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- $Unique_ID{BRK00939}
- $Pretitle{}
- $Title{Dangers of Ceramics Craft}
- $Subject{ceramics Accidents accident Poisonings breathe breathing lung lungs
- clay glazes pottery kiln gases alumina asbestos diatomaceous earth feldspar
- iron oxide kaolin air borne particles lead copper cobalt arsenic trioxide
- antimony oxide beryllium boric acid Central nervous system depression heavy
- metal poisoning carbon monoxide chlorine gas hydrochloric sulfur dioxide}
- $Volume{O-5}
- $Log{}
-
- Copyright (c) 1991-92,1993 Tribune Media Services, Inc.
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- Dangers of Ceramics Craft
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-
- QUESTION: They are about to offer a ceramics course at in our community
- center that my wife very much wishes to take. I know I have read about the
- dangers of getting near some of the materials they intend to use, and don't
- wish to expose my wife to them. Please tell her not to go.
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-
- ANSWER: That would be most undiplomatic on my part, but I will happily detail
- some of the dangers as well as precautions to take, and allow you and your
- wife to continue the discussion with the following material in hand. There
- are three major elements that pose a hazard to good health in ceramics. They
- are the clay components themselves, the glazes or materials used to color and
- decorate the pottery, and finally the gases that may be emitted when baking
- the work in a kiln. Some of the materials found in certain clays include
- alumina, asbestos (as a contaminant of talc used in preparing porcelain),
- diatomaceous earth (raw material for clay), feldspar, iron oxide and kaolin
- (raw material for china clay). The danger lies not in touching these
- materials, but from breathing small air-borne particles, which may provoke a
- variety of lung disease. Glazes contain a number of toxic chemicals including
- lead, copper, cobalt, arsenic trioxide, antimony oxide, beryllium, boric acid
- among others. Central nervous system depression, heavy metal poisoning and
- skin rashes are some of the possible results of prolonged and excessive
- exposure. Though no published reports exist about exposure to kiln produced
- gases, they do contain carbon monoxide, chlorine gas, hydrochloric acid vapor,
- sulfur dioxide and others, and in cases where there is a kiln malfunction,
- could be dangerous. However, a few simple precautions and many of these
- dangers are rapidly removed. The studio should be kept free of dust, and be
- well ventilated. Keep glazes and clays in slurry form when possible, rather
- than as dry powders. Glazes are best applied by dipping or brushing, rather
- than spraying. Protective clothing, gloves, aprons and overalls should always
- be worn, and careful personal hygiene with frequent hand washing is a must.
- No eating should be allowed in the studio, nor food storage. Just a bit of
- attention to these rules will certainly permit a danger-free experience in the
- pleasures of ceramics.
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-
- The material contained here is "FOR INFORMATION ONLY" and should not replace
- the counsel and advice of your personal physician. Promptly consulting your
- doctor is the best path to a quick and successful resolution of any medical
- problem.
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