Concrete dust poisoning?

What are the symptoms of concrete dust or silica poisoning?
Answers:    Silicosis is classified into three types: chronic/classic, accelerated,
Chronic/classic silicosis, the most common, occurs after 15–20 years of moderate to low exposures to respirable crystalline silica. Symptoms associated beside chronic silicosis may or may not be obvious; therefore, workers need to enjoy a chest x-ray to determine if there is lung damage. As the disease progresses, the worker may experience shortness of breath upon exercising and have clinical signs of poor oxygen/carbon dioxide exchange. In the following stages, the worker may experience fatigue, extreme shortness of breath, chest pain, or respiratory failure.

Accelerated silicosis can occur after 5–10 years of elevated exposures to respirable crystalline silica. Symptoms include severe shortness of breath, weakness, and weight loss. The onset of symptoms take longer than in acute silicosis.
e silicosis occurs after a few months or as long as 2 years following exposures to extremely high concentrations of respirable crystalline silica. Symptoms of acute silicosis include severe disabling shortness of breath, tenderness, and weight loss, which often leads to disappearance.


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