The study was conducted in the two main industrial areas in Mosul, northern Iraq, where the study included measuring the number of heavy metals (cadmium, aluminum, mercury, chromium) in the blood of workers in those areas. For 20 workers, in contrast, blood samples were drawn from Mosul University employees. They were considered as a control group for being far from industrial activity and for 20 employees. An atomic absorption device was used to analyze blood samples after diluting. In addition, workers were divided into groups according to (age, smoking status, and period of occupational exposure). The results revealed statistically significant differences when comparing the samples of workers to the control group, while the results did not show significant differences between groups of workers. Keywords. Pollution, Blood Serum, Industrial Area.
The present study included assessing current pollution of Al-Khoser by heavy metals and bacteria, which is one of the largest tributaries of the Tigris river in the left bank within Mosul city. The samples were collected from five estuary locations of the khosar river and actually two duplicate samples from each location and through two seasons had been taken, the first in April (spring) and the second in August (summer) 2006.The first collected samples used in the analyses of heavy metals included (Zn), (Cd), (Cu), (Co), and (Pb). While the second collection were used in the calculation of the total bacterial count (TBC) and measure the concentrations of nutrients nitrate and phosphate.The analyses of heavy metals showed higher values relative with in comparison with Tigris River. Both cadmium and copper were found over the limits for drinking water. This is resulting in a significant risk to living organisms in general. The analysis of bacterial count reflects the contamination of Al-Khosar river water.The interpretation of the results revealed an affection of Tigris river water by Al-Khosar river water and this cause a risk limits within 300 meters down stream its estuary.
This research is concerned with organisms isolated from soils contaminated with heavy metals in industrial and residential areas in Mosul, the center of Nineveh Governorate, and the diagnosis of these organisms using molecular biology techniques. Samples were collected from four locations in the city between the industrial area and residential neighborhoods. Soil samples were analyzed, and dilutions were prepared, then the dilutions were grown on potato extract and dextrose (PDA) medium for the development of fungi and Nutrient agar for bacterial development. The dilutions were planted by the casting method by three replications, then the process of purifying the fungal and bacterial colonies was carried out using the traditional methods. To diagnose these pure colonies using PCR technique, colonies of fungi were grown on the medium of PDA, and bacteria were grown on the medium of nutritious broth. As a result, nine fungal species were diagnosed; two of them are new undiagnosed genera that have been registered in the gene bank, four of them contain genetic mutations, and three of them are known and previously diagnosed fungi. As for bacteria, two new strains were isolated and registered in the gene bank among the four diagnosed types. And some of these genera exhibited severe resistance to antibiotics, while others showed moderate resistance, in contrast to the control, which was very sensitive to antibiotics.
Two stations have been selected during the course of Tigris River within Mosul city; the first one is before entering the city, while the other located downstream the city. Results clearly exhibit a significant difference in water quality between the two locations. Aquatic plants and macro-algae populations along about 17 Km of the rivers course were identified. Six aquatic plant species have been identified Potamogeton pusillus, Potamogeton nodosus, Ceratophyllum demersus, Phragmites australis, Phragmites sp. and Typha sp. Potamogeton pusillus a species was the predominant species during the study period, on the other hand macro-algae included Hydrodiction riticulatum, Cladophora glomerata, Chara vulgaris, Chara sp. and Nitella sp., the species Chara vulgaris and Cladophora glomerata from green algae phylum were the predominant species of the five algal identified species during the study period. Clear trespass on the river banks was recorded, sand and gravel queries negatively affecting the river by forming shallow ponds and swamps which are perfect for aquatic plants and algae communities to prosper and flourish leads to dramatic detrimental impact on river health.
The study investigates the possibility of three types of R.rosulus, S.varigatus, P.involutus in removing and lowering the ascending concentrations of copper and zinc elements, during three incubation and contact periods (5,7 and 10 days) and comparing the growth of isolates with control samples. Type P.involutus is the most efficient in the removal by observing the growth of isolates by increasing its diameter compared to the control samples and the concentrations of copper and zinc and for all the days of incubation, while the type S.varigatus was the highest growth at the low concentrations of copper and zinc only and for all periods of incubation, the type R.rosulus. The diameter was smaller as compared to control samples All elemental concentrations of copper and zinc except at concentration (2.5 ppm), and is generally observed increase diameters of the isolates of the three types of increasing periods of incubation and all elemental concentrations of copper and zinc, and this increase is less than at high concentrations of these elements and of all species studied.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citationsโcitations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright ยฉ 2024 scite LLC. All rights reserved.
Made with ๐ for researchers
Part of the Research Solutions Family.