Dust Exposure Pre and Post Intervention (IMAGE) OK International Caption Visible dust from ore crushing machines before and after implementing wet spray misting. Credit OK International/ Oxford University Press Usage Restrictions ©2018 Oxford University Press License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.