| Subject | English | Norwegian Bokmål |
| environ. | biological contamination The presence in the environment of living organisms or agents derived by viruses, bacteria, fungi, and mammal and bird antigens that can cause many health effects | biologisk kontaminering |
| environ. | cadmium contamination The release and presence in the air, water and soil of cadmium, a toxic, metallic element, from sources such as the burning of coal and tobacco and improper disposal of cadmium-containing waste | kadmiumkontaminering |
| environ. | chemical contamination The addition or presence of chemicals to, or in, another substance to such a degree as to render it unfit for its intended purpose. Also refers to the result(s) of such an addition or presence | kjemisk kontaminering |
| environ. | food contamination | matvarekontaminering |
| environ. | forage contamination Introduction of hazardous or poisonous substances such as arsenic or lead into, or onto, fodder for animals. The animals consume the contaminated feed and can become sick and may die | forkontaminering |
| environ. | lead contamination The presence and release into the air, water and soil, of lead, a toxic metal used in plumbing, gasoline and lead-acid batteries | blykontaminering |
| environ. | mercury contamination The presence and release into the air, water and soil of mercury, a naturally occurring heavy metal element, by both natural occurrences such as vaporization and human activities such as burning coal, mining and smelting | kvikksølvkontaminering |
| environ. | radioactive contamination Contamination of a substance, living organism or site caused by radioactive material | radioaktiv kontaminering |