Bioaccumulation, sources and health risk assessment of polycyclic aromatic hydrocarbons in Lilium davidii var. unicolor. by Haixu Sun, Tianxiang Xia, Hongguang Cheng, Zhenzhen Wu, Qianding Cheng, Lu Lu, Chunbao Fu

“…Correlation analysis and principal component analysis with multivariate linear regression indicated that biomass and wood burning, coal combustion, diesel combustion, and petroleum leakage were the major sources of PAHs in the raw bulbs. …”
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