China's Jinan City will close most construction sites until further notice, according to a weekend notice from the city's Urban and Rural Construction Committee.
The move aims to cut pollution in coming months, said the Jinan government notice.
The city is capital of coastal Shandong Province and home to more than 7 million people.
Only a small portion of construction sites will be spared, such as the city's ongoing subway project.
North China is under intense pressure to meet clean air targets, particularly in winter, when residential heating systems are switched on.
Heating is typically turned on in mid-November.
