Misheer Natasha, Kindness A, Jonnalagadda S B
School of Chemistry, Westville Campus, University of KwaZulu-Natal, Durban, South Africa.
J Environ Sci Health B. 2006;41(6):1037-48. doi: 10.1080/03601230600808893.
This study reports the elemental uptake by Plocamium corallorhiza, a Rhodophyta class of coralline alga grown richly along KwaZulu-Natal coastline. The uptake of seven important elements, namely Fe, Mn, As, B, Ti, Zn and Hg, selected based on their abundance in the samples, were investigated for a one-year cycle, from June 2002 to May 2003, at four chosen sites located along the KwaZulu-Natal coastline. The sites spread over 150 km from North to South Coast are Zinkwasi, Ballito, Treasure Beach and Park Rynie. P. corallorhiza possess good manganese and arsenic-accumulating ability and has potential to be an excellent indicator for most of the metals studied. A typical P. corallorhiza sample at Park Rynie (winter) recorded Mn (14 ppm), Fe (6.02 ppm), As (8.4 ppm), B (1580 ppb), Zn (234 ppb), Ti (751 ppb) and Hg (15.8 ppb). The general trend found at all sites was a large decrease in iron concentration in spring and summer and increase in winter. Mercury uptake was lowest in winter and autumn at all sites. The highest mercury levels in the seaweeds were recorded during spring or summer.
本研究报告了珊瑚藻（Plocamium corallorhiza）对元素的吸收情况，珊瑚藻是红藻纲的一类珊瑚藻，在夸祖鲁 - 纳塔尔省海岸线上大量生长。基于样品中元素的丰度选择了七种重要元素，即铁、锰、砷、硼、钛、锌和汞，并于2002年6月至2003年5月在夸祖鲁 - 纳塔尔省海岸线上选定的四个地点进行了为期一年的吸收情况调查。这些地点从北海岸到南海岸绵延150公里，分别是津夸西（Zinkwasi）、巴利托（Ballito）、宝藏海滩（Treasure Beach）和帕克里尼（Park Rynie）。珊瑚藻具有良好的锰和砷积累能力，有可能成为所研究的大多数金属的优秀指示生物。帕克里尼（冬季）的一个典型珊瑚藻样本记录的锰含量为14 ppm、铁含量为6.02 ppm、砷含量为8.4 ppm、硼含量为1580 ppb、锌含量为234 ppb、钛含量为751 ppb、汞含量为15.8 ppb。在所有地点发现的总体趋势是，春季和夏季铁浓度大幅下降，冬季上升。所有地点冬季和秋季的汞吸收量最低。海藻中汞含量最高的记录出现在春季或夏季。
