this paper reports on formaldehyde exposure and its health hazards in a melamine manufacturing industry. the mean of workers' exposure was measured according to 3500 njosh and was found to be 1.44±o.2l, and 2. 17±o.24 ppm in morning and evening shifts, respectively. for stationary ones it was 1.37±o.20, and 2.06±o.25ppm, respectively. the results show that formaldehyde concentration at the...

Objectives—To evaluate the contribution of traYc fumes to exposure to benzene in urban workers, an investigation on personal exposure to benzene in traYc police from the city of Rome was carried out. Methods—The study was performed from December 1998 to June 1999. DiVusive Radiello personal samplers were used to measure external exposures to benzene and alkyl benzenes during the workshift in 13...

Electromagnetic fields exposure assessment methodology is briefly presented. The basic problems defined for the practical use of electromagnetic fields measurements and numerical calculations carried out for workers exposure assessment in real occupational situations are discussed. The examples of data from real workplace are presented, focusing: spatial distribution of electromagnetic fields a...

This paper presents results from a large scale study investigating the human response to vibration in residential environments. The main aim of this study was to derive exposure-response relationships for annoyance caused by vibration experienced within residential properties from sources outside of residents‘ control. The study took the form of a questionnaire administered to UK residents in t...

Uptake and elimination kinetics of zinc and cadmium were studied in the oligochaetes Enchytraeus albidus and Eisenia fetida. Even at the highest exposure concentrations where E. fetida survived, the internal zinc concentration was still regulated to a constant level. Enchytraeus albidus could not regulate the internal zinc concentration as well, and the body burden increased after exposure to h...

We study the dynamic decision making of a financial institution in the presence of a novel implementation friction that gives rise to operational risk. We distinguish between internal and external operational risks depending on whether the institution has control over them. Internal operational risk naturally arises in the context of model risk, as the institution exposes itself to operational ...

Nanoparticles (NPs) are a heterogeneous group of materials that have various applications, and their risk assessment is an essential condition. This study aimed to review the applicable risk assessment methods in occupational and environmental exposures to NPs. A literature search for articles published since 2005 in Web of Knowledge, Scopus, PubMed, Science Direct, and Google Scholar, using ap...

PURPOSE The purpose of the study was to observe the effects of fenvalerate exposure on the semen quality of occupational workers. MATERIALS AND METHODS Thirty-two male workers who were exposed to fenvalerate and 46 male administrators in the office in the same pesticide factory were selected as the exposure group and internal control group, respectively, and 22 male administrators in a center...