Characteristics of concentrations and water-soluble ionic species for Particles collected at construction site in Hualien

• Main Authors: JHUO,JHIH-CHENG, 卓志成
• Other Authors: 許文昌
• Format: Others
• Language: zh-TW
• Published: 2016
• Online Access: http://ndltd.ncl.edu.tw/handle/zes68g

碩士 === 大漢技術學院 === 土木工程與環境資源管理研究所 === 105 === This search aims at the Year 103-104's to construct the engineering TSP inside the job site, PM10 and PM2.5 mass concentration conduct an investigation inside Hualien County and aims at to construct job site Shi Zuo's notable and not- notable the undertake corpuscle characteristic survey in the Year 103's and aims at to construct the job site Yi kd granularity res to keep system efficiency from starting experiment in the Year 104's, the Zong whole study construction job site generates for the corpuscle characteristic, gain the conclusion as follows: Construct the 24 hours in the job site's TSP mass concentration average value as 87±30 µg/m3, the PM10 mass concentration average value is 45±22 µg/m3, PM2.5 mass concentration average value for 13±6 µg/m3. Among them PM>10 mass concentration average value for 42±12 µg/m3, the PM2.5-10 mass concentration average value is 32±21 µg/m3, display to construct the corpuscle that the job site generates still higher with particle size ratio that more than 10 µm (PM>10) has, secondly Be lain to PM2.5-10 corpuscleses of 2.5-10 µ ms for particle size.At different particle size range the ratio control result had by corpuscle, the PM10/TSP average value is 0.50±0.09;The PM2.5/TSP average value is 0.16±0.0, the PM2.5/PM10 average values are 0.31±0.13. Shi Zuo from construction site works in Hualien County in the Year 103's 24 hours PM10 mass concentration average value of the not- notable for 46 µg/m3, construction site works Shi Zuo PM10 mass concentration average value of the notable in 24 hours for 90 µg/m3, the notable and not- notable PM10 corpuscle species concentration differs to be worth the average value to differ to be worth to 44 µg/m3.The Shi Zuo from construction site works in Hualien County 24 hours PM2.5 mass concentration average value of the not- notable is 15.8 µg/m3 in the Year 103's , construction site works Shi Zuo PM2.5 mass concentration average value of the notable in 24 hours for 19.9 µg/m3. Notable differ with not- notable PM2.5 corpuscle species concentration to be worth the average value as 4.1 µg/m3. Hualien County constructs site works to make generate of overflow the PM2.5 in the contaminant of kd granularity to have the ratio(4.1 µg/m3 in addition to with 44 µg/m3) only for 9.3%, display to construct the job site contributes of suspend the corpuscle to regard the PM2.5-10 particle size range as principle more.By analyse inside the result job site engineering Shi Zuo PM2.5 corpuscle species concentration of the notable and not- notable's differing number still can reach to 11 µg/m3 at the maximum, display to still need the in re construction site works to make generate of overflow the kd granularity contaminant undertake related PM2.5 control operations. Aim at to construct the job site work zone garage the path with sprinkle water with build the gradation method inquire into it defending system efficiency, by experiment result display, well sprinkle water by every 2 hours an in re garage path inside the work zone generate of undercut rate of the Yi kd granularity contaminant, the PM2.5 is about 6%, PM10 are about 21%.With build the gradation in re garage path inside the work zone generate of undercut rate of the Yi kd granularity contaminant, the PM2.5 is about 5~36%, PM10 are about 27~40%.There is the condition occurrence to almost don't defend system result in the experiment, too, study causes the instruction as follows:(1).The corpuscle samples time as 24 hours, a short time happens to nighttime time sometimes to rain the condition and make have never assumed to defend creation for of the sampling have no Yi generating of the kd granularity contaminant and affect the experiment undertake and make the undercut lead almost for null.(2)have never assumed to defend the creation from 104 years and 5 experiment sessions for of sampling result suggest, the discrepancy of the corpuscle mass concentration is also rather big, display that the contamination activety variance of job site may cause the fluctuation that the undercut leads.