DERIVING SITE-SPECIFIC SEDIMENT QUALITY GUIDELINES FOR HONG KONG MARINE ENVIRONMENTS USING FIELD-BASED SPECIES SENSITIVITY DISTRIBUTIONS

2008 ◽  
Vol 27 (1) ◽  
pp. 226 ◽  
Author(s):  
Kevin W.H. Kwok ◽  
Anders BjorgesÆter ◽  
Kenneth M.Y. Leung ◽  
Gilbert C.S. Lui ◽  
John S. Gray ◽  
...  
Keyword(s):  
Hong Kong ◽  
Sediment Quality ◽  
Sediment Quality Guidelines ◽  
Marine Environments ◽  
Species Sensitivity ◽  
Site Specific ◽  
Quality Guidelines ◽  
Species Sensitivity Distributions

scholarly journals Deriving Sediment Quality Guidelines from Field-Based Species Sensitivity Distributions

2005 ◽  
Vol 39 (14) ◽  
pp. 5148-5156 ◽  
Author(s):  
Kenneth M. Y. Leung ◽  
John S. Gray ◽  
W. K. Li ◽  
Gilbert C. S. Lui ◽  
Yuan Wang ◽  
...  
Keyword(s):  
Sediment Quality ◽  
Sediment Quality Guidelines ◽  
Species Sensitivity ◽  
Quality Guidelines ◽  
Species Sensitivity Distributions

Using sediment cores to establish targets for the remediation of aquatic environments

2015 ◽  
Vol 73 (3) ◽  
pp. 628-635 ◽  
Author(s):  
Anna Lintern ◽  
Marion Anderson ◽  
Paul Leahy ◽  
Ana Deletic ◽  
David McCarthy
Keyword(s):  
Sediment Cores ◽  
Sediment Quality ◽  
Aquatic Systems ◽  
Quality Data ◽  
Aquatic Environments ◽  
Site Specific ◽  
European Settlement ◽  
Quality Guidelines ◽  
Water And Sediment ◽  
Water And Sediment Quality

When assigning site-specific restoration targets for deteriorating aquatic systems, it is necessary to have an understanding of the undisturbed or background state of the system. However, the site-specific characteristics of aquatic systems prior to disturbance are mostly unknown, due to the lack of historical water and sediment quality data. This study aims to introduce a method for filling this gap in our understanding, using dated sediment cores from the beds of aquatic environments. We used Bolin Billabong, a floodplain lake of the Yarra River (South-East Australia), as a case study to demonstrate the application of this method. We identified the concentrations of aluminium, cadmium, chromium, copper, iron, lead, manganese, nickel, tin and zinc at 8 cm intervals through the sediment core. This showed that aluminium, chromium, copper, iron, lead, nickel, tin and zinc concentrations in Bolin Billabong sediments significantly increased after European settlement in the river catchment in the mid-19th century. The differences between current Australian sediment quality guidelines trigger values and the background metal concentrations in Bolin Billabong sediments underscore the value of using locally relevant background toxicant concentrations when setting water and sediment quality targets.

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