People in the Moravia-Silesia Region have been warned to avoid going outside unnecessarily because of poor air quality. The dust in the air in the eastern region was three or more times the legal limit on Monday morning. The worst affected spot is the Frýdek-Místek area, where a measuring station recorded 187 microgrammes of particles per cubic metre. The situation is also bad in Český Těšín, with 180 microgrammes per cubic metre registered. An industrial area of the country, Moravia-Silesia frequently suffers from poor air quality, particularly in the winter months.