Uptake of vapor and particulate polycyclic aromatic hydrocarbons by cabbage.
Polycyclic aromatic hydrocarbons (PAHs) in cabbage (aerial part), air (gas and particles) and soil samples collected from two sites in Tianjin, China were measured. Although the levels of PAHs in all samples from the heavily contaminated site B were higher than those from the less contaminated site A, the PAH profiles were similar, suggesting the similarity in source type. PAH concentrations in cabbages were positively correlated to either gas or particle-bound PAHs in air. A multivariate linear regression with cabbage PAH as a function of both gas and particle-bound PAHs in air was established to quantitatively characterize the relationship between them. Inclusion of soil PAH concentrations would not improve the model, indicating that the contribution of soil PAHs to cabbage (aerial part) accumulation was insignificant.
Tao
S
S
Laboratory for Earth Surface Processes, College of Environmental Sciences, Peking University, Beijing 100871, China. taos@urban.pku.edu.cn
Jiao
X C
XC
Chen
S H
SH
Xu
F L
FL
Li
Y J
YJ
Liu
F Z
FZ
D000393:Air Pollutants / Q000032:analysis; D001711:Biotransformation; D001937:Brassica / Q000737:chemistry*; D004785:Environmental Pollutants / Q000032:analysis*; D005506:Food Contamination; D016014:Linear Models; D008954:Models, Biological; D018515:Plant Leaves / Q000737:chemistry; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis*; D012989:Soil Pollutants / Q000032:analysis
D000393:Air Pollutants; D004785:Environmental Pollutants; D011084:Polycyclic Aromatic Hydrocarbons; D012989:Soil Pollutants