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基于多个站点的机载美元PM_{2.5} $和$ PM_{10} $,元素浓度的微量元素进行了分析。我发现在表面附近煤矿区呈现~ 3 - 4次的重金属(美元美元,Cd和Pb)美元美元相比其他网站(~ 50公里远离煤炭生产区域)。receptor-oriented源分配工具也应用,特别因素可以确定高加载的Cd元素,铅。因此,我的推导,这个因素可能归因于煤矿粉尘。因为锌、镉、铅都存在于煤层一些矿物质和煤矿可以发出,运输活动。因为一直没有类似的研究指出这个因素,我怀疑我的判断的合理性。更详细的描述描述如下:(1)这个因素只有在煤矿附近区域显示apperaent贡献(2)这个因素可以分析对美元产生及PM_{2.5} $和$ PM_{10} $样本,分别。如果我删除相应的站点的数据集,这个因素将会消失在源识别分析。一些“负面”的信息:(1)风向因素也实现。源变化没有很好地根据风场(正如所料,煤矿粉尘的高贡献应该发生在当风来自煤矿区)的方向(2)结合先验知识,为煤矿粉尘源配置文件(上层土壤风化过程)应该富含粗粒子,而美元美元比例高,$ Cd $, $ Pb在美元PM_ {2.5} $ / $ PM_{10}美元仍在煤矿现场成立。 The figures followed was the emission features of coal combustion and "coal mine dust"(inferred by myself). [![enter image description here][1]][1] [![enter image description here][2]][2] I am not well satisfied with my interpretation on the apportionment results. I will be grateful if some researchers shed some light on this issue. ### More information on the sampling sites PM samples are simultaneously collected in six sites within the studied area in daily basis. As a energy base area, there are 8 coal-fired power stations within this area. Site 1 was located near coal mine as the following figure. [![enter image description here][3]][3] ### More information on the source identification. --- One factor can be identified in all sites, with high mass loading of Na, Cr, As, Zn, Pb. These trace elements existing in coal can be volatilized in high temperature combustion processes and then coagulated into solid phase in atmosphere. The seasonal variability of this factor also show the trend of __highest contribution in winter__. It might indicate the increasing coal combustion for domestic heating which is common in north China. Thus, I inferred this factor was the emission from coal combustion (coal-fired power/heating plant and domestic uses of bulk coal). --- The other factor which was similar with the factor in the source profile. High mass loading of As, Cd, Pb was also founded. Meanwhile, this factor presented elevated contribution only at the site near surface coal mining zone. Therefore, I thought this factor should be the emission of coal mining activity. ### Information of the coal mining Responding to first answer, I investigated the coal mining activity in this area. Here is an figure of one of the coal strip mine and the coal is mined by mechanical cutting techniques. [![enter image description here][4]][4] [1]: https://i.stack.imgur.com/408Lq.png [2]: https://i.stack.imgur.com/MkzaM.png [3]: https://i.stack.imgur.com/Hmgzz.jpg [4]: https://i.stack.imgur.com/r9Z9q.jpg

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\ begingroup美元澄清的情节:“分数”的比例(PM2.5元素X) / (PM10中的元素X) ? \ endgroup美元
- - - - - -daniel.heydebreck
2018年1月23日14:50
\ begingroup美元的位置是什么? \ endgroup美元
- - - - - -f.thorpe ♦
2018年1月23日,在15分
1

\ begingroup美元 @daniel。诺伊曼,某些种类的分数意味着该物种的相对装载在这个因素。 \ endgroup美元
- - - - - -汉Zhengzu
2018年1月24日,在节
\ begingroup美元 @farrenthorpe,抽样活动是在中国进行的(42位置n, 119 e)。我添加了一个图来描述煤矿附近的站点的位置 \ endgroup美元
- - - - - -汉Zhengzu
2018年1月24日,在第2章36节
2

\ begingroup美元我认为你也可以考虑再悬浮的影响,取决于我的年龄。他们可能在周边地区定居金属得到resuspended由于农业活动,车辆在道路上,或高风事件。 \ endgroup美元
- - - - - -f.thorpe ♦
2018年1月24日,在6:04

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