Abstract

The mean concentrations of heavy metals in the sediments of Burullus Lake shoreline follow a descending order of Mn > Fe > Zn > Co > Cu > Cd > Ni > Pb > Cr. Where concentrations of Cd indicated that 100% of samples were higher than the limits of SQGs and the reverse to Cr that its concentration is within those limits. The mean probable effect level quotient mPELq and mean effect range median quotient mERMq showed 73 and 76% probability of toxic effects in the south-western side of the Lake. Calculation of HI showed hazard degree for Cd in site 7 and sites 4, 6 and 7 for Co and 4 and 5 for Mn in case of adults. While it represents hazard in all sites for Co and Mn except 2 and 3 for Cd in case of Child. Carcinogenic risk assessment gives an indication that the only expected pathway that may cause carcinogenic impacts to the children in the studied sites is from ingestion, while in adults, the chance of exposure pathways increases. Although the chance of risk is higher to a child than those of adults as expected from the comparison of its range.

摘要

Burullus湖岸线沉积物中的重金属平均浓度按照Mn> Fe> Zn> Co> Cu> Cd> Ni> Pb> Cr的降序排列。如果Cd的浓度表明100％的样品高于SQG的限值，而与Cr相反，则其浓度在这些限值之内。平均可能影响水平的商mPELq和平均影响范围中位数的商mERMq在该湖西南侧显示出73％和76％的毒性作用概率。HI的计算表明，成年成年人中Cd在第7位以及C，4、6和7对Co以及Mn在4和5对Mn的危害程度。尽管对于儿童来说，它在所有场所都对Co和Mn构成危害，但对于Cd来说，除了2和3之外，对所有场所都是有害的。致癌风险评估表明，在研究部位可能对儿童造成致癌影响的唯一预期途径是摄入，而在成年人中，暴露途径的机会增加。尽管从范围比较来看，儿童的风险几率比成人的高。