Radosław Lewiński

Mr. Radosław Lewiński

orcid

Research Focus & Metrics

Academic Career Length

4Years (2023-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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14 January 2023 in Molecules
Verified
Journal Article
Open access
PDF file
RLRadosław Lewiński
Radosław Lewiński
AHAgnieszka Hernik
Agnieszka Hernik
MLMonika Liszewska
Monika Liszewska
BBBrian Buckley
Brian Buckley
KCKatarzyna Czaja
Katarzyna Czaja
PSPaweł Struciński
Paweł Struciński
Honey is considered to be a health-promoting food product. Therefore, it is assumed that it should be free of contaminants. Although the use of organochlorine pesticides (OCPs) was banned a few decades ago in developed countries, persistent organic pollutants (POPs) are still detected in various environmental and biological matrices, including food. These contaminants exhibit toxic properties and bioaccumulate in some food chains. The validation of a modified QuEChERS extraction method was successfully performed for o,p’-DDT, o,p’-DDE, o,p’-DDD, p,p’-DDT, p,p’-DDE, p,p’-DDD, heptachlor and dieldrin. 2,2′,4,4′,5,5′-hexachlorobiphenyl (PCB 153) was used as an internal standard. The modification involved changing the solvent from acetonitrile to n-hexane after extraction. Quantitation was carried out using gas chromatography with an electron capture detector (µECD). The mean recovery values for o,p’-DDT, o,p’-DDE, o,p’-DDD, p,p’-DDT, p,p’-DDE, p,p’-DDD and dieldrin, spiked at 2.9 ng/g and 20 ng/g, ranged from 64.7% to 129.3%, and, for heptachlor spiked at 5.6 ng/g and 20 ng/g, ranged from 68.0% to 88.3%. The relative standard deviation (RSD) for these concentrations did not exceed 20%, and the within-laboratory reproducibility was below 20%, except o,p’-DDE and p,p’-DDT, which were 25.2% and 20.7%, respectively. This modified QuEChERS extraction method for selected organochlorine compounds was demonstrated as effective for routine testing in honey.

28 September 2023 in Foods
Verified
Journal Article
Open access
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MMMaria Minorczyk
Maria Minorczyk
KCKatarzyna Czaja
Katarzyna Czaja
ASAndrzej Starski
Andrzej Starski
WKWojciech Korcz
Wojciech Korcz
MLMonika Liszewska
Monika Liszewska
PSPaweł Struciński
Paweł Struciński
Furan and its derivatives are found in various heat-treated foods. Furan is classified as a possible human carcinogen. The European Union authorities recommend collecting data on the occurrence of these compounds, estimating consumer exposure, and taking measures to protect human health based on a scientific risk assessment. The aim of this study was to estimate the exposure of infants and toddlers to furan and its methyl derivatives—2-methylfuran, 3-methylfuran, and ∑2,5-dimethylfuran/2-ethylfuran—present in home-prepared foods and to characterize the associated health risks. The compounds of interest were determined using the HS-GC/MS. The risk was characterized by the calculation of the margin of exposure (MoE). Levels of furan and its derivatives in analyzed samples were in the range of <LOD ÷ 10 µg/kg and <LOD ÷ 80.3 µg/kg, respectively. The MoEs for neoplastic effects in most of the presumed scenarios indicate a risk associated with the intake of analyzed compounds in both age groups (MoE < 10,000; 331 to 6354 for 95th percentile, 3181–39,033 for median). The MoEs for non-neoplastic effects indicate a potential risk associated with the intake of 3-methylfuran and Σ2,5-dimethylfuran/2-ethylfuran for high exposure (95th percentile) only (MoE < 100; 16–47). The obtained results indicate the need for further research in this area.

15 December 2023 in Annals of Agricultural and Environmental Medicine
Verified
Journal Article
Open access
WKWojciech Korcz
Wojciech Korcz
KCKatarzyna Czaja
Katarzyna Czaja
MLMonika Liszewska
Monika Liszewska
BBBrian Buckley
Brian Buckley
AHAgnieszka Hernik
Agnieszka Hernik
PSPaweł Struciński
Paweł Struciński
Introduction and objective: Polybrominated diphenyl ethers (PBDEs) are a class of flame-retarding synthetic compounds. They may cause a potential threat to human health due to their bio-accumulative and toxicological properties, and ubiquitous presence in the environment. Food, and ingested...

16 May 2024 in Molecules
Verified
Journal Article
Open access
PDF file
WKWojciech Korcz
Wojciech Korcz
KCKatarzyna Czaja
Katarzyna Czaja
MLMonika Liszewska
Monika Liszewska
RLRadosław Lewiński
Radosław Lewiński
ASAnna Słomczyńska
Anna Słomczyńska
PSPaweł Struciński
Paweł Struciński
Polybrominated diphenyl ethers (PBDEs) have been used for many years as flame retardants. Due to their physicochemical and toxicological properties, they are considered to be persistent organic pollutants (POPs). BDE-209 is the main component of deca-BDE, the one PBDE commercial mixture currently approved for use in the European Union. The aim of this study was to analyse BDE-209 in surface soil samples from Warsaw and surrounding areas (Poland) as an indicator of environmental pollution with PBDEs, and to characterise the associated health risk. A total of 40 samples were analysed using gas chromatography with electron capture detection (GC-µECD). Concentrations of BDE-209 in soil ranged from 0.4 ng g−1 d.w. (limit of quantification) to 158 ng g−1 d.w. Overall, 52.5% of results were above the method’s limit of quantification. The highest levels were found at several locations with heavy traffic and in the vicinity of a CHP plant in the city. The lowest concentrations were observed in most of the samples collected from low industrialized or green areas (<0.4 to 1.68 ng g−1 d.w.). Exposure to BDE-209 was estimated for one of the most sensitive populations, i.e., young children. The following exposure routes were selected: oral and dermal. No risk was found to young children’s health.

19 August 2025 in Roczniki Panstwowego Zakladu Higieny
Verified
Journal Article
Closed access
RLRadosław Lewiński
Radosław Lewiński
AHAgnieszka Hernik
Agnieszka Hernik
MLMonika Liszewska
Monika Liszewska
KCKatarzyna Czaja
Katarzyna Czaja
WKWojciech Korcz
Wojciech Korcz
PSPaweł Struciński
Paweł Struciński
Background: Organochlorine pesticides (OCPs) were widely used in crop protection in the past. Due to their high chemical persistence and widespread presence in the environment, they have been classified as persistent organic pollutants (POPs). Given their toxicological properties, dietary exposure to OCPs may lead to adverse health effects in humans.Objective: The aim of this pilot study was to analyse selected obsolete OCPs (DDT, its metabolites and isomers, as well as dieldrin and heptachlor) in honey samples and to assess the associated health risks resulting from the intake of these compounds for children and adults.Material and Methods: The study included 79 honey samples collected from various regions of Poland. The samples were prepared using the modified QuEChERS method. The tested substances were determined in honey using gas chromatography with an electron capture detector (GC-ECD). Health risk was characterized using a deterministic method by comparing the intake of the residues from a large portion of honey with toxicological reference values. A conservative approach was used to estimate short-term exposure using 0.5 × LOQ (limit of quantification) values for substances detected at levels below the LOQ.Results: None of the OCPs analysed were detected above their LOQs. Only in two samples, p,p’-DDE and dieldrin, were detected at levels above the method’s limit of detection (LOD). The results indicate a negligible health risk for consumers associated with the intake of these substances from honey.Conclusions: The results indicate that levels of tested organochlorine pesticides in honey are low. The risk associated with exposure to the analysed OCPs, at the assumed levels, through the consumption of honey available in Poland can be considered negligible.