Authorities in Moravia on the brink of calling smog alert

Authorities in north-eastern Moravia have warned companies they will be asked to scale down production on Monday if the smog-situation does not improve in the coming hours. Excessive pollution levels are registered in nine cities with toxic substances in the air twice exceeding set norms. People have been warned to stay indoors as much as possible and keep their windows closed. The situation is worst in the town of Bohumín where the concentration of dangerous substances per cubic meter has reached 131 micrograms; 150 would allow the authorities to call a smog alert and order restrictive measures.