Slight increase in cadmium still below 24-hour screening levels
May 26, 2016
Portland, OR—Levels of lead monitored for the period ending May 11 show that levels in the air decreased following spikes detected in monitors on May 9 and 10 that were likely connected to Bullseye Glass Co. in southeast Portland.
Results of monitoring on May 11 showed lead levels have returned to those seen in previous months of monitoring, and are well below the 24-hour screening level—the short-term concentration above which immediate negative health effects could occur.
Hexavalent chromium levels are still averaging above 12-month health goals, known as ambient benchmark concentrations. Investigators at the Oregon Department of Environmental Quality continue to seek the source of these emissions.