由于没有其他环境砷污染，水砷含量高是自然形成的，因此属于饮水型地方性砷中毒。

Because of natural high arsenic in drinking water and no pollution else, it was drinking water type of endemic arsenicosis.

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甲基化在砷诱导的皮肤损害中起重要作用，饮水型地方性砷中毒病区人群女性甲基化能力高于男性。

Arsenic methylation ability make important role in skin lesion caused by arseniasis-endemic, arsenic methylation ability is higher in women than in men who live in arseniasis-endemic areas.

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