Kungani Udinga Ukuyeka Ukuchama Echibini
-Delile
Uma uke wachamela echibini, uyazi ukuthi wonke "amanzi azophenduka imibala futhi sizokwazi ukuthi ukwenzile" into eyinganekwane yasemadolobheni ephelele. Kodwa ukuntuleka kobulungiswa beqembu akusho ukuthi akufanele uzizwe unecala ngalokho okwenzile. Izindaba zakamuva-ucwaningo lwamachibi okubhukuda omphakathi angama-31 namabhuthi ashisayo eCanada-kukhombisa ukuthi ukuchama maphakathi nokubhukuda kuyinkinga enkulu impela.
Ithimba labaphenyi abavela eNyuvesi yase-Alberta, e-Edmonton, lithole ukuthi amaphesenti ayi-100 wamachibi namabhavu abawathathileyo ahlolwe kahle i-acesulfame potassium (ACE), iswidi lokufakelwa esivame ukutholakala ekudleni okusetshenzisiwe okudlula emzimbeni kungashintshiwe. (Ukuhumusha: pee.) Ichibi elilodwa elilingana nama-Olympic (ingqikithi yamalitha angu-830,000) lalinamalitha angaba ngu-75 omchamo kulo, ngokocwaningo. Ukukusiza ukubona ngeso lengqondo: lokho kufana nokulahla amabhodlela e-peal angama-75 agcwele echibini lokubhukuda elincintisanayo. UM, okuphelele.
Sivele sazi ukuthi bangaki abantu ababenecala lokuya kunombolo yokuqala emanzini; cishe amaphesenti angu-19 abantu avuma ukuthi achame echibini ocwaningweni lwango-2012 olwenziwa yi-International Journal of Aquatic Research and Education. Kepha ukwazi ukuthi kubhukuda kangakanani nathi kuyisikhumbuzo esingakhungathekisi sokuthi ukuya ediphini noma ukugawula amathanga athile echibini akuyona into enempilo, yokuzijabulisa njengoba singacabanga. (Nakhu okucatshangwayo umbhukudi wama-Olympic u-Natalie Coughlin mayelana nokuchama echibini.)
Kodwa yilokho okushiwo i-chlorine, kwesokudla? Hhayi ngokushesha okukhulu, Phelps. Amachibi alayishwa izibulala-magciwane ukuze kuvikelwe amanzi anganyakazi ekuzaleni amagciwane asabekayo (njenge-salmonella, i-giardia, ne-E. coli), futhi lawo ma-disinfectants abhekana nokuhlangana kwamakhemikhali ne-organic matter (funda: ukungcola, umjuluko, amafutha okugcoba, kanye ne-yep-pee ) abantu abethula echibini, ngokwale vidiyo ye-American Chemical Society. Lokhu kusabela kwakha into ebizwa nge-disinfection byproducts (DBPs). Umchamo uqukethe ikakhulukazi i-urea eningi, ehlangana ne-chlorine ukuze kwakhe i-DBP ebizwa ngokuthi i-trichloramine, ebangela lelo phunga le-pool lakudala, kanye namehlo abomvu, athukuthele, futhi liye laxhunyaniswa (njengamanye ama-DBP amaningi) ezindabeni zokuphefumula njengesifuba somoya. Futhi yize ezinye izinto eziphilayo zinikela kuma-DBP emachibini, umchamo ubhekele lokhu uhhafu ama-DBP akhiqizwa ababhukudi. Amachibi e-Somes atholakale ephindwe izikhathi ezingu-2.4 ngaphezulu kwe-mutagenic (egcwele ama-agent ashintsha izakhi zofuzo) futhi amashubhu ashisayo ayephindwe izikhathi ezingu-4.1 ngaphezu kwamanzi kampompi ayisisekelo, ngokusho kolunye ucwaningo kujenali. Isayensi Yezemvelo Nobuchwepheshe. (Okuningi kulokho: How Gross Your Gym Pool Is Is Real.) Ingxenye enkulu yalabo ivela ngqo i-urea, ngokusho kwabaphenyi. (Futhi lokhu akubalwa nezinye izinambuzane ezesabekayo ezibhukuda emachibini omphakathi, amachibi, amachibi, namapaki wamanzi.)
Ngeke sikutshele ukuthi weqe ukubhukuda kwakho okulandelayo, kodwa thina intando ngikutshele ukuthi ukhiphe isinye sakho kusengaphambili. Futhi qiniseka ukuthi ushaya izihlambi ngaphambi kokubhukuda-lokho kuzosho ukungcola okuncane nokujuluka ukungena emanzini.