Molecular formula :
nature : To protect human health and safeguarding the ecological balance, according to the state's environmental regulations and policies, the comprehensive analysis of the natural environment, pollution control technologies, economic conditions and social requirements on the basis of provisions of contaminants in the environment to allow content and source of pollutants discharged and the total concentration of legally binding limits. The various existing environmental standards are mainly environmental quality standards and pollutant discharge standards two categories, they are environmental quality assessment, environmental impact assessment, and evaluation of environmental pollution on the sewage sector units for the management and supervision of the basis.
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