Determination of polycyclic aromatic hydrocarbons (pahs) in mothers' milk of kafr el-zayat district, egypt: A case study for the health risk of infants in urban regions.

For babies, mother milk is the primary source of nutrition. Persistent organic pollutants (POPs), including polycyclic aromatic hydrocarbons (PAHs), are released into the environment by the majority of metropolitan areas. The purpose of this study was to quantify the risks to milk consumers by determining the amounts of 14 PAH congeners in 60 milk samples that were taken from the rural Tanta area and the urban Kafr El-Zayat district of Egypt.

Use of DNA adduct and histopathological defects as indications for bio-persistence potency of zinc oxide nanoparticles in gastropod, Monacha cartusiana (Mǜller) after short-term exposure.

The cytotoxic effects of metallic nanoparticles (MNPs) might be revealed in genomic and histopathological defects. Therefore current study aimed to assess the bio-persistence and adverse effects potency of zinc oxide nanoparticles (ZnONPs) in the gastropod, Monacha cartusiana. Gastropods were exposed to 74 μg/mL for 14 d then the DNA adduct and histopathological defect profiles were assessed.