Long-term storage and improper disposal of this material may result in dioxin release into the environment and the contamination of human and animal food supplies.

长期储存以及不当处置这种材料可能导致二恶英泄漏到环境中，导致人类和动物食物污染。

youdao

These are the regulations concerning contamination by mildew in woolen or linen clothing, woven or knitted material, or any leather article, for pronouncing them clean or unclean.

无论是在羊毛衣服上，麻布衣服上，经上，纬上和皮子做的什么物件上，可以定为洁净或是不洁净。

youdao

If you can eliminate control failures and worn equipment as causing the contamination, look next at system configuration, material characteristics, and process conditions.

如果你能消除引起污染的控制缺陷和破损设备，接着你要看看系统配置、材料特征和工艺条件。

youdao

When inspectors found suspicious nuclear material at this site, the Iranians said it was just contamination.

BBC

Some of this material will be used to scrub the machinery's innards of any contamination that may have travelled with the rover from Earth.

BBC: Curiosity Mars rover takes historic drill sample

Relatively low contamination levels in western Japan could be explained by mountain ranges sheltering those regions from the dispersal of radioactive material, the authors said.

BBC: Fukushima fallout fears over Japan farms