Open AccessGREY WATER FOOTPRINT OF POINT SOURCES OF POLLUTION: THE CZECH REPUBLIC STUDY
Author(s) -
Libor Ansorge,
Lada Stejskalová,
Jiří Dlabal
Publication year - 2020
Publication title -
journal of urban and environmental engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.187
H-Index - 13
ISSN - 1982-3932
DOI - 10.4090/juee.2020.v14n1.144149
Subject(s) - pollution , environmental science , water quality , footprint , water pollution , water use , pollutant , wastewater , environmental engineering , geography , environmental chemistry , ecology , chemistry , archaeology , organic chemistry , biology
Grey Water Footprint is an indicator of anthropogenic pollution load into the inland water. The indicator is used for quantification of water needed for pollutant dilution to such an extent that the quality of the ambient water remains above agreed water quality standards of pollution discharged from point sources in the Czech Republic. Grey Water Footprint was calculated for 6 382 point pollution sources, recorded in the national register of wastewater discharges, from period 2009–2018. The domestic, industry and agriculture sectors were analyzed separately in the assessment. The total Grey Water Footprint of point sources of pollution varied between 1.90 × 1010 and 2.46 × 1010 m3/year. The Grey Water Footprint of domestic pollution represented about ¾ of the total Grey Water Footprint. The Grey Water Footprint of industrial pollution represented about ¼ of the total Grey Water Footprint. The Grey Water Footprint of agricultural point sources of pollution can be neglected on the national level in the Czech Republic. In most cases, the Grey Water Footprint is determined by ammonium nitrogen (NH4-N).