The El Manzala region lies in the Dakhalia governorate and has been named after Lake Manzala. The Manzala town has bumpy and narrow streets and no. Introduction. Manzala Lake (Fig. 1) is the largest coastal lake in. Egypt which is a shallow brackish lake extending between the Damietta Nile River branch and. PDF | Lake Manzala is the biggest coastal lake in Egypt and the target of many different studies dated back probably to By screening the.
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This is an open access article distributed under the terms of the creative commons attribution Licensewhich permits unrestricted use, distribution and reproduction in any medium, provided the original author and source are credited. An assessment of metal pollution.
Humans undergo to it through food or water or by contact with soil or air. Laake 3 shows the standards for these pollution indicators.
Manzala Travel Guide
Individual contamination factor is an efficient tool for estimation of pollution during a period of time and determination of the pollution status of single substances:. Also, in the areas of petroleum service activities, scrapping, maintenance of ships, marine equipment, marine services in addition to the conservation, cooling, mobilize food, the area of screening and grading of agricultural crops as well as the storage of goods re-exported out of the country.
In the present study, selenium ranges from ppm, averaging 4 ppm.
Lake Manzala water quality, impact assessment laoe sources of pollution. Metals, arsenic and hydrocarbons monitoring in marine sediment during drilling activities using NAFs. Where 1 g powder of dried sample is weighed into teflon crucible and digested by using mixture from HNO 3HClO 4 and HFafter near dryness the residue was dissolved with HCl and diluted to mL with distilled water.
The index of an individual pollutant is calculated as follows:. The following is a summarized study on the environmental status of studied metals that may cause some risk or endanger on lakr health and environmental effects beside the geochemical distribution maps of toxic metals.
For each region, the RPI is classified into low, medium and high pollution, as follows: Toxicological Profile for Selenium. People that live near suburbs of Manzala Lake will undergo to a higher exposure through soil and air, also by eating a lot of grains that grow near hazardous sites may experience a higher exposure through food. Very high contamination was recorded at all stations lke tin except stations 9, 10 and 15 which showed moderate contamination factor.
Manzalx volcano erupted 3, years ago. With a lake this shallow, it became necessary to build something to help the ships to pass through, and therefore a banked channel was dug. The city was known as Daphnae by the Mahzala.
The MPL of As in the worldwide soils is 1. ByLake Manzala had lost approximately 80 percent of its former area through the effects of drainage efforts.
The enrichment factors of studied toxic metals in the Lake sediments were listed in Table 4. Arsenic in groundwater in the Bengal delta plain: Ancient island city like Tanis and early city kake Tahpanhes lie on the Lake.
Lake Manzala |
Generally, the distribution of heavy metals in Manzala Lake revealed that the industrial districts represented by Port Said and Damietta Governorates, agricultural drains represented by El-Serw, Hadous and Bahr El-Baqar drains beside the fisheries activity considered the main pollution sources. Springer, New York, pp: Plants soak up arsenic easily, so that high-dose supposedly present in food.
Selenium may be higher than usual in agricultural land, because fertilizers have been applied on farmland. Organic tins can propagate through the water systems when adsorbed on sediment particles.
Toxicological profile for arsenic. The huge use of tin in canned food tends to be the low toxicity Use of enrichment and contamination factors together with geoaccumulation indexes to evaluate the content of Cd, Cu and Ni in the Rybnik water reservoir in Poland.
The study was carried out on Manzala Lake through summer, to monitor and evaluate the levels of arsenic, selenium, tin and antimony in sediment. Tin alloys are used in welder for gathering metallic pipes and dental amalgams. The health effects of selenium have been the objective of Hu et al. The second industrial pollution sources derived from the areas of activity in Damietta Governorate West side of the lake is petrochemical, laoe services, gas liquefaction, medical supplies, a collection of computers and electronic appliances, textile and garment, food, activity maritime transport, marine services, refrigerators for keeping food intended for export outside the country, furniture and wood products laoe, processing and sorting of grains.
Lake Manzala – Wikipedia
Comparison between concentrations of As, Se and Sn metals in the present study and some previous studies of Manzala Lake. The extensive uses of selenium which consider as good photovoltaic and photoconductive properties, in electronics, glass industry and use for animal feeds and food supplements. lwke
High solid torch standard axial 2. Water Air Soil Pollut. Arsenic exposure may be higher for people who live on farmlands where arsenic-containing pesticides have been applied in the past.