Coal slag,which is otherwise a hazardous waste byproduct of coal power plants is a very inexpensive media. Beryllium in coal slag makes ittoxic and deadly. This follows the same pattern that blasting operations went through with sand,the original sandblasting media.
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What makes coal slag toxic?
Beryllium in coal slag makes it toxic and deadly. This follows the same pattern that blasting operations went through with sand, the original sandblasting media. Silica was known to be a carcinogen for many years before its use was discontinued in the US.
What are the dangers of blasting?
Health Hazards Abrasive blasting operations can create high levels of dust and noise. Abrasive material and the surface being blasted may contain toxic materials (e.g., lead paint, silica) that are hazardous to workers. Silica sand (crystalline) can cause silicosis, lung cancer, and breathing problems in exposed workers.
What is the OSHA hazard rating for coal slag?
OSHA (29 CFR 1910.1200) Classification of Coal Slag (CAS # 68476-96-0): Hazard Symbol Hazard Classification Signal Word Hazard Statement. Single Target Organ Toxicity (STOT) Repeated Exposure Category 2 (Respiratory System) Warning May cause damage to lungs (pulmonary fibrosis) through prolonged or repeated exposure.
What is coal slag used for?
This coal slag is used for a variety of industrial applications including abrasive blasting. The concern is that once the coal slag is blasted, the process releases the heavy metals into the air or they get absorbed by ground water.