The country is mixed about the standard of the ammonia in indoor air concerned regulation
On November 26, 2001, quality of nation of People's Republic of China is supervised examine ministry of construction of quarantine total bureau, People's Republic of China was released jointly " pollution of condition of core of room of civil construction project controls a standard " (GB 50325-2001) , in the watch 6. 4 in set set limit to of chroma of contaminant of condition of core of room of civil construction project clearly, among them ammonia is in I kind the set limit to in civil construction project is under 0.2 Mg/m3, this standard was carried out formally on January 1, 2002.
Additional, to control indoor air medium ammonia is polluted, beijing is urban and rural construction committee and Beijing are urban and rural program committee already in December 1998 later development, pollute an environment with “ , ” of health of influence human body and “ pollute an environment, send out for a long time peculiar smell ” is a reason, the regulation washs out expander of tall alkaline concrete compulsively since March 1, 2000, the concrete antifreeze delimit to containing urea scope of application, forbid to be in since March 1, 2000 residential project, fair in building a project, use. Put forward to be opposite at the same time violate compasses person supervise and punish.