Document Detail


Seaweeds along KwaZulu-Natal coast of South Africa-3: elemental uptake by Ulva lactuca (Sea lettuce).
MedLine Citation:
PMID:  16760099     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The elemental uptake by Ulva lactuca (Sea lettuce), a marine macro-algae (chlorophyta, green alga) grown richly along KwaZulu-Natal coastline. The total elemental concentrations of seven important elements, namely manganese, iron, arsenic, boron, titanium, zinc and mercury, selected based on their abundance in U. lactuca were investigated for one year cycle (June 2002 to May 2003). The four selected sampling sites, Zinkwasi, Ballito, Treasure Beach and Park Ryrie are spread over 150 km wide along the KwaZulu-Natal coastline from North to South. The Ulva lectuca possess good manganese and arsenic accumulating ability and an excellent bio-indicator for most of the metals studied. A typical U. lectuca sample at Zinkwasi (in winter) recorded Mn (25.3 +/- 1.16 ppm), Fe (21.0 +/- 0.85 ppm), As (6.2 +/- 0.30 ppm), B (935 +/- 14 ppb), Ti (863 +/- 34 ppb), Zn (421 +/- 21 ppb), and Hg (61.3 +/- 1.2 ppb). The general trend found at all sites was high elemental concentrations in winter and a decrease in concentrations from winter to spring and summer. Iron uptake was lowest in summer and autumn at all sites. Ulva lactuca recorded highest mercury levels (>400 ppb) during the spring season at the Treasure Beach site near Durban.
Authors:
Natasha Misheer; A Kindness; S B Jonnalagadda
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering     Volume:  41     ISSN:  1093-4529     ISO Abbreviation:  J Environ Sci Health A Tox Hazard Subst Environ Eng     Publication Date:  2006  
Date Detail:
Created Date:  2006-06-08     Completed Date:  2006-10-26     Revised Date:  2009-08-14    
Medline Journal Info:
Nlm Unique ID:  9812551     Medline TA:  J Environ Sci Health A Tox Hazard Subst Environ Eng     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1249-59     Citation Subset:  IM    
Affiliation:
School of Chemistry, Westville Campus, University of KwaZulu-Natal, Durban, South Africa.
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MeSH Terms
Descriptor/Qualifier:
Arsenic / analysis*
Boron / analysis*
Environmental Monitoring
Metals / analysis*
Seasons
South Africa
Ulva / chemistry*
Water Pollutants, Chemical / analysis*
Chemical
Reg. No./Substance:
0/Metals; 0/Water Pollutants, Chemical; 7440-38-2/Arsenic; 7440-42-8/Boron

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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