英语翻译The prevalent tribulations with heavy metals are that th

英语翻译
The prevalent tribulations with heavy metals are that they are persistent and they bioaccumulate in the time periods (Anu et al.,2009).So,in addition to posing a threat to various coastal ecosystems like mangroves,seagrasses and corals around the world,toxic metals also pose a long-term public health risk,especially for the human population that relies on fishery resources.In an area like Andaman islands,which is known as one of the biodiversity hot spots of the country,where the lives of people have higher dependents on the waters surrounding them either by way of fishing or tourism and other related activities,even a small variation in the sea surrounding them can cause severe impact on their life and property.Information regarding the heavy metal concentration in the marine sediments of the Andaman and Nicobar region is limited (Sanzgiry and Braganca,1981,Sen Gupta et al.,1981,Mukherjee and Mehrotra,1992 and Ramesh et al.,2006) and are at selected locations and not covering all the ecosystems.An assessment is thus necessary to appraise the concentration of heavy metals in different coastal ecosystems of the Andaman region so as to understand the present condition of the ecosystems and to compile the baseline data for future monitoring.But,there is no data on the distribution and concentration of metals in different coastal ecosystems prevailing in the same eco-region which is essential to understand the vulnerability of these ecosystems to the heavy metal pollution.Hence,the present study was carried out on the distribution pattern of heavy metals viz.Al,Cd,Co,Cr,Cu,Fe,Mg,Mn,Ni,Pb and Zn in the sediments of mangroves (MG),seagrasses (SG),dead corals (DC) and sandy beach (SB) environs of the Andaman Islands.
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重金属流行的磨难,他们坚持他们的生物蓄积时间（Anu等人.,2009）.所以,除了提出不同的沿海生态系统的威胁,如红树林,世界各地的海草和珊瑚,有毒金属,也是一个长期的公共健康风险,尤其是依赖于渔业资源的人口.在一个地区的安达曼群岛,这被称为一个国家的生物多样性热点,在那里人们的生活已经在通过钓鱼和旅游等相关活动的周围水域较高的家属,即使一个小的变化在海洋周围可造成对生命和财产造成了严重的影响.对于在安达曼和尼科巴群岛地区的海洋沉积物中重金属的浓度是有限的信息（sanzgiry和布拉甘卡,1981,森Gupta等人.,1981,穆克吉和特拉,1992和Ramesh等人.,2006）和在选定的位置并没有涵盖所有的生态系统.因此,有必要评估评价在安达曼地区不同的沿海生态系统重金属浓度以了解生态系统的现状和未来的监测数据编制基准.但是,有在不同的沿海生态系统在同一生态区,了解这些生态系统的脆弱性对重金属污染的基本流行的金属浓度分布没有数据.因此,本研究对重金属的分布格局进行了分.铝,镉,钴,铬,铜,铁,镁,锰,镍,在红树林沉积物中海草,死珊瑚和沙滩的安达曼群岛周围.