Distributions and sources of petroleum, aliphatic hydrocarbons and polycyclic aromatic hydrocarbons (PAHs) in surface sediments from Bohai Bay and its adjacent river, China

Aliphatic and polycyclic aromatic hydrocarbons risk assessment in coastal water and sediments of Khark Island, SW Iran

“…On the contrary, due to high hydrophobic properties of AHs, the composition of n-alkanes in sediments showed very variable pattern such that the total concentration of the n-alkanes (∑ C 10 -C 35 ) ranged from 19.75 to 49.25 μg/g (mean 25.31 μg/g) ( Table 4). In comparison with the results obtained in other studies, ∑ n-alkanes in sediments of Khark Island were as high as in the sediments at the coast of Aliağa, Turkey (Neser et al, 2012), much higher than in sediments at Bohai Sea (Li et al, 2015d;Wang et al, 2015), Sergipe-Alagoas Basin, Brazil (Lourenço et al, 2013) and much lower than sediments of the west coast of Peninsular Malaysia (Vaezzadeh et al, 2015), Ushuaia Bay, Argentina (Commendatore et al, 2012). ∑ n-alkanes showed moderate relationship with clay sized particles and TOC (R 2 = 0.44 and R 2 = 0.51, respectively, P b 0.05, n = 8).…”

“…The CPI is calculated based on both high molecular weight (HMW) and low molecular weight (LMW) n-alkanes Li et al, 2015d Where, TAR is terrigenous/aquatic ratio and NAR is Natural nalkanes ratio, the details of which are given in (Commendatore et al, 2012;Kucuksezgin et al, 2012;Silva et al, 2013;Tran et al, 1997;Vaezzadeh et al, 2015;Wang et al, 2015). …”

“…The carbon preference index (CPI) is the most common index for determination of the sources of AHs (Commendatore et al, 2012;Li et al, 2015d;Vaezzadeh et al, 2015;Wang et al, 2015). The calculated LMW/HMW ratio ranged from 0.73 to 1.33 μg/g.…”

Transcriptional response of four C1q domain containing protein (C1qDC) genes from Venerupis philippinarum exposed to the water soluble fraction of No.0 diesel oil

“…After the acclimatization, the clams were randomly distributed into three equal aquariums as two exposure groups (1 and 5 mg L À 1 WSF), with an unexposed group used for control. The WSFD concentrations were chosen based on previous results of acute toxicology measured in V. philippinarum (Sun et al, 2013) and have been reported in some heavily polluted sites of the Bohai Sea and the coastal waters of southeast China (Ou et al, 2004;Wang, 2015). Each group contains 80 individuals in 40 L seawater.…”

“…There are several reports on the oil pollution aspects of China: seawater (X. Li et al, 2011), sediment (Ou et al, 2004;Wang et al, 2015) and biota . In the Pearl River estuary, for instance, the concentrations of petroleum hydrocarbons from 2003 to 2007 were 0.02-0.81 mg L À 1 , which was evidently increased contrasted with the data from 1992 (Wei et al, 2010).…”