carcinogenic contaminant

例句：

1. 1.The chemical was found to be carcinogenic, which led to the ban of the product.
   这种化学物质被发现具有致癌性，因此禁止了该产品的使用。
2. 2. The study found that exposure to certain carcinogenic substances could increase the risk of cancer.
   研究发现，暴露于某些致癌物质可能会增加患癌症的风险。
3. 3. The government has been working on a plan to reduce the levels of carcinogenic contaminants in our environment.
   政府一直在努力制定计划，以减少我们环境中致癌污染物的水平。