Qualitative fingerprinting of psychoactive pharmaceuticals, illicit drugs, and related human metabolites in wastewater: A year-long study from Riga, Latvia Posted on August 23, 2022August 23, 2022 By sdargoltz Ingus Perkons, Laura Elina Tomsone, Veronika Sukajeva, Romans Neilands, Kristina Kokina, and Iveta Pugajeva J Environ Chem Eng; 10(4); 2022 Access article Cannabis and Cannabinoids, Chemistry, Crime Scene Investigation and Reconstruction, Seized Drugs/Controlled Substances, Toxicology