CONTAMINANTS
2018-03-07 09:59:48.0 [tstevens] update Definition (Metals in extremely small quantities, almost at the molecular level, that reside in or are present in animal and plant cells and tissue.);
2018-03-07 09:39:39.0 [tstevens] update Definition (Trace metals are metals in extremely small quantities, almost at the molecular level, that reside in or are present in animal and plant cells and tissue.); update Definition (Environmental Protection Agency );
2018-03-07 08:52:24.0 [tstevens] Move Concepts delete broader relation (null); add broader relation (TRACE METALS [f2d6aa01-5070-4147-bae1-4b2cad2c3987,86265] - CONTAMINANTS [42c6d91b-afef-4638-95c5-0d130828b2e7,84623]);
Metals in extremely small quantities, almost at the molecular level, that reside in or are present in animal and plant cells and tissue.
TRACE METALS