关键词：大气；气溶胶；空气治理
摘 要：In nuclear facilities, radioactive aerosols can be a source of internal dose to workers. These particles are produced through inadvertent release of radioactive material from containment barriers such as piping, hoods, bags and glove boxes or produced through operations and maintenance of items and systems containing radioactive material. Resuspension of contamination is a recurring source of airborne radioactivity once contamination is established in a facility.