A disaster never seen before hit my home country, Hungary. It’s unbelievable, startling and sad.
Rivers and lakes in 12 European countries are in danger of being contaminated as toxic sludge from an alumina factory heads towards the Danube. Red sludge is a byproduct of the refining of bauxite into alumina, the basic material for manufacturing aluminium. It is common to store treated sludge in ponds where the water eventually evaporates, leaving behind a dried red clay-like soil. A state of emergency in three counties was announced yesterday after the dam burst released a torrent of toxic red sludge that swept through local villages. Four people were killed, three reported missing and 120 were injured.
Cars drifted into the middle of surrounding field, dead bodies of domestic animals laying about on the streets covered in red sludge. I think, that area in northwest Hungary will never be populated again.

This image basically tells it all. The sludge is highly alkalic (that causes most of the problem now, getting closer and closer to the Danube).
