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研究生:楊素怡
研究生(外文):Shu-I Yang
論文名稱:嘉義縣東石港與布袋港牡蠣體內有機錫研究
論文名稱(外文):Organotin Compounds of Oyster in the Dongshin and Budai Fishing Harbor, Chiayi County, Taiwan
指導教授:方天熹方天熹引用關係
指導教授(外文):Tien-Hsi Fang
學位類別:碩士
校院名稱:國立臺灣海洋大學
系所名稱:海洋環境資訊學系
學門:工程學門
學類:環境工程學類
論文種類:學術論文
論文出版年:2008
畢業學年度:96
語文別:中文
論文頁數:72
中文關鍵詞:有機錫丁基錫丁基錫降解指數
外文關鍵詞:Organotinbutyltin degradation indexoyster
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本研究依四季採取嘉義縣東石及布袋港養殖區牡蠣,分析牡蠣體內丁基錫物種濃度,以瞭解此海域牡蠣之有機錫濃度與季節性變化,此外,也分析此海域水中溶解態與懸浮態之有機錫濃度。結果顯示布袋港牡蠣丁基錫濃度較東石港高,而兩港牡蠣丁基錫濃度以冬季較高而秋季最低,其冬、秋兩季濃度分別為: 布袋港,145.89-215.85 ng/g 與 65.84-123.03 ng/g;東石港,40.80-174.43 ng/g 與 26.41-45.40 ng/g。此外,布袋港四季與東石港春、夏、冬季各測站所測得牡蠣之丁基錫之降解指數值皆小1,顯示其牡蠣之有機錫濃度,以三丁機錫 (TBT)物種為主,而而東石港在秋季時其值大於1,顯示牡蠣之有機錫濃度以單丁機錫(MBT)、二丁機錫(DBT) 物種為主,另外,兩港牡蠣丁基錫濃度春、夏兩季濃度分別為: 布袋港,126.64-186.64 ng/g 與 63.04-157.21 ng/g;東石港,68.37-118.24 ng/g 與 68.61-118.06 ng/g。經計算丁機錫風險評估,所求得之有機錫含量最大值(tolerable average residue levels, TARL) 為381.82 ng/g,本研究中東石港及布袋港丁機錫含量皆未達此值,食用上應不致於對人體健康造成影響。
而此兩港海水中溶解態與懸浮態之MBT濃度皆高於TBT濃度,布袋港海域中溶解態與懸浮態之MBT及TBT濃度分別為: MBT,7.19-32.59 ng/L(溶解態) 與 110.34-191.91 ng/g(懸浮態); TBT,5.56-7.04 ng/L (溶解態)與68.91-99.19 ng/g(懸浮態)。而東石港之MBT及TBT濃度分別為: MBT,6.29-24.43 ng/L(溶解態)與44.91-187.11 ng/g(懸浮態);TBT,4.88-6.62 ng/L(溶解態)與18.86-85.80 ng/ g(懸浮態)。此外,海水及海水中懸浮顆粒BDI值皆大於1,說明其主要組成物種為穩定之MBT為主。
In order to understand the organotin contents of the oyster and evaluate the food hazard for consumers, the present study determined the organotin contents of oysters collected from the Dongshin and Budai harbors in Chiayi county by means of four seasons sampling. In addition, the organotin concentration in seawater was also determined. The results indicate that the organotin concentration of oyster collected from the Budai harbor was generally higher than that of the Dongshin harbor. The organotin concentrations of oysters collected in the both harbors were higher in the winter season and lower in the autumn season.
The organotin concentrations of oysters in the both harbors observed in the winter and autumn seasons were as follow: the Budai harbor, 145.89-215.85 ng/g and 65.84-123.03 ng/g; and the Dongshin harbor, 40.80-174.43 ng/g and 26.41-45.40 ng/g . With the exception of autumn season in the Dongshin harbor, the value of the butyltin degradation index (BDI) found all surveys was smaller than 1, suggesting that tributyltin(TBT) is the dominant species of the organotin compounds of the oysters. In contrast, the value of BDI found in the autumn season in the Dongshin harbor is generally greater than 1, indicating that monobutyltin(MBT) and dibutyltin (DBT) are the dominant species of the organotin compounds of the oysters
The organotin concentrations of oysters at the both harbors found in spring and summer seasons were: the Budai harbor, 126.64-186.64 ng/g and 63.04-157.21 ng/g; and the Dongshin harbor, 68.37-118.24 ng/g and 68.61-118.06 ng/g. The minimum concentration of organotin in bivalves hazardous to human health is approximate 380 ng/g. The organotin concentration found in all samples of the present study was generally lower than the regulation value.
The concentration of monobutyltin in dissolved and Particulate phases at the both studied harbors was higher than tributyltin. The both concentrations in the dissolved and particulate phases of the Budai harbor were: MBT, 7.19-32.59 ng/L (dissolved) and 110.34-191.91 ng/g (particulate); and TBT, 5.56-7.04 ng/L (dissolved) and 68.91-99.19 ng/g (particulate). Both values found in the Dongshin harbor were: MBT, 6.29-24.43 ng/L (dissolved) and 44.91-187.11 ng/g (particulate); and TBT, 4.88-6.62 ng/L (dissolved) and 18.86-85.80 ng/g (particulate). In addition, the value of BDI found in the dissolved and particulate phases of seawater was generally greater than 1, indicating that monobutyltin(MBT) and dibutyltin (DBT) are the dominant species of the organotin compounds of seawater
摘要
Abstract
謝辭
目 錄 I
圖 目 錄 IV
表 目 錄 V
第一章 緒論 1
1.1 前言 1
1.2 有機錫化合物之特性與用途 2
1.3 有機錫污染來源及環境宿命 4
1.4 有機錫化合物對生物之影響 6
1.5 世界各國有機錫之管制 8
1.6 研究動機 9
第二章 研究區域 15
第三章 材料與方法 18
3.1 採樣與分析 18
3.1.1 生物體分析 18
3.1.2 樣水及懸浮顆粒分析 19
3.2 實驗藥品及設備 20
3.2.1 實驗藥品 20
3.2.2 實驗設備 22
3.3 品保品管 23
3.3.1 乙基化有機錫化合物之GC-FPD分析之圖譜儀 23
3.3.2 有機錫標準參考樣品分析結果 23
3.3.3 準確度測定 24
3.3.4 精準度測定 24
3.3.5 基質添加回收率測定 24
3.3.6 方法偵測極限測定 25
第四章 結果 27
4.1 牡蠣體內物種濃度含量分析 27
4.2.1 布袋港 27
4.2.2 東石港 29
4.2 樣水及懸浮微粒物種濃度含量分析 30
4.3 丁基錫降解情形分析 31
4.4 風險評估推估方法 32
第五章 討論 45
5.1 牡蠣體內、海水及懸浮顆粒丁基錫濃度含量分析 45
5.2 丁機錫降解情形 48
第六章 結論 52
參考文獻 54
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