Data Views Total Plants: 3 CSV Excel PDF Total Activities: 5 Click on column headings to sort table by that column Plant Part All Plant Root Seed Low PPM High PPM StdDev *Reference Apium graveolens Plant -- -- * Daucus carota Root -- 100.0 * Daucus carota Seed -- -- * *Unless otherwise noted all references are to Duke, James A. 1992. Handbook of phytochemical constituents of GRAS herbs and other economic plants. Boca Raton, FL. CRC Press.