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題名 | 屏東工業區空氣中懸浮微粒粒徑分佈之研究=Characteristics of Particle Size Distribution in the Ambient Air of Ping-Tung Industrial Park |
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作者 | 仲崇毅; 李崇垓; 廖少威; 鍾佩伶; Chung, C. Y.; Lee, C. G.; Liao, S. W.; Chung, P. L.; |
期刊 | 大仁學報 |
出版日期 | 19990500 |
卷期 | 17 1999.05[民88.05] |
頁次 | 頁145-158 |
分類號 | 445.63 |
語文 | chi |
關鍵詞 | 懸浮微粒; 粒徑分佈; Suspended particulate matter; Particle size distribution; |
中文摘要 | 屏東工業區人為活動及車輛出入頻繁,易造成空氣品質不良,工作人員多半時間都駐留此地,極容易吸入細小微粒而遭受傷害,因此本研究乃針對屏東工業區空氣中懸浮微粒粒徑分佈深入深討。本計畫自民國87年1月至5月於屏東工業區內住進行採樣。採樣頻率為每月一次。採樣分為日間採樣及夜間採樣,日間採樣時間為上午七點至下午七點,夜間採樣時間為下午七點至隔日上午七點。主要利用微孔均勻沈積衝擊器(MOUDI)採集空氣中之懸浮微粒,MOUDI共分為八階,可收集粒徑從0.18 um ∼18um等不同大小之微粒。將收集微粒之濾紙秤重分析,以瞭解各階層所收集之微粒濃度。本計畫結果顯示,屏東工業區內空氣中懸浮微粒濃度有冬季較春季為高之趨勢,且區域內污染源之排放及氣象條件均對懸浮微粒濃度有影響。此外,結果亦顯示,夜間懸浮微粒濃度有較日間濃度為高之趨勢,可能受到夜間大氣擴散較不易所造成之影響。而就懸浮微粒粒徑分佈而言,日間懸浮微粒中粗微粒所佔比例通常較高,此現象可能與工業區日間人為活動較多,且載運貨物之車輛進出頻繁,造成地面揚塵,以致量測數據多偏於粗顆粒部分。 |
英文摘要 | In order to understand the profile of the particulate matter in the ambient air of Ping-Tung Industrial Park, this study was conducted to acquire a database about the particle size distribution. Ten samples were taten from January till May of 1998 at one location in the industrial park. Five of them are the daytime samples. The other five are nighttime samples. The durstions are 07:00-19:00 and 19:00-07:00 o the next day for daytime and nighttime respectively. A MOUDI sampler with eight cascade impactor stages was used to collect the suspended particulate matter in the ambient air. The diameter of the particles ranges from 0.18 um to 18 um. The results show that the concentrations of the particulate matter are higher during the winter than during the spring. This is caused mainly by the meteorological conditions. Since the particulate matter is difficult to be dispersed through the atmosphere during the nighttime, the concentrations seem to be higher during might than during the day. According to the statistical results of the particle size distribution, the daytime samples were dominated by the coarse particle fraction. It is obviously due to the motorvehicle-generated dust during the working hours. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。