Biological, chemical, physical, or radiological substance (normally absent in the environment) which, in sufficient concentration, can adversely affect living organisms through air, water, soil, and/or food.

Use contaminant in a sentence

  • Unfortunately, the compound created in Lab Test A has been rejected for commercial use and labeled a contaminant; its use in soil fertilizer has been linked to cases of respiratory infection in test users, so further revision and testing will be necessary.

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  • Because water from mountain streams may contain disease-causing contaminants, it is crucial that hikers bring a filtration device if they plan on drinking it.

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  • We could not allow the contaminant to ruin the experiment because the outcome would determine our futures in the business.

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