtle eggs collected from Hong Kong: Evidence of risks due to selenium and nickel

James C.W. Lam; Shinsuke Tanabe; Simon K.F. Chan; Michael H.W. Lam; Michael Martin; Paul K.S. Lam

doi:10.1016/j.envpol.2006.02.016

Levels of trace elements in green turtle eggs collected from Hong Kong: Evidence of risks due to selenium and nickel

James C.W. Lam
, Shinsuke Tanabe
, Simon K.F. Chan
, Michael H.W. Lam
, Michael Martin
, Paul K.S. Lam

Research output: Contribution to journal › Article › peer-review

85 Citations (Scopus)

Abstract

Concentrations of 22 trace elements were determined in green turtle (Chelonia mydas) eggs collected from Hong Kong. Concentrations of selenium, lead and nickel in these eggs were generally higher than those reported in other studies. The predicted no effect concentrations (PNEC; ng/g wet weight) of Pb (1000), Se (340 and 6000 for the worst-case and best-case scenarios, respectively) and Ni (17) in the green turtle eggs were estimated. Hazard quotients (HQs) estimate that Se (HQs: 0.2-24.5) and Ni (HQs: 4.0-26.4) may pose some risks to the turtles. Our study also found that concentrations of Ag, Se, Zn, Hg and Pb in the shell of the turtle eggs were significantly correlated with levels in the whole egg contents (yolk + albumen). Once the precise relationships of specific elements are established, egg-shell concentrations may be used as a non-lethal, non-invasive, surrogate for predicting whole egg burden of certain contaminants in marine turtles.

Original language	English
Pages (from-to)	790-801
Number of pages	12
Journal	Environmental Pollution
Volume	144
Issue number	3
DOIs	https://doi.org/10.1016/j.envpol.2006.02.016
Publication status	Published - Dec 2006
Externally published	Yes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 14 Life Below Water

Keywords

Ecological risk assessment
Green turtle eggs
Nickel
Selenium
Trace elements

Access to Document

10.1016/j.envpol.2006.02.016

Cite this

@article{ef77d2ceee2b4b3db98c474eb183c77d,

title = "Levels of trace elements in green turtle eggs collected from Hong Kong: Evidence of risks due to selenium and nickel",

abstract = "Concentrations of 22 trace elements were determined in green turtle (Chelonia mydas) eggs collected from Hong Kong. Concentrations of selenium, lead and nickel in these eggs were generally higher than those reported in other studies. The predicted no effect concentrations (PNEC; ng/g wet weight) of Pb (1000), Se (340 and 6000 for the worst-case and best-case scenarios, respectively) and Ni (17) in the green turtle eggs were estimated. Hazard quotients (HQs) estimate that Se (HQs: 0.2-24.5) and Ni (HQs: 4.0-26.4) may pose some risks to the turtles. Our study also found that concentrations of Ag, Se, Zn, Hg and Pb in the shell of the turtle eggs were significantly correlated with levels in the whole egg contents (yolk + albumen). Once the precise relationships of specific elements are established, egg-shell concentrations may be used as a non-lethal, non-invasive, surrogate for predicting whole egg burden of certain contaminants in marine turtles.",

keywords = "Ecological risk assessment, Green turtle eggs, Nickel, Selenium, Trace elements",

author = "Lam, \{James C.W.\} and Shinsuke Tanabe and Chan, \{Simon K.F.\} and Lam, \{Michael H.W.\} and Michael Martin and Lam, \{Paul K.S.\}",

note = "Funding Information: This project was funded by the Hong Kong Research Grants Council (CityU1112/02M), and the Area of Excellence Scheme under the University Grants Committee of the Hong Kong Special Administration Region, China (Project No. AoE/P-04/2004). This work was undertaken during tenure of a City University Postgraduate Studentship and a Fellowship under the {\textquotedblleft}21st Century COE Program{\textquotedblright} from the Ministry of Education, Culture, Sports, Science and Technology of Japan to J.C.W.L.",

year = "2006",

month = dec,

doi = "10.1016/j.envpol.2006.02.016",

language = "English",

volume = "144",

pages = "790--801",

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}

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T1 - Levels of trace elements in green turtle eggs collected from Hong Kong

T2 - Evidence of risks due to selenium and nickel

AU - Lam, James C.W.

AU - Tanabe, Shinsuke

AU - Chan, Simon K.F.

AU - Lam, Michael H.W.

AU - Martin, Michael

AU - Lam, Paul K.S.

N1 - Funding Information: This project was funded by the Hong Kong Research Grants Council (CityU1112/02M), and the Area of Excellence Scheme under the University Grants Committee of the Hong Kong Special Administration Region, China (Project No. AoE/P-04/2004). This work was undertaken during tenure of a City University Postgraduate Studentship and a Fellowship under the “21st Century COE Program” from the Ministry of Education, Culture, Sports, Science and Technology of Japan to J.C.W.L.

PY - 2006/12

Y1 - 2006/12

N2 - Concentrations of 22 trace elements were determined in green turtle (Chelonia mydas) eggs collected from Hong Kong. Concentrations of selenium, lead and nickel in these eggs were generally higher than those reported in other studies. The predicted no effect concentrations (PNEC; ng/g wet weight) of Pb (1000), Se (340 and 6000 for the worst-case and best-case scenarios, respectively) and Ni (17) in the green turtle eggs were estimated. Hazard quotients (HQs) estimate that Se (HQs: 0.2-24.5) and Ni (HQs: 4.0-26.4) may pose some risks to the turtles. Our study also found that concentrations of Ag, Se, Zn, Hg and Pb in the shell of the turtle eggs were significantly correlated with levels in the whole egg contents (yolk + albumen). Once the precise relationships of specific elements are established, egg-shell concentrations may be used as a non-lethal, non-invasive, surrogate for predicting whole egg burden of certain contaminants in marine turtles.

AB - Concentrations of 22 trace elements were determined in green turtle (Chelonia mydas) eggs collected from Hong Kong. Concentrations of selenium, lead and nickel in these eggs were generally higher than those reported in other studies. The predicted no effect concentrations (PNEC; ng/g wet weight) of Pb (1000), Se (340 and 6000 for the worst-case and best-case scenarios, respectively) and Ni (17) in the green turtle eggs were estimated. Hazard quotients (HQs) estimate that Se (HQs: 0.2-24.5) and Ni (HQs: 4.0-26.4) may pose some risks to the turtles. Our study also found that concentrations of Ag, Se, Zn, Hg and Pb in the shell of the turtle eggs were significantly correlated with levels in the whole egg contents (yolk + albumen). Once the precise relationships of specific elements are established, egg-shell concentrations may be used as a non-lethal, non-invasive, surrogate for predicting whole egg burden of certain contaminants in marine turtles.

KW - Ecological risk assessment

KW - Green turtle eggs

KW - Nickel

KW - Selenium

KW - Trace elements

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DO - 10.1016/j.envpol.2006.02.016

M3 - Article

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JO - Environmental Pollution

JF - Environmental Pollution

IS - 3

ER -

Levels of trace elements in green turtle eggs collected from Hong Kong: Evidence of risks due to selenium and nickel

Abstract

UN SDGs

Keywords

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