کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4426494 1309127 2008 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Threat of heavy metal pollution in halophytic and mangrove plants of Tamil Nadu, India
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست شیمی زیست محیطی
پیش نمایش صفحه اول مقاله
Threat of heavy metal pollution in halophytic and mangrove plants of Tamil Nadu, India
چکیده انگلیسی

Mangrove and halophytic plants occur along the coastal areas of Tamil Nadu, south India and these plants have been used in traditional medicine for centuries. Heavy metals are known to pose a potential threat to terrestrial and aquatic biota. However, little is known on the toxic levels of heavy metals found in mangrove and halophytic plants that are used in traditional medicine in India. To understand heavy metal toxicity, we investigated the bioconcentration factors (BCF) of heavy metals in leaves collected from eight mangroves and five halophytes in the protected Pichavaram mangrove forest reserve in Tamil Nadu State, south India. Data presented in this paper describe the impact of essential (Cu, Fe, Mg, Mn and Zn) and non-essential/environmentally toxic trace metals (Hg, Pb and Sn) in mangrove and halophytic medicinal plants. The concentrations of Pb among 13 plant species were higher than the normal range of contamination reported for plants. The average concentration of Hg in the halophytic plants (0.43 ± 0.37 μg/g) was seven times higher than mangrove plants (0.06 ± 0.03 μg/g) and it indicated pollutants from industrial sources affecting halophytes more than mangroves.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Environmental Pollution - Volume 155, Issue 2, September 2008, Pages 320–326
نویسندگان
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