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首页> 外文期刊>BioTechnology: An Indian Journal >Calculation model based on the Gaussian diffusion of heavy metal pollution sources
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Calculation model based on the Gaussian diffusion of heavy metal pollution sources

机译：基于高斯扩散的重金属污染源计算模型

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摘要

The analysis on urban topsoil heavy metal pollution is the important foundation of urban management and urban planning. The topsoil in the city proper was uniformly sampled to measure the concentration data of 8 kinds of heavy metals at each sampling point. The evaluating method of the single factor index and the Nemerow comprehensive pollution index method were adopted to analyze the degree of heavy metal pollution in different areas in the city. Through analyzing the propagation characteristics of heavy metal contamination in the air, solids and the liquid, a mathematical model was constructed utilizing the Gauss equation to confirm the location of the polluter and eight kinds of heavy metal polluters were accurately calculated utilizing the sampled data. To be more realistic, considering the influence of factors like wind speed, gravity deposit, raindrop deposit and others on heavy metal contamination concentration’s distribution, optimized Gaussian Model after reasonable correction is built.
机译：城市表层土壤重金属污染分析是城市管理和城市规划的重要基础。对市区内的表层土壤进行均匀采样，以测量每个采样点上8种重金属的浓度数据。采用单因素指标评价法和Nemerow综合污染指数法对城市不同地区的重金属污染程度进行了分析。通过分析空气，固体和液体中重金属污染物的传播特性，利用高斯方程建立了一个数学模型来确定污染源的位置，并利用采样数据准确计算出八种重金属污染源。为了更加现实，考虑风速，重力沉积，雨滴沉积等因素对重金属污染浓度分布的影响，经过合理校正后，建立了优化的高斯模型。

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