A ranar 13 ga Disamba, 2013, titunan Paris sun ƙazantu kamar ɗakuna mai murabba'in mita 20 mai shan sigari takwas. Babban birnin yana cikin wani yanayi na gurbata yanayi mai matukar yawa, saboda zirga-zirgar ababen hawa, dumama masana'antu da ayyukan masana'antu. Da karfe 18:6 na yamma, sama ta gabatar da miliyan XNUMX barbashi lafiya kowace lita ta iska, sau 30 fiye da yadda take. Yanayin dan Parisiya yayi kama da na shan taba m.
Wadannan bayanan da ba a buga ba an bayyana su ga jama'a a ranar Litinin, 24 ga Nuwamba, kuma an same su ne saboda kwallon Paris, wanda aka girka a wurin shakatawar Andre Citroen, a cikin Gundumar 15, iya ci gaba da auna nanoparticles yanzu a cikin iska. Wadannan barbashi ultrafine, wanda diamita bai wuce micron 0,1 ba, yana da matukar illa ga lafiyar mutum, saboda sun shiga cikin huhu sosai, sun shiga gudana sanguine kuma suna iya isa tasoshin zuciya.
Fina o ultrafine, wadannan kwayoyi sun kasafta tun shekarar 2012 daga Hukumar Lafiya ta Duniya (WHO), a matsayin mai cutar kanjamau (huhu, mafitsara). Wadannan na iya haifar cututtuka zuciya da asma. Hakanan suna da tasiri kan haihuwa kuma suna sanya mata masu ciki cikin haɗarin haihuwar yara ƙanana masu ƙarancin ciki. Da WHO ya kiyasta cewa sama da mutane miliyan 2 a duniya na mutuwa kowace shekara daga shaƙar iska barbashi lafiya a cikin iska, saboda gurbata yanayi na yanayi a duk duniya