Ionita, LiviuLiviuIonitaBucur, ElenaElenaBucur2017-04-282017-04-282007http://hdl.handle.net/123456789/953The First International Proficiency Testing Conference , Sinaia, RomaniaOur Institute, INCD ECOIND Bucharest, with the activity domain environmental research (pollution control, pollution assessment, environmental technologies, environment and quality management, trainings, expertise, consulatncy, technical assistance) by its Pollution Control Department organized during years some National and International Proficiency testing schemes on different pollutants and environment factors. Further will present the statistical treatment and the results of an international PT organized in 2005-2006. Participating laboratories analyzed the samples as part of their normal routine, and reported the results to the scheme organizers. After the statistical treatment done by the organizers the participating laboratories were provided with a report showing how closely their results agree with the accepted value.Profiency testing schemeAir pollutantsEmmisionAmbient airConference Paper