Copper rates, and carcass dressing percentages. Chronic copper toxicity does not normally occur in humans because of transport systems that regulate absorption and excretion. Autosomal recessive mutations in copper transport proteins can disable these systems, leading to Wilson's disease with copper accumulation and cirrhosis of the liver in persons who have inherited two defective genes. Elevated copper levels have also been linked to worsening symptoms of Alzheimer's disease. In the US, the Occupational Safety and Health Administration (OSHA) has designated a permissible exposure limit (PEL) for copper dust and fumes in the workplace as a time-weighted average (TWA) of 1 mg/m.
Health effects of coal ash the particle will be inhaled into the lungs. As a result, the toxic particles can inflame the lungs causing severe damage to the body. Furthermore, coal ash dust can enter the body through the nose causing damage to the brain directly. However, regardless of particle entry, the toxicity from coal ash can cause harm to major body parts such as the brain, lungs, heart, liver, kidneys, stomach and intestines. Thus, individuals working near coal ash surface impoundments or landfills are at increased risk for many serious health problems. Lead: The exposure of lead in coal ash can cause major damage