"Contamination levels" refers to the amount or degree of harmful substances present, such as pollutants or impurities, in a particular environment, substance, or object. Full definition
Soy has one of the highest pesticide contamination levels of any crop. (chestsculpting.com)
The poultry later showed ammonia contamination levels as high as 133 times the acceptable amount, according to state health officials. (articles.chicagotribune.com)
After the incident, state health officials said the chicken had ammonia contamination levels as high as 133 times the acceptable amount. (articles.chicagotribune.com)