Figure 2
Geographical map of Slovakia and Bratislava with the districts. Green districts collect sewage to wastewater treatment plant (WWTP) Bratislava—Centrum (Vrakuna), represent 450,000 inhabitants. Red districts are areas containing sewage to WWTP Bratislava-Petrzalka representing 125,000 inhabitants. Map of Slovakia (https://sk.wikipedia.org/wiki/S%C3%BAbor:Slovakia_-_outline_map.svg) is licensed Creative Commons Attribution-ShareAlike 3.0 license. The license terms can be found on the following link: https://creativecommons.org/licenses/by-sa/3.0/. Map of Bratislava (https://sk.m.wikipedia.org/wiki/S%C3%BAbor:Bratislava_boroughs_outline_map.svg) is licensed Creative Commons Attribution-ShareAlike 4.0 license. The license terms can be found on the following link: https://creativecommons.org/licenses/by-sa/4.0/deed.cs (Edited by Tamas M, Inkscape, 1.0beta1, https://inkscape.org/).
