Ka taƙaita labarin:  (CNN) Ba sabon abu ba ne a ce gurɓataccen iska ba shi da kyau ga lafiyar mutane. Abin da zai fi ba ka mamaki, shi ne sanin cewa gurɓataccen iska yana da lahani ga lafiyar jaririn da ke cikin ciki, tun kafin huhu ya fara numfashi. Bincike da yawa ya nuna cewa gurɓataccen iska yana shafan lafiyar jarirai, a cikin mahaifa da kuma bayan an haife su. Muna tunanin cewa jariri yana da kariya a cikin jikin mahaifiyarsa, amma gurɓataccen abu zai iya kai wa jariri kamar yadda abinci da magani suke yi. Gubar, mercury da ƙwayoyin cuta suna daga cikin nau'ikan gurɓatar iska da muka sani na iya shafar lafiyar jarirai kafin da bayan haihuwa. Ozone, ko smog, shi ne na gaba da za a ƙara a jerin gurɓataccen iska da aka sani yana da lahani ga lafiyar tayin. A cikin 'yan shekarun da suka gabata, wasu bincike sun nuna yiwuwar alaƙa tsakanin mafi girman matakan fallasa ozone na mahaifa da sakamakon rashin lafiya a cikin jarirai, gami da canje-canje a cikin tsarin huhu da aiki, ƙananan nauyin haihuwa da rashin daidaiton halayyar kwakwalwa. Za a iya tsammanin yawancin waɗannan cututtukan na da sakamako na tsawon rayuwa. Waɗannan sakamako ne masu matukar damuwa da ke buƙatar ƙarin bincike don fahimta sosai. Waɗannan nazarin suna ƙarawa ga tabbaci mai yawa da ke nuna illolin ozone ga mutane na kowane zamani. A shekara ta 2007, an kimanta cewa mutane 15,000 sun mutu sanadiyyar iska mai guba. Ozone kuma yana haifar da rashin numfashi, wheezing da tari, bugun asma, ƙara haɗarin kamuwa da cututtukan numfashi da kuma ƙara buƙatar mutane da cututtukan huhu - kamar yara masu cutar asma - don samun magani ko shiga asibiti. Ta yaya mace mai ciki za ta kāre kanta da kuma jaririnta daga lahani da iskar ozone ke jawowa? Bayan haka, yawanci ba a ganin ozone (sai dai a wasu yanayi, kamar smog) kuma matsakaicin mutum ba zai iya sanin yawansa ba. Faɗakarwar ingancin iska a lokacin rani na iya taimakawa a wasu yanayi, amma wasu mata masu juna biyu ba za su iya guje wa kamuwa da cutar ba. A cikin...
Hukumar kare muhalli ta gabatar da tsauraran ka'idoji na ozone. Sabbin ka'idojin hana gurbata muhalli za su kawo ka'idojin matakin ozone daidai da abin da kimiyya ta gaya mana.