Noise can cause a wide range of physiological problems, including increased heart rate, blood pressure, breathing rate, muscular contractions and perspiration. Psychological effects can include nervousness, tension, anger and irritability. Acute exposure to high intensity, continuous noise affects the sensory cells in the cochlea of the inner ear, causing a temporary hearing loss. Dust produced by the placing and burning of the coal in the forge can cause symptoms similar to chronic bronchitis and emphysema. Placing hot objects into water will produce steam which can burn.
Fire can burn, always be aware of the fire and control the heat.
Soot produced by the burning of coal can get into your eyes. Cuts from sharp objects. Radiation Infrared radiation can cause skin burns, chronic eye inflammation, and heat cataracts due to burning of the len's of the eye. The placing of cold and or moist objects into a hot fire can cause explosions due to the temperature and moisture content difference between the object and the fire. Strains Muscle strain from using hand tools for extended periods of time.