Variables: concentration Keywords: sewer overflows monitoring accumulation pesticide Substances: carbamazepine (FFGPTBGBLSHEPO-UHFFFAOYSA-N) clarithromycin (AGOYDEPGAOXOCK-KCBOHYOISA-N) carbendazim (TWFZGCMQGLPBSX-UHFFFAOYSA-N) mecoprop (WNTGYJSOUMFZEP-UHFFFAOYSA-N) terbutryn (IROINLKCQGIITA-UHFFFAOYSA-N)