title: A review of ion and metal pollutants in urban green water infrastructures.
abstract: In urban environments, the breakdown of chemicals and pollutants, especially ions and metal compounds, can be favoured by green water infrastructures (GWIs). The overall aim of this review is to set the basis to model GWIs using deterministic approaches in contrast to empirical ones. If a better picture of chemicals and pollutant input and an improved understanding of hydrological and biogeochemical processes affecting these pollutants were known, GWIs could be designed to efficiently retain these pollutants for site-specific meteorological patterns and pollutant load. To this end, we surveyed the existing literature to retrieve a comprehensive dataset of anions and cations, and alkaline and transition metal pollutants incoming to urban environments. Based on this survey, we assessed the pollution load and ecological risk indexes for metals. The existing literature was then surveyed to review the metal retention efficiency of GWIs, and possible biogeochemical processes related to inorganic metal compounds were proposed that could be integrated in biogeochemical models of GWIs.
authors.affiliation: School of Civil Engineering, The University of Sydney, NSW 2006, Australia. Electronic address: imran.kabir@sydney.edu.au.
authors.forename: Md Imran
authors.initials: MI
authors.lastname: Kabir
authors.affiliation: Department of Civil Engineering, Monash University, Victoria 3800, Australia.
authors.forename: Edoardo
authors.initials: E
authors.lastname: Daly
authors.affiliation: School of Civil Engineering, The University of Sydney, NSW 2006, Australia.
authors.forename: Federico
authors.initials: F
authors.lastname: Maggi
mesh_terms: D004784:Environmental Monitoring; D007477:Ions; D008670:Metals / Q000032:analysis*; D008956:Models, Chemical; D014865:Waste Disposal, Fluid; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D007477:Ions; D008670:Metals; D014874:Water Pollutants, Chemical
keywords: Metal cycle; Micropollutants; Stormwater; Stormwater control measures; Water sensitive urban design