منابع مشابه
Inhalation exposure methodology.
Modern man is being confronted with an ever-increasing inventory of potentially toxic airborne substances. Exposures to these atmospheric contaminants occur in residential and commercial settings, as well as in the workplace. In order to study the toxicity of such materials, a special technology relating to inhalation exposure systems has evolved. The purpose of this paper is to provide a descr...
متن کاملInhalation exposure of animals.
Relative advantages and disadvantages and important design criteria for various exposure methods are presented. Five types of exposures are discussed: whole-body chambers, head-only exposures, nose or mouth-only methods, lung-only exposures, and partial-lung exposures. Design considerations covered include: air cleaning and conditioning; construction materials; losses of exposure materials; eve...
متن کاملInhalation Exposure to Carbon Nanotubes (cnt) and Carbon Nanofibers (cnf): Methodology and Dosimetry
Carbon nanotubes (CNT) and nanofibers (CNF) are used increasingly in a broad array of commercial products. Given current understandings, the most significant life-cycle exposures to CNT/CNF occur from inhalation when they become airborne at different stages of their life cycle, including workplace, use, and disposal. Increasing awareness of the importance of physicochemical properties as determ...
متن کاملVocal Cord Dysfunction after an Inhalation Exposure
The manuscript embodies case material and the author’s extensive personal experience to address a perceived or actual airborne exposure when incorrectly judged as due to intrathoracic/lung damage when in reality the outcome is the more innocuous extrathoracic/upper airway’s vocal cord dysfunction (VCD). Because of the conviction of possible lung injury, the individual applies the fetal protecti...
متن کاملNew methodology for specific inhalation challenges with occupational agents
BACKGROUND Inhalation challenges are used for diagnosing occupational asthma (OA). The initial methodology consisted of a "realistic" exposure without monitoring nor controlling exposure. Our aim was to design an equipment, called the GenaSIC, that allows the generation of various agents regardless of the formulation and to assess the feasibility of its use in patients investigated for OA. RE...
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ژورنال
عنوان ژورنال: Environmental Health Perspectives
سال: 1984
ISSN: 0091-6765,1552-9924
DOI: 10.1289/ehp.845623