Nei Iwe Zvakanyanyisa Kuda Kumira Kutarisisa MuDziva

Zvemukati

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Kana iwe wakambodongorera mudziva, iwe unoziva kuti iyo yese "iyo mvura inozoshandura mavara uye isu tigoziva kuti iwe wakazviita" chinhu izere dhorobha ngano. Asi kushaikwa kwekururamisira kwedziva hakureve kuti haufanirwe kunzwa uine mhosva pamusoro pezvawakaita. Nhau dzichangoburwa-kudzidza kwemakumi matatu neshanu emadziva ekushambira uye anopisa matabhu muCanada-inoratidza kuti pakati-pekushambira peeing idambudziko rakakura kwazvo.

Chikwata chevaongorori kubva kuYunivhesiti yeAlberta, Edmonton, vakawana kuti zana muzana remadziva nematubhu avakatorera akaedzwa zvakanaka kune acesulfame potasium (ACE), chinotapira chekugadzira chinowanzo kuwanikwa muchikafu chakagadzirwa chinopfuura nemuviri chisina kuchinjika. (Shanduro: pee.) Rimwe dziva rakaenzana neOlympic (830,000 marita ose) raiva neanenge marita 75 eweti mariri, maererano neongororo yacho. Kukubatsira kuona: zvakafanana nekurasa mabhodhoro makumi manomwe neshanu eNalgene eweti mudziva remakwikwi ekushambira. UM, chakakomba.

Isu kinda taitoziva kuti vanhu vangani vaikanganisa kuenda kunhamba yekutanga mumvura; vangangoita 19 muzana yevanhu vakabvuma kuti vakatarisa mudziva mune ongororo ya2012 neInternational Journal yeAcatic Research uye Dzidzo. Asi kuziva kuwanda kwazviri kushambira kutenderera nesu chiyeuchidzo chisina kugadzikana chekuti kuenda kunonyudza kana kutemha mamwe marangi mudziva hakusi kungova noutano, chiitiko chekuvaraidza sezvatingafunge. (Hezvino izvo mutambi weOlymicic Natalie Coughlin anofunga nezve peeing mudziva.)

Asi ndizvo zvakaita chlorine, rudyi? Kwete nekukurumidza, Phelps. Madziva akazara nemishonga inouraya utachiona kuchengetedza mvura ichiripo kubva mukubereka mabhakitiriya anotyisa (salmonella, giardia, uye E. coli), uye iwo maronda anouraya mishonga anogadziriswa nemakemikari neyakagadzirwa nyaya (verenga: tsvina, ziya, mafuta, uye-yep-pee ) vanhu vanounza mudziva, sekureva kweiyi vhidhiyo neAmerican Chemical Society. Aya maitiro anogadzira chinhu chinonzi disinfection byproducts (DBPs). Urini yakanyatso iine urea yakawanda, iyo inosangana nechlorine kugadzira DBP inonzi trichloramine, iyo inokonzeresa iyo yakasarudzika dziva kunhuhwidza, pamwe nematsvuku, maziso akatsamwa, uye yakabatanidzwa (senge mamwe akawanda maDBP) kune nyaya dzekufema senge asthma. Uye kunyangwe hazvo zvimwe zvinhu zvehupenyu zvichipa kune maDBP mumadziva, weti inoitisa hafu iyo DBPs inogadzirwa nevanoshambira. Masango madziva akawanikwa aine 2.4 nguva yakawanda mutagenic (yakazadzwa nemajini-anoshandura vamiririri) uye anopisa matabhu aive 4.1 zvakapetwa mutagenic kupfuura epombi yemvura, maererano neimwe ongororo mumagazini Environmental Science & Technology. (Zvimwe pamusoro pazvo: How Gross Your Gym Pool Really Is.) Chikamu chikuru cheavo chakabva chakananga kubva kuurea, maererano nevatsvakurudzi. (Uye izvi hazvitomboverenga mamwe maparasita anotyisa ari kushambira achitenderera mumadziva eruzhinji, madziva, makungwa uye mapaki emvura.)

Hatife takakuudza iwe kuti usvetuke yako inotevera kushambira, asi isu kuda kukuudza kuti uburitse dundira rako kare. Uye ita shuwa yekurova mashawa pre-kushambira-zvinoreva kushoma tsvina uye dikita kupinda mumvura.

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