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Wyświetlanie 1-8 z 8
Tytuł:
Estimate of radon exposure in geothermal SPAs in Poland
Autorzy:
Walczak, Katarzyna
Olszewski, Jerzy
Zmyślony, Marek
Powiązania:
https://bibliotekanauki.pl/articles/2177082.pdf
Data publikacji:
2015-09-21
Wydawca:
Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:
Polska
occupational exposure
worker
radon
ionizing radiation
spa visitor
Opis:
Objectives Geothermal waters may contain soluble, radioactive radon gas. Spa facilities that use geothermal water may be a source of an increased radiation dose to people who stay there. It has been necessary to assess the exposure to radon among people: workers and visitors of spa centers that use geothermal waters. Material and Methods In 2013, workers of the Nofer Institute of Occupational Medicine measured concentrations of radon over the geothermal water surfaces in 9 selected Polish spa centers which use geothermal water for recreational and medicinal purposes. The measurements were performed by active dosimetry using Lucas scintillation cells. Results According to our research, the doses received by the personnel in Polish geothermal spas are < 0.6 mSv/year. In 1 of the investigated spas, the estimated annual dose to the staff may exceed 3 mSv/year. Conclusions In Polish geothermal spas, neither the workers nor the visitors are at risk of receiving doses that exceed the safe limits.
Źródło:
International Journal of Occupational Medicine and Environmental Health; 2016, 29, 1; 161-166
1232-1087
1896-494X
Pojawia się w:
International Journal of Occupational Medicine and Environmental Health
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of circulating microparticles in healthy medical workers occupationally exposed to ionizing radiation: A preliminary study
Autorzy:
Al-Massarani, Ghassan
Najjar, Fadi
Aljapawe, Abdulmunim
Ikhtiar, Adnan
Powiązania:
https://bibliotekanauki.pl/articles/2162036.pdf
Data publikacji:
2018-12-20
Wydawca:
Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:
biomarkers
flow cytometry
occupational exposure
microparticles
ionizing radiation
cellular damage
Opis:
Objectives Ionizing radiation was known to cause disruption of cytoskeleton. However, the disorganization of the cytoskeleton leads to form microparticles (MP) that carry membrane and cytoplasmic constituents from their parent cells they are released from. Therefore, authors investigated the effect of the occupational exposure to low doses of ionizing radiation on MP levels. Material and Methods The current study was conducted on 38 healthy medical workers occupationally exposed to low doses of ionizing radiation and 29 controls matched by gender, age, and smoking habits. The MP levels measured by flow cytometry were classified as positive or negative phosphatidylserine (PS⁺ or PS⁻), and phenotyped according to their cellular origin. Results Total MP (PS–/PS+) levels, regardless of phenotype, were significantly higher in workers occupationally exposed to ionizing radiation than in healthy individuals (p = 0.0004). Negative phosphatidylserine microparticles were predominant in medical exposed workers and, to a lesser extent, in controls (68% and 57%, respectively). With regard to phenotypic characterization of cellular origin, MP derived from platelets (CD41a+), endothelial (CD146+), leucocytes (CD45+) and erythrocytes (CD235a+) MP were significantly enhanced in exposed workers compared with controls (p < 0.0001). However, no significant difference was found in the proportion of the other blood elements in the peripheral circulation between the 2 groups. Serum levels of C-reactive protein were normal for all individuals. In addition, no association was observed between MP levels and the studied confounding factors. Conclusions The results suggest that elevated circulating MP levels represent an indicator of cellular damage caused by medical exposure to low doses of ionizing radiation. By consequence, the quantification of MP seems to be a useful biomarker for assessing the negative effects of occupational exposure to ionizing radiation. Int J Occup Med Environ Health 2018;31(6):783–793
Źródło:
International Journal of Occupational Medicine and Environmental Health; 2018, 31, 6; 783-793
1232-1087
1896-494X
Pojawia się w:
International Journal of Occupational Medicine and Environmental Health
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The awareness of caregivers about their children’s exposure to ionizing radiation accompanying medical procedures: the assessment study
Autorzy:
Jończyk-Potoczna, Katarzyna
Pucher, Beata
Strzelczuk-Judka, Lidia
Buraczyńska-Andrzejewska, Beata
Więckowska, Barbara
Krauss, Hanna
Biliński, Przemysław
Wojtyła-Buciora, Paulina
Powiązania:
https://bibliotekanauki.pl/articles/2161993.pdf
Data publikacji:
2019-02-27
Wydawca:
Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:
children
CT examination
parents
radiation protection
ionizing radiation
radiation dose
Opis:
Objectives The aim of the study was a survey-based assessment concerning parents of children undergoing CT examinations and their knowledge of detailed information about procedures involved in imaging diagnostics. Material and Methods A statistical analysis of 108 surveys of parents of children undergoing CT studies in the Department of Pediatric Radiology in Poznań, Poland was done, with the use of Statistica software. Results In result of the evaluation of all subsections of the substantive question number, the majority of answers were incorrect (68–98%). No correlation between the number of CT examinations conducted for a child and the number of correct answers to substantive questions was observed. No correlation between the number of CT examinations conducted for a child and the fact of noting the examination with the use of ionizing radiation down in a child’s health certificate was stated. The statistical analysis showed that children of parents who declared that the aim of the CT examination had been explained to them better underwent more of them. Conclusions Parents are poorly informed about a radiation dose and risk related to a CT examination procedure. Int J Occup Med Environ Health. 2019;32(1):65–73
Źródło:
International Journal of Occupational Medicine and Environmental Health; 2019, 32, 1; 65-73
1232-1087
1896-494X
Pojawia się w:
International Journal of Occupational Medicine and Environmental Health
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ionizing radiation and volumetric mammographic density
Autorzy:
Pepłońska, Beata
Mirowski, Mateusz
Kałużny, Paweł
Domienik-Andrzejewska, Joanna
Powiązania:
https://bibliotekanauki.pl/articles/2152984.pdf
Data publikacji:
2022
Wydawca:
Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:
breast cancer
ionizing radiation
mammography
effective dose
mammographic density
organ dose
Opis:
Objectives Mammographic density (MD) refers to the percentage of dense tissue of an entire breast and was proposed to be used as a surrogate marker for breast cancer. High-dose ionizing radiation (IR) has been recognized as a breast cancer risk factor. The aim of our study was to investigate association between lifetime low dose ionizing radiation (LDIR) and MD. Material and Methods A cross-sectional study included 467 women aged 40–60 years who underwent screening mammography in Łódź, Poland. The digital mammography examination of the breasts included both craniocaudal and mediolateral oblique views. The volumetric breast density (VBD) (%) and fibrograndular tissue volume (FG) (cm3) were determined based on the analysis of mammographic image (“for processing”) using Volpara Imaging Software. The exposure to IR was estimated for each individual, based on the data from interviews about diagnostic or therapeutic medical procedures performed in the area of the neck, chest, abdomen and spine, which involved X-rays and γ rays and the data about the doses derived from literature. Linear and logistic regression were fitted with VBD and FG as the outcomes and organ breast dose, effective dose and number of mammographies as the determinants, adjusted for major confounders. Results The analyses showed no association between VBD or FG and the breast organ dose or the effective dose. The only significant finding observed concerned the association between the number of mammographies and the FG volume with β coefficient: 0.028 (95% CI: 0.012–0.043), and predicted mean FG volume >13.4 cm3 among the women with >3 mammographies when compared to those with none. Conclusions This study does not, in general, provide support for the positive association between LDIR and MD. The weak association of the FG volume with the number of mammographies warrants further verification in larger independent studies.
Źródło:
International Journal of Occupational Medicine and Environmental Health; 2022, 35, 5; 635-649
1232-1087
1896-494X
Pojawia się w:
International Journal of Occupational Medicine and Environmental Health
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Authors’ response (December 8, 2017) to the letter to the Editor concerning the paper “Occupational exposure to radon for underground tourist routes in Poland: Doses to lung and the risk of developing lung cancer”
Autorzy:
Walczak, Katarzyna
Olszewski, Jerzy
Politański, Piotr
Zmyślony, Marek
Powiązania:
https://bibliotekanauki.pl/articles/2162023.pdf
Data publikacji:
2018-10-24
Wydawca:
Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:
radon
cancer risk
LNT model
hormesis
radiation risk model
low dose ionizing radiation
Źródło:
International Journal of Occupational Medicine and Environmental Health; 2018, 31, 5; 707-709
1232-1087
1896-494X
Pojawia się w:
International Journal of Occupational Medicine and Environmental Health
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Occupational exposure to ionizing radiation and lens opacity in interventional cardiologists
Autorzy:
Domienik-Andrzejewska, Joanna
Kałużny, Paweł
Piernik, Gabriela
Jurewicz, Joanna
Powiązania:
https://bibliotekanauki.pl/articles/2161953.pdf
Data publikacji:
2019-10-16
Wydawca:
Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:
occupational exposure
ionizing radiation
cataract
low doses
cumulative eye lens doses
interventional cardiologists
Opis:
Objectives Interventional cardiologists (ICs) are occupationally exposed to low or moderate doses of ionizing radiation from repeated exposures. It is not clear whether these occupational conditions may affect their eye lens. Therefore, the risk of radiation-induced cataract in the cohort of Polish interventional cardiologists is analyzed in this paper. Material and Methods The study group consisted of 69 interventional cardiologists and 78 control individuals occupationally unexposed to ionizing radiation. The eye lens opacities were examined using a slit camera and evaluated with Lens Opacities Grading System III. Cumulative eye lens doses were estimated retrospectively using a questionnaire including data on occupational history. Results The average cumulative dose to the left and right eye lens of the ICs was 224 mSv and 85 mSv, respectively. Nuclear opalescence and nuclear color opacities in the most exposed left eye were found in 38% of the ICS for both types, and in 47% and 42% of the controls, respectively. Cortical opacities were found in 25% of the ICS and 29% of the controls. Posterior subcapsular opacities were rare: about 7% in the ICs group and 6% in the control group. Overall, there was some, but statistically insignificant, increase in the risk for opacity in the ICs group, relative to the control group, after adjusting for the subjects’ age, gender, smoking status and medical exposure (adjusted OR = 1.47, 95% CI: 0.62–3.59 for the pooled “any-eye any-type” opacity). There was also no evidence for an increased opacity risk with an increase in the dose. Conclusions The study found no statistically significant evidence against the hypothesis that the risk of cataract in the group of the ICs occupationally exposed to low doses of ionizing radiation is the same as in the control group. Nevertheless, the adverse effect of ionizing radiation still cannot be excluded due to a relatively small study sample size. Int J Occup Med Environ Health. 2019;32(5):663–75
Źródło:
International Journal of Occupational Medicine and Environmental Health; 2019, 32, 5; 663-675
1232-1087
1896-494X
Pojawia się w:
International Journal of Occupational Medicine and Environmental Health
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ocena narażenia na promieniowanie jonizujące techników obsługujących gammakamery
Evaluation of exposure to ionizing radiation among gamma camera operators
Autorzy:
Domańska, Agnieszka A.
Bieńkiewicz, Małgorzata
Olszewski, Jerzy
Powiązania:
https://bibliotekanauki.pl/articles/2166788.pdf
Data publikacji:
2014-11-04
Wydawca:
Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:
promieniowanie jonizujące
medycyna nuklearna
dozymetria
dawka graniczna
ochrona radiologiczna
personel medyczny
ionizing radiation
nuclear medicine
Dosimetry
dose limit
radiation protection
medical staff
Opis:
Wstęp: Ochrona personelu placówki medycyny nuklearnej przed zagrożeniami wynikającymi ze stosowania promieniowania jonizującego jest istotnym aspektem ochrony radiologicznej osób fizycznych. Celem pracy była oceny narażenia zawodowego techników elektroradiologii wykonujących badania scyntygraficzne w Zakładzie Medycyny Nuklearnej Centralnego Szpitala Klinicznego UniwersytetuMedycznego w Łodzi, gdzie rocznie przeprowadzanych jest kilka tysięcy różnego rodzaju radioizotopowych badań diagnostycznych. Materiał i metody: W badanej placówce diagnostycznej zatrudnionych jest 10 techników (2013 r.), których narażenie podlega stałej kontroli za pomocą dozymetrii indywidualnej. Zebrano archiwalne dane dotyczące kwartalnych odczytów z dozymetrów na przestrzeni lat 2001-2010 i przeanalizowano dawki kwartalne wyrażone, jako równoważniki dawki Hp(10). Wyznaczono również dawki roczne oraz 5-letnie, odnosząc wyniki do obecnie obowiązujących norm prawnych. Dla wybranego okresu jednego roku zebrano również dane dotyczące liczby i rodzaju realizowanych w tym czasie badań, aby ocenić, czy istnieje zależność między łączną aktywnością radiofarmaceutyków podaną w tym czasie pacjentom a dawkami zarejestrowanymi u techników wykonujących te badania. Wyniki: W badanym 10-letnim okresie działalności placówki, najwyższa zarejestrowana u technika dawka roczna wynosiła 2 mSv, a najwyższa sumaryczna dawka 5-letnia - 7,1 mSv, co nie przekraczało 10% wartości granicznych dawki rocznej (20 mSv) i 5-letniej (100 mSv). Zaobserwowano dodatnią zależność liniową między wartościami kwartalnych dawek otrzymanych przez techników a łączną aktywnością radiofarmaceutyków podanych w tym okresie pacjentom. Wnioski: Przy zachowaniu zasad ochrony radiologicznej oraz warunków bezpiecznego stosowania promieniowania jonizującego dawki otrzymywane przez techników wykonujących badania scyntygraficzne są niskie, co potwierdza zaliczenie tej grupy zawodowej do pracowników kategorii B. Med. Pr. 2013;64(4):503–506
Background: Protection of nuclear medicine unit employees from hazards of the ionizing radiation is a crucial issue of radiation protection services. We aimed to assess the severity of the occupational radiation exposure of technicians performing scintigraphic examinations at the Nuclear Medicine Department, Central Teaching Hospital of Medical University in Łódź, where thousands of different diagnostic procedures are performed yearly. Materials and Methods: In 2013 the studied diagnostic unit has employed 10 technicians, whose exposure is permanently monitored by individual dosimetry. We analyzed retrospective data of quarterly doses in terms of Hp(10) dose equivalents over the years 2001-2010. Also annual and five-year doses were determined to relate the results to current regulations. Moreover, for a selected period of one year, we collected data on the total activity of radiopharmaceuticals used for diagnostics, to analyze potential relationship with doses recorded in technicians performing the examinations. Results: In a 10-year period under study, the highest annual dose recorded in a technician was 2 mSv, which represented 10% of the annual dose limit of 20 mSv. The highest total dose for a 5-year period was 7.1 mSv, less than 10% of a 5-year dose limit for occupational exposure. Positive linear correlation was observed between total activity of radiopharmaceuticals used for diagnostics in the period of three months and respective quarterly doses received by technicians performing examinations. Conclusions: Doses received by nuclear medicine technicians performing diagnostic procedures in compliance with principles of radiation protection are low, which is confirmed by recognizing the technicians of this unit as B category employees. Med Pr 2013;64(4):503–506
Źródło:
Medycyna Pracy; 2013, 64, 4; 503-506
0465-5893
2353-1339
Pojawia się w:
Medycyna Pracy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Narażenie pracowników jednostek wojskowych na czynniki kancerogenne w środowisku pracy w latach 2018–2019
Exposure of military unit employees to carcinogenic factors in the work environment in 2018–2019
Autorzy:
Lemiech-Mirowska, Ewelina
Zawadzka, Magdalena
Powiązania:
https://bibliotekanauki.pl/articles/2087539.pdf
Data publikacji:
2021-11-19
Wydawca:
Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:
narażenie zawodowe
promieniowanie jonizujące
stanowiska pracy
czynniki chemiczne
procesy technologiczne
nadzór BHP
occupational exposure
ionizing radiation
workplace
chemical agents
technological processes
OSH supervision
Opis:
WstępCelem niniejszej pracy było przeprowadzenie analizy danych dotyczących narażenia pracowników jednostek wojskowych na substancje chemiczne, promieniowanie jonizujące i procesy technologiczne o działaniu kancerogennym.Materiał i metodySzczegółowej analizie poddano raporty zebrane z Wojskowych Ośrodków Medycyny Prewencyjnej dotyczące czynników rakotwórczych oraz narażenia pracowników w jednostkach i instytucjach wojskowych.WynikiLiczba pracowników narażonych na działanie czynników o właściwościach kancerogennych w omawianym czasie wzrosła. W 2019 r. liczba osób narażonych w miejscu pracy na chemiczne substancje rakotwórcze lub mutagenne wynosiła 4058, promieniowanie jonizujące – 1015, procesy technologiczne o działaniu rakotwórczym lub mutagennym – 12, natomiast w roku 2018 – odpowiednio: 3224, 1289 i 8. W jednostkach wojskowych najbardziej rozpowszechnionymi czynnikami chemicznymi, na które występowało narażenie z punktu widzenia bezpieczeństwa i higieny pracy, były mieszaniny ciekłych węglowodorów stosowane jako paliwo do napędu pojazdów i urządzeń wyposażonych w silniki spalinowe. W jednostkach wojskowych ukierunkowanych na świadczenie usług medycznych najczęściej występowało narażenie na promieniowanie rentgenowskie (diagnostyka obrazowa) i formaldehyd (patomorfologia).WnioskiZebrane dane prezentują różne podejście jednostek w zakresie raportowania i oceny narażenia zawodowego. Poznanie długotrwałych skutków zdrowotnych wymaga przeprowadzenia dokładniejszych badań. Med. Pr. 2021;72(5):501–508
BackgroundThe aim of the study was to analyze data on the exposure of military personnel to carcinogenic chemical substances, ionizing radiation and technological processes.Material and MethodsReports collected from the Military Centers of Preventive Medicine on carcinogens and exposure of workers in military units and institutions were subjected to a detailed analysis.ResultsThe number of workers exposed to carcinogenic factors increased in the period under analysis. In 2019, the total number of people exposed in the workplace to chemical carcinogens or mutagens was 4058, to ionizing radiation – 1015, and to technological processes with carcinogenic or mutagenic effects – 12, compared to 3224, 1289 and 8 people, respectively, in 2018. The most common chemical agents in military units which caused exposure, from the point of view of occupational health and safety, were mixtures of liquid hydrocarbons used as fuel for driving vehicles and devices with internal combustion engines. In military units dedicated to the provision of medical services, exposure to X-ray radiation (diagnostics imaging) and formaldehyde (pathomorphology) was the most common.ConclusionsThe collected data presents different approaches of individuals in terms of reporting and assessing occupational exposure. Understanding the long-term health effects requires more thorough research. Med Pr. 2021;72(5):501–8
Źródło:
Medycyna Pracy; 2021, 72, 5; 501-508
0465-5893
2353-1339
Pojawia się w:
Medycyna Pracy
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-8 z 8

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