222Rn in the Antarctic Peninsula During 1986

• Main Authors: Pereira, E.B., Setzer, A.W., Cavalcanti, I.F.A.
• Format: Text
• Language: English
• Published: Oxford University Press 1988
• Subjects: Article; Antarctic; Antarctic Peninsula; The Antarctic; Antarc*
• Online Access: http://rpd.oxfordjournals.org/cgi/content/short/24/1-4/85

222Rn was continuously measured at the Brazilian Antarctic Station (62 oS, 58 oW) during the year of 1986. Baseline radon concentration averaged 0.02 Bq.m-3 with surges peaking at 0.4 Bq.m-3. The data exhibited a characteristic periodicity of about 25 days and a strong positive association with short term fluctuations of atmospheric temperature. No seasonal variation of radon were observed. Interpretation of the radon surges with reference to synoptic charts and weather satellite pictures showed that the continental influence of radon at the Antarctic Peninsula is very small and comes only from the tip of the South American cone.