1 / 10

農藥在環境中的命運

農藥在環境中的命運. Photochemical degradation. Gaseous loss. Pesticide. Chemical degradation. Plant uptake. Adsorption/Desorption. Leaching. Microbial degradation. 農藥在環境中的命運. 農藥在環境中的命運. 了解農藥在環境的命運有何用途 ? 農業上 農藥推薦之參考—施用作物,施用環境 農藥施用期限之參考—採收前禁施 環保上 農藥田間殘留偵測方法建立 農藥污染可能性參考 環境影響評估之參考. 農藥在環境中的命運.

yachi
Download Presentation

農藥在環境中的命運

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. 農藥在環境中的命運

  2. Photochemical degradation Gaseous loss Pesticide Chemical degradation Plant uptake Adsorption/Desorption Leaching Microbial degradation 農藥在環境中的命運

  3. 農藥在環境中的命運 • 了解農藥在環境的命運有何用途? • 農業上 • 農藥推薦之參考—施用作物,施用環境 • 農藥施用期限之參考—採收前禁施 • 環保上 • 農藥田間殘留偵測方法建立 • 農藥污染可能性參考 • 環境影響評估之參考

  4. 農藥在環境中的命運 • 研究方法 • 選定農藥 • 台灣使用頻繁的農藥 • 廠商新引進的農藥 • 國外使用曾發現問題的農藥 • 測定 • 農藥在土壤及水中的半生期 • 評估農藥環境殘留期 • 農藥在土壤中的移動 • 評估農藥污染地下水可能性

  5. Ecotoxicology and Environmental Safety. 1997. 38: 260-265. 農藥在環境中的命運 研究成果 加保扶(carbofuran) FIG.1. Distribution of carbofuran in soil column by leaching the surface-applied carbofuran (13 mg) with CaSO4 solution (0.005M) for 34 (—◇—, Luchu clay) and 48 days (—□—, Yuanlin silty clay loam).

  6. Environmental Contamination and Toxicology. 1997. 58: 758-763. 農藥在環境中的命運 研究成果 丁基拉草 (butachlor) 甲氧基護谷 (Chlomethoxyfen) Fig. 1. displays the relationship between Kd and organic matter content of the soils. The slopes in Fig are equivalent to the experimental Kom value by the following equation: Kd = Kom / 100 × % organic matter

  7. Analytical Science(supplement). 1997. 13: 137-140. 農藥在環境中的命運 研究成果 陶斯松 (chlorpyrifos) Fig.1. Recovery of Chlorpyrifos from soil by extraction with carbon dioxide under supercritical fluid state at different pressures and temperatures.

  8. Ecotoxicology and Environmental Safety. 2000. 45: 79-86. 農藥在環境中的命運 研究成果 歐殺松 (acephate) 達馬松 (methamidophos) FIG. 1. Dissipation of acephate (A) and methamidophos (B) at different temperatures and soil moisture contents in Pingchen silt clay loam. FIG. 2. Distribution of acephate () and methamidophos () in Annei (A) and Pingchen (B) soil column by leaching the surface-applied pesticide with CaSO4 solution (0.005 M) for 7 days.

  9. Ecotoxicology and Environmental Safety. 2001. 49: 164-170. 農藥在環境中的命運 研究成果 三苯醋錫 (triphenyltin acetate) FIG. 1. Distribution of triphenyltin acetate in soil column by leaching in the rate of 1.0 cm day-1 for 41 days. (—— Fangtzupo soil, —— Lanyang soil). 三苯烴錫 (triphenyltin hydroxide)

  10. 從事此研究可以學會? • 了解有機化學物在環境中的動態 • 可以學習良好的有機污染物分析技術 • 熟悉GC, HPLC等儀器基本原理及操作

More Related