农业环境科学学报
農業環境科學學報
농업배경과학학보
Journal of Agro-Environment Science
2014年
12期
2450-2456
,共7页
谢文平%朱新平%郑光明%单奇%马丽莎
謝文平%硃新平%鄭光明%單奇%馬麗莎
사문평%주신평%정광명%단기%마려사
多环芳烃%珠江三角洲%养殖鱼塘%健康风险
多環芳烴%珠江三角洲%養殖魚塘%健康風險
다배방경%주강삼각주%양식어당%건강풍험
polycyclic aromatic hydrocarbons%Pearl River Delta%fish pond%health risk assessment
利用气相色谱质谱仪(GC-MS)对广东罗非鱼主要养殖区水体及罗非鱼肌肉中16种优控多环芳烃(PAHs)的含量进行检测,并用美国环保局(USEPA)推荐的健康风险评价模型对罗非鱼食用安全进行健康风险评价。结果表明:水体中16种多环芳烃总量为272.53 ng·L-1,范围为53.55~679.97 ng·L-1;罗非鱼肌肉PAHs残留含量范围为182.66~717.20 ng·g-1,平均含量为355.28 ng· g-1;多环芳烃的组成以低环为主,在水体及罗非鱼肌肉所占比例分别为69.64%~97.09%和59.70%~74.46%;罗非鱼经食用所含6种致癌PAHs造成个人年致癌风险值范围为2.87×10-6~1.56×10-5 a-1,低于国际辐射防护委员会(ICRP)推荐的最大可接受风险水平(5.0×10-5 a-1),但存在一定的致癌风险,8种非致癌PAHs有害污染物对人体的总非致癌风险为2.51×10-10~1.54×10-9 a-1,低于国际标准值,健康风险较低。
利用氣相色譜質譜儀(GC-MS)對廣東囉非魚主要養殖區水體及囉非魚肌肉中16種優控多環芳烴(PAHs)的含量進行檢測,併用美國環保跼(USEPA)推薦的健康風險評價模型對囉非魚食用安全進行健康風險評價。結果錶明:水體中16種多環芳烴總量為272.53 ng·L-1,範圍為53.55~679.97 ng·L-1;囉非魚肌肉PAHs殘留含量範圍為182.66~717.20 ng·g-1,平均含量為355.28 ng· g-1;多環芳烴的組成以低環為主,在水體及囉非魚肌肉所佔比例分彆為69.64%~97.09%和59.70%~74.46%;囉非魚經食用所含6種緻癌PAHs造成箇人年緻癌風險值範圍為2.87×10-6~1.56×10-5 a-1,低于國際輻射防護委員會(ICRP)推薦的最大可接受風險水平(5.0×10-5 a-1),但存在一定的緻癌風險,8種非緻癌PAHs有害汙染物對人體的總非緻癌風險為2.51×10-10~1.54×10-9 a-1,低于國際標準值,健康風險較低。
이용기상색보질보의(GC-MS)대엄동라비어주요양식구수체급라비어기육중16충우공다배방경(PAHs)적함량진행검측,병용미국배보국(USEPA)추천적건강풍험평개모형대라비어식용안전진행건강풍험평개。결과표명:수체중16충다배방경총량위272.53 ng·L-1,범위위53.55~679.97 ng·L-1;라비어기육PAHs잔류함량범위위182.66~717.20 ng·g-1,평균함량위355.28 ng· g-1;다배방경적조성이저배위주,재수체급라비어기육소점비례분별위69.64%~97.09%화59.70%~74.46%;라비어경식용소함6충치암PAHs조성개인년치암풍험치범위위2.87×10-6~1.56×10-5 a-1,저우국제복사방호위원회(ICRP)추천적최대가접수풍험수평(5.0×10-5 a-1),단존재일정적치암풍험,8충비치암PAHs유해오염물대인체적총비치암풍험위2.51×10-10~1.54×10-9 a-1,저우국제표준치,건강풍험교저。
Polycyclic aromatic hydrocarbons(PAHs)have caused water and aquatic product pollution. In this study, the residual levels of 16 priority PAHs in water and Tilapia samples collected from fish ponds, markets and supermarkets in four cities of Guangdong Province were measured by GC-MS. The health risk model recommended by USEPA was used to assess health risk of these fish products. Total concentra-tions of 16 priority PAHs in the water ranged from 53.55 ng·L-1 to 679.97 ng·L-1, averaging 272.53 ng·L-1, while the contents of PAHs in aquatic products ranged from 182.66 ng·g-1 to 717.20 ng·g-1, with the average concentration of 355.28 ng·g-1. The predominant PAHs in the water and the fish were low-molecular ones, which accounted for 69.64%~97.09%and 59.70%~74.46%, respectively. The carcinogenic risk indexes of 6 PAHs through the fish consumption ranged from 2.87×10-6 a-1 to 1.56×10-5 a-1, with 8.96×10-6 a-1 and 3.54×10-6 a-1 for the town and county residents, respectively. The non-carcinogenic risk indexes of 8 PAHs varied from 2.51×10-10 a-1 to 1.54×10-9 a-1, much lower than the maximum tolerable value(5.0×10-5 a-1)recommended by the International Commission on Radiological Protection.