{"id":4643,"date":"2021-02-24T06:53:35","date_gmt":"2021-02-24T05:53:35","guid":{"rendered":"https:\/\/www.enviblog.cz\/blog\/?p=4643"},"modified":"2021-02-24T07:48:05","modified_gmt":"2021-02-24T06:48:05","slug":"saharsky-pisek-opet-nad-uzemim-ceske-republiky","status":"publish","type":"post","link":"https:\/\/www.enviblog.cz\/blog\/2021\/02\/24\/saharsky-pisek-opet-nad-uzemim-ceske-republiky\/","title":{"rendered":"Saharsk\u00fd p\u00edsek op\u011bt nad \u00fazem\u00edm \u010cesk\u00e9 republiky"},"content":{"rendered":"<p>V<em><strong> prvn\u00edm \u00fanorov\u00e9m t\u00fddnu p\u0159e\u0161el p\u0159es \u00fazem\u00ed \u010cesk\u00e9 republiky saharsk\u00fd p\u00edsek. Zaj\u00edmav\u00e9 v tomto p\u0159\u00edpad\u011b bylo, \u017ee v tu dobu na\u0161e \u00fazem\u00ed bylo relativn\u011b zasn\u011b\u017een\u00e9, a tak bylo zbarven\u00ed sn\u011bhu na prvn\u00ed pohled patrn\u00e9. Saharsk\u00fd p\u00edsek v\u0161ak p\u0159es \u010desk\u00e9 \u00fazem\u00ed p\u0159e\u0161el v\u010dera op\u011bt &#8211; vid\u011bt to bylo jak na dru\u017eicov\u00fdch sn\u00edmc\u00edch, tak na map\u00e1ch reprezentuj\u00edc\u00edch kvalitu ovzdu\u0161\u00ed prost\u0159ednictv\u00edm koncentrac\u00ed suspendovan\u00fdch (prachov\u00fdch) \u010d\u00e1stic PM<sub>10<\/sub>.\u00a0<\/strong><\/em><\/p>\n<p>Saharsk\u00fd p\u00edsek byl na \u00fazem\u00ed \u010cR nejv\u00edce patrn\u00fd kolem 7. \u00fanora. Lid\u00e9 na soci\u00e1ln\u00edch s\u00edt\u00edch sd\u00edleli \u0159adu fotek b\u00edl\u00e9ho sn\u011bhu pokryt\u00e9ho b\u00e9\u017eovou, oran\u017eovou \u010di nahn\u011bdlou vrstvi\u010dkou saharsk\u00e9ho p\u00edsku. \u00dazem\u00ed \u010cesk\u00e9 republiky v\u0161ak nebylo zdaleka jedin\u00e9, kde se v prvn\u00edm \u00fanorov\u00e9m t\u00fddnu saharsk\u00fd p\u00edsek objevil. Je\u0161t\u011b v\u00fdrazn\u011bji to bylo nap\u0159\u00edklad v oblasti jihoz\u00e1padn\u00ed Evropy.<\/p>\n<p>V\u00fdrazn\u011bji se p\u0159echod saharsk\u00e9ho p\u00edsku projevuje nap\u0159\u00edklad pokud b\u011bhem p\u0159echodu pr\u0161\u00ed a \u010d\u00e1stice se smyj\u00ed z ovzdu\u0161\u00ed na zem. D\u00e9\u0161\u0165 pak m\u016f\u017ee m\u00edt barevn\u00fd n\u00e1dech a objekty na zemi mohou b\u00fdt v\u00fdrazn\u011bji zne\u010di\u0161t\u011bn\u00e9.<\/p>\n<p>Je t\u0159eba \u0159\u00edci, \u017ee se nejedn\u00e1 o jev \u010dast\u00fd, ale sp\u00ed\u0161e v\u00fdjime\u010dn\u00fd. Jemn\u00fd p\u00edsek a prach se na \u00fazem\u00ed Afriky p\u0159i vy\u0161\u0161\u00edch rychlostech proud\u011bn\u00ed m\u016f\u017ee zv\u00ed\u0159it a vzestupn\u00fdm proud\u011bn\u00edm dostat do st\u0159edn\u00ed vrstvy troposf\u00e9ry a n\u00e1sledn\u011b se v\u00fd\u0161kov\u00fdm proud\u011bn\u00edm \u0161\u00ed\u0159it na velk\u00e9 vzd\u00e1lenosti v z\u00e1vislosti nap\u0159\u00edklad na sm\u011bru \u010di rychlosti v\u011btru.<\/p>\n<p>A\u010dkoliv nen\u00ed tento p\u00edsek nijak nebezpe\u010dn\u00fd, m\u016f\u017ee v d\u016fsledku jeho p\u0159echodu doch\u00e1zet ke zhor\u0161en\u00ed kvality ovzdu\u0161\u00ed, projevuj\u00edc\u00ed se zv\u00fd\u0161en\u00edm koncentrac\u00ed suspendovan\u00fdch (prachov\u00fdch) \u010d\u00e1stic.<\/p>\n<h3>Saharsk\u00fd p\u00edsek 22. &#8211; 23. \u00fanora<\/h3>\n<p>Ji\u017e na konci minul\u00e9ho t\u00fddne to dle model\u016f vypadalo, \u017ee by p\u0159es \u010ceskou republiku znovu mohl p\u0159ej\u00edt p\u00edsek ze Sahary.<\/p>\n<blockquote class=\"twitter-tweet\">\n<p dir=\"ltr\" lang=\"cs\">Jak ukazuj\u00ed modelov\u00e9 v\u00fdstupy <a href=\"https:\/\/twitter.com\/CopernicusECMWF?ref_src=twsrc%5Etfw\">@CopernicusECMWF<\/a> , p\u0159es \u010cR by v n\u00e1sleduj\u00edc\u00edch dnech op\u011bt mohl p\u0159ej\u00edt jemn\u00fd saharsk\u00fd p\u00edsek. N\u00ed\u017ee uveden\u00fd obr\u00e1zek ilustruje modelov\u00fd v\u00fdstup pro ned\u011bli a pond\u011bl\u00ed. P\u0159edpov\u011b\u010f se ale je\u0161t\u011b m\u016f\u017ee m\u011bnit. <a href=\"https:\/\/twitter.com\/hashtag\/klima?src=hash&amp;ref_src=twsrc%5Etfw\">#klima<\/a> <a href=\"https:\/\/twitter.com\/hashtag\/po%C4%8Das%C3%AD?src=hash&amp;ref_src=twsrc%5Etfw\">#po\u010das\u00ed<\/a> <a href=\"https:\/\/twitter.com\/hashtag\/Sahara?src=hash&amp;ref_src=twsrc%5Etfw\">#Sahara<\/a> <a href=\"https:\/\/twitter.com\/hashtag\/p%C3%ADsek?src=hash&amp;ref_src=twsrc%5Etfw\">#p\u00edsek<\/a> <a href=\"https:\/\/twitter.com\/hashtag\/PM10?src=hash&amp;ref_src=twsrc%5Etfw\">#PM10<\/a> <a href=\"https:\/\/twitter.com\/CHMUCHMI?ref_src=twsrc%5Etfw\">@CHMUCHMI<\/a> <a href=\"https:\/\/t.co\/pp6iNMYhJi\">pic.twitter.com\/pp6iNMYhJi<\/a><\/p>\n<p>\u2014 J\u00e1chym Brzezina (@Jachym) <a href=\"https:\/\/twitter.com\/Jachym\/status\/1362738949282791439?ref_src=twsrc%5Etfw\">February 19, 2021<\/a><\/p><\/blockquote>\n<p><script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script><\/p>\n<blockquote class=\"twitter-tweet\">\n<p dir=\"ltr\" lang=\"cs\">Podle v\u00fdstupu model\u016f to st\u00e1le vypad\u00e1, \u017ee by p\u0159es \u010cR m\u011bl v \u00fater\u00fd p\u0159ej\u00edt jemn\u00fd saharsk\u00fd p\u00edsek. Vlevo barcelonsk\u00fd model, vpravo v\u00fdstup <a href=\"https:\/\/twitter.com\/hashtag\/CAMS?src=hash&amp;ref_src=twsrc%5Etfw\">#CAMS<\/a>, oba pro \u00fater\u00fd 15 h. <a href=\"https:\/\/twitter.com\/hashtag\/po%C4%8Das%C3%AD?src=hash&amp;ref_src=twsrc%5Etfw\">#po\u010das\u00ed<\/a> <a href=\"https:\/\/twitter.com\/hashtag\/ovzdu%C5%A1%C3%AD?src=hash&amp;ref_src=twsrc%5Etfw\">#ovzdu\u0161\u00ed<\/a> <a href=\"https:\/\/twitter.com\/hashtag\/Sahara?src=hash&amp;ref_src=twsrc%5Etfw\">#Sahara<\/a> <a href=\"https:\/\/t.co\/54NjpbQKCG\">pic.twitter.com\/54NjpbQKCG<\/a><\/p>\n<p>\u2014 J\u00e1chym Brzezina (@Jachym) <a href=\"https:\/\/twitter.com\/Jachym\/status\/1363852676086325255?ref_src=twsrc%5Etfw\">February 22, 2021<\/a><\/p><\/blockquote>\n<p>Jak se nakonec uk\u00e1zalo, tato p\u0159edpov\u011b\u010f se tentokr\u00e1t velmi dob\u0159e naplnila. Je\u0161t\u011b v \u00fater\u00fd kolem poledne vypadala mapa hodinov\u00fdch koncentrac\u00ed PM<sub>10<\/sub> n\u00e1sledovn\u011b.<\/p>\n<figure id=\"attachment_4645\" aria-describedby=\"caption-attachment-4645\" style=\"width: 872px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/chmibrno.org\/blog\/wp-content\/uploads\/2021\/02\/2021-02-23-11.png\"><img fetchpriority=\"high\" decoding=\"async\" class=\"wp-image-4645 size-full\" src=\"https:\/\/chmibrno.org\/blog\/wp-content\/uploads\/2021\/02\/2021-02-23-11.png\" alt=\"\" width=\"872\" height=\"568\" srcset=\"https:\/\/www.enviblog.cz\/blog\/wp-content\/uploads\/2021\/02\/2021-02-23-11.png 872w, https:\/\/www.enviblog.cz\/blog\/wp-content\/uploads\/2021\/02\/2021-02-23-11-300x195.png 300w, https:\/\/www.enviblog.cz\/blog\/wp-content\/uploads\/2021\/02\/2021-02-23-11-768x500.png 768w\" sizes=\"(max-width: 872px) 100vw, 872px\" \/><\/a><figcaption id=\"caption-attachment-4645\" class=\"wp-caption-text\"><em>Pr\u016fm\u011brn\u00e9 hodinov\u00e9 koncentrace PM<sub>10<\/sub> 23. 2. 12-13 h. Zdroj: \u010cHM\u00da<\/em><\/figcaption><\/figure>\n<p>Na v\u011bt\u0161in\u011b \u00fazem\u00ed s v\u00fdjimkou nejv\u011bt\u0161\u00edch m\u011bst byly hodnoty pr\u016fm\u011brn\u00e9 hodinov\u00e9 koncentrace n\u011bkde mezi 20 a 40 \u03bcg.m<sup>-3<\/sup> (zelen\u00e1 barva). Dle p\u016fvodn\u00ed p\u0159edpov\u011bdi se m\u011bl p\u0159echod saharsk\u00e9ho p\u00edsku za\u010d\u00edt v\u00fdrazn\u011bji projevovat v odpoledn\u00edch hodin\u00e1ch. Jak se n\u00e1sledn\u011b uk\u00e1zalo, p\u0159ibli\u017en\u011b od 14 h se opravdu koncentrace \u010d\u00e1stic PM<sub>10<\/sub> za\u010daly postupn\u011b zvy\u0161ovat, a to plo\u0161n\u011b na cel\u00e9m \u00fazem\u00ed \u010cesk\u00e9 republiky &#8211; nejd\u0159\u00edve v \u010cech\u00e1ch, n\u00e1sledn\u011b v pozdn\u00edch odpoledn\u00edch hodin\u00e1ch i na Morav\u011b. Od 21. hodiny ve\u010dern\u00ed se situace zase za\u010dala postupn\u011b zlep\u0161ovat &#8211; nejd\u0159\u00edve op\u011bt v z\u00e1padn\u00edch \u010cech\u00e1ch, n\u00e1sledn\u011b se koncentrace PM<sub>10<\/sub> sni\u017eovaly i v dal\u0161\u00edch regionech.<\/p>\n<p>V\u00fdvoj pr\u016fm\u011brn\u00fdch hodinov\u00fdch koncentrac\u00ed PM<sub>10<\/sub> ukazuje n\u00e1sleduj\u00edc\u00ed animovan\u00e1 mapa pr\u016fb\u011bhu t\u011bchto hodnot b\u011bhem odpoledne, ve\u010dera a noci z 23. na 24. \u00fanora 2021.<\/p>\n<figure id=\"attachment_4649\" aria-describedby=\"caption-attachment-4649\" style=\"width: 860px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/chmibrno.org\/blog\/wp-content\/uploads\/2021\/02\/cz_PM10-1h.gif\"><img decoding=\"async\" class=\"wp-image-4649 size-full\" src=\"https:\/\/chmibrno.org\/blog\/wp-content\/uploads\/2021\/02\/cz_PM10-1h.gif\" alt=\"\" width=\"860\" height=\"548\" \/><\/a><figcaption id=\"caption-attachment-4649\" class=\"wp-caption-text\"><em>V\u00fdvoj pr\u016fm\u011brn\u00fdch hodinov\u00fdch koncentrac\u00ed PM<sub>10<\/sub> od 23. 2. 11 h, do 24. 2. 5 h. Zdroj: \u010cHM\u00da<\/em><\/figcaption><\/figure>\n<p>&nbsp;<\/p>\n<p>Zaj\u00edmav\u00fd je tak\u00e9 pohled na mapu pr\u016fm\u011brn\u00fdch hodinov\u00fdch koncentrac\u00ed jin\u00fdch zne\u010di\u0161\u0165uj\u00edc\u00edch l\u00e1tek. Nap\u0159\u00edklad p\u0159i vlivu teplotn\u00edch inverz\u00ed, doch\u00e1z\u00ed ke zv\u00fd\u0161en\u00ed koncentrac\u00ed v\u011bt\u0161iny zne\u010di\u0161\u0165uj\u00edc\u00edch l\u00e1tek, jeliko\u017e vrstva teplej\u0161\u00edho vrstvu nad povrchem p\u016fsob\u00ed jako pokli\u010dka, vlivem kter\u00e9 se zne\u010di\u0161\u0165uj\u00edc\u00ed l\u00e1tky kumuluj\u00ed u povrchu. Kdy\u017e se v\u0161ak pod\u00edv\u00e1me na mapu pr\u016fm\u011brn\u00fdch hodinov\u00fdch koncentrac\u00ed NO<sub>2<\/sub>, \u017e\u00e1dn\u00e9 plo\u0161n\u00e9 zvy\u0161ov\u00e1n\u00ed koncentrac\u00ed zde patrn\u00e9 nen\u00ed. V\u011bt\u0161ina \u00fazem\u00ed na t\u00e9to map\u011b je pokryta modrou barvou, kter\u00e1 v tomto p\u0159\u00edpad\u011b reprezentuje nejlep\u0161\u00ed stupe\u0148 kvality ovzdu\u0161\u00ed. M\u00edrn\u011b zv\u00fd\u0161en\u00e9 byly koncentrace pouze ve velk\u00fdch m\u011bstech, co\u017e je standardn\u00ed stav vzhledem k faktu, \u017ee na rozd\u00edl od suspendovan\u00fdch (prachov\u00fdch) \u010d\u00e1stic, hlavn\u00edm zdrojem oxidu dusi\u010dit\u00e9ho, pota\u017emo oxid\u016f dus\u00edku, v \u010cesk\u00e9 republice je doprava. Nejvy\u0161\u0161\u00ed hodnoty jsou tedy pozorov\u00e1ny pravideln\u011b na dopravn\u00edch stanic\u00edch a ve m\u011bstech obecn\u011b.<\/p>\n<figure id=\"attachment_4646\" aria-describedby=\"caption-attachment-4646\" style=\"width: 874px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/chmibrno.org\/blog\/wp-content\/uploads\/2021\/02\/2021-02-23-15.png\"><img decoding=\"async\" class=\"wp-image-4646 size-full\" src=\"https:\/\/chmibrno.org\/blog\/wp-content\/uploads\/2021\/02\/2021-02-23-15.png\" alt=\"\" width=\"874\" height=\"560\" srcset=\"https:\/\/www.enviblog.cz\/blog\/wp-content\/uploads\/2021\/02\/2021-02-23-15.png 874w, https:\/\/www.enviblog.cz\/blog\/wp-content\/uploads\/2021\/02\/2021-02-23-15-300x192.png 300w, https:\/\/www.enviblog.cz\/blog\/wp-content\/uploads\/2021\/02\/2021-02-23-15-768x492.png 768w\" sizes=\"(max-width: 874px) 100vw, 874px\" \/><\/a><figcaption id=\"caption-attachment-4646\" class=\"wp-caption-text\"><em>Mapa pr\u016fm\u011brn\u00fdch hodinov\u00fdch koncentrac\u00ed oxidu dusi\u010dit\u00e9ho (NO<sub>2<\/sub>) v \u010cR, 23. 2. 2021 mezi 15. a 16. hodinou SEL\u010c. Zdroj: \u010cHM\u00da<\/em><\/figcaption><\/figure>\n<p>Posledn\u00edm d\u016fkazem je pak sn\u00edmek dru\u017eice EUMETSAT, kde jsou vysok\u00e9 koncentrace prachu zobrazeny r\u016f\u017eov\u00fdm odst\u00ednem. Ten je na sn\u00edmku z 23. 2. 2021, 20:00 SEL\u010c patrn\u00fd nad \u010ceskou republikou, ale tak\u00e9 jej\u00edm okol\u00edm ve v\u00fdchodn\u00edm, z\u00e1padn\u00edm a ji\u017en\u00edm sm\u011bru.<\/p>\n<figure id=\"attachment_4647\" aria-describedby=\"caption-attachment-4647\" style=\"width: 1102px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/chmibrno.org\/blog\/wp-content\/uploads\/2021\/02\/4a7d1454-8fc4-4c5a-92d8-1575da86e745.png\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-4647 size-full\" src=\"https:\/\/chmibrno.org\/blog\/wp-content\/uploads\/2021\/02\/4a7d1454-8fc4-4c5a-92d8-1575da86e745.png\" alt=\"\" width=\"1102\" height=\"837\" srcset=\"https:\/\/www.enviblog.cz\/blog\/wp-content\/uploads\/2021\/02\/4a7d1454-8fc4-4c5a-92d8-1575da86e745.png 1102w, https:\/\/www.enviblog.cz\/blog\/wp-content\/uploads\/2021\/02\/4a7d1454-8fc4-4c5a-92d8-1575da86e745-300x228.png 300w, https:\/\/www.enviblog.cz\/blog\/wp-content\/uploads\/2021\/02\/4a7d1454-8fc4-4c5a-92d8-1575da86e745-1024x778.png 1024w, https:\/\/www.enviblog.cz\/blog\/wp-content\/uploads\/2021\/02\/4a7d1454-8fc4-4c5a-92d8-1575da86e745-768x583.png 768w\" sizes=\"(max-width: 1102px) 100vw, 1102px\" \/><\/a><figcaption id=\"caption-attachment-4647\" class=\"wp-caption-text\"><em>Sn\u00edmek z dru\u017eice EUMETSAT, 23. 2. 2021, 20 h SEL\u010c. Zdroj: EUMETSAT<\/em><\/figcaption><\/figure>\n<p>N\u00e1sleduj\u00edc\u00ed graf ukazuje p\u0159edb\u011b\u017en\u00e1 (operativn\u00ed) data v\u00fdvoje koncentrac\u00ed PM<sub>10<\/sub> na poza\u010fov\u00fdch stanic\u00edch v Brn\u011b. Poza\u010fov\u00e9 stanice reprezentuj\u00ed \u0161ir\u0161\u00ed okol\u00ed, a tedy plo\u0161n\u011bj\u0161\u00ed charakter zne\u010di\u0161t\u011bn\u00ed. Na grafu je patrn\u00fd n\u00e1r\u016fst koncentrac\u00ed PM<sub>10<\/sub> p\u0159ibli\u017en\u011b kolem poledne 23. 2. s kulminac\u00ed kolem p\u016flnoci a n\u00e1sledn\u00fd pokles. Hodnota 24h imisn\u00edho limitu pro PM<sub>10<\/sub> je 50 \u03bcg.m<sup>-3<\/sup>, a tato hodnota byla p\u0159edb\u011b\u017en\u011b 23. 2. p\u0159ekro\u010dena na stanici D\u011btsk\u00e1-nemocnice (51,3 \u03bcg.m<sup>-3<\/sup>) a p\u0159ekro\u010den\u00ed se velmi p\u0159ibl\u00ed\u017eila i poza\u010fov\u00e1 stanice Brno-L\u00e1ny (48,4 \u03bcg.m<sup>-3<\/sup>).<\/p>\n<figure id=\"attachment_4653\" aria-describedby=\"caption-attachment-4653\" style=\"width: 1387px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/chmibrno.org\/blog\/wp-content\/uploads\/2021\/02\/brnoSahara0221.png\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-4653 size-full\" src=\"https:\/\/chmibrno.org\/blog\/wp-content\/uploads\/2021\/02\/brnoSahara0221.png\" alt=\"\" width=\"1387\" height=\"815\" srcset=\"https:\/\/www.enviblog.cz\/blog\/wp-content\/uploads\/2021\/02\/brnoSahara0221.png 1387w, https:\/\/www.enviblog.cz\/blog\/wp-content\/uploads\/2021\/02\/brnoSahara0221-300x176.png 300w, https:\/\/www.enviblog.cz\/blog\/wp-content\/uploads\/2021\/02\/brnoSahara0221-1024x602.png 1024w, https:\/\/www.enviblog.cz\/blog\/wp-content\/uploads\/2021\/02\/brnoSahara0221-768x451.png 768w\" sizes=\"(max-width: 1387px) 100vw, 1387px\" \/><\/a><figcaption id=\"caption-attachment-4653\" class=\"wp-caption-text\"><em>V\u00fdvoj pr\u016fm\u011brn\u00fdch hodinov\u00fdch koncentrac\u00ed PM<sub>10<\/sub> na poza\u010fov\u00fdch stanic\u00edch v Brn\u011b od 23. 2. 1:00 do 24. 2. 5:00. Operativn\u00ed data. Zdroj: \u010cHM\u00da<\/em><\/figcaption><\/figure>\n<p>Podobn\u00fd v\u00fdvoj bylo mo\u017en\u00e9 pozorovat nap\u0159\u00edklad tak\u00e9 na poza\u010fov\u00fdch stanic\u00edch v Praze. Dle p\u0159edb\u011b\u017en\u00fdch dat byla zde hodnota 24h imisn\u00edho limitu p\u0159ekro\u010dena 23. 2. na stanic\u00edch Riegrovy sady (55,7 \u03bcg.m<sup>-3<\/sup>), Kobylisy (52,9 \u03bcg.m<sup>-3<\/sup>), Stod\u016flky (57,2 \u03bcg.m<sup>-3<\/sup>), n\u00e1m\u011bst\u00ed Republiky (57,6 \u03bcg.m<sup>-3<\/sup>) a \u0158eporyje (58,6 \u03bcg.m<sup>-3<\/sup>).<\/p>\n<figure id=\"attachment_4654\" aria-describedby=\"caption-attachment-4654\" style=\"width: 1467px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/chmibrno.org\/blog\/wp-content\/uploads\/2021\/02\/prahaSahara0221.png\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-4654 size-full\" src=\"https:\/\/chmibrno.org\/blog\/wp-content\/uploads\/2021\/02\/prahaSahara0221.png\" alt=\"\" width=\"1467\" height=\"744\" srcset=\"https:\/\/www.enviblog.cz\/blog\/wp-content\/uploads\/2021\/02\/prahaSahara0221.png 1467w, https:\/\/www.enviblog.cz\/blog\/wp-content\/uploads\/2021\/02\/prahaSahara0221-300x152.png 300w, https:\/\/www.enviblog.cz\/blog\/wp-content\/uploads\/2021\/02\/prahaSahara0221-1024x519.png 1024w, https:\/\/www.enviblog.cz\/blog\/wp-content\/uploads\/2021\/02\/prahaSahara0221-768x389.png 768w\" sizes=\"(max-width: 1467px) 100vw, 1467px\" \/><\/a><figcaption id=\"caption-attachment-4654\" class=\"wp-caption-text\"><em>V\u00fdvoj pr\u016fm\u011brn\u00fdch hodinov\u00fdch koncentrac\u00ed PM<sub>10<\/sub> na poza\u010fov\u00fdch stanic\u00edch v Praze od 23. 2. 1:00 do 24. 2. 5:00. Operativn\u00ed data. Zdroj: \u010cHM\u00da<\/em><\/figcaption><\/figure>\n<p>A\u010dkoliv to nem\u016f\u017eeme potvrdit s naprostou jistotou, vzhledem k plo\u0161n\u00e9mu charakteru zne\u010di\u0161t\u011bn\u00ed v\u010detn\u011b poza\u010fov\u00fdch stanic, dru\u017eicov\u00fdm sn\u00edmk\u016fm a p\u0159edpov\u011bdi se lze domn\u00edvat, \u017ee p\u0159\u00ed\u010dinou zv\u00fd\u0161en\u00ed byl alespo\u0148 \u010d\u00e1ste\u010dn\u011b p\u0159echod saharsk\u00e9ho p\u00edsku, by\u0165 nelze vylou\u010dit i vliv dal\u0161\u00edch faktor\u016f.<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>V prvn\u00edm \u00fanorov\u00e9m t\u00fddnu p\u0159e\u0161el p\u0159es \u00fazem\u00ed \u010cesk\u00e9 republiky saharsk\u00fd p\u00edsek. Zaj\u00edmav\u00e9 v tomto p\u0159\u00edpad\u011b bylo, \u017ee v tu dobu na\u0161e \u00fazem\u00ed bylo relativn\u011b zasn\u011b\u017een\u00e9, a tak bylo zbarven\u00ed sn\u011bhu na prvn\u00ed pohled patrn\u00e9. Saharsk\u00fd p\u00edsek v\u0161ak p\u0159es \u010desk\u00e9 \u00fazem\u00ed p\u0159e\u0161el v\u010dera op\u011bt &#8211; vid\u011bt to bylo jak na dru\u017eicov\u00fdch sn\u00edmc\u00edch, tak na map\u00e1ch reprezentuj\u00edc\u00edch [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":4649,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_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","enabled":false},"version":2}},"categories":[5],"tags":[176,82,227],"coauthors":[19],"class_list":["post-4643","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ovzdusi","tag-pisek","tag-pm10","tag-sahara","entry","has-media"],"jetpack_publicize_connections":[],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/www.enviblog.cz\/blog\/wp-content\/uploads\/2021\/02\/cz_PM10-1h.gif","jetpack_shortlink":"https:\/\/wp.me\/pa1A1I-1cT","_links":{"self":[{"href":"https:\/\/www.enviblog.cz\/blog\/wp-json\/wp\/v2\/posts\/4643","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.enviblog.cz\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.enviblog.cz\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.enviblog.cz\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.enviblog.cz\/blog\/wp-json\/wp\/v2\/comments?post=4643"}],"version-history":[{"count":9,"href":"https:\/\/www.enviblog.cz\/blog\/wp-json\/wp\/v2\/posts\/4643\/revisions"}],"predecessor-version":[{"id":4659,"href":"https:\/\/www.enviblog.cz\/blog\/wp-json\/wp\/v2\/posts\/4643\/revisions\/4659"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.enviblog.cz\/blog\/wp-json\/wp\/v2\/media\/4649"}],"wp:attachment":[{"href":"https:\/\/www.enviblog.cz\/blog\/wp-json\/wp\/v2\/media?parent=4643"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.enviblog.cz\/blog\/wp-json\/wp\/v2\/categories?post=4643"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.enviblog.cz\/blog\/wp-json\/wp\/v2\/tags?post=4643"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/www.enviblog.cz\/blog\/wp-json\/wp\/v2\/coauthors?post=4643"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}