Results 261 to 270 of about 87,598,632 (299)

Exposure assessment in Beijing, China: biological agents, ultrafine particles, and lead

Environmental Monitoring and Assessment, 2009
In this study, air samples were taken using a BioSampler and gelatin filters from six sites in Beijing: office, hospital, student dormitory, train station, subway, and a commercial street. Dust samples were also collected using a surface sampler from the same environments.
Shuofei, Dong, Maosheng, Yao
openaire   +4 more sources

Airborne exposure limits for chemical and biological warfare agents: Is everything set and clear?

International Journal of Environmental Health Research, 2006
Emergency response strategies (guidelines) for biological, chemical, nuclear, or radiological terrorist events should be based on scientifically established exposure limits for all the agents or materials involved. In the case of a radiological terrorist event, emergency response guidelines (ERG) have been worked out.
Alex, Sabelnikov, Vladimir, Zhukov, C Ruth, Kempf   +2 more
openaire   +4 more sources

Validity criteria for the use of biological markers of exposure to chemical agents in environmental epidemiology

Toxicology, 1995
Biomarkers may prove very useful in increasing the precision of exposure estimates during field epidemiological studies of environmental and occupational exposures. However, the determination of validity of exposure biomarkers is a laborious process.
P A, Schulte, G, Talaska
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Exposure to Chemical and Biological Agents at Work and Cardiovascular Disease in Brazil

Journal of Occupational & Environmental Medicine, 2021
Objective: Investigating the relationship between exposure to chemical and biological agents at work and the occurrence of cardiovascular diseases in a Brazilian national health survey. Methods: A cross-sectional study using the database of 36.442 participants from the Brazilian ...
Thalyta Gleyane, Silva de Carvalho, Nayranne Hivina Carvalho, Tavares, Maria Luiza Almeida, Bastos, Bárbara Bruna, Rodrigues de Oliveira, Larissa Fortunato, Araújo, Marcelo José Monteiro, Ferreira   +5 more
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Biological considerations in assessing exposures to genotoxic and carcinogenic agents

International Archives of Occupational and Environmental Health, 1993
This analysis of the relationship between long-term exposure to carcinogens and the risk of cancer relies upon a model which depicts exposure, burden and genetic damage as time series. It is shown that the dose of the carcinogen and the resulting damage to susceptible tissues can be related to cumulative exposure provided that linear kinetics are ...
openaire   +2 more sources

Belief in Exposure to Chemical and Biological Agents in Persian Gulf War Soldiers

Journal of Nervous & Mental Disease, 2008
This is the first longitudinal cohort study of Persian Gulf War US soldiers to examine belief in exposure to chemical and biological weapons before and shortly after combat. A longitudinal sample of n = 1250 male Persian Gulf War US Army soldiers were surveyed 3 to 4 months before and 6 to 10 months after the 1991 War.
Stuart, J A, Ursano, R J, Fullerton, C S, Wessely, S   +3 more
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Urinary mercapturic acid excretion as a biological parameter of exposure to alkylating agents

International Archives of Occupational and Environmental Health, 1977
Mercapturic acid derivatives or other thioethers can be considered as the endproducts of the metabolic detoxification of possibly alkylating agents. It is proposed that the appearance of these metabolites in the urine can be used as an indicator of exposure of the organism to such toxic compounds.
F, Seutter-Berlage, H L, van Dorp, H G, Kosse, P T, Henderson   +3 more
openaire   +2 more sources

[Biological markers of exposure to toxic agents].

Revue d'epidemiologie et de sante publique, 1986
Exposure to chemical agents may be assessed either qualitatively or semi-quantitatively with the help of a questionnaire (type of exposure and duration) or quantitatively either by the measurement of the concentration of the xenobiotics in the environment (ambient monitoring) or by the measurement of biological parameters related to the internal doses (
R, Lauwerys, A, Bernard
openaire   +1 more source

Inhalable dust as a marker of exposure to airborne biological agents in composting facilities

Waste Management, 2018
Industrial composting is associated with high levels of worker exposure to bioaerosols. Measurement of airborne microorganisms and endotoxin is complex and the related cost is high. The objective was therefore to examine whether dust measurement could be used as a marker of exposure to bioaerosols in composting facilities.A dataset of 110 measurements ...
Olivier, Schlosser, Samuel, Robert, Catherine, Debeaupuis, Alain, Huyard   +3 more
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BioBadge: a personal dosimetry technology for assessment of exposures to biological agents

SPIE Proceedings, 2003
The BioBadge is a biological dosimeter product based on a personal collection device developed by MesoSystems Technology. Designed to be worn by individuals in potentially biologically hazardous environments, the BioBadge allows for real-time collection, concentration, and analysis of biological agents present in the air.
Eric M. Hanczyc, Andrew E. Kamholz, Charles J. Call   +2 more
openaire   +1 more source