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頁籤選單縮合
題名 | 興達地區空氣中懸浮微粒排放源鑑別研究=A Study of the Characteristics of PM10 Suspended Particulates in the Air in the Vicinity of the Hsinta Thermal Power Plant |
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作者 | 黃宗正; 李正綱; 曾錦富; 張金寶; 仲偉濤; 張詔斌; 羅燦勳; | 書刊名 | 台電工程月刊 |
卷期 | 586 1997.06[民86.06] |
頁次 | 頁88-95 |
分類號 | 445.63、445.63 |
關鍵詞 | 興達燃煤火力發電廠; 煙道粒狀排放物; 懸浮微粒; 二次衍生物; 電子顯微鏡; 飛灰; Hsinta coal-fired thermal power plant; Stack dust; Suspended particulate; Secondary particles; Scanning electron microscope; Fly ash; |
語文 | 中文(Chinese) |
中文摘要 | 為了解興達燃煤火力發電廠煙道粒狀排放物對附近地區空氣品質的影響,在距離 興達發電廠週遭 1 ~ 10 公里,臺電公司現有之空氣品質監測站中選擇永安、一甲、文賢三 站,進行粒徑小於等於 10 微米之懸浮微料 (PM10) 的取樣分析,並對該地區懸浮微粒排放 源加以探討。結果顯示,當地 PM10 日平均值有夏低冬高的趨勢,各站在夏季均能符合 125 μ g/m �臚妊W定值,冬季東北季風期間偶有超過空氣品質標準的測值出現, 尤以文賢站出 現之機會較多。由污染源之特性元素來推估,主要排收源有塵土、海鹽、二次衍生物、及車 輛排放物等四種, 總和約佔 PM10 之 90%。 選擇三站位於電廠下風時之樣品以電子顯微鏡 (SEM) 分析, 由粒子形態與成份進行所含飛灰之測定,飛灰約估 PM10 中之 0.02 ~ 0.06% 。但一甲測站因鄰近大型水泥廠,無法以風向將興達發電廠之影響與水泥廠區隔,而得到三 站中最大測值 0.6%。 由本研究發現興達火力發電廠煙囟排放之固體微粒對附近地區懸微粒 污染之貢獻極為有限。 |
英文摘要 | In order to assess the impact of stack dust from the Hsinta coal-fired thermal power plant on air quality in the surrounding area, suspended particulate matter of less than 10 microns in diameter (PM10) was sampled and analyzed at three existing air quality monitoring stations of the Taiwan Power Company (the Yungan, Yichia, and Wenhsien Stations) located from one to ten kilometers from the Hsinta power plant. The results of this sampling and analysis work was then used to investigate the sources ofsuspended particulate matter in the vicinity. The results of this study reveal that the daily average of PM10 is generally highest in winter and lowest in Summer. While all stations were uniformly able to meet the 125fg/m �� standard in Summer, measured values occasionally exceeded this air quality standard in winter when the northeast seasonal winds were blowing. HIgh amounts of particulate matter were most common at the Wenhsien station. It was determined by inference from the elemental composition of pollution sources that soil dust, sea salt, secondary prticles. and auto exhaust collectively made up approximately 90% of PM10. Specimens collected when monitoring stations were downwind of the power plant were analyzed with a scanning electron microscope (SEM). The presence of fly ash was assessed by means of the composition and shape of particles; it was found that fly ash made up approximately 0.02-0.6% of PM10. However, due to the large cement plant in the vicinity of the Yichia monitoring station, it was impossible to use wind direction to distinguish between the effects of the power plant and the cement plant. As a result, it was determined that the maximum amount of fly ash measured at any of the three stations was 0.6%. Thus it could be cmcluded that the contribution of solid stack particles discharged from the Hsinta thermal power plant to particulate pollution in the neighboring area was extremely limited. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。