A chemical can enter the body by different ways. Four main routes chemicals can enter the body are:

  • Inhalation
  • Dermal exposure (skin)
  • Ingestion (oral)
  • Injection

--Air can be contaminated and can be inhaled. When air is inhaled it goes through the mouth and nose then into the lungs.

--When chemicals are touched the chemical can go through the skin and into the bloodstream.

--Chemicals can be accidentally swallowed
if food, cigarettes, or if your hands are contaminated.

--Injection is one way that chemicals enter the body. In some workplaces they have sharp objects which can punctures the skin and can inject a chemical or virus directly to your bloodstream.


"How Workplace Chemicals Enter the Body."Canadian Center for Occupational Health & Safety, 1 Apr. 2009. Web. 3 Feb. 2010. <http://www.ccohs.ca/oshanswers/chemicals/how_chem.html>.

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Apple.jpgThinking Map

Food can contain chemicals without someone knowing. Ingestion

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When your cut with an sharp object, chemicals or any virus can go directly to your blood stream. Injection
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Air can contain chemicals, and you can breathe them in. Inhalationchemicals1.gifhttp://tinyurl.com/y928dnd

Chemicals can be touched, then the chemicals go through your skin and to your bloodstream. Dermal ExposurePS2.jpghttp://tinyurl.com/yfopnol