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Occurrence, distribution and removal of organic micro-pollutants in a low saline water body
- Source :
- Science of The Total Environment. 749:141319
- Publication Year :
- 2020
- Publisher :
- Elsevier BV, 2020.
-
Abstract
- A low saline backwater canal, mainly utilized for domestic and agricultural purposes, has been analyzed for the possible presence of organic micropollutants (OMP) and their potential removal was explored by multilayered microfiltration membranes. The qualitative as well as quantitative analysis were carried out for a span of one year using the technique of liquid chromatography connected with high resolution mass spectrometry (LC-Q-TOF-MS). The identification of the formally unknown compounds was initially done using non-target analysis based on the mass accuracy, isotopic pattern and MS/MS spectral interpretation. Results of the non target screening revealed the presence of 11 OMPs. Five of these OMPs were confirmed using standards; these include chlorophene (CHP), oxybenzone (OXY), N, N-diethyl-meta-toluamide (DEET), N, N-diethyl-benzamide (DEB) and dibutyl phthalate (DBP). Among the confirmed OMPs, the highest concentration was observed for DBP (244.61 ng l−1). The most frequently observed OMP in the study area was DBP while the least was DEB which is an insect repellent as well as a degradation product of DEET. The ecological risk associated with the target compounds has also been analyzed by calculating the risk quotient (RQ) and the results revealed that at the detected levels, these compounds are capable of causing low to medium risk. Low pressure (
- Subjects :
- Pollutant
Environmental Engineering
Chromatography
010504 meteorology & atmospheric sciences
Chemistry
Dibutyl phthalate
Portable water purification
010501 environmental sciences
Mass spectrometry
Saline water
01 natural sciences
Pollution
chemistry.chemical_compound
Environmental Chemistry
Oxybenzone
Waste Management and Disposal
Quantitative analysis (chemistry)
Insect repellent
0105 earth and related environmental sciences
Subjects
Details
- ISSN :
- 00489697
- Volume :
- 749
- Database :
- OpenAIRE
- Journal :
- Science of The Total Environment
- Accession number :
- edsair.doi.dedup.....b90541389b12ace7b62098cfb8644928