查詢結果分析
來源資料
相關文獻
- Dry Deposition of Heavy Metal, Sulfate and Nitrate in Taiwan
- The Study of Metal's Deposition Velocities in Ambient Air
- 過氧化氫在UV光照射下之裂解行為研究:氯離子及硝酸根離子之影響效應
- Dry Deposition and Particle Size Distribution of PAHs in Both Petrochemical-industry and Urban Areas
- Genotypic Variations of Maize Seedlings in Utilizing Ammonium Nutrition
- 福山試驗林硫酸根與無機氮沉降之探討
- 鎘污染土施用家畜糞肥對植物生長及金屬元素吸收之效應
- Behavior of Dissolved and Particulate Trace Metals in an Oxygen- Deficient (Chishui) River and Estuary
- 中式香腸添加硝酸鹽之適切性研究 (第1 報):硝酸鹽在醃漬期間亞硝酸根殘留量、發色率和硝酸根轉變成亞硝酸根生成量之變化
- 中式香腸添加硝酸鹽之適切性研究 (第2 報):不同溫度下儲藏之亞硝酸根殘留量、發色率及從硝酸根生成亞硝酸根含量之變化
頁籤選單縮合
題 名 | Dry Deposition of Heavy Metal, Sulfate and Nitrate in Taiwan=臺灣地區大氣中金屬,硫酸根及硝酸根乾沉降特性之探討 |
---|---|
作 者 | 方國權; 張鎮南; 張冠甫; 楊定國; | 書刊名 | 弘光學報 |
卷 期 | 30 1997.10[民86.10] |
頁 次 | 頁49-61 |
分類號 | 445.63 |
關鍵詞 | 乾沉降; 金屬元素; 硫酼根; 硝酸根; Dry deposition; Metal elements; Sulfate; Nitrate; |
語 文 | 英文(English) |
中文摘要 | 空氣污染物在臺灣是一個嚴重的環境污染問題。本研究將這幾年來臺灣所作的結果與其它國家地區作比較。結果指出,臺灣地區中臺中,臺南及屏東之平均乾沉降通量分別為2.40、4.98及2.47 ug/m��/sec,此結果大約和Chicago市相同且大約是北海地區的三倍。而這三個地區的乾沉降通量對風速的回歸值(R�插^分別為0.47、0.90、0.69,顯示風速越大,乾沉降流量便越大。臺灣地區金屬元素(Ca、比、Zn、ed)的懸浮微粒濃度比Chicago, Olympic及Ventura皆高出許多。報告中並指出臺灣地區存在著更嚴重的重金屬污染問題。臺灣地區的硝酸根,硫酸根及重金屬大多附著於小於2.5um的微粒上。 |
英文摘要 | Atmospheric pollutants are very serious environental problem in Taiwan. In this study we compared them with those of the other areas data obtained in world. The mean dry deposition mass flux in Taiwan were 2.40, 4.98 and 2.47 ug/m��/sec for Taichung, Tainan and Ping Tung, respectively. And the correlation coefficient (R��) of mean dry deposition mass flux vs. wind speed were 0.47, 0.90 and 0.69 for Taichung, Tainan and Ping Tung, separately. Dry deposition mass flux in Taiwan compared to the the other studies were the same as Chicago and about 3 times higher than that of North Sea. The results indicated that suspended particle concentration of metal elements (Ca, Fe, Zn, Cu and Cd) in Taiwan were all much higher than that in Chicago, Olympic and Ventura. It pointed out that there are more heavy metal elements problems existed in Taiwan. Sulfate, nitrate and heavy metals in Taiwan were most associated with fine particles (<2.5 um). |
本系統中英文摘要資訊取自各篇刊載內容。