RfD is defined by the EPA as, "an estimate of a daily oral exposure to the human population (including sensitive subgroups such as children) that is not likely to cause harmful effects during a lifetime." See the definition of reference dose on the EPA website ยป...
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How can citizens find out if there is perchlorate in their own drinking water supplies?
The easiest way to obtain this information is to call their local water company. Or, if their water service is provided by a municipal utility, citizens can contact the customer service center (usually listed on their utility bill) and get information on who their...