Ka taƙaita labarin:  Rayuwa kusa da tituna masu cunkoson jama'a tare da yawan gurɓataccen iska na iya haifar da "ciwon bugun jini" wanda ke ƙara haɗarin rashin hankali, masana kimiyya sun yi gargaɗi. Sun ce, haɗuwa da ƙananan ƙwayoyin hayaƙi, waɗanda yawancinsu hayaki ne da ke fitowa daga mota da kuma hayaki daga ma'aikata, yana canja tsarin ƙwaƙwalwa. A baya an nuna cewa ƙananan ƙwayoyin suna haifar da lalacewar huhu da canje-canje masu cutarwa a cikin jijiyoyin jini da haɗuwa, kuma ana tunanin suna ba da gudummawa ga mutuwar mutane 29,000 kowace shekara a Burtaniya. Rayuwa kusa da wata hanya mai cike da cunkoso na iya kara damar kamuwa da cutar rashin hankali, bincike ya gano. Masu bincike sun binciki kwakwalwar mutane sama da 900 masu shekaru sama da 60 kuma sun tantance hadarin gurbatawa. Masu binciken Amurka sun gano cewa zama a kusa da tituna masu cunkoso ko wuraren da aka gurbata na iya haifar da " bugun jini na shiru " wanda hakan ke haifar da raguwar kwakwalwa da sauran lalacewa. Cutar bugun jini da ba a ji ba, wadda take faruwa ne saboda toshewar jijiyoyin jini da ke kai ga kwakwalwa, ba ta da alamun bayyanar kuma wanda aka yi wa bugun ba ya san da hakan. Sudha Seshadri, farfesa a fannin ilimin jijiyoyin jiki a Jami'ar Boston School of Medicine, ta ce: "Wannan abin damuwa ne, tun da mun san cewa bugun jini na shiru yana ƙara haɗarin bugun jini da kuma ciwon ƙwaƙwalwa, matsalolin tafiya da baƙin ciki. <unk>Yanzu muna shirin duba tasirin gurɓataccen iska a kan lokaci mai tsawo, da tasirinsa a kan kwakwalwar kwakwalwa a tsawon lokaci, da sauran haɗari ciki har da bugun jini da rashin hankali.<unk> Binciken, da Cibiyar Kiwon Lafiya ta Beth Israel Deaconess da Makarantar Koyon Magunguna ta Jami'ar Boston suka yi, ya haɗa da mutane fiye da 900 da shekarunsu ya kai 60 da suka wuce waɗanda ba su da ciwon ƙwaƙwalwa ko kuma ciwon shanyewar jiki. Ya yi rikodin yadda mahalarta ke zaune daga manyan hanyoyi kuma ya yi amfani da hotunan tauraron dan adam don tantance haɗarin su ga ƙananan ƙwayoyin da aka sani da PM2.5. Wannan ya ƙunshi ƙananan ƙwayoyin da girman su bai wuce micrometers 2.5 ba, ko kuma sau 30 ya fi kaurin gashin mutum. Wadannan barbashi ana samar da su ne daga wurare daban-daban, ciki har da cibiyoyin samar da wutar lantarki, masana'antu, manyan motoci da motoci da kuma konewar itace. Su ne...
Masu binciken Amurkawa sun bincika sama da mutane 900 masu shekaru 60 zuwa sama. Masana sun gaskata cewa gurɓataccen iska zai iya ƙara haɗarin 'ciwon shanyewar jiki' An yi imanin cewa ƙananan ƙwayoyin cuta a cikin gurɓataccen yanayi suna kashe mutane 29,000 a shekara. Haɗarin samun bugun jini na shiru zai iya ƙaruwa da fiye da kashi 40 cikin dari.