Distribution of polycyclic aromatic hydrocarbons and n-alkanes in surface sediments from Shinano River, Japan.
The distribution of polycyclic aromatic hydrocarbons (PAHs) and n-alkanes was investigated in the surface sediment from the Shinano River in Niigata, Japan. The total concentrations of the PAHs and n-alkanes ranged from 102 to 10,450 ng/g dry weight and from 160 to 3,530 ng/g dry, respectively. Perylene (Per) in the sediment samples originated from both the same anthropogenic sources as benzo[a]pyrene and the natural sources; the anthropogenically derived Per was estimated at 0.4%-27% of the Per in the sediment. The carbon preference index values ranged from 0.77 to 2.48, suggesting the differences in the n-alkane sources at the investigated sites. The investigated sites were divided into three clusters by the cluster analysis.
Hori
Tomiyuki
T
Faculty of Applied Life Sciences, Niigata University of Pharmacy and Applied Life Sciences, 265-1 Higashijima, Akiha-ku, Niigata, 956-8603, Japan.
Shiota
Naoya
N
Asada
Takashi
T
Oikawa
Kikuo
K
Kawata
Kuniaki
K
D000473:Alkanes / Q000032:analysis*; D016000:Cluster Analysis; D004784:Environmental Monitoring; D008401:Gas Chromatography-Mass Spectrometry; D019015:Geologic Sediments / Q000032:analysis*; D007202:Indicators and Reagents; D007564:Japan; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis* / Q000737:chemistry; D012015:Reference Standards; D014465:Ultrasonics; D014874:Water Pollutants, Chemical / Q000032:analysis*
D000473:Alkanes; D007202:Indicators and Reagents; D011084:Polycyclic Aromatic Hydrocarbons; D014874:Water Pollutants, Chemical