Substances: 5-Methyl-Benzotriazole (LRUDIIUSNGCQKF-UHFFFAOYSA-N) Acetochlor-OXA (OTKTUNJJKYTOFF-UHFFFAOYSA-N) 1-Methyl-Benzotriazole (HXQHRUJXQJEGER-UHFFFAOYSA-N) Keywords: monitoring