干旱区生态环境知识资源中心(Arid): Distribution, composition and risk assessment of hydrocarbon residue in surficial sediments of El-Dakhla, El-Kharga and El-Farafra oases, Egypt

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DOI	10.1038/s41598-023-46133-9
	Distribution, composition and risk assessment of hydrocarbon residue in surficial sediments of El-Dakhla, El-Kharga and El-Farafra oases, Egypt
	Said, Tarek O.; Ragab, Safaa; El Sikaily, Amany; Hassaan, Mohamed A.; El Nemr, Ahmed
通讯作者	El Nemr, A
来源期刊	SCIENTIFIC REPORTS
ISSN	2045-2322
出版年	2023
卷号	13 期号:1
英文摘要	This work examined the polycyclic aromatic hydrocarbons (PAHs) and n-alkanes quantities, sources, and hazards in sediments collected from the Egyptian Western Desert Oases namely: Dakhla, Kharga and Farafra oases. The n-alkane (C9-C20) residue concentrations have ranged from 0.66 to 2417.91 mu g/g recorded for the three Oases. On the other hand, the total n-alkane ranged from 448.54 mu g/g to 8442.60 mu g/g. Higher carbon preference index (CPI) values (> 1.0) proposed that the natural sources could be the main contributor to n-alkanes in the Oases sediment. GC-MS/MS (selected reaction monitoring (SRM) method) was used for the determination of the sigma PAHs concentrations in the studied sediments. The Sigma PAHs concentrations (ng/g, dry weight) in the studied three Oases varied from 10.18 to 790.14, 10.55 to 667.72, and from 38.27 to 362.77 for the Kharga, Dakhla and Farafra Oases, respectively. The higher molecular weight PAHs were the most abundant compounds in the collected samples. Assessing potential ecological and human health issues highlighted serious dangers for living things and people. All the investigated PAHs had cancer risk values between 1.43 x 10(-4) and 1.64 x 10(-1), this finding suggests that PAHs in the samples under study pose a moderate risk of cancer. The main sources of PAHs in this study are biomass, natural gas, and gasoline/diesel burning emissions.
类型	Article
语种	英语
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:001105087400015
WOS关键词	POLYCYCLIC AROMATIC-HYDROCARBONS ; MEDITERRANEAN SEA ; SURFACE SEDIMENTS ; N-ALKANES ; OXYGENATED-PAHS ; WESTERN DESERT ; TRACE-METALS ; FISH ; QUALITY ; RIVER
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/398608
推荐引用方式 GB/T 7714	Said, Tarek O.,Ragab, Safaa,El Sikaily, Amany,et al. Distribution, composition and risk assessment of hydrocarbon residue in surficial sediments of El-Dakhla, El-Kharga and El-Farafra oases, Egypt[J],2023,13(1).
APA	Said, Tarek O.,Ragab, Safaa,El Sikaily, Amany,Hassaan, Mohamed A.,&El Nemr, Ahmed.(2023).Distribution, composition and risk assessment of hydrocarbon residue in surficial sediments of El-Dakhla, El-Kharga and El-Farafra oases, Egypt.SCIENTIFIC REPORTS,13(1).
MLA	Said, Tarek O.,et al."Distribution, composition and risk assessment of hydrocarbon residue in surficial sediments of El-Dakhla, El-Kharga and El-Farafra oases, Egypt".SCIENTIFIC REPORTS 13.1(2023).