RETURN TO ISSUEPREVNewsNEXTPOTOMAC POSTSCRIPTSFDA begins hearing to establish tolerances for poisonous residues on fruits and vegetables . . . Complete hearing will probably last full yearROBERT GIBBSCite this: Chem. Eng. News 1950, 28, 5, 310Publication Date (Print):January 30, 1950Publication History Published online5 November 2010Published inissue 30 January 1950https://pubs.acs.org/doi/10.1021/cen-v028n005.p310https://doi.org/10.1021/cen-v028n005.p310newsACS PublicationsCopyright © 1950 AMERICAN CHEMICAL SOCIETYArticle Views3Altmetric-Citations-LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access options SUBJECTS:Food,Industrial manufacturing,Pharmaceuticals,Plant derived food,Toxicity Get e-Alerts