Polycyclic Aromatic Hydrocarbon Accumulation in Urban, Suburban, and Rural Vegetation
Polycyclic Aromatic Hydrocarbon Accumulation in Urban, Suburban, and Rural Vegetation
复制标题
DOI：
10.1021/es960419i
复制
发表时间：
1997
影响因子：
11.4
通讯作者：
Diane M. Wagrowski;R. Hites
中科院分区：
文献类型：
--
作者：
Diane M. Wagrowski;R. Hites
Polycyclic aromatic hydrocarbons (PAH) partition from the atmosphere to vegetation, soil, water, and sediment. In an effort to quantitate vegetation's ability to scavenge PAH, we collected vegetation samples from urban, suburban, and rural locations during the summer and fall of 1995 and determined PAH burdens (ng/cm2) on a mass per total leaf surface area basis. The total PAH burdens in the rural vegetation samples were, on average, 10 times lower than in the urban samples, confirming that atmospheric PAH burdens are higher near presumed source regions. We also compared the individual PAH burden profiles for urban, suburban, and rural samples. All samples had similar profiles for fluorene, phenanthrene, fluoranthene, and pyrene, while the rural samples were depleted of anthracene, benz[a]anthracene, and several higher molecular weight PAH. In order to calculate a PAH to vegetation mass balance for the northeastern region of the United States, we divided this land area into rural, suburban, and urban clas...
