. Coal dust is an established toxicant.
Is coal dust a targeted toxicant?
Coal dust is an established toxicant. What is the dose, route of exposure and mechanism of action that causes black lung disease? 2.
Is coal dust a chemical or physical toxicant?
Physical toxicants are substances that, due to their physical nature, interfere with biological processes. Examples include coal dust, asbestos fibers or finely divided silicon dioxide, all of which can ultimately be fatal if inhaled.
What is a systemic toxicant?
A systemic toxin is one that affects the entire body or many organs rather than a specific site. For example, potassium cyanide is a systemic toxicant in that it affects virtually every cell and organ in the body by interfering with the cell’s ability to utilize oxygen.
Why is coal dust more dangerous than coal?
Coal dust suspended in air is explosive—coal dust has far more surface area per unit weight than lumps of coal, and is more susceptible to spontaneous combustion. As a result, a nearly empty coal store is a greater explosion risk than a full one.
What are the dangers of being a coal miner?
Mining health safety – 7 common risks to protect yourself against
- Coal dust. Dust inhalation or coal dust is one of the most common concerns for miners. …
- Noise. …
- Whole body vibration. …
- UV Exposure. …
- Musculoskeletal disorders. …
- Thermal stress. …
- Chemical hazards.
How does coal dust affect the lungs?
It is common in coal miners and others who work with coal. It is similar to both silicosis from inhaling silica dust and asbestosis from inhaling asbestos dust. Inhaled coal dust progressively builds up in the lungs and leads to inflammation, fibrosis, and in worse cases, necrosis.
What are examples of toxic substances?
Here are some examples of natural toxic chemicals:
- Snake venom.
- Caffeine in coffee, tea, kola and cocoa.
- Ricin from castor beans.
- Hydrogen sulfide.
- Chlorine gas.
What is the most common target organ of toxicity?
For example, the central nervous system may be the target organ for toxicity from a chemical after acute exposure whereas the liver may be affected after chronic exposures. Chemicals can cause many types of toxicity by a variety of mechanisms.
What is systemic damage?
Systemic effect, an adverse effect of a medical treatment that affects the body as a whole, rather than one part.
Can coal dust make you sick?
1. Exposure to coal mine dust causes various pulmonary diseases, including coal workers’ pneumoconiosis (CWP) and chronic obstructive pulmonary disease (COPD). 2. Coal miners are also exposed to crystalline silica dust, which causes silicosis, COPD, and other diseases.
Can coal cause cancer?
Coal miners had significantly higher risk of any cancer, and those with 15+ years of experience had significantly higher risk of lung cancer.
What disease do coal miners get?
The two main types of pneumoconioses that affect miners are coal workers’ pneumoconiosis (CWP), commonly called black lung, and silicosis. CWP is associated with coal mining, but silicosis can affect workers in many types of mines and quarries, including coal mines.