| 澳门地区PM_(10)粒度分布的分形特征研究 |
| |
| 引用本文： | 沈蓉蓉,王志石,邓宇华,杨书申,邵龙义.澳门地区PM_(10)粒度分布的分形特征研究[J].中国环境监测,2009,25(6). |
| |
| 作者姓名： | 沈蓉蓉 王志石 邓宇华 杨书申 邵龙义 |
| |
| 作者单位： | 1. 中国矿业大学资源与地球科学系,北京,100083
2. 澳门大学科技学院,澳门 |
| |
| 基金项目： | 国家自然科学基金项目(40575065);;澳门科技发展基金项目(023/2006/A) |
| |
| 摘 要： | 采集澳门地区不同区域大气PM10样品,根据单颗粒图像分析方法分析了PM10的粒径分布,计算了各采样点PM10粒度分布的分形维数,分析讨论了PM10粒度分布分形维数的变化与粒度分布的关系,分析了粒度分布分形维数表征的澳门大气PM10不同采样点、不同季节的粒度整体分布及其影响因素之间的关系。结果表明,澳门地区PM10粒度分布的分形维数在2.05~3.95之间,夏季PM10的粒度分布分形维数(2.88)大于冬季(2.63),表明夏季PM10的粒度普遍较冬季的细。同一季节不同区域大气PM10的粒度也有较大变化,夏季时,澳门岛的总体颗粒物、矿物颗粒和烟尘颗粒物的分形维数较氹仔岛的偏大,即澳门岛的颗粒物比氹仔岛偏细,而冬季则相反,冬季时,澳门岛的总体颗粒物、矿物颗粒和烟尘颗粒物的分形维数较氹仔岛的偏小。
|
| 关 键 词： | 可吸入颗粒物 粒度分布 分形维数 澳门 |
The study on Fractal Dimensions of Size Distribution of Airborne Inhalable Particulates (PM_(10)) in Macao |
| |
| SHEN Rong-rong,et al.The study on Fractal Dimensions of Size Distribution of Airborne Inhalable Particulates (PM_(10)) in Macao[J].Environmental Monitoring in China,2009,25(6). |
| |
| Authors: | SHEN Rong-rong~ |
| |
| Affiliation: | 1.Department of Resources and Earth Sciences;China University of Mining & Technology;Beijing 100083;China |
| |
| Abstract: | PM_(10) samples were collected at different functional domains in Macao.Size distribution of PM_(10) were analyzed based on IA(Image Analysis) of single particle and the fractal dimensions of size distribution(FDSD) values of PM_(10) were calculated.The relationships between variations of FDSD and size distribution of PM_(10) were discussed and the variation of FDSD of PM_(10) at different sampling sites in different seasons and their influencing factors were further investigated.The results indicate that t... |
| |
| Keywords: | Inhalable particulate matter (PM_(10)) Size distribution Fractal dimension Macao |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《中国环境监测》浏览原始摘要信息 |
|
点击此处可从《中国环境监测》下载全文 |
|
