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The article offers information on a study related to the evaluation of exposure risk in the weaving process of yarn coated with multiwalled carbon nanotubes and characterization of dust particles. It informs that the evaluation was done by different methods including particle concentrations, microscopic observation and carbon analysis. It concludes that workers should use conventional protection equipments including respirators and gloves to minimize exposure risk.

The article presents a study which compares the responses of different type of mental stress. It is mentioned that circulatory and central nervous system responses were used to conduct the experiment in eight healthy male to determine vascular and cardiac stresses. The study result shows an increase in blood pressure due to the cardiac and vascular stresses while heart rate and hemoglobin levels was increased by the cardiac stress as it requires more oxygen supply to brain.

The article discusses the effects of multiwall carbon nano tubes (MWCNT) implanted in lymph nodes of lung tissues in rats. According to the authors, histological analysis and microscopic studies were done on the rats that were administered with MWNCT after sacrificing them on regular intervals of dose administration. According to the results presented, translocation of MWNCT was observed and phagocytic reactions were mediated by nodal macrophages.

The article presents a study conducted on Male Fischer 344 Rats in order to examine pulmonary toxicity of multiwall carbon nanotubes (MWCNT) by intratracheally instilling them with MWCNT suspension. It offers extrapolation of the conclusions of this study to potential inhalation exposure of humans to MWCNT at workplaces. It suggests a need to establish an occupational standard for airborne carbon nanotubes aerosol in workplace air with regards to MWCNT exposure.