Modern Methods for Analysis of Water and Related Environmental Samples

A special issue of Water (ISSN 2073-4441). This special issue belongs to the section "Water Quality and Contamination".

Deadline for manuscript submissions: closed (30 April 2023) | Viewed by 1521

Special Issue Editors


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Guest Editor
Faculty of Sciences and Technologies, University of Lille, Lille, France
Interests: analytical method development; organic micropollutants in the environment (water, soil, sediment and biota); wastewater treatment; removal of organic micropollutants; measurements; advanced (photo)oxidation; catalyzed oxidation; tertiary treatment; biological treatment
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Guest Editor
Faculty of Sciences and Technologies, University of Lille, Lille, France
Interests: behavior of trace metal elements at the water-sediment interface: level of contamination, flux (benthic and diffusive) and interactions with sulfides; metallic speciation in sedimentary compartments; impact of metallic and sulfur pressure on benthic ecosystems (worms, bacteria, etc.); development of new analytical tools adapted to in situ measurements (by electrochemical methods for the measurement of ETM and silicates and by passive sensors (DGT) for the measurement of ETM, phosphates, pH and sulfides)

Special Issue Information

Dear Colleagues,

Water pollution has become a source of serious concern, which requires additional research to better protect natural water resources. Appropriate solutions will be best provided by an improved understanding of the behavior and fate of the pollutants and the potential impacts. Nevertheless, to both quantitatively and qualitatively protect water resources and the entire environment, the tools required to provide a diagnosis of the current state of the environment must be defined. Currently, several appropriate techniques for the characterization of environmental matrices are available. However, no technique is appropriate to study all of the various pollutants present in the environment, because each of them allows access to a specific resolution. Each technique does not have the same performance, nor the same operating cost and does not provide the same information. If the various techniques operate differently, they can be alternatives or complementary to each other. Sampling, extraction, sample preparation and analysis techniques have been improved continuously and depend on the scientific and technical evolution. This Special Issue focuses on the modern methods for the sample preparation and the analysis of water and related environmental samples.

Large materials of chemicals substances are widely used in the composition of industrial, household and agricultural products. Due to their widespread application, organic and inorganic pollutants are contiuously dispersed in the environment, and water act as final receptors of the pollutants. Moreover, some natural substances contribute to the modification of water quality. The natural environment, particularly the aquatic medium, are heavily impacted due to the antropogenic pressure and climate change.

The preservation of water in the natural environment is a key issue for durable development. However, despite the need to protect water resources and ecosystems quantitatively and qualitatively is established, the tools to provide a holistic diagnosis of the current state of the pollution sources and the appropriate preservation techniques remains to be identified. Indeed, for the characterisation and protection of the natural environment, the development of robust, sensitive and selective methods is the essential step. To date, numerous techniques have been proposed for the analysis of water and the related environment. This Special Issue of Water will focus on modern methods of analysis for water and related environmental samples. This could include the extraction and sample preparation technique or the identification and quantification of organic and inorganic pollutants. It also concerns the novel method for the characterisation of physico-chemical properties of the aquatic medium. Original research articles, reviews, and short communications are all welcome.

Dr. Sopheak Net
Dr. Ludovic Lesven
Guest Editors

Manuscript Submission Information

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Keywords

  • analytical method development
  • sample preparation
  • water analysis
  • analytical chemistry
  • water-sediment interface
  • emerging pollutants
  • soil analysis
  • metal contamination
  • organic pollutants
  • elemental speciation
  • instrumental analytical chemistry
  • environmental pollution/Contamination
  • non-target, suspect and target screening

Published Papers (1 paper)

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Research

14 pages, 3591 KiB  
Article
Application of Same-Day Enterococcus qPCR-Based Analyses for Quality Assessment of Shorelines (Water and Sand) at Recreational Beaches
by Faizan Saleem, Thomas A. Edge and Herb E. Schellhorn
Water 2023, 15(13), 2338; https://doi.org/10.3390/w15132338 - 24 Jun 2023
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Abstract
Rapid water-quality monitoring methods for beach water and sand can be helpful for public health authorities to develop comprehensive beach monitoring programs. In this study, we evaluated the performance of the Enterococcus qPCR (USEPA 1609.1) method for quality monitoring of beach water and [...] Read more.
Rapid water-quality monitoring methods for beach water and sand can be helpful for public health authorities to develop comprehensive beach monitoring programs. In this study, we evaluated the performance of the Enterococcus qPCR (USEPA 1609.1) method for quality monitoring of beach water and sand-porewater at two Niagara region beaches in Ontario, Canada (Lakeside and Sunset Beaches). While the USEPA 1609.1 method has been validated for beach water, its potential for assessing associated beach sands (which may function as a microbial reservoir) has not been fully explored. All beach water samples (n = 168) passed the qPCR quality control (QC). However, only 20 out of 48 (41.7%) sand-porewater samples passed the qPCR QC, potentially due to interference by soluble inhibitors. The proportion of the sand-porewater samples passing QC improved slightly to 63 out of 120 (52.5%) with a prefiltration step to remove sand and other large particles. The faecal indicator density in the sand-porewater, tested in parallel, did not correlate with the beach water faecal indicator density. Comparing beach water data for the same-day Enterococcus qPCR threshold with the previous-day E. coli culturing-based threshold across all beach days tested, Enterococcus qPCR analyses identified 3 (7%) and 7 (16%) false positive/lost beach days for Lakeside and Sunset Beaches, respectively. Additionally, of the total beach days tested, Enterococcus qPCR analyses identified 2 (5%) and 1 (2%) false negative/health-risk days for Lakeside and Sunset Beaches, respectively. Sand-porewater testing analyses identified days when faecal indicators (in the sand) exceeded beach water quality thresholds. Compared with conventional E. coli culturing, use of the same-day qPCR method would result in fewer beach postings and could identify several additional health-risk days (when the beaches may not be posted). Future studies could include additional prefiltration steps or modifications in the Enterococcus qPCR protocol to improve the method’s applicability for sand quality monitoring. Full article
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