南宁市不同区域五种蔬菜的多环芳烃含量分析  

Analysis of Contents of Polycyclic Aromatic Hydrocarbons in Different Vegetable Types of Nanning City

作　　者：龙明华[1] 龙彪[1] 唐璇[1] 李朋欣 张会敏[1] 梁勇生[1,2] 

机构地区：[1]广西大学农学院,广西南宁530004 [2]南宁市蔬菜研究所,广西南宁530000

出　　处：《北方园艺》2018年第5期7-14,共8页Northern Horticulture

摘　　要：以南宁市4个传统的蔬菜基地中采集的不同季节、不同种类的辣椒、苦瓜、豆角、萝卜及菜心等5种蔬菜为试材,采用高效液相色谱法研究了不同区域5种蔬菜中EPA规定的16种优先控制的多环芳烃,以期为蔬菜安全生产监测与研究、多环芳烃风险评估以及环境污染治理等工作提供参考依据。结果表明:EPA规定的16种优先控制的多环芳烃在南宁市5种蔬菜中均有检出,5种蔬菜中∑PAHs的含量范围为(140.62±58.56)^(741.06±220.26)μg·kg-1FW,其∑PAHs含量较国内外已有的研究数据高。4个区域蔬菜基地蔬菜中∑PAHs含量依次为那马镇>广西大学>五塘镇>双桥镇;不同季节蔬菜中∑PAHs含量有着明显的差异,∑PAHs含量依次为2月(冬季)>11月(秋季)>5月(春季)>8月(夏季);不同种类蔬菜中∑PAHs含量差异明显,∑PAHs含量依次为豆角>苦瓜>辣椒>菜心>萝卜,按照食用部位分类,∑PAHs含量依次为果菜类>叶菜类>根菜类。The contents of 16 kinds of polycyciic aromatic hydrocarbons （PAHs）, which were on the list of priority control PAHs that stated by U. S. EPA in the 5 kinds of vegetables of different bases in Nanning city,were analyzed by HPLC. The results showed that 16 kinds of PAHs were all detected in the vegetable of Nanning city, the content range of ∑PAHs in vegetable were （140. 624±58. 56）- （741.06±220. 26）μg · kg-1FW, which was on the high level when compared with other area. The rank of ∑PAHs content in four bases of Nanning city was： Nama〉Guangxi University〉Wutang〉 Shuangqiao. ∑ PAHs content in vegetable were significantly different in four seasons, The rank of ∑ PAHs content in four seasons was ： February （winter） 〉 December （autumn） 〉 May （spring） 〉 August（summer）. ∑PAHs content were significantly different in five kinds of vegetable, the rank of ∑PAHs content in four seasons of was：Vigna unguiculata〉Mornordica charantia L. 〉Capsicurn annuurn L. 〉Brassica campestris L. ssp. chinensis var. utilis Tsen et Lee〉Raphanus sativus L.

关 键 词：南宁市 蔬菜 多环芳烃 污染 

分 类 号：S601[农业科学—园艺学]