Is contaminated and polluted the same thing?

Contaminated and polluted are related terms but not synonymous. Contamination refers to the presence of unwanted substances in a particular environment, such as chemicals or pathogens in water or soil. Pollution, on the other hand, typically refers to the introduction of harmful substances or energy into the environment that causes adverse effects, often on a larger scale. Thus, all pollution involves contamination, but not all contamination necessarily leads to pollution.