我国现行大气环境影响评价预测模型的若干问题及其改进 |
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引用本文: | 胡晨燕,徐斌,施介宽,赵修华.我国现行大气环境影响评价预测模型的若干问题及其改进[J].环境保护科学,2004,30(2):59-62. |
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作者姓名: | 胡晨燕 徐斌 施介宽 赵修华 |
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作者单位: | 同济大学环境科学与工程学院,上海,200092;东华大学环境科学与工程学院,上海,200051 |
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摘 要: | 我国现行大气环境影响预测评价模型存在以下几个问题:大气混合层高度求算偏低;稳定条件下大气扩散计算结果不合理;模型未考虑非扩散因素影响(干湿沉积、化学转化);非正常排放模型在小风、静风条件下计算结果偏大;熏烟模型计算的不可操作性等。本文针对这些问题提出相应的改进方法,并进行了实例计算。
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关 键 词: | 环境影响评价 大气扩散模型 模型改进 |
Limitation And Improvement Of The Regular Atmosphere Predictive Model In Chinese Environmental Impact Assessment |
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Abstract: | Some defects of the regular atmosphere predictive models in Chinese environmental impact assessment were put forward in this paper,such as the too low mixed layer height calculated by regular model;unreasonable results in the stable stratification;without taking non-diffusion aspects into account including dry sediment,wet sediment and chemical translation;relatively too high results calculated the non-normal dispersion models under little and calm wind;unusefulness of the smudging models and so on.As far as these defects were concerned,some new methods had been advanced to modify these defects,moreover,some practical examples were calculated in this paper. |
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Keywords: | Environmental Impact Assessment Atmosphere Diffusing Model Improvement Of Model |
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