Tirohia te wāhanga i raro nei, kātahi ka whakautu i te pātai i muri mai i te reo kotahi me te wāhanga:  Passage: I puta te aitua o te Hawks Nest Tunnel i waenga i te 1927 me te 1932 i roto i te kaupapa o te awaawa o West Virginia i arahina e Union Carbide. I te wā o te hanganga o te awaawa, i kitea e ngā kaimahi te konutai silica, ā, i tonoa kia kerihia hei whakamahi i te maitai hiko. Kāore i hoatu ki ngā kaimahi he kopare, he taputapu manawa rānei hei whakamahi i te wa e keri ana. Nā te pānga o te puehu silica, he maha nga kaimahi i pāngia e te silicosis, he mate pukupuku ngoikore. E ai ki tētahi tohu i te wāhi, 109 ngā mate i whakaaetia. E ai ki tētahi whakarongo a te kaunihera, e 476 te tokomaha o te hunga i mate.  Pātai: He aha te take i mate ai te puehu silica ki nga kaimahi maina?
kāore i hoatu ki ngā kaimahi he kopare, he taputapu manawa rānei