teacher. Dr. Description of ‘microplastic’ by Nüket Sivri

Since 2006, he has been conducting research in the coastal areas of Istanbul, in particular the Küçükçekmece Lagoon. teacher. Pointy Dr. NuketHe said they’ve encountered plastics in creatures at different trophic levels, from invertebrates to marine mammals and even seabirds.

Stressing that microplastics are a bad legacy from our ancestors, and that we should minimize the damage caused by plastic waste before leaving it to the future, Sivri said the pressure of macroplastics on the growth and development of organisms has already done the subject of numerous documentaries.

“THE BIOACCUMULATION POTENTIAL OF MICROPLASTICS INCREASES AS THE SIZE DECREASES”

Pointing out that microplastics can accumulate in planktonic organisms and small invertebrates, and that they have observed why and how this happens in laboratory scientific research, Sivri explained that microplastics, which are as large than the eggs of certain species of fish, can easily travel without encountering obstacles until they reach the seas or lakes without being caught in the filters.

Pointing out that another way of transporting microplastics in the marine environment is through sewage and rainwater, Sivri said:

We get different information every day about the interaction of microplastics in aquatic areas with living things and the effects of microplastics on species. The bioaccumulation potential of microplastics increases as size decreases. This potential for accumulation causes toxic effects on species in the food web, which is the basis of the ecological system. It is possible to mention studies reporting lower somatic growth rates and reproductive capacity after ingestion of microplastics in invertebrate animals. In recent projects and studies carried out both nationally and internationally, we have also encountered the effects of microplastics leading to the death of organisms of this type, which play an active role in the nutrition of fish, rather than microplastics detected in the stomach of fish. Although studies examining the effects of microplastics on microorganisms in the marine environment have recently increased, the literature data on the amounts of microplastics and nanoplastics detected in the environment are insufficient to make a risk assessment. . Ongoing studies are essential to identify the risk and potential impact of exposing organisms to microplastics.

Exposure to microplastics in vertebrates; Sivri said ingestion or contamination of other exposed organisms can occur through direct absorption of plastic parts from water columns or sediment, and drew attention to the fact that microplastics opened a dangerously risky route of exposure due to the high rate of spread in airflow.

Sharp, “Besides differences in metabolism and individual susceptibility, the response to inhalation of microplastics can be summarized as immediate bronchial reactions, diffuse interstitial fibrosis, inflammatory and fibrotic changes in bronchial and peribronchial tissues, and interalveolar lesions.” He said. Sivri recalled research conducted by the Vrije University of Amsterdam in the Netherlands, in which microplastics were first found in human blood, and continued:

In his recent studies on microplastics, even the detection of microplastics in blood ceased to amaze scientists. Because microplastics were known to exist even in the fetus in the womb. We see microplastic structures all over the world. Even in Antarctica, where people only go for research purposes, microplastic structures are detected. It was a very efficient development to detect in the blood, but it was within our expectations. Think about the structure and the pressure of a structure that came into human blood, microplastics introduced into the body through respiration, on human beings? In other words, although our bodies can somehow expel these microplastics, there are certain organisms that we work with in our projects, such as daphnia (water flea), that microplastics cause effects toxic to these organisms. Our experiments, depending on the characteristic of the microplastic, can cause the organism to explode, shrink or even die because it cannot digest the swallowed microplastic.

“NATURE WANTS PEOPLE’S HELP TO PREVENT MICROPLASTIC POLLUTION”

Pointing out that plastics are being produced and used more and more frequently by people, Sivri said plastics have become the most polluting anthropogenic debris.The effects of microplastics on human health, which is nature’s most difficult equation to solve, is the most difficult question to answer. We also lack information on its existence in different environmental matrices such as distribution, monitoring. Monitoring microplastics in a variety of biotic and abiotic environmental matrices is essential for further studies to identify pollution status, flux, and potential risk and impact of exposure by organisms. However, since microplastic tracking studies require reliable and comparable methods, they should be screened.‘ he said.

teacher. Dr. Emphasizing that many factors are important in shaping environmental sensitivity in individuals, Nüket Sivri made the following suggestions:

In addition to scientific studies to be conducted, the problem of plastic pollution and its unsolved equation should be clearly explained to the whole society through environmental awareness education at the kindergarten level. By supporting the “zero waste project”, led by Mrs. Emine Erdoğan, who carries out very valuable projects and studies with her sensitivity on the environment, we can guarantee that plastic waste is managed in the most correct way, so I think the ongoing studies are very valuable. I believe that the main problem in this respect stems from the low level of individual participation. As before the pandemic, awareness studies must be multiplied and the lack of education must be eliminated quickly. Due to the pandemic, disposable plastic products have been preferred more often. Even the ear sticks we use are products that we consume in a very short time, between 5 seconds and 1 minute, and nature can no longer accept these products. Nature can present them to us even after 300 years, so it’s a bit of individual use and awareness.

Stating that they are involved in many microplastics projects in Turkey and internationally, Prof. Dr. Sivri concluded his remarks as follows:

We have researchers working successfully not only in the Sea of ​​Marmara, but also in different stations in the Black Sea, Mediterranean and Aegean coastal areas in Turkey. In addition to our projects supported by TÜBİTAK, we have ongoing studies and joint scientific publications with Argentina, England and Korea since 2015. These are the great achievements we have made on behalf of our country.

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