Beijing closed or relocated 185 firms in the first half of 2015 in a battle against pollution, local authorities said Friday.

The capital city is expected to shut down or move 300 polluting companies by the end of this year, according to a meeting held Friday to discuss the city's economic situation in the first half of 2015.

In order to curb "urban ills," including congestion and air pollution, Beijing has also shut down 60 low-end wholesale markets and upgraded another ten markets to alleviate congestion, according to information released at the meeting.

More than 8,500 booths in wholesale markets are expected to be relocated by the end of the year.

Relocating non-core functions from Beijing has become a priority in the coordinated development of Beijing and Tianjin municipalities and Hebei Province.