Within days, state officials are slated to release the alarming results of a monitoring program of airborne heavy metals, including arsenic, conducted this past October in inner Southeast Portland, the Mercury has learned. The state Department of Environmental Quality and the Oregon Health Authority plan to announce that DEQ data indicate a monthly average of 49 times the state air-safety benchmark level for the neurotoxin and carcinogen cadmium, and 159 times DEQ's air-safety goal for.