Craig
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Safety considerations
The absorbent qualities of diatomite can result in a significant drying of the hands, if handled without gloves. The saltwater (industrial) form contains a highly crystalline form of silica, resulting in sharp edges. The sharpness of this version of the material makes it dangerous to breathe and a dust mask is recommended when working with it.
The type of hazard posed by inhalation depends on the form of the silica. Crystalline silica poses a serious inhalation hazard because it can cause silicosis. Amorphous silica can cause dusty lungs, but does not carry the same degree of risk as crystalline silica. Food-grade diatomite generally contains very low percentages of crystalline silica. Diatomite produced for pool filters is treated with heat, causing the formerly amorphous silicon dioxide to assume its crystalline form.
In the United States, the crystalline silica content in the dusts is regulated by the Occupational Safety and Health Administration (OSHA), and there are guidelines for the maximum amounts allowable in the product and in the air near the breathing zone of workers.
CAUTIONS:
If you have asthma or some other lung ailment, either wear a mask or be very careful when using food grade diatomaceous earth.
Do NOT get diatomaceous earth in the eyes. DE is drying to the eyes, so do NOT put it out when you or your pets are down wind of it. DE is drying to your skin, hands, and feet, just as it can be to your pets.
Do NOT give to very small pregnant animals such as cats, guinea pigs, etc. and do NOT feed continually to babies or small animals such as cats, hamsters, etc. DE can be fed on a continuous basis to larger animals and livestock for continuous parasite control and mineralization.
Do NOT use heavily in carpet. Some advise too much DE causes vacuum problems.
NEVER use pool filter grade DE around animals. It can poison or kill them.
Some people experience a healing crisis (detox reaction) when beginning DE consumption. If this occurs, reduce the dose, till your body is cleansed, and then increase to the RDA.
Remember, DE will kill beneficial insects as well, so use accordingly.