Data Views Exclude Ubiquitous Chemicals Activities: 291 Chemicals w/Activities: 21 CSV Excel PDF All Chemicals: 36 Previous12 Show all rows. Paginate rows. Click on column headings to sort table by that column # Activity Chemical Part All Leaf Plant Root Low PPM High PPM StdDev *Reference 1 1 SODIUM Root 440.0 4855.0 1.75 * *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.