(Utah Division of Air Quality) This 2022 image, which shows a bank of fog in the distance, was submitted to the Utah Division of Air Quality with a complaint. DAQ released it to The Utah Investigative Journalism Project, which requested records related to complaints about plumes near US Magnesium in 2021 and 2022. Multiple people described the mist as smelling of chlorine or chemicals, or in late 2022, as oily and slightly sweet. U.S. Magnesium said it treated its lithium pit with hydrochloric acid in December 2022, which produced steam.