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 How is this determined?
How is this determined?
| herbicides 54 water 45 Atrazine 28 pesticides 27 soil 24 Simazine 14 Ametryn 10 nitrogen 9 Toxicity 9 Terbutryn 8 Terbuthylazine 7 sodium 6 agriculture 6 algae 5 Propazine 5 Olive 4 Diuron 4 salt 4 pollution 4 Fluometuron 4 agar 4 Sulfate 4 Tebuconazole 4 freshwater 4 Milk 4 Carrot 4 | precipitation 4 lead 4 carrots 4 Parathion 3 Toluene 3 corn 3 Heptachlor 3 Diquat 3 Chlorotoluron 3 Propiconazole 3 Mutagenic 3 Carbofuran 3 Silica 3 environment 3 skin 3 CO2 3 Chlorophyll 3 soil amendments 3 Fludioxonil 3 DDT 3 Parsley 3 Pea 3 Diazinon 3 Phosphorus 3 Dimethoate 3 |