Fiye da rabin al'ummar duniya suna rayuwa ba tare da kariyar isassun ingancin iska ba, bisa ga binciken da aka buga a cikin Bulletin na Hukumar Lafiya ta Duniya (WHO).
Gurbacewar iska ta bambanta sosai a sassa daban-daban na duniya, amma a duk faɗin duniya, gurɓataccen ƙwayar cuta (PM2.5) na da alhakin mutuwar mutane miliyan 4.2 a kowace shekara, don tantance kariyar duniya daga gare ta, masu bincike daga Jami'ar McGill an kafa don bincika ƙa'idodin ingancin iska na duniya.
Masu binciken sun gano cewa idan akwai kariya, ka'idoji sun fi muni fiye da abin da WHO ke ganin ba shi da lafiya.
Yawancin yankuna da ke da mafi munin matakan gurɓacewar iska, kamar Gabas ta Tsakiya, ba sa ma auna PM2.5.
Shugabar marubuciyar binciken, Parisa Ariya, farfesa a Sashen Kimiyyar sinadarai a Jami’ar McGill, ta ce: ‘A Kanada, kusan mutane 5,900 ne ke mutuwa a kowace shekara sakamakon gurɓacewar iska, bisa ƙiyasin da Health Canada ta yi. Gurbacewar iska tana kashe kusan 'yan Kanada da yawa a cikin shekaru uku kamar yadda aka kashe Covid-19 zuwa yau.'
Yevgen Nazarenko, marubucin binciken ya kara da cewa: ''Mun dauki matakan da ba a taba ganin irin su ba don kare mutane daga Covid-19, amma ba mu yi isa ba don guje wa miliyoyin mace-macen da za a iya karewa ta hanyar gurbatar iska a kowace shekara.
Bincikenmu ya nuna cewa fiye da rabin duniya na buƙatar kariya cikin gaggawa ta hanyar isassun matakan ingancin iska na PM2.5. Sanya waɗannan ƙa'idodi a ko'ina zai ceci rayuka marasa adadi. Kuma inda ka'idoji sun riga sun kasance, yakamata a daidaita su a duniya.
"Ko a kasashen da suka ci gaba, dole ne mu kara himma wajen tsaftace iska don ceton dubban daruruwan rayuka a kowace shekara."
