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Investigation of the occupational health and safety conditions in Hellenic solid waste management facilities and assessment of the in-situ hazard level
Due to tenuous working conditions and working accidents in the past, sufficient safety measures for the personnel in certain solid waste management facilities are deemed a necessity. Besides the fact that such facilities are equipped with heavy machinery associated with safety risks, the working environment poses additional health risks to the personnel, due to their exposure to various waste-derived emissions. Therefore, it is required to establish and preserve the safety and hygienic conditions but also to equip and train their personnel during all waste treatment and management stages. Presented...
Feedback on Measured Dust Concentrations Reduces Exposure Levels Among Farmers
Background: The high burden of exposure to organic dust among livestock farmers warrants the establishment of effective preventive and exposure control strategies for these workers. The number of intervention studies exploring the effectiveness of exposure reduction strategies through the use of objective measurements has been limited. Objective: To examine whether dust exposure can be reduced by providing feedback to the farmers concerning measurements of the exposure to dust in their farm. Methods: The personal dust levels of farmers in 54 pig and 26 dairy cattle farms were evaluated in two measurement...
Inflammatory Markers and Genetic Polymorphisms in Workers Exposed to Flour Dust
Objective: The aim of this study is to evaluate inflammatory markers and pro-inflammatory CD14 and Toll-like Receptor 4 (TLR4) polymorphisms in workers exposed to flour dust. Methods: Polymorphisms in TLR4 and CD14 were identified in our study population of 167 workers that included 63 healthy subjects (HS), 45 atopic subjects (A), and 59 subjects diagnosed clinically with occupational asthma/rhinitis (OAR). Endpoint measures in this study included fractional exhaled nitric oxide and serum concentrations of interleukin IL-6, IL-8, and tumor necrosis factor-alpha (TNF-α). Results: We identified...
Pulmonary illness as a consequence of occupational exposure to shrimp shell powder
OBJECTIVES: An employee with no prior history of allergy or asthma, experienced respiratory and flu-like symptoms during production of shrimp shell powder in a seafood savory factory in Norway. We aimed to clarify the diagnosis and to identify the cause of the symptoms by specific inhalation challenge (SIC) and by characterizing the powder's biocontaminants, particle size fractions and inflammatory potential. METHODS: Respiratory and immunological responses were measured the day before and after each of four challenges with 20-150g shrimp shell powder during three consecutive days. The powder...
Le syndrome toxique des poussières organiques
Presque 40 ans après le premier cas authentifié, le syndrome toxique des poussières organiques (ODTS) reste encore aujourd'hui une pathologie dont l'épidémiologie est mal connue et les mécanismes physiopathologiques hypothétiques. La définition clinique reposant sur l'association d'un syndrome pseudogrippal, centré par l'existence d'une fièvre, et de symptômes respiratoires lors de l'exposition à des environnements fortement contaminés en poussières organiques (milieu agricole...
Dust, Endotoxin, Fungi, and Bacteria Exposure as Determined by Work Task, Season, and Type of Plant in a Flower Greenhouse
Background: Greenhouse workers are exposed to dust, endotoxin, fungi, and bacteria potentially causing airway inflammation as well as systemic symptoms. Knowledge about determinants of exposure is a prerequisite for efficient prevention through knowledge-based reduction in exposure. The objective of this study was to assess the occupational exposure in a flower greenhouse and to investigate the impact of work tasks on the intensity and variability in exposure. Methods: Seventy-six personal full-shift exposure measurements were performed on 38 employees in a Danish flower greenhouse producing Campanula...
Change in airway inflammatory markers in Danish energy plant workers during a working week
Introduction: It is well known that exposure to organic dust can cause adverse respiratory effect. The pathogen-associated molecular patterns (PAMPS) in the organic dust, such as endotoxin from Gram-negative bacteria cell wall and fungal components, can trigger the release of cytokine (e.g. Interleukin 1 beta (IL-1 beta)) and chemokine (e.g. Interleukin 8 (IL-8)) from the immune cells in the airways. Objective: To evaluate the potential inflammatory effects of organic dust exposure in energy plants in Denmark. Materials and methods: Nasal lavage (NAL) and exhaled breath condensate (EBC) were sampled...
Occupational Hygiene implications of processing waste at Materials Recycling Facilities (MRFs): Exposure to bioaerosol and dust - RR977
This report presents the findings of a study to investigate exposures to dust and its microbiological components amongst workers employed at Materials Recycling Facilities (MRFs). The report shows the potential for workers to be exposed to general airborne dust above the level where it is considered a substance hazardous to health (10 mg/m3 as an 8-hr TWA). Also, there is the potential for exposure to fungi and bacteria, as well as endotoxins, which are agents known to have harmful effects on human health. Endotoxin exposures may be at levels greater than the health-based limit identified by the...
Pulmonary Function Reductions Among Potentially Susceptible Subgroups of Agricultural Workers in Colorado and Nebraska
Objective: Organic dust inhalation has been associated with adverse respiratory responses among agricultural workers. We evaluated factors that may confer increased susceptibility to these health effects. Methods: We quantified personal work shift exposures to inhalable dust, endotoxin, and its 3-hydroxy fatty acid constituents, and evaluated changes in pulmonary function among 137 grain elevator, cattle feedlot, dairy, and corn farm workers. Results: Increased dust exposure was associated with work shift reductions in lung function. Although interpretation is limited because of small samples,...
Caractérisation des poussières dans le secteur des assaisonnements alimentaires
Ce projet a permis de caractériser les poussières dans l’air d’établissements de ce secteur. Les épices et les herbes aromatiques contiennent des substances organiques (nommées également substances actives) pouvant causer des irritations ou ayant un potentiel allergène pour le système respiratoire ou pour la peau. La littérature relative au secteur des épices et herbes aromatiques rapporte des cas d’allergies cutanées, d’asthme professionnel et d’autres problèmes respiratoires. Les...
A study to investigate ways to reduce the dustiness of bakery ingredients and exposure to allergens
This study investigated whether changing the ingredients of bakery improvers would decrease their dustiness and, consequently, help to reduce the exposure of bakers to allergens in the bakery dust. The study was carried out in partnership with the Association of Bakery Ingredient Manufacturers (ABIM). Typical ingredients in bakery improvers are wheat flour, fungal alpha amylase, soya flour, calcium sulphate, vegetable oil and emulsifier. Emulsifier is made from data ester (E472e) with a ‘free flow agent', usually calcium silicate in the UK, to prevent sticking in bakery equipment. The...

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