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Hygiene and toxicology - Assignment Example

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It also contains organic substances such hydrocarbons and inorganic ones such as sulphate compounds. Some of the occupations that increase the risk of exposure include railroad work and…
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Hygiene and toxicology
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Download file to see previous pages It also shows that many work places in the country use diesel-powered equipments (National Toxicology Program, 2014). With the increase in the number of industries globally, the rate of exposure to the particulate matter is expected to increase in future. The types of sources of the toxins can be divided into movable sources such as vehicles and immobile sources such as repair yards. Operation of the diesel machines leads to production of solid carbon and sulfur oxides due to incomplete combustion.
The occupational exposure limits of the toxin In Singapore is based on the US Environmental Protection Agency (EPA). The limit of exposure is set at 15 ug /m3 which is long term (EPA, 2014). The exposure to the toxin is usually observed using the model DPM- 4000. This is a portable device that measures the level of particulates in a place in order to ensure that an industry operate in environmental friendly ways. By using the machine, the industries and authorities can know if an industry is maintaining the occupational exposure limits set by environmental and health agencies in the country. The toxin is likely to be human carcinogenic (Day, 2013). It can be carcinogenic to humans though long term inhalation. Among the organs that are more likely to be affected are lungs.
The DPM enters the body through inhalation. After breathing air that contains the particulate matter, they enter the respiratory system. The amount entering the body depends on the amount of matter in the environment. The particulate enters the body in the same manner as cigarette smoke. However, unlike cigarette smoking, the inhalation of the DPM is not voluntary (Bull, 2007). The particulates can also enter some parts of the body directly. For instance, they can enter the eyes through wind.
After entering the body, the particulates are usually distributed through the respiratory system that is divisible into two. The particulate are first distributed in by the upper airway passage. This ...Download file to see next pagesRead More
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