일본 방사선 물질까지 걸러낸 세계에서 가장 깨끗한 한국의 물 | 자면서 듣는 역사이야기

#JejuSamdasu #VolcanicIslandJeju #CleanWater #HallaMountainGroundwater #JejuVolcanicScotch 💧 Did you know that the water you just drank is actually 31 years old? A bottle of mineral water bought at a convenience store for less than 1,000 won. That water fell from the sky as rain a whopping 31 years ago. Rainwater that fell at the summit of Mt. Halla wandered underground for over 30 years before just passing down your throat. 🌋 Why is one of the cleanest waters in the world located in Korea, of all places? Surprisingly, the secret was volcanoes. 🔎 Stories to discover in this video ▪️ How scientists discovered the 31-year age of water ▪️ Why the entire island of Jeju is a giant natural water purifier (The secret of volcanic scoria) ▪️ Vanadium, a mineral found only in Jeju water 🧪 ▪️ The ability of volcanic rocks to block even radioactive materials ▪️ The irony of a water-scarce country exporting water 🌏 ▪️ The International Space Station purifies even urine for drinking, but Jeju gets it for free from volcanoes 🚀 ▪️ Jeju, an island accessible on foot 40,000 years ago ▪️ From the Hantan River to Dokdo and Mt. Baekdu, the traces of the Korean Peninsula etched by volcanoes Did you know that what surprises foreigners the most when they travel to Korea is not K-pop or the night views, but 'water'? 🚰 From the free water served at restaurants and the tap water we drink, to the Han River where otters have returned, and Cheonggyecheon where egrets land. We are now starting the real story of the water we carelessly pass by every day. 👍 If you enjoyed this video, please like and subscribe! 💬 Which company's water do you drink? Which one is older compared to the year you were born? Let us know in the comments! 🔔 Turn on notifications to be the first to see the next story. #TheCleanestWaterInTheWorld #31YearOldSamdasu #PrinciplesOfJejuGroundwaterFormation #WaterMadeByVolcanoes #911JejuSpringWaters #JejuHaenyeoUNESCO #HantanRiverGlobalGeopark #VanadiumMineralWater #WaterExportToWaterScarceCountries #KoreanTapWaterThatSurprisedForeigners 📚 References The information regarding the 31 years it takes for rainwater from Mt. Halla to become Samdasu is based on a report by the Kyunghyang Shinmun dated December 17, 2025, and a paper by the research team of the Jeju Development Corporation and Professor Yoon Sung-taek of Korea University published in the November 2025 issue of the international academic journal Journal of Hydrology. For the natural filtration function of volcanic scoria, mineral components including vanadium, and the results of 75 radioactive material tests conducted by the Korea Basic Science Institute following the Great East Japan Earthquake, references were made to the Jeju Special Self-Governing Province Development Corporation’s Samdasu Story and Samda Sodam webzine. For the geological formation principles of Jeju's water, a special feature report by the Jemini Ilbo was referenced, and for interviews with officials from the Jeju Groundwater Research Center, references were made to Planet 03. Statistics regarding the 911 springs in Jeju were based on data from the comprehensive survey of springs in Jeju and the Science Scent data from the Korea Institute of Science and Technology Information. For the inscription of Jeju Haenyeo culture as a UNESCO Intangible Cultural Heritage of Humanity in 2016 (Korea's 19th) and information regarding their diving methods, references were made to the Korean National Commission for UNESCO and Korea.net. For the formation principles of the crater lake at Baengnokdam and the legend of the white deer, references were made to the Encyclopedia of Korean Culture and materials related to scenic sites. The "water war" between Samdasu and Jeju Lava Water, as well as the conflict regarding domestic sales in Jeju Island, were based on reports from the JoongAng Ilbo, Maeil Business Newspaper, and Asia Business Newspaper. Samdasu's exports to 21 countries and its entry into the Indian market in 2022 were based on data from the Korea Economic Daily and the Jeju Development Corporation. The volcanic topography of the Hantan River, its 2020 UNESCO World Geopark certification, and the designation of the Pocheon Hantan River Basalt Gorge and Bidulginang Waterfall as Natural Monuments were referenced from the Cultural Heritage Administration's National Heritage Portal, the Korean National Commission for UNESCO, and the Hantan River World Geopark. The timing of the formation of the volcanic islands of Dokdo and Ulleungdo was based on data from the Northeast Asian History Foundation and the Dokdo Foundation. The active volcanic activity of Mt. Baekdu and observations of shallow earthquakes were based on reports from Dong-A Science, Science Times, and Sisa Journal. The information that Jeju was connected to the Korean Peninsula, China, and Kyushu, Japan by land during the Ice Age approximately 40,000 years ago was based on materials from the permanent exhibition at the National Je...