کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5757627 | 1622720 | 2017 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Polycyclic aromatic hydrocarbons in the Yellow River estuary: Levels, sources and toxic potency assessment
ترجمه فارسی عنوان
هیدروکربن های چند حلقه ای معطر در رودخانه زرد: سطوح، منابع و ارزیابی توانایی سمی
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
اقیانوس شناسی
چکیده انگلیسی
This paper presents a systematic but preliminary study on the levels, sources and risk of exposure to polycyclic aromatic hydrocarbons (PAHs) in the Yellow River estuary by examining 16 priority PAHs listed by the U.S. EPA in four main environmental media (soil, surface water, groundwater and sediment). The concentration of individual PAHs in each medium in the study area was compared with the reported PAH values in China and abroad and to related environmental quality standards. The pollution levels of PAHs were found to be moderate in the soil and sediment, and low in the surface water and groundwater. Wood, coal combustion and petroleum inputs are the main PAH sources in soil and sediment, while petroleum inputs and petroleum combustion are the main PAH sources in surface water and groundwater. This indicates that PAH input caused by the high-speed inflow of external water over a long time has made a definite contribution to the occurrence of PAHs in surface water and groundwater in the study area. Furthermore, the mean value of the sum of the Excess Lifetime Cancer Risk (â ELCR) exposure to PAHs in all media exceeded the generally acceptable risk level of 1.0E â 06 recommended by the USEPA for carcinogenic chemicals, and the relative proportion contributed by DBA to the â ELCR was the greatest.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Marine Pollution Bulletin - Volume 116, Issues 1â2, 15 March 2017, Pages 479-487
Journal: Marine Pollution Bulletin - Volume 116, Issues 1â2, 15 March 2017, Pages 479-487
نویسندگان
Jing Li, Fadong Li,