Human health is the main concern related to use of crop products irrigated with contaminated irrigation sources. Present research has been conducted to explore heavy metal status of sewage and industrial wastewater being used up for irrigation purpose in the peri-urban areas of the district Dera Ghazi Khan which has not been explored widely before. The analysis also followed heavy metal detection in the subsequent irrigated soil and vegetables/crop plants in relation to assessment of health risk to the consumer to plan the future monitoring in this area. An unremitting boost of heavy metals into the environment from wastewater irrigation has become a global issue. These heavy metals enter the food chain and pose health assumptions to consumers upon utilization. In the present study, an investigation has been conducted to determine metal concentrations in the wastewater, soil, and different plant species. For wastewater samples, pH, total dissolved solids (TDS), electrical conductivity (EC), and selected heavy metals such as Al, As, Cr, Cu, Fe, Mn, Pb, Zn, and Ni were determined. The mean values of heavy metals in the soil samples were within the WHO/FAO safe limit, while Cr and Pb were the most frequent (100%) among the metals. However, differentiating the sites, the concentration of Cr and Cu, Ni, and Fe were elevated. The metal transfer was highly effective from soil to the growing plants i.e. brinjal, red corn, wheat, tomato, and spinach than other plant species. Among the metals, Cr, Ni, Mn, and Pb in plant samples were exceeding the WHO/FAO safe limit. Health risk index (HRI) have revealed the possible potential risk of heavy metal contaminated plant species in the order of spinach (6.4) > wheat (6.4) > brinjal (5.9) > tomato (4.7) > red corn (4.5) > apple gourd (4.3) > white corn (3.8) > cabbage (3.1) > luffa (2.9). Likewise, HRI of different metals was calculated as Cu (19.6) > Zn (17.9) > Cr (2.95) > Ni (0.85) > Mn (0.48) > Fe (0.15) > Cd (0.11) > Pb (0.05) > As (0.00001). The level of HRI through the use of dietary plants revealed an elevated risk level than the acceptable limit (HRI > 1) for Cu > Zn > Cr in adults. Our findings suggest that there would be a serious health risk to the consumers due to the consumption of these plant species being irrigated with the wastewater. Therefore, a strict regulatory mechanism is proposed for the safety of food plants in the study area including monitoring and recycling of crop plants, and building water treatment plants to remove pollutants and clean wastewater.

Over the past two decades, the threat of environmental pollution elements has attracted attention as much as the air pollution. Concentrations of many trace elements in the environment have been significantly affected by man's activities. The present study was made to evaluate the potential effects of ambient air pollutants (SO 2 , NO 2 , CO and PM10) on Calotropis procera and soil in Helwan city. The study also aimed to evaluate the damaging effect of human activities on soil and some plants, where samples would have collected from industrials, traffic and domestic sources in Helwan city. Sampling and measurements were based on the environmental protection agency (EPA) and the American Standard test methods (ASTM). Evaluation of air pollutants (SO 2 , NO 2 , CO and PM10) was measured by Miran Gas Analyzer and Thermo Dust Meter. It was found that all metals were belonging to very high contamination category at all sites near the factories except iron. the internal parts of the leaf and shoot in the Calotropis procera are not affected by concentrations of air pollutants found in Helwan industrial area air or even high concentrations in soil

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Here, we investigated the chemical composition of the edible Phlomis aurea oil and its anticancer potential on four human cancer cell lines, as well as its antiviral activity against Herpes...