The human toxicity data is frightening. Locals are reporting nausea and dizziness, which suggests concentrations in range of 10,000 - 20,000 ppm. But cumulative exposure to a few ppm over a few years ( >/= 865 ppm-years) is known to cause cancer.
The human toxicity data is frightening. Locals are reporting nausea and dizziness, which suggests concentrations in range of 10,000 - 20,000 ppm. But cumulative exposure to a few ppm over a few years ( >/= 865 ppm-years) is known to cause cancer.
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