REPUBLIC OF BULGARIAREPUBLIC OF BULGARIAMINISTRY OF HEALTHREGULATION No. 2on the MaximumAdmissible Hazardous Contaminant Levels in Communities Ambient Air Promulgated StateGazette No. 16/24.02.1984Amended SG No.17/1992 & 43/1994Article 1Maximum admissible hazardous contaminant levels incommunities ambient air, registered during a certain period of time, shouldhave neither direct nor indirect harmful effect on human organism, remoteconsequences for the present and future generations included, should notdecrease mans capacity for work, longevity and should not deteriorate mansgood general condition. Article 2(1) Maximum admissible hazardouscontaminant levels in communities ambient air are determined as maximum singletime levels, average round-the-clock and average annual levels according toAnnex No .1 in which:1. The maximum single timepermissible level is the permissible concentration during a 30 minutes periodof exposure.2. The average round-the-clockpermissible level is the permis...