Data Views Exclude Ubiquitous Chemicals Activities: 412 Chemicals w/Activities: 36 All Chemicals: 62 CSV Excel PDF Previous1234 Show all rows. Paginate rows. Click on column headings to sort table by that column # Activity Chemical Part All Plant Rhizome Root Seed Low PPM High PPM StdDev *Reference 0 WATER Root -- 790000.0 0.14 * 77 77 ZINC Root -- -- * *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.