TY - GEN AU - United Nations Environment Programme A4 - Gaddis, Erica A4 - Grobicki, Anna Maria A4 - Hay, Rowena A4 - Rast, Walter PY - 2019 SN - 978-92-807-3730-1 UR - https://wedocs.unep.org/handle/20.500.11822/27656 LA - English KW - freshwater KW - water quality KW - heavy metal TI - Global Environment Outlook 6 - Chapter 9 M3 - Flagship ER -