A draft law in China seeks to bring down noise pollution. The law authorises municipal authorities to crack down on everything from deafening construction sites to boisterous folk dancing. Some big cities are planning to build noise screens alongside major highways where decibel levels exceed safety levels, said Guo Xiulan, a senior engineer with the National Environmental Protection Agency.

Noise pollution is getting worse with urbanisation and industrial development. On some highways, noise levels exceed 70 decibels. Any noise beyond 60 decibels can cause physical discomfort. Existing noise pollution laws have not proved to be effective. The new law provides stringent rules for the assessment of noise impact from various sources, including daily chores, traffic and construction sites. Noise control measures would also apply to cinema halls, karaoke clubs and discos. Inspectors assessing noise levels are likely to be sued if their findings are found to be inaccurate.