Variables: concentration Substances: fipronil (ZOCSXAVNDGMNBV-UHFFFAOYSA-N) carbendazim (TWFZGCMQGLPBSX-UHFFFAOYSA-N) mecoprop (WNTGYJSOUMFZEP-UHFFFAOYSA-N) terbutryn (IROINLKCQGIITA-UHFFFAOYSA-N) Keywords: pharmaceutical monitoring polar organic pollutant pesticide