特殊的排放的影响(可能是煤炭开采活动)颗粒物质-地球科学堆栈上交换江南电子竞技平台江南体育网页版 最近30从www.hoelymoley.com 2023 - 04 - 12 - t12:05:31z //www.hoelymoley.com/feeds/question/13162 https://creativecommons.org/licenses/by-sa/4.0/rdf //www.hoelymoley.com/q/13162 3 特殊的排放的影响(可能是煤炭开采活动)在颗粒物质 汉Zhengzu //www.hoelymoley.com/users/5214 2018 - 01 - 23 t14:36:43z 2018 - 01 - 24 t03:13:09z < p >基于美元的多个站点抽样机载PM_{2.5} $和$ PM_{10} $,元素浓度的微量元素进行了分析。< / p > < p >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)。< / p > < p > receptor-oriented源解析工具也应用,特别因素可以确定高加载的Cd元素,铅。因此,< / p > < p >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。< / p > < p >以来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。< / p > < p >更详细描述描述如下:< / p > < p >(1)这个因素只有在煤矿附近区域显示apperaent贡献< / p > < p >(2)这个因素可以分析对美元产生及PM_{2.5} $和$ PM_{10} $样本,分别。如果我删除相应的站点的数据集,这个因素将会消失在源识别分析。< / p > < p >一些“负面”信息:< / p > < p >(1)风向因素也实现。源变化没有很好地根据风场(正如所料,煤矿粉尘的高贡献应该发生在当风来自煤炭矿区的方向)< / p > < p >(2)结合先验知识,为煤矿粉尘源配置文件(上层土壤风化过程)应该富含粗粒子,而美元美元比例高,$ Cd $, $ Pb在美元PM_ {2.5} $ / $ PM_{10}美元仍在煤矿现场成立。< / p > < p >数据是煤炭燃烧的排放特征和“煤矿尘”(自己的)。< / p > < p > < a href = " https://i.stack.imgur.com/408Lq.png " rel = " nofollow noreferrer " > < img src = " https://i.stack.imgur.com/408Lq.png " alt = "在这里输入图像描述" > < / > < / p > < p > < a href = " https://i.stack.imgur.com/MkzaM.png " rel = " nofollow noreferrer " > < img src = " https://i.stack.imgur.com/MkzaM.png " alt = "在这里输入图像描述" > < / > < / p > < p >我不是很满意我的解释上的分配结果。 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

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

 //www.hoelymoley.com/questions/13162/-/13163 # 13163 3 弗雷德回答的特别排放的影响(可能是煤炭开采活动)在颗粒物质 弗雷德 //www.hoelymoley.com/users/2470 2018 - 01 - 23 t15:00:31z 2018 - 01 - 23 t15:00:31z < p >首先要考虑的是,如果不是相邻煤矿,其他附近的来源可能会产生这样的结果。有燃煤发电站或附近的一个工厂。如果没有其他可能来源的煤矿仍然是最有可能的候选人作为源的粉尘和金属污染物。< / p > < p >另一个需要考虑的是如何在露天煤矿在开采以及产生的粉尘是煤矿。< / p > < p >开采煤炭的最有可能的方法需要使用炸药爆破。这可以创建大的尘云高和宽。如果没有风当爆炸发生的灰尘可能到达你的传感器。< / p > < p >如果煤炭开采机械切削技术仍将产生尘埃,而不是与爆破产生相同的数量。< / p > < p >生成其他方式尘埃是车辆乘坐拆开道路车辆的轮胎生产道路上的灰尘。< / p > < p >尘埃也可以被从卡车装载煤或传送带输送煤炭垃圾场。装载卡车也会产生灰尘,将煤的倾销。< / p > < p >从经验,控制粉尘的唯一方法就是不断用水喷雾。你知道如果我使用的除尘措施吗?< / p > < p >众所周知,煤炭包含所有类型的污染物,包括镉和汞等金属。 Different deposits have different types and degrees of contaminants.

From what you have presented, the coal mine is the most likely source of the dust and metal contamination.
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