J 2017

Insights into natural organic matter and pesticide characterisation and distribution in the Rhone River

SLOMBERG, Danielle L., Patrick OLLIVIER, Olivier RADAKOVITCH, Nicole BARAN, Nicole SANI-KAST et. al.

Basic information

Original name

Insights into natural organic matter and pesticide characterisation and distribution in the Rhone River

Authors

SLOMBERG, Danielle L. (250 France), Patrick OLLIVIER (250 France), Olivier RADAKOVITCH (250 France), Nicole BARAN (250 France), Nicole SANI-KAST (250 France), Auguste BRUCHET (250 France), Martin SCHERINGER (756 Switzerland, guarantor, belonging to the institution) and Jerome LABILLE (250 France)

Edition

Environmental Chemistry, Vic, Australia, CSIRO PUBLISHING, 2017, 1448-2517

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10406 Analytical chemistry

Country of publisher

Australia

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 2.923

RIV identification code

RIV/00216224:14310/17:00100130

Organization unit

Faculty of Science

UT WoS

000392205800008

Keywords in English

SIZE-EXCLUSION CHROMATOGRAPHY; BOTTOM NEPHELOID LAYER; SURFACE WATERS; MASS-SPECTROMETRY; MOLECULAR CHARACTERIZATION; MEDITERRANEAN SEA; ALLUVIAL AQUIFER; DELTA FRANCE; GC-MS; CARBON

Tags

Tags

International impact, Reviewed
Změněno: 5/4/2018 14:23, Ing. Nicole Zrilić

Abstract

V originále

Thorough characterisation of natural organic matter (NOM) in natural surface waters remains vital for evaluating pollutant dynamics and interactions with NOM under realistic environmental conditions. Here, we present the characterisation of NOM and pesticide compositions for nine sampling sites over the length of the Rhone River, also evaluating the advantages and limitations of different analytical techniques to determine how they complement one another. Together with dissolved and particulate organic carbon analyses, the dissolved organic matter (DOM, <0.8 mu m) or NOM (unfiltered organic matter) was characterised with gel permeation chromatography, the polarity rapid-assessment method, excitation-emission matrix fluorescence, and pyrolysis-gas chromatography-mass spectrometry to evaluate both composition and distribution. An additional objective was the determination of the NOM degradation state (i.e. constantly produced autochthonous or weakly degraded allochthonous species), an important factor in assessing potential NOM-pollutant interactions. The NOM compositions (i.e. proteins, polyhydroxy aromatics, polysaccharides, amino sugars) and proportions were similar between sites, but variations were observed in the relative proportions of autochthonous and allochthonous material from north to south. Anionic proteins and polyhydroxy aromatics in a molecular weight range of similar to 1000-1200 Da comprised the majority of the DOM. As a pollutant case study, five pesticides (glyphosate, metalochlor, chlortoluron, isoproturon, propyzamide) and some of their metabolites (aminomethylphosphonic acid, metolachlor ethanesulfonic acid and metolachlor oxanilic acid) were measured. Several exhibited trends with the NOM, particulate organic carbon and suspended particulate matter distributions in the Rhone waters, suggesting a significant influence on pesticide fate and transport in the river.