{"id":2759,"date":"2019-03-01T20:14:16","date_gmt":"2019-03-01T11:14:16","guid":{"rendered":"http:\/\/163.180.4.222\/lab\/?p=2759"},"modified":"2019-03-02T13:22:01","modified_gmt":"2019-03-02T04:22:01","slug":"dna-replication-from-two-different-worlds","status":"publish","type":"post","link":"https:\/\/biochemistry.khu.ac.kr\/lab\/?p=2759","title":{"rendered":"How plastic wends its way to ocean garbage patches"},"content":{"rendered":"

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Wind and wave action drive the build-up of microplastics at remote ocean sites.<\/h5>\n

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\"Plastic<\/p>\n

Plastic bags float in the sea. Researchers have identified the currents and winds that cause plastic particles to accumulate at sites in the Arctic and elsewhere. Credit: Getty<\/p>\n

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Small pieces of floating plastic pose an increasing threat to marine species, but human-made microplastic particles are not distributed evenly throughout the seas.<\/p>\n

Victor Onink at Utrecht University in the Netherlands and his colleagues used a model of ocean currents to investigate which physical processes control the accumulation of plastic particles in \u2018garbage patches\u2019 of the ocean. They found that wind-driven circulation of the upper ocean is responsible for the high concentration of plastic debris in certain regions of the subtropical North Pacific and North Atlantic oceans.<\/p>\n

By contrast, the team found that wave movement, another component of large-scale ocean circulation, seems to increase the amount of microplastic reaching the remote Arctic Ocean. Because some particle-transport models still don\u2019t account for wave-induced drift, plastic pollution in the Arctic might be worse than commonly estimated, the scientists say.<\/p>\n

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JGR Oceans<\/i>\u00a0(2019)<\/a><\/p>\n<\/div>\n

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(\uc6d0\ubb38: \uc5ec\uae30<\/a>\ub97c \ud074\ub9ad\ud558\uc138\uc694~)<\/p>\n

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    Wind and wave action drive the build-up of microplastics at remote ocean sites.   Plastic bags float in the sea. Researchers have identified(more…)<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[36,29,30],"tags":[],"class_list":["post-2759","post","type-post","status-publish","format-standard","hentry","category-lets-do-physics","category-lets-do-science","category-recent-science-news"],"aioseo_notices":[],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack-related-posts":[{"id":3245,"url":"https:\/\/biochemistry.khu.ac.kr\/lab\/?p=3245","url_meta":{"origin":2759,"position":0},"title":"Things we know and don\u2019t know about nanoplastic in the environment","author":"biochemistry","date":"April 8, 2019","format":false,"excerpt":"\u00a0 \u00a0 Fragments of plastic smaller than 1 \u03bcm have raised concerns about the potential risks they pose to the environment. 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Through their intrinsic properties, plastic materials have found ubiquitous application in building and construction, electronics, automotive design, a myriad of health applications, packaging, paints and coatings, adhesives\u2026","rel":"","context":"In "Essays on Science"","block_context":{"text":"Essays on Science","link":"https:\/\/biochemistry.khu.ac.kr\/lab\/?cat=32"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":2602,"url":"https:\/\/biochemistry.khu.ac.kr\/lab\/?p=2602","url_meta":{"origin":2759,"position":3},"title":"A \ufeffrobotic vine that can coil itself around the real thing","author":"biochemistry","date":"January 30, 2019","format":false,"excerpt":"\u00a0 \u00a0 A slim robotic arm (silver) winds around the stem of a blue passion flower. 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Such materials could form the basis of future refrigeration technologies. \u00a0 Materials known as plastic crystals are composed of molecules that interact through weak long-range forces. As a\u2026","rel":"","context":"In "Let's Do Chemistry!"","block_context":{"text":"Let's Do Chemistry!","link":"https:\/\/biochemistry.khu.ac.kr\/lab\/?cat=34"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":951,"url":"https:\/\/biochemistry.khu.ac.kr\/lab\/?p=951","url_meta":{"origin":2759,"position":5},"title":"To make plastic, just add blood","author":"biochemistry","date":"June 25, 2018","format":false,"excerpt":"\u00a0 \u00a0 (\uc6d0\ubb38) \u00a0 \u00a0 \u00a0 Red blood cells contain the iron-based molecule haemoglobin, which has now been harnessed to synthesize plastic. 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