1The factory's waste products contaminated the nearby river, causing widespread environmental damage.
2Did the researchers take adequate precautions to prevent their equipment from contaminating the samples?
3The scandal contaminated the entire political party, leading to a loss of public trust and several high-profile resignations.
4Avoid contaminating the soil with chemicals, as this can have long-term effects on the ecosystem.
5The presence of a single dishonest individual can contaminate an entire team or organization, undermining its integrity and effectiveness.