List of Radon Level by Country (Please send comments and corrections to: Jan_Zielinski@hc-sc.gc.ca)
Country Name	WHO Code	ISO	Population 106 a	AM	GM	GSD	Max	Classification of AMb	Source	OriginalReference for AM, possibly GM, GSD, Max
Algeria	1010	DZA	32.85	30			140		UNSCEAR 2000 report	Cherouati, D.E. and S. Djeffal. Measurements of radon and radon daughters in dwellings in Algiers. Radia. Prot. Dosim. 25: 137-139 (1988).
Egypt	1125	EGY	74.03	9			24		UNSCEAR 2000 report	Kenawy, M.A. and A.A. Morsy. Measurements of environmental radon-222 concentration in indoor and outdoors in Egypt. Nucl. Tracks Radiat. Meas. 19:343-345 (1991).
Ghana	1180	GHA	22.11				340		UNSCEAR 2000 report	Oppon, O. C.; Aniagyei, H. M., and  Kyere, A. W. K. Monitoring of natural background radiation in some Ghanaian homes.   In: M. Sohrabi, J. U. Ahmed S. A. Durrani, eds.  Proceedings of an international conference on high levels of natural radiation. 3-7 November, 1990.  Ramsar, Iran. Vienna., Austria: IAEA; 1993: 385-389.
a Data are estimates for July 2005, taken from the United Nations World Populations Prospects Report (2004 revision).
b CWA - Country Wide Average;  RA - Regional Average.