金桔园土壤及金桔中酞酸酯污染特征分析

Characteristics Analysis of Pollution Phthalates in Soils of Kumquat Garden and Kumquat

对金桔园土壤及金桔中酞酸酯污染特征进行了分析,结果表明:调查的6种酞酸酯,5个土壤监测点DMP、DEP、DOP、BBP都未检出;DBP、DEHP全部都有检出,各土壤监测点中DBP浓度值均比DEHP浓度值高。3个金桔样中DMP、DOP、BBP都未检出;DEHP、DBP、DEP全部都有检出,PAEs浓度值都遵循DEHP>DBP>DEP的规律。金桔果实对PAEs的吸收积累途径主要是通过果实外表皮直接吸收塑料大棚中的PAEs蒸汽。

The characteristics analysis of phthalates pollution in surface soils of kumquat garden and kumquat indicated that among the in- vestigation of 6 kinds of phthalate, any DMP, DEP, DOP and BBP were not detected; DBP and DEHP were all detected in 5 samples of soil monitoring points. In different soils, the average value of DBP was higher than DEHP. As for phthalate in 3 kumquat samples, DMP, DOP, BBP were not detected at all while DEHP, DBP, DEP were detected. The concentration of PAEs followed the rule DEHP〉DBP〉DEP. For the fruit of kumquat, the main way to assimilate and accumulate the PAEs was to absorb the PAEs stream in plastic canopy directly through the kumquat skin.