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In Reply In 2008, the Food and Drug Administration (FDA) specified a 23-µg/L (or parts per billion) “level of concern” for arsenic in apple and pear juice, noting that samples exceeding this level would be considered, along with “other factors,” to determine whether regulatory action would be needed. Neither the other factors nor the nature of the regulatory action were specified.1
Navas-Acien A, Nachman K. Arsenic in Rice and Other Foods—Reply. JAMA Intern Med. 2014;174(2):298-299. doi:10.1001/jamainternmed.2013.11990