查詢結果分析
相關文獻
- 人工降雨對四種微粒在植物葉表淋洗效率之比較
- 常見臺北地區植物乾濕葉片與枝條滯塵效率的比較研究
- Theoretical Predictions and Experimental Measurements of Particle Deposition on an Isothermal Vertical Cylinder
- Evaluation of the Particles, Total PAHs during Day and Night Period in the Traffic Area of Taichung, Taiwan
- 懸浮微粒污染源與氣象因子相關性之研究
- 水平平板流中氣膠微粒沉積受熱泳和電泳效應影響之研究
- Pore Structure Modification of Porous Support by PPCVD: A Technique to Reduce Permeability Loss
- 臺灣麥療地區大氣中懸浮微粒之受體模式建立
- 臺北都會區大氣氣膠所含正烷類之特性
- 維生素A 中毒及肝微粒體酵素系統於維生素A 代謝上所扮演之角色
頁籤選單縮合
題 名 | 人工降雨對四種微粒在植物葉表淋洗效率之比較=Rinsing Efficiencies of Four Particles on Plant Leaves by Man-Made Rain Droplets |
---|---|
作 者 | 蔡志明; 王亞男; 孫岩章; | 書刊名 | 環境保護 |
卷 期 | 27:2 2004.12[民93.12] |
頁 次 | 頁232-241 |
分類號 | 445.63 |
關鍵詞 | 微粒; 模擬降雨; 沉降率; 滯塵能力; Particle; Simulated rain; Deposition rate; Dustcatching efficiency; |
語 文 | 中文(Chinese) |
中文摘要 | 以四種空氣污染微粒,包括塵土、水泥、燃煤飛灰及燃油飛灰,在均勻分佈設計下,分別沈降在七種植物,包括正榕(Ficus microacarpa L.)、艷紫荊(Liquidambar formosana Hancc)、樟樹(Cinnamomum camphora(L.) Sicb.)、白千層(Mclalcuca lcucadendron L.)、杜鵑(Rhodocendron spp.)、鵝掌藤(Scheffera arboricla Hayata)及月橘(Murraya paniculata (L.) Jack)等之葉表,經顯微鏡觀測洗前顆粒數,再移入人工降雨系統進行淋洗。研究發現當葉片以15°傾斜角經降雨1mm淋洗後,塵土微粒殘留率以白千層40.8%為最高,艷紫荊9.3%最低;水泥微糖以白千層、樟樹、月橘、正榕及杜鵑最高,其範圍為32.5%~42.0%;燃煤飛灰微粒之殘留率普遍高於塵土及水泥微糖者,且以白千層、正榕、月橘、杜鵑耽樟樹最高,其範圍為60.0%~69.5%;燃油飛灰微粒之殘留率更比燃煤者為高,且以杜鵑92.2%最高,原因應該是燃油飛灰微糖含有油性性質所致。這些結果顯示葉表的滯塵及淋洗能力會因微粒種類及植物種類之不同而有差異,即不同微粒在不同葉表的殘留率並非相同,模擬降雨1mm之雨量普遍不易淋洗葉表上之污染微粒。 |
英文摘要 | The leaves of seven tree species, including Ficus microcarpa L., Liquidambar formosana Hance, Cinnamomum camphora (L.) Sieb., Melatleuca leucadendron L., Rhododendron spp., Scheffera arboricola Hayata and Murraya paniculata (L.) Jack., were uniformly deposited with four kinds of particles, including soil dust, cement dust, coal-fired fly ash, and oil-fried fly ash. They were then rinsed with 1 mm artificial rain at 15° inclination angle. The rinsing efficiencies were determined after the rinsing and compared with each other. Studies found that melaleuca leucadendron had the highest rinsing residual rate of 40.8% against the soil dust particles. While Liquidambar formosana had the lowest rate of 9.3%. For cement, Melaleuca leucadendron, Cinnamomum caphora, Murraya paniculata, and Ficus microcarpa had the higher rinsing residual rates, ranging from 32.5% to 42%. Generally the rinsing residual rates of coalfired fly ash were higher than those of soil dust and cement dust. The residual rates of coal-fired fly ash on Melaleucal leucadendron, Ficus imcrocarpa, Murraya paniculata, Rhododendron sp., and Cinnamomum camphora were higher, ranging from 60.0% to 69.5%. The rinsing residual rates for oil-fired fly ash were, however, the highest, among these four kinds of particles. The azalea (Rhododendron spp.) had the highest rate of 92.2%. This can be explained by the oily characteristics of the oil-fired particles and that 1 mm of precipitation was not enough to remove most kinds of particles on plant leaves. |
本系統中英文摘要資訊取自各篇刊載內容。