n.致污物，污染物

原形：contaminant复数：contaminants

The presence of heavy metals in the groundwater is a serious contaminant issue.
地下水中含有重金属是一个严重的污染物问题。
The oil spill contaminated the entire coastal ecosystem.
油污泄漏污染了整个沿海生态系统。
The factory was found to be releasing toxic contaminants into the river.
该工厂被发现向河流排放有毒污染物。
Lead paint, a known health hazard, is a common household contaminant.
铅涂料是一种已知的健康危害，是常见的家居污染物。
The food was recalled due to possible bacterial contamination.
由于可能存在细菌污染，这批食品已被召回。
The air quality index soared due to high levels of particulate matter contaminants.
由于颗粒物污染物浓度升高，空气质量指数大幅上升。
The water from the old well tested positive for coliform contaminants.
老井里的水检测出含有大肠杆菌污染物。
The use of pesticides can lead to residues becoming a contaminant in our food supply.
使用农药可能导致残留物成为我们食物供应中的污染物。
Radioactive waste is an extremely hazardous and long-lasting environmental contaminant.
放射性废物是一种极其危险且持久性的环境污染物。
Filters were installed on the ventilation system to remove potential airborne contaminants.
在通风系统上安装了过滤器以去除潜在的空气传播污染物。