This work presents the results of an international interlaboratory comparison on ex situ passive sampling in sediments. The main objectives were to map the state of the science in passively sampling sediments, identify sources of variability, provide recommendations and practical guidance for standardized passive sampling, and advance the use of passive sampling in regulatory decision making by increasing confidence in the use of the technique. The study was performed by a consortium of 11 laboratories and included experiments with 14 passive sampling formats on 3 sediments for 25 target chemicals (PAHs and PCBs). The resulting overall interlaboratory variability was large (a factor of ∼10), but standardization of methods halved this variability. The remaining variability was primarily due to factors not related to passive sampling itself, i.e., sediment heterogeneity and analytical chemistry. Excluding the latter source of variability, by performing all analyses in one laboratory, showed that passive sampling results can have a high precision and a very low intermethod variability (
Download full-text PDF
Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5863099 PMC http://dx.doi.org/10.1021/acs.est.7b05752 DOI Listing Publication Analysis
Top Keywords
Similar Publications
Land-derived metals impact the survival and settlement of larval mussels.
Environ Pollut
January 2025
Cawthron Institute, 98 Halifax Street East, Nelson, 7010, New Zealand.
Global declines in wild mussel populations and production have been linked to the impacts of climate change and pollution. Summer die-offs of mussels (Perna canaliculus), spat retention issues, and a severe decline in mussel spat settlement have been reported in the Marlborough Sounds, an important area for mussel farming in New Zealand. Preliminary evidence suggests that naturally occurring contaminants and changing land use in the surrounding areas, could contribute to the decline of this species.
View Article and Find Full Text PDFA POCIS-based approach for the monitoring of pharmaceuticals in wastewater treatment plants: Calibration and deployment challenges.
Environ Pollut
January 2025
Department of Analytical and Applied Chemistry, School of Engineering, IQS-Universitat Ramon Llull, Via Augusta 390, 08017 Barcelona, Spain.
Article Synopsis
- The study investigates the use of Polar Organic Chemical Integrative Samplers (POCIS) as a more effective method for monitoring pharmaceutical residues in wastewater compared to traditional grab sampling.
- POCIS allows for continuous sampling over days or weeks, providing more representative data, though challenges remain in obtaining precise quantitative results due to calibration needs.
- The research successfully identifies and calibrates sampling rates for 49 pharmaceuticals in a wastewater treatment plant near Barcelona, yielding high concentrations of specific compounds, thus establishing a methodology for better environmental monitoring of pharmaceuticals.
Infant Passive Protection Against Coronavirus Through Exclusive Breastfeeding: A Cross-Sectional Study.
Nutrients
December 2024
National Institute of Women, Children and Adolescents Health Fernandes Figueira-Fiocruz, Rio de Janeiro 22250-020, Brazil.
Background/objectives: This study aimed to determine the percentage and duration of neutralizing antibodies against the Omicron variant in human milk after vaccination against SARS-CoV-2, considering the three different vaccine technologies approved in Brazil.
Methods: A cross-sectional study was conducted with lactating women who received the complete vaccination cycle with available vaccines (AstraZeneca, Pfizer, CoronaVac, and Janssen). The participants resided in Rio de Janeiro, and samples were collected from April to October 2022.
Dynamic Electrochemical Impedance Spectroscopy in Galvanostatic Mode as a Tool for Passive Layer State Monitoring in a Chloride Solution Under a Mechanical Load.
Materials (Basel)
January 2025
Department of Corrosion and Electrochemistry, Faculty of Chemistry, Gdansk University of Technology, Narutowicza 11/12 Str., 80-233 Gdansk, Poland.
Mechanical stress is one of the factors influencing the initiation of pitting corrosion and deterioration of the protective properties of the passive layer on stainless steel. The tests carried out on AISI 304L stainless steel showed that, in the 3.5% NaCl environment for samples loaded in the elastic and plastic range, no pitting corrosion initiation was observed.
View Article and Find Full Text PDFAn Azide-based Passive Sampler for Monitoring Abiotic Reduction of Chlorinated Solvent Contaminants in Groundwater.
Chemosphere
January 2025
Department of Civil and Environmental Engineering, University of Massachusetts Lowell, Massachusetts, United States. Electronic address:
There is significant interest in monitoring abiotic decomposition of chlorinated solvents at contaminated sites due to large uncertainties regarding the rates of abiotic attenuation of trichloroethylene (PCE) and perchloroethylene (PCE) under field conditions. In this study, an innovative passive sampling tool was developed to quantify acetylene, a characteristic product of abiotic reduction of TCE or PCE, in groundwater. The sampling mechanism is based on the highly specific and facile click reaction between acetylene and an azide compound to form a biologically and chemically stable triazole product.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!