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2篇 您的检索式:作者名="Andrew C.Chang"
    题名 作者 年代 出处 被引量
1土壤-作物污染物迁移分配与食物安全的评价模型及其应用显示文摘人类对潜在有毒污染物的接触及其健康风险是当今环境科学与医学共同关心的热点问题 .而污染土壤中有毒污染物在土壤 植物系统迁移与转化是其中的关键基础科学问题 .本文基于对现有资料的分析 ,提出计算污染毒物的环境控制标准的数学模型—污染生态模型和环境化学模型 .模型计算结果表明 ,未污染条件下的土壤 植物间元素分配参数不符合污染土壤环境中的土壤 食用作物 人类间污染物分配的特点 .因此 ,制定土壤环境控制标准必须考虑实地土壤的环境化学特点 .本文建立的模型及其对污染物的土壤环境控制标准的计算结果 。潘根兴 Andrew C.Chang Albert L.Page 2002应用生态学报2002,13,7:74
2Mass balance-based regression modeling of Cd and Zn accumulation in urban soils of Beijing显示文摘Accumulation of heavy metals in urban soil can pose adverse impacts on public health and terrestrial ecosystems. We developed a mass balance-based regression model to simulate the heavy metal accumulation in urban soils as a function of time and to explore connections between metal concentration and urbanization processes. Concentrations of Cd and Zn in 68 residential soil samples in the urban area of Beijing were used. The background concentrations, the loss rates and the input fluxes of Cd and Zn in urban soils of Beijing during the last three decades were estimated using a regression of the time series of accumulations of the metals. Based on the regression estimates, we simulated the general trends of Cd and Zn accumulation in the soils from 1978 to 2078. The concentrations of Cd and Zn in urban soil generally increased with the population growth, vehicle use and coal consumption. The mean concentrations of Cd and Zn in urban soil of Beijing would increase by 3 fold over the next 70 years for the current development scenario. The mass balance-based regression approach, which is able to reconstruct the history data of urban soil pollution, provides fundamental information for urban planning and environmental management.Chi Peng Meie Wang Weiping Chen Andrew C.Chang John C.Crittenden 2017Journal of Environmental Sciences2017,29,3:6
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