[Characters of soil-vegetable transfer and accumulation of polycyclic aromatic hydrocarbons].
The transfer and accumulation of polycyclic aromatic hydrocarbons (PAHs) from aged contaminated agricultural soil to vegetable was studied. The results show that the positive correlation between the PAHs concentrations in tested vegetables and those in the corresponding soils is present. The PAHs concentrations in contaminated soils are significantly (p < 0.05) higher than that in roots, stems and leaves of vegetables, and the PAHs concentrations in roots are also significantly (p < 0.05) higher than that in stems and leaves. The ratio of sum of low molecular weight PAHs to total PAHs concentrations (Sigma LMW-PAHs/Sigma PAHs) in polluted vegetable roots is higher than that in corresponding soils (p < 0.05), and LMW-PAHs are more easily accumulated in vegetable roots than HMW-PAHs (high molecular weitht PAHs). The distinction of PAHs concentrations among the four selected leafy vegetables in the same tested soils does not achieve the significant level.
Yin
Chun-Qin
CQ
State Key Laboratory of Soil and Sutainable Agriculture, Institute of Soil Science,Chinese Academy of Sciences, Nanjing 210008, China. cqyin@issas.ac.cn
Jiang
Xin
X
Yang
Xing-Lun
XL
Wang
Cong-Ying
CY
Bian
Yong-Rong
YR
Wang
Fang
F
D004784:Environmental Monitoring; D005506:Food Contamination / Q000032:analysis*; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis*; D012987:Soil / Q000032:analysis*; D012989:Soil Pollutants / Q000032:analysis*; D014675:Vegetables / Q000737:chemistry*
D011084:Polycyclic Aromatic Hydrocarbons; D012987:Soil; D012989:Soil Pollutants