Timeframe. The United States Postal Services reports that as of January 2011, it takes an average of one to three days for First-Class Mail to arrive at its destination. Priority Mail takes an average of one to two days to arrive, according to the USPS.USPS only includes the time a package stays in transit in their estimations.Packages dropped off at a post office during business hours usually leave that day. Packages dropped off after hours may take an additional day.he United States Postal Services reports that as of January 2011, it takes an average of one to three days for First-Class Mail to arrive at its destination.
Short-term: Excessive levels of nitrate in drinking water have caused serious illness and sometimes death. The serious illness in infants (aka Blue Baby Syndrome) is due to the conversion of nitrate to nitrite by the body, which can interfere with the oxygen-carrying capacity of the childs blood.
Given the litany of health effects associated with nitrate exposure and the uncertainty that this volume of evidence brings to the prediction of health risks, sound scientific judgment dictates that the U.S. EPA apply a safety factor of at least two to the current 10 PPM standard for nitrate-nitrogen in drinking water.