Substances: Chlorpyrifos (SBPBAQFWLVIOKP-UHFFFAOYSA-N) Allethrin (ZCVAOQKBXKSDMS-UHFFFAOYSA-N) Empenthrin (YUGWDVYLFSETPE-JLHYYAGUSA-N) Systems: stream Keywords: pyrethroids toxicity stream Insecticides