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Federal Environmental Quality Guidelines

In 2013312nsp0183enspfederal environmental quality guidelines, the global cobalt concentration in relative primitive areas varies with bedrock types and surface geological conditions. The cobalt concentration in soil is generally 2025 mgkg, the cobalt content in surface fresh water is less than 181gl, the cobalt concentration in rainwater is less than 181gl, and the cobalt concentration in the atmosphere is 1 ngm3

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