air pollutant
; polycyclic aromatic hydrocarbon
; sea water
; air pollutant
; chemistry
; environmental monitoring
; season
; South Korea
; Air Pollutants
; Environmental Monitoring
; Polycyclic Aromatic Hydrocarbons
; Republic of Korea
; Seasons
; Seawater
Scopus学科分类:
Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要:
Concentrations of 15 polycyclic aromatic hydrocarbons (PAHs) in air–seawater interface were measured over 1 year in the coastal region of Incheon, South Korea. Most individual PAHs and total PAHs in air displayed statistically significant negative correlations with temperature, but not significant in seawater. Less hydrophobic compounds with three rings were at or near equilibrium in summer, while PAHs with four to six rings were in disequilibrium in all seasons, with higher fugacity gradients in colder seasons and for more hydrophobic compounds. Differently from fugacity gradients, the highest net fluxes occurred for some three- and four-ring PAHs showing the highest atmospheric concentrations. Net gaseous exchange, which was higher in winter, occurred from air to seawater with an annual cumulative flux of 2075 μg/m2/year (for Σ15PAHs), indicating that atmospheric PAHs in this region, originating from coal/biomass combustion, can deteriorate the quality of seawater and sediment. � 2016 Elsevier Ltd
Department of Marine Science, College of Natural Sciences, Incheon National University, 119 Academy-ro (Songdo-dong, Yeonsu-gu, Incheon, South Korea; Research Institute of Basic Sciences, Incheon National University, 119 Academy-ro (Songdo-dong), Yeonsu-gu, Incheon, South Korea; Department of Biology, Incheon National University, 119 Academy-ro (Songdo-dong), Yeonsu-gu, Incheon, South Korea
Recommended Citation:
Kim S.-K.,Chae D.H.. Seasonal variation in diffusive exchange of polycyclic aromatic hydrocarbons across the air–seawater interface in coastal urban area[J]. Marine Pollution Bulletin,2016-01-01,109(1)