Identification, quantification and toxicity of PCDDs and PCDFs in soils from industrial areas in the central and eastern regions of Saudi Arabia

مقال فى مجلة
K.K.H, Al-Wabel, M.I., El-Saeid, M.H., Usman, A.R.A., Al-Turki, A.M., Ahmad, M., Hassanin, A.S., El-Naggar, A.H., Al-Enazi, . 2016
رابط النشر على الانترنت
مجلة/صحيفة
Bulletin of Environmental Contamination and Toxicology
رقم المجلد
96
الصفحات
622-669
تاريخ المؤتمر
ملخص المنشورات

This study was conducted to identify and quantify polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) in soil samples collected from selected industrial areas in the central and eastern regions of Saudi Arabia. All the investigated compounds of PCDDs/PCDFs were identified in the studied locations. The average concentrations of PCDDs (sum of seven congeners measured) ranged from 11.5 to 59.6 pg g(-1), with a maximum concentration of 125.7 pg g(-1) at an oil refinery station followed by 100.9 pg g(-1) at a cement factory. The average concentrations of PCDFs (sum of 10 congeners measured) accounted for 11.68-19.35 pg g(-1), with a maximum concentration of 38.67 pg g(-1) at the cement factory. It was generally observed that the soil samples collected from industrial areas have substantially high toxicity equivalence (TEQ) values of PCDDs/PCDFs compared to soils of remote areas. Principal component analysis revealed that the cement factories and oil refineries were the primary sources of PCDDs and PCDFs.