Characterization, source apportionment, air/plant partitioning and cancer risk assessment of atmospheric PAHs measured with tree components and passive air sampler

Sari M. F., Esen F., Taşdemir Y.

ENVIRONMENTAL RESEARCH, cilt.194, 2021 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 194
  • Basım Tarihi: 2021
  • Doi Numarası: 10.1016/j.envres.2020.110508
  • Dergi Adı: ENVIRONMENTAL RESEARCH
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Aerospace Database, Applied Science & Technology Source, Aqualine, Aquatic Science & Fisheries Abstracts (ASFA), Artic & Antarctic Regions, BIOSIS, CAB Abstracts, Chemical Abstracts Core, Communication Abstracts, Computer & Applied Sciences, EMBASE, Environment Index, Geobase, Greenfile, MEDLINE, Metadex, Pollution Abstracts, Public Affairs Index, Veterinary Science Database, Civil Engineering Abstracts
  • Anahtar Kelimeler: Biomonitoring, Olive tree, Air-bark partitioning, Ring distribution, Semi-rural site, POLYCYCLIC AROMATIC-HYDROCARBONS, PERSISTENT ORGANIC POLLUTANTS, POLYCHLORINATED-BIPHENYLS PCBS, PINUS-PINASTER NEEDLES, AMBIENT AIR, SEASONAL-VARIATION, INDUSTRIAL REGION, TEMPORAL-CHANGES, SOIL EXCHANGE, OUTDOOR AIR
  • Bursa Uludağ Üniversitesi Adresli: Evet

Özet

In this study, ambient air and olive tree components (leaf and branch) were simultaneously collected and analyzed for polycyclic aromatic hydrocarbons (PAHs) to investigate their levels and accumulations, temporal variations, possible sources, air-plant partitioning and cancer risks for 12 months. During the sampling period, total of 14 PAH (Sigma(14)PAH) concentrations measured in the olive leaves (dissolved and particle phase) and braches (1-and 2-year-old) were 593 +/- 472, 81 +/- 67, 558 +/- 273 and 316 +/- 213 ng/g dry weight (DW), respectively. Similarly, the average Sigma(14)PAH concentrations measured in the ambient air was found to be 15 +/- 16 ng/m(3). Generally, 4-, 5-and 6-ring PAHs were the dominant groups for all tree components, while 2-and 3 ring PAHs were predominant in the air samples. Ring distributions and molecular diagnosis ratios were employed to determine PAH sources in the sampling site. Petroleum and combustion-related sources were found to be important. The Pearson correlation coefficient was allowed to figure out the affinity between PAH levels in the sampling materials and meteorological factors. Temperature and mixing layer height were found to be effective factors on the concentrations. Atmospheric PAH levels were also predicted to employ a bark-air exchange model for determining the PAH movement direction. The predicted/measured ratios were above 1.0. This was probably due to utilizing the branch values rather than bark values in the model. Finally, the risk of cancer has been evaluated. The calculated cancer risks via inhalation were at low levels for adults and children.