Vertical Concentration Distribution of Fugitive Dust Emilled from Construction Site Aaaociated with Application Management Policies
| Autor: | 劉恕昭 |
|---|---|
| Rok vydání: | 2001 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 89 Experiments in this research was carried out by the SOP of NIEA A102.10A high-volume air sampling method,to measure the different vertical concentration distribution .The following equation would be developed by linear regression of the experiment’s data. C= the vertical concentration in y meters from the ground(μg/m3) C0= the vertical concentration in 1 meter from the ground(μg/m3) y=the highness of the vertical concentration that is detected(meter) From the experimental results, the study shows：「the vertical concentration of total suspensive particle will increase with the high from ground level,and the vertical concentration distribution will keep almost same profile.」 In the sampling result ，the study would get the relation between the vertical concentration distribution and the average wind velocity by the following equation that was detected with the experiment’s data： =103.5 exp(0.143U) = the average concentration (μg/m3) U= the average wind velocity (meter/second) 1. As the result pollution trimming facility would affect the control efficiency, if no thinking upon the influencing factors of the vertical concentration (being aimed at the highness and the average wind). 2. The source of fugitive particulate matter should be controlled in the low high with assembling different pollution trimming facilities. 3. The control efficiency of pollution trimming facility would be out of 80% with it’s high hereinafter 3 meters.so the pollution trimming facility’s highness should not be too tall . |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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