M\u011bsto M\u011bln\u00edk v\u00a0r\u00e1mci zp\u0159\u00edstupn\u011bn\u00ed podzemn\u00edch prostor navazuj\u00edc\u00edch na m\u011bstskou studnu, nechalo prov\u00e9st aktu\u00e1ln\u00ed fyzik\u00e1ln\u011bchemick\u00e9 vy\u0161et\u0159en\u00ed vody ze studny.<\/p>
V\u00fdsledky uk\u00e1zaly, \u017ee v\u00a0m\u011b\u0159en\u00fdch parametrech odebran\u00fd vzorek vody odpov\u00edd\u00e1 po\u017eadavk\u016fm na kvalitu pitn\u00e9 vody. Ve vod\u011b bylo prok\u00e1z\u00e1no m\u00edrn\u011b sn\u00ed\u017een\u00ed pH ( 5,0 ) a vy\u0161\u0161\u00ed obsah v\u00e1pn\u00edk\u016f ( 118 mg\/l \u2013 doporu\u010den\u00e1 hodnota je 100 mg\/l ) na horn\u00ed hranici doporu\u010den\u00e9 hodnoty. Tato zji\u0161t\u011bn\u00ed nejsou v\u00fdznamn\u00e1 pro zdravotn\u00ed nez\u00e1vadnost vodn\u00edho zdroje. Z\u00a0hlediska p\u0159\u00edzniv\u00e9ho obsahu dusitan\u016f pod hodnotu 0,03 mg\/l a dusi\u010dnan\u016f\u00a0 23 mg\/l\u00a0 lze p\u0159edpokl\u00e1dat, \u017ee se pravd\u011bpodobn\u011b jedn\u00e1\u00a0 o dostate\u010dn\u011b siln\u00fd vodn\u00ed zdroj, kter\u00fd je pom\u011brn\u011b dob\u0159e chr\u00e1n\u011bn p\u0159ed kontaminac\u00ed zat\u00e9k\u00e1n\u00edm povrchov\u00fdch vod.<\/b><\/span> Obsah dusi\u010dnan\u016f sice nevyhovuje jako voda kojeneck\u00e1, proto\u017ee p\u0159esahuje hodnotu 15 mg\/l, ale pro dosp\u011bl\u00e9ho \u010dlov\u011bka s\u00a0rezervou spl\u0148uje hygienick\u00fd limit, kter\u00fd je 50 mg\/l.<\/span><\/p> Kvalitn\u00ed voda v\u00a0m\u011bstsk\u00e9 studn\u00ed v\u0161ak nebyla samoz\u0159ejmost\u00ed. V\u00a0roce 1889 provedl chemik pan Franti\u0161ek Zv\u011b\u0159ina rozbor vody a v\u00fdsledky anal\u00fdzy byly alarmuj\u00edc\u00ed. V obsahu\u00a0 doporu\u010den\u00e9 hodnoty v\u00e1pn\u00edk\u016f byla zji\u0161t\u011bna v\u00fd\u0161e 407,1 mg\/l, tedy hodnota 4n\u00e1sobn\u00e1, v\u00a0obsahu ho\u0159\u010d\u00edku byla dvojn\u00e1sobn\u00e1 ( 68,4 mg\/l), st\u00e1vaj\u00edc\u00ed limit je 30 mg\/l. U dusi\u010dnan\u016f byla hodnota\u00a0 v\u00edce jak 5n\u00e1sobn\u00e1 a dos\u00e1hla 260,3 mg\/l. Alarmuj\u00edc\u00ed z\u00e1t\u011b\u017e vody byla u amoniak\u016f a dos\u00e1hla 1530,5 mg\/l.\u00a0 Jak p\u00ed\u0161\u00ed dobov\u00e9 prameny, \u201eVoda ze studny m\u011blnick\u00e9 jest voda\u00a0 naprosto zka\u017een\u00e1 a pro velk\u00e9 mno\u017estv\u00ed l\u00e1tek zdrav\u00ed \u0161kodliv\u00fdch\u00a0 a pro velkou svou tvrdost k\u00a0pou\u017e\u00edv\u00e1n\u00ed, jako\u017e i jin\u00fdm dom\u00e1c\u00edm\u00a0 \u00fa\u010del\u016fm naprosto nezp\u016fsobil\u00e1\u201c.<\/p> Podle st\u00e1vaj\u00edc\u00edch normativ\u016f, zejm\u00e9na v\u00a0obsahu dus\u00edkat\u00fdch iont\u016f, byla voda ve studni na konci 80.let p\u0159edminul\u00e9ho stolet\u00ed na \u00farovni\u00a0 zna\u010dn\u011b zne\u010di\u0161t\u011bn\u00e9ho povrchov\u00e9ho toku. Jin\u00fdmi slovy, dosahovala parametr\u016f vody v\u00a0\u0159ece Labi. D\u016fvodem zna\u010dn\u00e9ho zne\u010di\u0161t\u011bn\u00ed bylo na jedn\u00e9 stran\u011b intenzivn\u00ed zem\u011bd\u011blstv\u00ed a na stran\u011b druh\u00e9 i nedostate\u010dn\u00e9 odstra\u0148ov\u00e1n\u00ed spla\u0161kov\u00fdch vod.<\/p> Na zna\u010dn\u00fd pod\u00edl zem\u011bd\u011blstv\u00ed na v\u00fdskytu rezidu\u00ed cizorod\u00fdch l\u00e1tek poukazuj\u00ed vysok\u00e9 hodnoty s\u00edranov\u00fdch iont\u016f. Od poloviny 19. stolet\u00ed se za\u010dala zvl\u00e1\u0161t\u011b v\u00a0Polab\u00ed pou\u017e\u00edvat ve velk\u00e9m rozsahu tzv. hnojiv\u00e1 s\u00e1dra, jej\u00edm\u017e zpracov\u00e1n\u00edm vznik\u00e1 s\u00edran v\u00e1penat\u00fd.<\/p> V\u00a0roce 1836 bylo jenom v\u00a0\u010cech\u00e1ch registrov\u00e1no 13 tov\u00e1ren na v\u00fdrobu tohoto hnojiva. Od 70. let 19.stolet\u00ed byl postupn\u011b s\u00edran v\u00e1penat\u00fd\u00a0 nahrazov\u00e1n rod\u00edc\u00ed se legendou\u00a0 mezi miner\u00e1ln\u00edmu hnojivy, a to superfosf\u00e1tem.<\/p> Strojen\u00e1 hnojiva byla d\u00e1le mimo jin\u00e9 dopl\u0148ov\u00e1na tzv. dom\u00e1c\u00edm guanem neboli \u010dlov\u011b\u010dinou. Pod t\u00edmto tajemn\u00fdm n\u00e1zvem\u00a0 se skr\u00fdvalo\u00a0 hnojivo z\u00a0lidsk\u00fdch exkrement\u016f sm\u00edchan\u00fdch se zeminou, pilinami nebo jin\u00fdm odpadem z\u00a0m\u011bstsk\u00fdch smet\u00e1ren. Pr\u00e1v\u011b v\u00fdrobou\u00a0 \u010dlov\u011b\u010diny\u00a0 nebo tak\u00e9 novinky, jak se kdysi\u00a0 tomuto hnojivu\u00a0 \u0159\u00edkalo,\u00a0 za\u010dala\u00a0 rychle se rozr\u016fstaj\u00edc\u00ed m\u011bsta \u0159e\u0161it\u00a0 sv\u016fj kanaliza\u010dn\u00ed probl\u00e9m.<\/p> Bylo pouze ot\u00e1zkou \u010dasu, kdy vodonosn\u00e9 vrstvy budou kontaminov\u00e1ny \u010dinnost\u00ed \u010dlov\u011bka p\u0159i odstra\u0148ov\u00e1n\u00ed sv\u00fdch v\u00fdm\u011b\u0161k\u016f a intenzivn\u00ed zem\u011bd\u011blskou \u010dinnost\u00ed.<\/p> MVDr.Ctirad Mike\u0161, vedouc\u00ed Odboru \u017eivotn\u00edho prost\u0159ed\u00ed a zem\u011bd\u011blstv\u00ed M\u00da M\u011bln\u00edk<\/b><\/p>","protected":false},"excerpt":{"rendered":" M\u011bsto M\u011bln\u00edk v\u00a0r\u00e1mci zp\u0159\u00edstupn\u011bn\u00ed podzemn\u00edch prostor navazuj\u00edc\u00edch na m\u011bstskou studnu, nechalo prov\u00e9st aktu\u00e1ln\u00ed fyzik\u00e1ln\u011bchemick\u00e9 vy\u0161et\u0159en\u00ed vody ze studny.V\u00fdsledky uk\u00e1zaly, \u017ee v\u00a0m\u011b\u0159en\u00fdch parametrech odebran\u00fd vzorek vody odpov\u00edd\u00e1 po\u017eadavk\u016fm na kvalitu pitn\u00e9 vody. Ve vod\u011b bylo prok\u00e1z\u00e1no m\u00edrn\u011b sn\u00ed\u017een\u00ed pH ( 5,0 ) a vy\u0161\u0161\u00ed obsah v\u00e1pn\u00edk\u016f ( 118 mg\/l \u2013 doporu\u010den\u00e1 hodnota je 100 mg\/l ) […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0},"categories":[3,1],"tags":[],"_links":{"self":[{"href":"https:\/\/vodajelenice.cz\/index.php?rest_route=\/wp\/v2\/posts\/1582"}],"collection":[{"href":"https:\/\/vodajelenice.cz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vodajelenice.cz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vodajelenice.cz\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/vodajelenice.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1582"}],"version-history":[{"count":5,"href":"https:\/\/vodajelenice.cz\/index.php?rest_route=\/wp\/v2\/posts\/1582\/revisions"}],"predecessor-version":[{"id":1588,"href":"https:\/\/vodajelenice.cz\/index.php?rest_route=\/wp\/v2\/posts\/1582\/revisions\/1588"}],"wp:attachment":[{"href":"https:\/\/vodajelenice.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1582"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vodajelenice.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1582"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vodajelenice.cz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1582"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}