naa a22 4500 51075256X CHVBK 20180411083110.0 cr unu---uuuuu 180411e20130201xx s 000 0 eng 10.1007/s11270-012-1413-0 doi (NATIONALLICENCE)springer-10.1007/s11270-012-1413-0 Photodegradation of Detergent Phosphorus in Aquatic Environment [Elektronische Daten] [Waldemar Grzybowski, Jerzy Szydłowski] Eutrophication potential of anthropogenic phosphorus depends on its bioavailability. Here, we present the proof that the main component of washing powders, sodium triphosphate (also known as sodium tripolyphosphate—STPP), can be photodegraded to orthophosphate. The process was studied under simulated sunlight in coastal and river water samples, distilled water, and solution of humic substances. Irradiation of samples enriched with STPP (130μM P) resulted in release of up to 1μM of orthophosphate. The measurable effects were observed solely in presence of inorganic matrix. It may suggest that degradation of STPP is driven mainly by the direct energy transfer from photo-excited colored dissolved organic matter: both sodium triphosphate and humic substances are negatively charged at natural water pH and presence of cations abates electrostatic repulsion between them. In this case, absorption of the sample remains the main factor affecting efficiency of the degradation. Springer Science+Business Media Dordrecht, 2013 Photodegradation nationallicence Detergents nationallicence Polyphosphate nationallicence Humic substances nationallicence Grzybowski Waldemar Institute of Oceanography, Gdansk University, Al. Pilsudskiego 46, 81-378, Gdynia, Poland aut Szydłowski Jerzy Institute of Oceanography, Gdansk University, Al. Pilsudskiego 46, 81-378, Gdynia, Poland aut Water, Air, & Soil Pollution Springer Netherlands 224/2(2013-02-01), 1-5 0049-6979 224:2<1 2013 224 11270 https://doi.org/10.1007/s11270-012-1413-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11270-012-1413-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Grzybowski Waldemar Institute of Oceanography, Gdansk University, Al. Pilsudskiego 46, 81-378, Gdynia, Poland aut NATIONALLICENCE 700 1- Szydłowski Jerzy Institute of Oceanography, Gdansk University, Al. Pilsudskiego 46, 81-378, Gdynia, Poland aut NATIONALLICENCE 773 0- Water, Air, & Soil Pollution Springer Netherlands 224/2(2013-02-01), 1-5 0049-6979 224:2<1 2013 224 11270 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer