Home >  Term: contaminant
contaminant

1. Minor impurity present in a substance.

2. Extraneous material inadvertently added to a sample prior to or during chemical or biological analysis

3. In some contexts, as in relation to gas cleaning equipment, used as a synonym for “pollutant”, especially on a small scale.

4. Unintended component in food that may pose a hazard to the consumer.

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