| Autor: |
Bazarsadueva SV; Baikal Institute of Nature Management, Siberian Branch of the Russian Academy of Sciences, Sakhyanovoi St., 6, 670047 Ulan-Ude, Russia., Taraskin VV; Baikal Institute of Nature Management, Siberian Branch of the Russian Academy of Sciences, Sakhyanovoi St., 6, 670047 Ulan-Ude, Russia., Budaeva OD; Baikal Institute of Nature Management, Siberian Branch of the Russian Academy of Sciences, Sakhyanovoi St., 6, 670047 Ulan-Ude, Russia., Nikitina EP; Baikal Institute of Nature Management, Siberian Branch of the Russian Academy of Sciences, Sakhyanovoi St., 6, 670047 Ulan-Ude, Russia., Zhigzhitzhapova SV; Baikal Institute of Nature Management, Siberian Branch of the Russian Academy of Sciences, Sakhyanovoi St., 6, 670047 Ulan-Ude, Russia., Shiretorova VG; Baikal Institute of Nature Management, Siberian Branch of the Russian Academy of Sciences, Sakhyanovoi St., 6, 670047 Ulan-Ude, Russia., Bazarzhapov TZ; Baikal Institute of Nature Management, Siberian Branch of the Russian Academy of Sciences, Sakhyanovoi St., 6, 670047 Ulan-Ude, Russia., Radnaeva LD; Baikal Institute of Nature Management, Siberian Branch of the Russian Academy of Sciences, Sakhyanovoi St., 6, 670047 Ulan-Ude, Russia.; Department of Pharmacy of the Medical Institute, Banzarov Buryat State University, 670000 Ulan-Ude, Russia. |
| Abstrakt: |
The increasing consumption of phthalates (PAEs), along with their high toxicity and high mobility, poses a threat to the environment. This study presents initial data on the contents of six priority PAEs in the water of lakes located on the eastern shore of Lake Baikal-Arangatui, Bormashevoe, Dukhovoe, Kotokel, and Shchuchye. The mean total concentrations of the six PAEs in lakes Arangatui and Bormashevoe (low anthropogenic load) were comparable to those in Kotokel (medium anthropogenic load, 17.34 µg/L) but were significantly higher (p < 0.05) than in Dukhovoe and Shchuchye (high anthropogenic load, 10.49 and 2.30 µg/L, respectively). DBP and DEHP were the main PAEs in all samples. The DEHP content in lakes Arangatui and Bormashevoe was quite high, and at some sampling sites it exceeded the MACs established by Russian, U.S. EPA, and WHO regulations. The assessment showed that there is no potential risk to humans associated with the presence of PAEs in drinking water. However, the levels of DEHP, DBP, and DnOP in the water pose a potential threat to sensitive aquatic organisms, as shown by the calculated risk quotients (RQs). It is assumed that the origin of the phthalates in the studied lakes is both anthropogenic and biogenic. |
