It means that the toxic effect on the river would be unpredictable, as the way combinations of toxic waste affect the environment is not studied enough.
The fish is even more dangerous for people than toxic water.
This website focuses on proverbs in the Swedish, Danish and Norwegian languages, and some parts including the links below have not been translated to English. They are mainly FAQs, various information and webpages for improving the collection.
This website focuses on proverbs in the Swedish, Danish and Norwegian languages, and some parts including the links below have not been translated to English. They are mainly FAQs, various information and webpages for improving the collection.