{"id":1131,"date":"2018-10-11T13:19:13","date_gmt":"2018-10-11T11:19:13","guid":{"rendered":"https:\/\/www.enviblog.cz\/blog\/?p=1131"},"modified":"2018-10-11T13:19:13","modified_gmt":"2018-10-11T11:19:13","slug":"vysoke-koncentrace-suspendovanych-castic-na-stanici-brno-uvoz-hot-spot","status":"publish","type":"post","link":"https:\/\/www.enviblog.cz\/blog\/2018\/10\/11\/vysoke-koncentrace-suspendovanych-castic-na-stanici-brno-uvoz-hot-spot\/","title":{"rendered":"Vysok\u00e9 koncentrace suspendovan\u00fdch \u010d\u00e1stic na stanici Brno-\u00davoz (hot spot)"},"content":{"rendered":"<p><em><strong>M\u011bstsk\u00e1, dopravn\u00ed stanice Brno-\u00davoz (hot spot) pat\u0159\u00ed dlouhodob\u011b ke stanic\u00edm s nejvy\u0161\u0161\u00edmi m\u011b\u0159en\u00fdmi koncentracemi zne\u010di\u0161t\u011bn\u00ed v Brn\u011b. V posledn\u00ed dob\u011b jsou v\u0161ak tyto koncentrace neobvykle vysok\u00e9 i ve srovn\u00e1n\u00ed s jinak je\u0161t\u011b problemati\u010dt\u011bj\u0161\u00edmi stanicemi. Pro\u010d do\u0161lo k tak n\u00e1hl\u00e9mu zhor\u0161en\u00ed?<\/strong><\/em><\/p>\n<p>Automatick\u00e1 dopravn\u00ed stanice Brno-\u00davoz (hot spot) le\u017e\u00ed p\u0159\u00edmo vedle velmi frekventovan\u00e9 k\u0159i\u017eovatky ulic \u00davoz a \u00dadoln\u00ed. Nav\u00edc je tato k\u0159i\u017eovatka obklopena vysokou z\u00e1stavbou a le\u017e\u00ed v kotlin\u011b, proto je zde zhor\u0161en\u00e1 cirkulace vzduchu a zne\u010di\u0161t\u011bn\u00ed se zde m\u016f\u017ee kumulovat. Ozna\u010den\u00ed &#8222;hot spot&#8220; (jak jste se mohli dozv\u011bd\u011bt v na\u0161em ned\u00e1vn\u00e9m kv\u00edzu) se pou\u017e\u00edv\u00e1 pro stanice monitoruj\u00edc\u00ed kvalitu ovzdu\u0161\u00ed v bezprost\u0159edn\u00ed bl\u00edzkosti frekventovan\u00e9 komunikace.<\/p>\n<p>P\u0159ibli\u017en\u011b od za\u010d\u00e1tku letn\u00edch pr\u00e1zdnin je na t\u00e9to stanici patrn\u00fd v\u00fdrazn\u00fd n\u00e1r\u016fst p\u0159edev\u0161\u00edm koncentrac\u00ed suspendovan\u00fdch \u010d\u00e1stic PM<sub>10<\/sub> a oxidu dusi\u010dit\u00e9ho (NO<sub>2<\/sub>). Tento v\u00fdrazn\u00fd n\u00e1r\u016fst souvis\u00ed s pr\u00e1v\u011b prob\u00edhaj\u00edc\u00ed rekonstrukc\u00ed v ulici \u00dadoln\u00ed. M\u00edru zne\u010di\u0161t\u011bn\u00ed tato rekonstrukce ovliv\u0148uje dv\u011bma zp\u016fsoby:<\/p>\n<ul>\n<li><strong>stavba<\/strong>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li>zv\u00fd\u0161en\u00fd <strong>pohyb n\u00e1kladn\u00edch\u00a0automobil\u016f\u00a0<\/strong>(emise + resuspenze)<\/li>\n<li><strong>stavebn\u00ed materi\u00e1l<\/strong> &#8211; nap\u0159\u00edklad prachov\u00e9 \u010d\u00e1stice z hromad p\u00edsku, hl\u00edny, \u0161t\u011brku apod.\u00a0 jsou \u0161\u00ed\u0159eny v\u011btrem do okol\u00ed<\/li>\n<li><strong>stavebn\u00ed pr\u00e1ce<\/strong> &#8211; nap\u0159\u00edklad jeden z extr\u00e9mn\u00edch n\u00e1r\u016fst\u016f koncentrac\u00ed NO<sub>2<\/sub> m\u011bl p\u0159\u00ed\u010dinu v postaven\u00ed mobiln\u00edho vzduchov\u00e9ho kompresoru na naftu stavebn\u00edky doslova p\u0159\u00edmo vedle stanice (1 m), emise z tohoto za\u0159\u00edzen\u00ed tedy proudily p\u0159\u00edmo do hlavy analyz\u00e1toru (viz foto n\u00ed\u017ee)\n<figure id=\"attachment_1135\" aria-describedby=\"caption-attachment-1135\" style=\"width: 1460px\" class=\"wp-caption alignnone\"><a href=\"http:\/\/chmibrno.org\/blog\/?attachment_id=1135#main\"><img fetchpriority=\"high\" decoding=\"async\" class=\"wp-image-1135 size-full\" src=\"http:\/\/chmibrno.org\/blog\/wp-content\/uploads\/2018\/10\/compressor.jpg\" alt=\"\" width=\"1460\" height=\"756\" srcset=\"https:\/\/www.enviblog.cz\/blog\/wp-content\/uploads\/2018\/10\/compressor.jpg 1460w, https:\/\/www.enviblog.cz\/blog\/wp-content\/uploads\/2018\/10\/compressor-300x155.jpg 300w, https:\/\/www.enviblog.cz\/blog\/wp-content\/uploads\/2018\/10\/compressor-768x398.jpg 768w, https:\/\/www.enviblog.cz\/blog\/wp-content\/uploads\/2018\/10\/compressor-1024x530.jpg 1024w\" sizes=\"(max-width: 1460px) 100vw, 1460px\" \/><\/a><figcaption id=\"caption-attachment-1135\" class=\"wp-caption-text\"><span style=\"font-size: 10pt;\"><em>Kompresor um\u00edst\u011bn\u00fd v t\u011bsn\u00e9 bl\u00edzkosti stanice. Foto: M. Kom\u00e1rek, J. Brzezina<\/em><\/span><\/figcaption><\/figure><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li><strong>zv\u00fd\u0161en\u00e1 dopravn\u00ed intenzita<\/strong> &#8211; vy\u0161\u0161\u00ed v\u00fdskyt dopravn\u00edch kolon z d\u016fvodu z\u00fa\u017een\u00ed dopravn\u00edch pruh\u016f. Pomal\u00e9 popoj\u00ed\u017ed\u011bn\u00ed a st\u00e1n\u00ed aut zvy\u0161uje zne\u010di\u0161t\u011bn\u00ed z dopravy.<\/li>\n<\/ul>\n<p>Kombinace zv\u00fd\u0161en\u00e9 dopravn\u00ed intenzity u\u017e v tak dopravn\u011b zat\u00ed\u017een\u00e9 lokalit\u011b v kombinaci se zv\u00fd\u0161enou pra\u0161nost\u00ed ze stavby, pohybu n\u00e1kladn\u00edch vozidel a za\u0159\u00edzen\u00ed m\u00e1 za n\u00e1sledek, \u017ee v posledn\u00edch t\u00fddnech\/m\u011bs\u00edc\u00edch vid\u00edme n\u011bkdy b\u011bhem dne velmi prudk\u00fd n\u00e1r\u016fst koncentrac\u00ed p\u0159edev\u0161\u00edm suspendovan\u00fdch \u010d\u00e1stic. Pro ilustraci se m\u016f\u017eeme pod\u00edvat na pr\u016fm\u011brn\u00e9 koncentrace suspendovan\u00fdch \u010d\u00e1stic PM<sub>10<\/sub> na stanic\u00edch Brno &#8211; \u00davoz (hot spot), Brno &#8211; Zvona\u0159ka, Brno &#8211; Svatoplukova a Brno &#8211; Tu\u0159any. Brno &#8211; Zvona\u0159ka je rovn\u011b\u017e dopravn\u00ed stanice s vysok\u00fdm dopravn\u00edm zat\u00ed\u017een\u00edm. Brno &#8211; Svatoplukova je dopravn\u00ed stanic\u00ed a stanic\u00ed s dlouhodob\u011b nejvy\u0161\u0161\u00edm m\u011b\u0159en\u00fdm zne\u010di\u0161t\u011bn\u00edm v Brn\u011b. Jedn\u00e1 se o stanici v t\u011bsn\u00e9 bl\u00edzkosti \u010dty\u0159proudov\u00e9 silnice a rovn\u011b\u017e s vysok\u00fdm zne\u010di\u0161t\u011bn\u00edm z lok\u00e1ln\u00edho vyt\u00e1p\u011bn\u00ed v okol\u00ed stanice v zimn\u00edm obdob\u00ed. Stanice Brno-Tu\u0159any je poza\u010fov\u00e1 stanice v are\u00e1lu brn\u011bnsk\u00e9ho leti\u0161t\u011b.<\/p>\n<figure id=\"attachment_1142\" aria-describedby=\"caption-attachment-1142\" style=\"width: 580px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" class=\"wp-image-1142 size-full\" src=\"http:\/\/chmibrno.org\/blog\/wp-content\/uploads\/2018\/10\/PM10graf.jpg\" alt=\"\" width=\"580\" height=\"448\" srcset=\"https:\/\/www.enviblog.cz\/blog\/wp-content\/uploads\/2018\/10\/PM10graf.jpg 580w, https:\/\/www.enviblog.cz\/blog\/wp-content\/uploads\/2018\/10\/PM10graf-300x232.jpg 300w\" sizes=\"(max-width: 580px) 100vw, 580px\" \/><figcaption id=\"caption-attachment-1142\" class=\"wp-caption-text\"><span style=\"font-size: 10pt;\"><em>Graf pr\u016fm\u011brn\u00fdch koncentrac\u00ed suspendovan\u00fdch \u010d\u00e1stic PM<sub>10<\/sub> na \u010dty\u0159ech brn\u011bnsk\u00fdch stanic v roce 2018. Na ose X jsou m\u011bs\u00edce (leden-z\u00e1\u0159\u00ed), na ose Y koncentrace v \u00b5g\/m<sup>3<\/sup>. Jedn\u00e1 se o operativn\u00ed data.<\/em><\/span><\/figcaption><\/figure>\n<p>Z v\u00fd\u0161e uveden\u00e9ho grafu je jasn\u011b vid\u011bt n\u00e1r\u016fst koncentrac\u00ed na stanici \u00davoz. Zat\u00edmco na za\u010d\u00e1tku roku v lednu byly koncentrace PM<sub>10<\/sub> na stanici \u00davoz dokonce nejni\u017e\u0161\u00ed, aktu\u00e1ln\u011b jsou jasn\u011b nejvy\u0161\u0161\u00ed. Toto zv\u00fd\u0161en\u00ed, jak v\u0161ak ji\u017e bylo uvedeno, souvis\u00ed s velmi lok\u00e1ln\u00edm ovlivn\u011bn\u00edm p\u0159\u00edmo v m\u00edst\u011b m\u011b\u0159en\u00ed. Aktu\u00e1ln\u011b m\u011b\u0159en\u00e9 hodnoty, by\u0165 odpov\u00eddaj\u00ed realit\u011b, nelze br\u00e1t jako reprezentativn\u00ed hodnoty pro danou lokalitu dlouhodob\u011b.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>M\u011bstsk\u00e1, dopravn\u00ed stanice Brno-\u00davoz (hot spot) pat\u0159\u00ed dlouhodob\u011b ke stanic\u00edm s nejvy\u0161\u0161\u00edmi m\u011b\u0159en\u00fdmi koncentracemi zne\u010di\u0161t\u011bn\u00ed v Brn\u011b. V posledn\u00ed dob\u011b jsou v\u0161ak tyto koncentrace neobvykle vysok\u00e9 i ve srovn\u00e1n\u00ed s jinak je\u0161t\u011b problemati\u010dt\u011bj\u0161\u00edmi stanicemi. Pro\u010d do\u0161lo k tak n\u00e1hl\u00e9mu zhor\u0161en\u00ed? Automatick\u00e1 dopravn\u00ed stanice Brno-\u00davoz (hot spot) le\u017e\u00ed p\u0159\u00edmo vedle velmi frekventovan\u00e9 k\u0159i\u017eovatky ulic \u00davoz a [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1146,"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":[79,43],"coauthors":[19],"class_list":["post-1131","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ovzdusi","tag-stanice","tag-znecisteni","entry","has-media"],"jetpack_publicize_connections":[],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/www.enviblog.cz\/blog\/wp-content\/uploads\/2018\/10\/20180325_150721_HDR-1.jpg","jetpack_shortlink":"https:\/\/wp.me\/pa1A1I-if","_links":{"self":[{"href":"https:\/\/www.enviblog.cz\/blog\/wp-json\/wp\/v2\/posts\/1131","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=1131"}],"version-history":[{"count":8,"href":"https:\/\/www.enviblog.cz\/blog\/wp-json\/wp\/v2\/posts\/1131\/revisions"}],"predecessor-version":[{"id":1157,"href":"https:\/\/www.enviblog.cz\/blog\/wp-json\/wp\/v2\/posts\/1131\/revisions\/1157"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.enviblog.cz\/blog\/wp-json\/wp\/v2\/media\/1146"}],"wp:attachment":[{"href":"https:\/\/www.enviblog.cz\/blog\/wp-json\/wp\/v2\/media?parent=1131"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.enviblog.cz\/blog\/wp-json\/wp\/v2\/categories?post=1131"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.enviblog.cz\/blog\/wp-json\/wp\/v2\/tags?post=1131"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/www.enviblog.cz\/blog\/wp-json\/wp\/v2\/coauthors?post=1131"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}