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Сеул, Южна Корея 1973 и сега
https://www.facebook.com/share/1Bun3odP3z/

Originally, Cheonggyecheon was a natural stream that flowed through the center of Seoul for centuries.

During the Joseon Dynasty (1392 - 1897), it played an important role in drainage and flood control, though it was often polluted and required regular maintenance. The government carried out large scale dredging projects to manage flooding and sanitation.

By the mid 20th century, after the devastation of the Korean War, the area around the stream became overcrowded with informal settlements. Pollution worsened to the point that the stream was considered a public health hazard.

By the late 1970s, the stream was covered up with concrete and an elevated highway was built above it during South Korea’s rapid industrialization. This reflected the development priorities of the time, focusing on cars and economic growth rather than environmental or historical preservation.

By the late 20th century, the highway had deteriorated and the area was seen as congested and outdated. In 2003, under then mayor Lee Myung-bak, a major restoration project began. The highway was demolished, and the stream was reconstructed using pumped water and modern engineering.

The restored Cheonggyecheon reopened in 2005 as a 10.9 km long urban park. Today, it is known for reducing urban heat, improving air quality, and revitalizing central Seoul both economically and culturally.

새해복 많이 받으세요! Happy Lunar New Year! Честита Лунна Нова Година!

Националният университет в Бусан заяви в понеделник, че неговите изследователи са разработили метод за пречистване на вода, който премахва микроскопичното пластмасово замърсяване за минути, като събира частиците заедно с магнитно поле, предлагайки потенциален път към по-чисти системи за питейна вода и отпадъчни води.⁠
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Екипът заяви, че процесът им елиминира повече от 95 процента от микро- и нанопластмасите в рамките на 10 минути, използвайки пластинчати магнитни наночастици от железен оксид.⁠
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Подходът е насочен към пластмасови фрагменти, твърде малки, за да бъдат уловени чрез конвенционална филтрация и утаяване, което им позволява да се разпространяват през водните екосистеми и потенциално да се натрупват в човешкото тяло.⁠
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https://www.koreaherald.com/article/10653779
https://www.facebook.com/share/p/1aprCeJ8ef/

Pusan National University said on Monday its researchers have developed a water-treatment method that removes microscopic plastic pollution in minutes by drawing the particles together with a magnetic field, offering a potential route to cleaner drinking water and wastewater systems.⁠
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The team said its process eliminated more than 95 percent of micro- and nanoplastics within 10 minutes by using plate-shaped iron-oxide magnetic nanoparticles.⁠
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The approach targets plastic fragments too small to be captured by conventional filtration and sedimentation, which allows them to spread through aquatic ecosystems and potentially accumulate in the human body.⁠
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https://www.koreaherald.com/article/10653779

Кулата Лоте и кулата Намсан в Сеул не са далеч една от друга 🏙️🥰💕




#сеул
https://www.facebook.com/share/p/1Fi4iREeYP/

Lotte tower and Namsan Seoul tower is not far from each other’s 🏙️🥰💕

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Happy New Year! Честита Нова Година! 새해복 많이 받으세요!