Search results - 17 results

A validation methodology for size and shape measurement of nanoplastics by transmission electron microscopy

is lacking, however, we assume it corresponds to the mean ECD of the material. The values and expanded uncertainties we obtained for the mean ECD are 51±4 nm, 198±7 nm and 518±13 nm, for the three ...

Characterization of functional nanoparticles applied in face masks by STEM-EDX

health effects are reported for nano-silver [3], their use in masks raises health concerns because of the potential inhalation exposure to nanoparticles. This emerging area of concern lacks methodological ...

Occurrence of microcystin congeners in surface waters and food in Belgium as a source of exposure to humans

cyanotoxins in food, drinking and recreational water are available in Belgium. Among the main reasons for this data shortage is a lack of publicly sourced, reliable methods to analyze cyanotoxins in food and ...

Simultaneous Detection and Quantification of Aflatoxin M1, Eight Microcystin Congeners and Nodularin in Dairy Milk by LC-MS/MS

188½006. Unfortunately, there is a notable lack of data concerning the transfer of various emerging microbial contaminants into dairy milk and, therefore, their natural occurrences. In this study, a simple ...

Residential Exposure to Urban Trees and Medication Sales for Mood Disorders and Cardiovascular Disease in Brussels, Belgium: An Ecological Study

because the assessment of exposure to trees is often imprecise because of, for instance, exclusion of trees in private areas and the lack of three-dimensional (3D) exposure indicators (e.g., crown volume). ...

Nanomaterials for food applications: Analytical challenges and practical solutions for enforcing labeling of nanoingredients in food products in the European Union

limitations of existing analytical techniques, and the lack of validated studies and reference materials. This book chapter summarizes these challenges and, in addition, suggests a screening strategy for ...

Taxonomic annotation of public fungal ITS sequences from the built environment- A report from an April 10-11, 2017 workshop (Aberdeen, UK)

sequence databases. In addition, the sequence metadata required to make informed taxonomic decisions – such as country and host/substrate of collection – are often lacking even from reference and ex-type ...

A statistical model for predicting the inter-annual variability of birch pollen abundance in Northern and North-Eastern Europe.

Norway, where the lack of data did not allow for conclusive analysis. The constructed model was capable of predicting the SPI with correlation coefficient reaching up to 0.9 for some stations, odds ratio is ...

Biomarkers in patients admitted to the emergency department after exposure to acrylonitrile in a major railway incident involving bulk chemical material.

patients with normal or slightly elevated lactate concentrations. A correlation of CEV with SCN was only observed in smokers. LIMITATIONS: First there is a lack of data in some clinical files concerning the ...

Simulation enhanced distributed lag models for mortality displacement.

DLM s are not valid for mortality displacement. Alternative methods are scarce and lack feasibility and validation. We investigate the breakdown of DLM in three state models by means of simulation and ...

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