Protective human body-environment system

In the protective clothing-human body-environment system, the interface between clothing and human body forms a micro-environment that affects human comfort the interface between clothing and environment acts as a barrier to prevent the human body from exposure to harmful hazards. In a summary, the protective clothing performs three functions ... 

The types of textile materials used in protective clothing are determined by the performance requirements of the clothing, which come from the analysis of the specific human-clothing-environment system. In this chapter, the application of high performance textile materials in the firefighters clothing, body armour and chemical protective clothing are reviewed, and the effects of the properties of those new materials on the overall performance of those PPE products will be briefly reviewed. 

The series of standards presented in this paper provides a useful package for assessment and design of HVAC systems and protective equipment to be used in moderate, cold, and hot environments. The standards may be used to estimate the optimal combination of environmental thermal factors that will provide comfortable or tolerable healthy working conditions. The standards may also be used to establish optimal work/rest schedules for environments where the working time must be limited owdng to strain on the human body. Several of these standards are being adopted as national standards in several countries. 

Skin constitutes the interface between the human body and the environment. It represents a major target of oxidative stress since it is exposed to external oxidant aggressions like UV radiation, ozone, chemicals or pollution. Continuous exposure to such damaging effects and/or deficiency of the antioxidant protection systems result in skin premature aging and contribute to the development of cutaneous diseases and cancers [23]. Electrochemical studies dealing with the effect... 

Ckin, the most expansive human organ, envelops the entire surface of the body such that its epithelium is continuous with the epithelia of the external orifices of the digestive, sweat, sebaceous, respiratory, and urinogenic systems. As a result of its anatomical location, the skin functions as the physical interface between the body tissues and the environment. The physiological functions of the skin are protection, containment, and thermoregulation. 

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