{"id":13115,"date":"2021-07-13T14:04:42","date_gmt":"2021-07-13T17:04:42","guid":{"rendered":"https:\/\/mindthegraph.com\/blog\/?p=13115"},"modified":"2023-01-05T14:27:25","modified_gmt":"2023-01-05T17:27:25","slug":"plastic-pollution-are-microplastics-contaminants-an-emerging-concern","status":"publish","type":"post","link":"https:\/\/mindthegraph.com\/blog\/lv\/plastmasas-piesarnojums-ir-mikroplastmasa-piesarnojums-ir-jaundosas-bazas\/","title":{"rendered":"Plastmasas pies\u0101r\u0146ojums: Vai mikroplastmasa pies\u0101r\u0146ot\u0101ji rada jaunas ba\u017eas?"},"content":{"rendered":"

Kop\u0161 p\u0113tnieki atkl\u0101ja mikroplastmasas b\u012bstam\u012bbu, ir pag\u0101ju\u0161i gandr\u012bz 20 gadi - liel\u0101k\u0101 da\u013ca p\u0113t\u012bjumu ir velt\u012bti j\u016bras dz\u012bvajiem organismiem. <\/p>\n\n\n\n

Jebkuru plastmasas fragmentu, kas ir maz\u0101ks par 5 milimetriem, sauc par mikroplastmasu.<\/p>\n\n\n\n

Mikroplastmasas p\u0113tniec\u012bbas s\u0101kum\u0101 p\u0113tnieki galvenok\u0101rt str\u0101d\u0101ja ar mikrokr\u016bkl\u0101m un neapstr\u0101d\u0101tas plastmasas granul\u0101m, kuras nevar\u0113ja noform\u0113t produktos, tostarp lielu atl\u016bzu gabaliem vai sapl\u0113st\u0101m pudel\u0113m, kas l\u0113ni boj\u0101j\u0101s.<\/p>\n\n\n\n

P\u0101rbaudiet Mind the Graph Galerija<\/a> ilustr\u0101cijas, kas saist\u012btas ar \u0161\u012b bloga ieraksta t\u0113mu. Noklik\u0161\u0137iniet uz att\u0113la zem\u0101k!<\/p>\n\n\n\n

\"Mind<\/a><\/figure>\n\n\n\n

\u0160ie pies\u0101r\u0146ot\u0101ji izskalo upes un pies\u0101r\u0146o oke\u0101nus. Okeanogr\u0101fi l\u0113\u0161, ka Zemes virszemes \u016bde\u0146os ir no 15 l\u012bdz 51 triljonam plastmasas da\u013ci\u0146u.<\/p>\n\n\n\n

Vair\u0101ki simti p\u0113t\u012bjumu atkl\u0101j mikroplastmasas kl\u0101tb\u016btni \u016bdens organismos. Turkl\u0101t kop\u0161 t\u0101 laika ir identific\u0113ti daudzi mikroplastmasas avoti, piem\u0113ram, plastmasas da\u013ci\u0146as, ko p\u0101rn\u0113s\u0101 transportl\u012bdzek\u013ci uz ce\u013ciem, un sint\u0113tisk\u0101s \u0161\u0137iedras, kas izdal\u0101s no ap\u0123\u0113rba. <\/p>\n\n\n\n

Turkl\u0101t cilv\u0113ki norij vai ieelpo plastmasu no neidentific\u0113tiem avotiem, jo atkritumi p\u016b\u0161 starp j\u016bru un sauszemi. Svar\u012bgi ir ar\u012b noteikt, vai s\u012bkiem plastmasas gabali\u0146iem ir k\u0101da negat\u012bva ietekme uz cilv\u0113kiem vai dz\u012bvniekiem. <\/p>\n\n\n\n

M\u0113rot pies\u0101r\u0146ojuma iedarb\u012bbu, vides regulatori sper pirmo soli, lai kvantitat\u012bvi noteiktu vesel\u012bbas apdraud\u0113jumu. \u0145emot v\u0113r\u0101 mikroplastmasas koncentr\u0101cijas pieaugumu un citus trauc\u0113jumus, ko var izrais\u012bt j\u016bras produktu lieto\u0161ana uztur\u0101, tas ir iemesls liel\u0101m ba\u017e\u0101m un jauniem notikumiem elpo\u0161anas probl\u0113mu gad\u012bjumos.<\/p>\n\n\n\n

K\u0101 tie\u0161i kait\u0113 mikroplastmasa?<\/strong><\/h2>\n\n\n\n

\u0160o plastmasas da\u013ci\u0146u ra\u0161an\u0101s c\u0113lo\u0146i un ietekme ir vair\u0101ku p\u0113t\u012bjumu temats. Atkar\u012bb\u0101 no to lieluma vai sp\u0113jas iek\u013c\u016bt audos vai \u0161\u016bn\u0101s t\u0101s var izrais\u012bt kairin\u0101jumu jau ar savu kl\u0101tb\u016btni.<\/p>\n\n\n\n

Visliel\u0101k\u0101s ba\u017eas p\u0113tniekiem rada nanoplastmasa - s\u012bk\u0101k\u0101s da\u013ci\u0146as, kuru diametrs ir liel\u0101ks par mikrometru. Ja mikroplastmasas \u0137\u012bmisk\u0101 toksiskuma d\u0113\u013c rodas k\u0101da negat\u012bva ietekme, t\u0101m parasti ir liel\u0101ks izm\u0113rs.<\/p>\n\n\n\n

Daudzas plastmasas ra\u017eo\u0161an\u0101 izmantot\u0101s piedevas apdraud vesel\u012bbu, jo negat\u012bvi ietekm\u0113 endokr\u012bno sist\u0113mu. Tom\u0113r tiek p\u0113t\u012bti daudzi faktori, lai saprastu, k\u0101 mikroplastmasa tiek uz\u0146emta un cik ilg\u0101 laik\u0101 izpau\u017eas t\u0101s ietekme uz organismu.<\/p>\n\n\n\n

P\u0113t\u012bjumi tie\u0161i ar cilv\u0113kiem ir ierobe\u017eoti, un \u0161ie p\u0113t\u012bjumi ir non\u0101ku\u0161i uzman\u012bbas lok\u0101, lai gan vien\u012bgie pieejamie p\u0113t\u012bjumi izmanto laboratorijas eksperimentus, kuros \u0161\u016bnas un cilv\u0113ka audi tiek pak\u013cauti mikroplastmasas iedarb\u012bbai, vai p\u0113t\u012bjumus ar dz\u012bvniekiem, kuros iesaist\u012bti grauz\u0113ji.<\/p>\n\n\n\n

Mikroplastmasas kait\u0113jums j\u016bras videi<\/strong><\/h2>\n\n\n\n
\"persona<\/a>
Att\u0113lu avots<\/em>: Unsplash<\/a> l\u012bdz Brian Yurasits<\/a><\/figcaption><\/figure>\n\n\n\n

Ja run\u0101jam par j\u016bras organismiem, visredzam\u0101kais veids, k\u0101 plastmasa var tiem kait\u0113t, ir tas, ka tie norij s\u012bkas plastmasas da\u013ci\u0146as, kas nesniedz daudz bar\u012bbas vielu, lai izdz\u012bvotu. Sav\u0101 p\u0113t\u012bjum\u0101 Lin\u010da, kas vada J\u016bras atkritumu p\u0113tniec\u012bbas centrs<\/a> vietn\u0113 Havaju Klus\u0101 oke\u0101na universit\u0101te<\/a> Honolulu, p\u0113t\u012bja plastmasas un citu \u0137\u012bmisko vielu saturu pludmal\u0113s atrasto beigto j\u016bras bru\u0146urupu\u010du iek\u0161\u0113jos org\u0101nos.<\/p>\n\n\n\n

Vi\u0146as komanda veica virkni anal\u012b\u017eu par devi\u0146iem mazu\u013ciem, kas 2020. gad\u0101 bija jaun\u0101ki par trim ned\u0113\u013c\u0101m. Lai gan viens no tiem bija tikai 9 centimetrus gar\u0161, vi\u0146a ku\u0146\u0123a un zarnu trakt\u0101 bija 42 plastmasas gabali\u0146i. Liel\u0101k\u0101 da\u013ca no tiem bija mikroplastmasa.<\/p>\n\n\n\n

Lai gan netiek uzskat\u012bts, ka mikroplastmasa ir galvenais n\u0101ves c\u0113lonis, t\u0101 joproj\u0101m ir \u0101rk\u0101rt\u012bgi svar\u012bga probl\u0113ma. Turkl\u0101t daudzi vado\u0161ie zin\u0101tnieki ir veiku\u0161i da\u017e\u0101dus atkl\u0101jumus saist\u012bb\u0101 ar mikroplastmasu un j\u016bras organismiem.<\/p>\n\n\n\n

K\u0101 alternat\u012bvu sf\u0113r\u0101m zin\u0101tnieki tagad izmanto \u0161\u0137iedras vai plastmasas fragmentus, kas ir re\u0101listisk\u0101ki vides apst\u0101k\u013ciem. Daudzi test\u0113\u0161anas paraugi ir p\u0101rkl\u0101ti ar \u0137\u012bmisk\u0101m viel\u0101m, kas ir l\u012bdz\u012bgas biopl\u0113vei, kas palielina varb\u016bt\u012bbu, ka dz\u012bvnieki tos ap\u0113d\u012bs. \u0160\u0101d\u0101 veid\u0101 ir notiku\u0161as pozit\u012bvas p\u0101rmai\u0146as mikroplastmasas kait\u012bguma atz\u012b\u0161an\u0101.<\/p>\n\n\n\n

Pa\u0161laik p\u0113tnieki uzskata, ka mikroplastmasas un nanoplastmasas koncentr\u0101cija nav pietiekama, lai ietekm\u0113tu cilv\u0113ka vesel\u012bbu. Tom\u0113r paredzams, ka to skaits pieaugs.<\/p>\n\n\n\n

Ja m\u0113s p\u0101riesim uz ilgtsp\u0113j\u012bgu dz\u012bvesveidu un samazin\u0101sim toksisko atkritumu izme\u0161anu j\u016br\u0101, m\u0113s joproj\u0101m varam kontrol\u0113t \u0161o probl\u0113mu.<\/p>\n\n\n\n

S\u012bk\u0101ku raksta aprakstu skat\u012bt zem\u0101k nor\u0101d\u012btaj\u0101 DOI.<\/p>\n\n\n\n

Lim, X. (2021). Mikroplastmasa ir visur, bet vai t\u0101 ir kait\u012bga? https:\/\/doi.org\/10.1038\/d41586-021-01143-3.<\/a><\/p>\n\n\n\n

<\/p>\n\n\n\n

Ilustr\u0101cijas par plastmasu un j\u016bru skatiet Mind the Graph galerij\u0101.<\/p>","protected":false},"excerpt":{"rendered":"

Kop\u0161 p\u0113tnieki atkl\u0101ja mikroplastmasas b\u012bstam\u012bbu, ir pag\u0101ju\u0161i gandr\u012bz 20 gadi - liel\u0101k\u0101 da\u013ca p\u0113t\u012bjumu ir velt\u012bti j\u016bras dz\u012bvajiem organismiem. Par mikroplastmasu sauc jebkuru plastmasas fragmentu, kas ir maz\u0101ks par 5 milimetriem. Mikroplastmasas izp\u0113tes s\u0101kum\u0101 p\u0113tnieki galvenok\u0101rt p\u0113t\u012bja mikrokr\u016bkl\u012btes un neapstr\u0101d\u0101tas plastmasas granulas, kuras nevar\u0113ja iestr\u0101d\u0101t izstr\u0101d\u0101jumos, [...].<\/p>","protected":false},"author":18,"featured_media":13119,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[959,28],"tags":[554],"yoast_head":"\nPlastic Pollution: Are Microplastic Contaminants a Concern? - MTG<\/title>\n<meta name=\"description\" content=\"Besides the presence of microplastics in aquatic organisms, researchers estimate 15 trillion particles of plastic in the ocean.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/mindthegraph.com\/blog\/lv\/plastmasas-piesarnojums-ir-mikroplastmasa-piesarnojums-ir-jaundosas-bazas\/\" \/>\n<meta property=\"og:locale\" content=\"lv_LV\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Plastic pollution: Are microplastics contaminants an emerging concern?\" \/>\n<meta property=\"og:description\" content=\"Besides the presence of microplastics in aquatic organisms, researchers estimate 15 trillion particles of plastic in the ocean.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/mindthegraph.com\/blog\/lv\/plastmasas-piesarnojums-ir-mikroplastmasa-piesarnojums-ir-jaundosas-bazas\/\" \/>\n<meta property=\"og:site_name\" content=\"Mind the Graph Blog\" \/>\n<meta property=\"article:published_time\" content=\"2021-07-13T17:04:42+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-01-05T17:27:25+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2021\/07\/post-plastic-pollution-facebook.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"628\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Bruna Soldera\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"Plastic pollution: Are microplastics contaminants an emerging concern?\" \/>\n<meta name=\"twitter:description\" content=\"Besides the presence of microplastics in aquatic organisms, researchers estimate 15 trillion particles of plastic in the ocean.\" \/>\n<meta name=\"twitter:image\" content=\"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2021\/07\/post-plastic-pollution-twitter.jpg\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Bruna Soldera\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Plastic Pollution: Are Microplastic Contaminants a Concern? 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