Environmental experts say quick fix solutions cannot be the answer to North India's toxic air levels.

环境专家称，紧急解决方案不能应对印度北部有毒空气问题。

A study of rivers around the world has found potentially toxic levels of pharmaceutical drugs in a quarter of them.

一项对世界各地河流的研究发现，其中四分之一的河流含有潜在毒性药物。

There were toxic levels in his stew, in his tea biscuits.

他的炖汤以及茶点中都有毒。

Police say the samples taking from the school in Bihar contain what they described as very toxic levels of organic phosphorus compound.

警方称在比哈尔这所学校提取的样本中含有高浓度的剧毒有机磷化合物。

The air quality in and out of this factory is at toxic levels and it's endangering their health, not to mention what it's doing to the ozone.

这家工厂内外的空气质量都处于有毒水平，这正在危害他们的健康，更不用说它对臭氧的影响了。