PORTLAND, Ore. – Portland glass factories that were contributing to high levels of air toxics have agreed to stop using cadmium and arsenic. The Department of Environmental Quality said it learned of the high levels of toxics in June but did not immediately inform the public. Bullseye Glass complied with the state’s requests including halting the use of chromium. But owner Dan Schwoerer said Bullseye wasn’t even using chromium at the time measurements were made. He says the chemicals account for 60 percent of their product line.