Polycyclic aromatic hydrocarbon (PAH) accumulation in Quercus palustris and Pinus nigra in the urban landscape of Gothenburg, Sweden
نویسندگان
چکیده
Trees have the potential to improve urban air quality as leaves and needles capture pollutants from air, but further empirical data has been requested quantify these effects. We measured concentration of 32 polycyclic aromatic hydrocarbons (PAHs) in pin oak (Quercus palustris) black pine (Pinus nigra) City Gothenburg, Sweden, during summer 2018. Oak were collected twice (June, September), while one-year-old (C + 1) three-year-old 3) sampled June study temporal development leaf/needle PAH concentrations. Specific leaf area (SLA) was estimated, which permitted calculation area-based content that compared with mass-based concentration. In addition, PAHs NO2 using passive samplers. There a strong correlation between concentrations NO2, indicating large degree originate same sources. there significant decrease low molecular mass (L-PAH, mainly gaseous) September, increase high (H-PAH, particle-bound). L-PAH an influence equilibrium processes ambient leaf. needles, both H-PAH needles. Pine superior accumulating especially for L-PAHs when comparing content. However, higher on basis, emphasizing importance how are expressed. The results this can contribute planning strategies regarding effect vegetation quality.
منابع مشابه
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ژورنال
عنوان ژورنال: Science of The Total Environment
سال: 2022
ISSN: ['0048-9697', '1879-1026']
DOI: https://doi.org/10.1016/j.scitotenv.2021.150163