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Environmental Health Sciences Essay Example

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Environmental Health Sciences

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Each worker wears this device and the quantity found on the filter is estimated. There are chances of some errors to occur during the estimation procedure because: a) size of the aerosol is important for its passage through airways up to lungs, b) variation in respiratory rate and, c) variation in depth of respiration at different occasions in different individuals (Spear 2006).Cholinesterase, found in red blood corpuscles or serum, is used as an important marker of organ phosphorus compound poisoning. This enzyme is used in routine monitoring as well as in acute exposure to these poisonous compounds. There are some limitation to this method and should be kept in mind while interpreting the results, like: a) there may be variation in the same the individual at different times, b) variation between different individuals, c) the assay used for the measurement purpose may also give different results as compared to other assay used (Spear 2006). People who load/mix parathion, people who spray parathion onto crops and people who harvest crops treated with parathion are all potentially exposed to the compound. For each of these three groups of potentially exposed people, describe the form(s) of the compound they are likely to be exposed to. (For example, dilute or concentrated? Parathion or paraoxon? Liquid, aerosol or residues?) For each group, name one potential step they could take to prevent exposure and/or minimize continued exposure once it has occurred.Dermal route is important because skin may come in contact with any pesticide in all its forms including solid, liquid or vapors but for the inhalational route to be utilized the chemical has to be in the shape of vapors. Gastrointestinal route may also be utilized when there is unintentional ingestion of the chemical through sold or liquid. Parathion is more toxic and concentrated before it vaporizes so when a worker handles parathion his/her skin is exposed to all its forms. As far as parathion is concerned, it gets diluted in the air and its effects are decreased if it inhaled.Moreover, Spear et al showed that dermal route was important as far as the residues of parathion were concerned as these were present on the skin of the participants while there was no difference in the dose to which a worker was exposed whether he/she applied mask or not (Spear 2006). Explain how researchers could conclude, based

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preview essay on Environmental Health Sciences
  • Pages: 4 (1000 words)
  • Document Type: Essay
  • Subject: Unsorted
  • Level: Undergraduate
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