臺中港魚市魚貨重金屬含量之調查

Investigation on the Heavy Metal Contents of Fishes from Fish Market of Taichung Port

曾政鴻(Jen-Horng Tsen)

《中華民國營養學會雜誌》 21卷2期 (1996/05) Pp. 177-188

https://doi.org/10.6691/JCNS.199605_21(2).0006

摘要

海鮮食品污染重金屬的問題，在高度工業化的社會中日益受到重視。本研究的目的，即在調查區域性販售魚貨的重金屬含量，是否在食品安全的標準限量之內、蒐集十五種臺中港魚市販售之海鮮樣品，以原子吸收光譜法(atomic absorption spectrophotometry)，分別測定各個樣品之銅、鎘、鉛、砷、汞含量。銅、鎘、鉛三種元素是以火焰燃燒原子化法(flame atomization)分析；砷、汞二元素則採用氫化物生成法(hydride formation system; HFS)測定之。各元素含量的分佈範圍如下：銅：0~30 ppm，鎘：0.02~0.25 ppm，鉛：0.02~0.29 ppm，砷：0.40~l.61 ppm，汞：0.003~0.35 ppm。經與國內外相關衛生安全法規限量標準比較後發現，所有樣品之重金屬濃度均在衛生標準限量之內，並無含量過高之情形。是故作為食用應無衛生安全上之顧慮。

關鍵字

魚市 ； 魚類 ； 重金屬 ； 生物濃縮性 ； 原子吸收光譜法 ； 氫化物生成法

並列摘要

The issue concerning the heavy metal contamination of seafoods has increasingly become important in industrialized countries. The objective of this research was to investigate the heavy metal contents of fishes from Taichung port fish market. Fifteen fish species were collected and their copper (Cu), cadmium (Cd), lead (Pb), arsenic (As) and mercury (Hg) concentration were analyzed by atomic absorption spectrophotometry. Cu, Cd, Pb were determined via flame atomization and hydride formation system (HFS) was used in As, Hg assays. The determined range of heavy metals were Cu 0~30ppm, Cd 0.02~0.25ppm, Pb 0.02~0.29ppm, As 0.40~1.61ppm and 0.003~0.35ppm for Hg. Results showed that heavy metal contents of all fish samples were under the limits of related hygienic regulations and the fishes should be safe for human consumption as food sources.

並列關鍵字

fish market ； fishes ； heavy metal ； biological concentration ； atomic absorption spectrophotometry ； hydride formation system