These are below the CV of 20 ppm, but well above the background level of between 0.4 and 2 ppm. Much of the antimony found in soil and sediment is so strongly attached to dirt particles or buried in minerals that it cannot cause adverse health effects from exposure. There is no information on human health effects from ingesting antimony for more than 14 days. Copper Copper was found significantly above background levels on-site, in the drainage area, and in the residential yards. Long-term exposure to copper dust can irritate the nose, mouth, and eyes.
Copper is a naturally occurring metal that is extensively mined and processed in the United States.
Most copper compounds found in air, water, sediment, and soil are so strongly attached to soil or imbedded in minerals that they cannot easily cause adverse health effects. Copper found at hazardous waste sites is usually in this form. Soil generally contains between 2 and 250 ppm copper. The soil in one residential yard near MDI contained 8,470 ppm and the two samples collected from the drainage area contained 826 and 940 ppm copper. The primary toxicological effects of consuming high levels of copper in humans are gastrointestinal.