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Query: "keywords" (passive sampling) .

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1.
Control of organic contaminants in groundwater by passive sampling and multivariate statistical analysis
Anja Koroša, Nina Mali, 2022, original scientific article

Abstract: Organic contaminants in groundwater are among the most challenging chemical compound contaminants today, particularly when it comes to understanding their occurrence, origin, and relations in groundwater, as well as the transport processes, fate, and environmental impacts involved. This paper presents the use of active carbon fibre (AFC) passive sampling and multivariate statistical processing of the results to predict the possible occurrence of organic compounds (OCs) in groundwater and to determine the origin of various anthropogenic activity. This study aims to deepen our knowledge on the control of OCs in groundwater by introducing a multi-analytical and multielemental holistic approach, using the Dravsko polje aquifer, the largest intergranular aquifer in Slovenia, as an example.
Keywords: compounds of concern, groundwater contaminants, organic compounds, passive sampling
Published in DiRROS: 22.06.2022; Views: 561; Downloads: 223
.pdf Full text (11,61 MB)

2.
Passive sampling with active carbon fibres in the determination of organic pollutants in groundwater
Primož Auersperger, Anja Koroša, Nina Mali, Brigita Jamnik, 2022, original scientific article

Abstract: Legislation addressing the quality of groundwater and increasing concerns over public health calls for the development of analytical methods that can produce accurate and precise results at the ppt level. Passive sampling has been recognised as a helpful tool in identifying various organic pollutants in groundwater, even when their presence had not yet been identified through conventional groundwater quality monitoring. The article presents an analytical method involving a simple and cost-effective passive sampling device using Zorflex® activated carbon fibres (ACFs) for the qualitative monitoring of a broad range of organic pollutants in water in a single run. The applicability of the method developed was tested in three hydrogeological studies. In the first case, we present a non-targeted qualitative screening and a list of 892 different contaminants detected in the groundwater in Slovenia. In the second case, we discuss the presence and origin of organic compounds in the groundwater from a pilot area of the urban aquifer, Ljubljansko polje. The third case presents a comparison of results between passive and grab sampling. Passive sampling with ACFs confirmed the presence of a pollutant, even when it had not been previously detected through a quantitative method.
Keywords: GC-MS, organic pollutants, qualitative analysis, passive sampling, groundwater
Published in DiRROS: 03.03.2022; Views: 658; Downloads: 276
.pdf Full text (3,83 MB)

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