From the Wiki article on Perchlorate:
Quote:
Low levels of perchlorate have been detected in both drinking water and groundwater in 35 states in the US according to the Environmental Protection Agency. In 2004, the chemical was also found in cow's milk in the area with an average level of 1.3 parts per billion ("ppb" or µg/L), which may have entered the cows through feeding on crops that had exposure to water containing perchlorates.[4] According to the Impact Area Groundwater Study Program [1], the chemical has been detected as high as 5 µg/L in Massachusetts, well over the state regulation of 2 µg/L[5]
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Does that mean there's no life on Earth as well?