The E.P.A. will make its first priority to issue permits to the biggest operations and to those in heavily-polluted watersheds.

THE heavily-polluted Czech town of Chomutov has threatened to call for a general strike unless the government cleans up the air, a town official said yesterday.

Due to the presence of these industrial enterprises, Cherepovets is one of the most heavily-polluted cities in the world and as of 2011 ranked second in Russia.

The garden has a number of London Plane trees (Platanus x hispanica), the predominant tree throughout central London due to their ability to cope with the capital's formerly heavily-polluted air.

During the last decades of the 20th century the Royal Tarragona Yacht Club expanded quickly thanks to the assistance of the Tarragona Port Authority in the construction of its new harbor premises outside of the heavily-polluted commercial harbor.