discuss how MCLG and MCL for non-carcinogens and carcinogens are developed
MCLG - Maximum contamination level goal and MCL - Maximum contamination level
MCLG -level of protection that can be provode against any
adverse health effect after exposure to contamination.
For non carcinogens contamination MCLG based on Agency verified
Reference dose adjusted the drinking water exposure. For carcinogen
there is no threshold level so EPA set MCLG for carcinogrn at
zero.
MCL - EPA specifies the treatment technique for
contamination.
In non carciogen contamination MCL = MCLG because EPA believes that
PWS provide this level of protection.
For carcinogen it is impossibly eliminate the contamination and
does not set an zero.
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