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.
Faculty of Applied Life Sciences, Niigata University of Pharmacy and Applied Life Sciences, 265-1 Higashijima, Akiha-ku, Niigata, 956-8603, Japan.
Tomiyuki
T
Hori
Naoya
N
Shiota
Takashi
T
Asada
Kikuo
K
Oikawa
Kuniaki
K
Kawata
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