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h01291

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[求助] 求助段落翻译 + 化学

In order to maintain health for the general population, a great deal of preventative measures is spent to determine both exogenous and endogenous levels of metals in foodstuffs.
The target hazard quotient (THQ) was developed by US EPA (1989) as one quantitative way to evaluate potential health risks associated with long-term exposure to chemical pollutants in foodstuffs, and the THQ is a ratio between the measured concentration and the oral reference dose, weighted by the length and frequency of exposure, amount ingested, body weight and average time for non-carcinogens.
A few of THQ investigations were carried out on foodstuffs with a focus on estimating health risks associated with exposure to heavy metals found in seafoods (US EPA,1989; Chien et al., 2002), milk (Chien et al., 2006), beverages (Naughton and Petro ′czi, 2008) and vegetables at mine sites (Zhuang et al., 2009), but no study reported the individual and combined THQ values for commonly consumed vegetables from markets.
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白金凤

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h01291: 金币+25, 翻译EPI+1, ★★★★★最佳答案 2015-04-17 22:00:59
为保证大多数人的健康,采取了许多预防措施来确定食材中内在和外来的金属含量。
US EPA (1989)将靶标危害系数(THQ)定义为测量值与标准剂量的比值(通过接触非致癌物质的时间长短及频率,获取量,体重,平均时间进行测量),它是一种定量的评价因接触食材中化学污染物而造成健康危机的方法。
尽管有少数对衡量食材中,如海产品(美国EPA,1989; Chien等人2002)、牛奶(chien等人, 2006)、饮料( Naughton和Petro′czi, 2008)、矿区附近的蔬菜( Zhuang等人, 2009)的重金属对健康的危害进行报道,但是却对对日常市场中购买的蔬菜中的个体和平均THQ值有过研究。
3楼2015-04-17 10:59:26
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jiangguofeng

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h01291: 金币+5, 也谢谢您的翻译 2015-04-17 22:01:39
为了保护母体健康,采取了许多预防措施去测定食物中外源和内源的金属含量。
目标危害系数(THQ)由美国环境保护局(1989)开发,一种用来评价长期接触食物内的化学污染物所带来的健康隐患的定量分析方法。
进行了几个食物的THQ调查,重点评估接触海产食品(美国EPA,1989; Chien等人2002)、牛奶(chien等人, 2006)、饮料( Naughton和Petro′czi, 2008)和矿场附近的蔬菜( Zhuang等人, 2009)中含有的重金属所带来的健康风险,然而,还没有研究报告对于一般耗费的市售蔬菜的单一的和联合的THQ评价。
2楼2015-04-17 09:50:26
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