The Sea of Marmara has been in its last 4 years due to increasing pollution pressure. Alarming results were reached from the latest scientific research conducted in the Sea of Marmara, where mucilage, jellyfish and algae blooms occur periodically. In water samples taken from 20 points on the line extending from the coast of Kumburgaz in Istanbul to the coast of Köse İlyas in Tekirdağ, it was determined that the arsenic value originating from industrial, mining and agricultural activities was higher than 5. As a result of the research conducted by Abdullah Yinanç from the Department of Environmental Engineering of the Faculty of Engineering of Namık Kemal University in Tekirdağ, it was stated that “This has become an indicator of anthropogenic pollution” regarding the increasing arsenic pollution.
HEAVY METAL INCREASE
As a result of the research conducted in the water resources defined as aquatic sediments in the “Tekirdağ-İstanbul” line determined as Western Marmara, it was also understood that zinc pollution was above the limit value. The following determinations were listed regarding the results obtained: “The fact that the Marmara Sea is an inland sea and that there are densely populated areas around it makes it vulnerable to both domestic and industrial pollution. High concentrations of heavy metals and organic matter in seawater are among the most important indicators of pollution.”
IT HAS A TOXIC EFFECT
“The study underlined that heavy metal pollution shows toxic effects when it exceeds the limit value, and added, “For this reason, lead, zinc, copper, mrom, cadmium and other metals are considered as metals with human-induced toxic effect potential in environmental risk assessments. Only 1 percent of the pollutants entering the water environment remain in the water; almost all of them settle and are stored in the sediment. It has been determined that organic pollution occurs in the Gulf where agriculture is intensive. As a result of the analysis, it has been seen that there is pollution in areas that are risky in terms of water quality.” it was said.
ARSENIC ABUNDANCE
The research also emphasized that the Sea of Marmara has its share of pollution from waste dumped into rivers, and the following warnings were made regarding the results: “Tekirdağ and Istanbul are important regions of Turkey in terms of population density, agriculture, industrialization and maritime transportation. “The uncontrolled discharge of both domestic waste and agricultural and industrial waste in the region can cause pollution of rivers in terrestrial areas. The Marmara Sea is also directly or indirectly affected by this pollution.”
LOCATION NUMBER 12
“The abundance of zinc and arsenic in the marine environment is understood to be a result of agricultural pesticide and fertilizer use and industrial activities in the region. It was determined that all locations except locations 19 and 20 had very high pollution. “Location number 12, where cobalt values are very high, is around the Fevzipaşa settlement and a stream is seen flowing into the sea at this point.”
PESTICIDE POLLUTION
For the research results that draw attention to the organic carbon percentage, it is stated that “It is high at the points where the rivers flow into the sea. The high organic carbon percentage value obtained in the study shows that the pollution is of terrestrial plant origin. BIt is recommended to control fertilizers and pesticides used in agricultural activities to prevent the pollution detected here. Industrial wastes should be discharged into the sea after being treated in advanced treatment facilities, and the discharge of ship waste into the sea during maritime transportation should be prevented. These measures are of vital importance for the protection of the Marmara Sea and a sustainable environmental policy.
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