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Explain why a chemical with a long-half life may create problems in the environment?
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Contamination if it gets into the food supply or water supply.
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Mefenamic acid (Ponstan Forte) has a half life of 2 hours.
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What are your choices?
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See later post.
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Uranium-238 has half life of 4.51 * 10^9 years
Uranium-234 has half life of 2.48 * 10^5 years Thorium-230 has half life of 8.0 *
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