Variables: concentration Keywords: monitoring pesticide Substances: diuron (XMTQQYYKAHVGBJ-UHFFFAOYSA-N) carbamazepine (FFGPTBGBLSHEPO-UHFFFAOYSA-N) diclofenac (DCOPUUMXTXDBNB-UHFFFAOYSA-N) mecoprop (WNTGYJSOUMFZEP-UHFFFAOYSA-N) carbendazim (TWFZGCMQGLPBSX-UHFFFAOYSA-N) terbutryn (IROINLKCQGIITA-UHFFFAOYSA-N)