| 开放源对环境空气质量影响的评估技术与实例 |
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| 引用本文： | 张利文,白志鹏,郭光焕,李志军,韩 旸.开放源对环境空气质量影响的评估技术与实例[J].环境科学研究,2006,19(3):18-23. |
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| 作者姓名： | 张利文 白志鹏 郭光焕 李志军 韩 旸 |
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| 作者单位： | 南开大学,环境科学与工程学院,国家环境保护城市空气颗粒物污染防治重点实验室,天津,300071 |
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| 基金项目： | 高比容电子铝箔的研究开发与应用项目
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教育部跨世纪优秀人才培养计划
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天津市应用基础研究项目 |
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| 摘 要： | 开放源排放的颗粒物已经成为城市环境大气颗粒物的主要来源之一,介绍了其对环境空气质量影响的评估技术,采用开放源的动力学经验公式测算S市粉煤灰场、原煤堆场、土堆、沙石料堆4类开放源不同粒径颗粒物的起动风速及扩散距离,并利用箱模型(A值)和源解析(化学质量平衡法,CMB)模型测算开放源的区域年均起尘量及其对环境空气中颗粒物的贡献值.结果表明:开放源排放的颗粒物易升腾而且影响面积很大;S市区开放源类排放的小于100 μm的颗粒物约22.2×104 t/a,小于10 μm的颗粒物约15.8×104 t/a;开放源对环境空气中TSP的贡献值约370 μg/m3,质量浓度分担率达60%,对PM10的贡献值约263 μg/m3,分担率达64%.
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| 关 键 词： | 开放源 大气颗粒物 起动风速 扩散距离 年均起尘量 |
| 文章编号： | 1001-6929（2006）03-0018-06 |
| 收稿时间： | 2005-08-04 |
| 修稿时间： | 2005-08-04 |
Evaluation Method of Effect of Open Sources to Urban Ambient Air Quality and a Case Study |
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| ZHANG Li-wen,BAI Zhi-peng,GUO Guang-huan,LI Zhi-jun and HAN Yang.Evaluation Method of Effect of Open Sources to Urban Ambient Air Quality and a Case Study[J].Research of Environmental Sciences,2006,19(3):18-23. |
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| Authors: | ZHANG Li-wen BAI Zhi-peng GUO Guang-huan LI Zhi-jun and HAN Yang |
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| Affiliation: | China State Environmental Protection Key Laboratory of Urban Ambient Air Particulate Matter Pollution Prevention and Control,College of Environmental Sciences and Engineering,Nankai University,Tianjin 300071,China |
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| Abstract: | The particulate matter ejected from open sources has played an important role in urban atmospheric particulate matter(PM) pollution.The evaluation method relaed to the effects of PM from open sources to the urban ambient air quality is introduced.The PM jump-start wind speed,the diffusing distance,the amount of dust ejecting of the surface layer including the soil piles,coal piles,coal ash piles and sand piles in "S" city were measured and calculated by dynamics experience formulas.The total ejection from the open sources was calculated by Box model(A value).The contribution of the open sources to atmospheric PM was estimated by chemical mass balance(CMB) model.The result shows that in "S" city about 0.222 million tons per fear of PM <100 μm and 0.158 million tons per year of PM <10 μm are ejected from the open sources;about 60%(370 μg/m3) of TSP and 64%(263 μg/m3) of PM10 derived from the open sources. |
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| Keywords: | open sources atmospheric particulate matter PM jump-start wind speed diffusing distance dust emission gross per year |
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