Assessing potential risk of heavy metal exposure from consumption of home-produced vegetables by urban populations.
Assessing potential risk of heavy metal exposure from consumption of home-produced vegetables by urban populations.
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DOI：
10.1289/ehp.5589
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发表时间：
2004-02
影响因子：
10.4
通讯作者：
Thornton I
中科院分区：
文献类型：
--
作者：
Hough RL;Breward N;Young SD;Crout NM;Tye AM;Moir AM;Thornton I
我们进行了风险评估的金属接触的人口亚组生活在城市的网站上，和增长的食物。我们模拟了镉，铜，镍，铅，锌的选择通常种植的分配和花园蔬菜的吸收。广义线性交叉验证表明，最终的预测粮食作物中的镉，铜，镍，锌含量是令人满意的，而铅吸收模型不太稳健。我们使用蔬菜中金属的预测浓度来评估人类从自产食物来源中暴露的风险。还估计了其他接触途径（消费商业生产的食品、吸入灰尘和摄入土壤）的风险。这些模型被应用到一个地球化学数据库的城市在西米德兰兹郡，英国。风险定义为“危害指数”，绘制了三个人口亚组的地图：普通人、高度接触者和高度接触婴儿（假定为2岁儿童）。结果表明，在92%的城市地区种植的食物对普通人亚组的风险最小。然而，更脆弱的人群亚组（高度接触者和高度接触婴儿）的危险指数值大于1。这项研究强调了针对具体地点的风险评估和“适合使用”的市区重建方法的重要性。
We performed a risk assessment of metal exposure to population subgroups living on, and growing food on, urban sites. We modeled uptake of cadmium, copper, nickel, lead, and zinc for a selection of commonly grown allotment and garden vegetables. Generalized linear cross-validation showed that final predictions of Cd, Cu, Ni, and Zn content of food crops were satisfactory, whereas the Pb uptake models were less robust. We used predicted concentrations of metals in the vegetables to assess the risk of exposure to human populations from homegrown food sources. Risks from other exposure pathways (consumption of commercially produced foodstuffs, dust inhalation, and soil ingestion) were also estimated. These models were applied to a geochemical database of an urban conurbation in the West Midlands, United Kingdom. Risk, defined as a "hazard index," was mapped for three population subgroups: average person, highly exposed person, and the highly exposed infant (assumed to be a 2-year-old child). The results showed that food grown on 92% of the urban area presented minimal risk to the average person subgroup. However, more vulnerable population subgroups (highly exposed person and the highly exposed infant) were subject to hazard index values greater than unity. This study highlights the importance of site-specific risk assessment and the "suitable for use" approach to urban redevelopment.
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影响因子：
6.8
作者：
Calabrese, EJ;Stanek, EJ;Barnes, RM
通讯作者：
Barnes, RM
影响因子：
9.8
作者：
Chronopoulos, J;Haidouti, C;Massas, I
通讯作者：
Massas, I
DOI：
10.1111/j.1365-2389.1988.tb01190.x
发表时间：
1988-03-01
期刊：
JOURNAL OF SOIL SCIENCE
影响因子：
--
作者：
ANDERSON, PR;CHRISTENSEN, TH
通讯作者：
CHRISTENSEN, TH
影响因子：
2.9
作者：
Dudka, S;Miller, WP
通讯作者：
Miller, WP
影响因子：
6.5
作者：
HOWARD, PJA;HOWARD, DM
通讯作者：
HOWARD, DM