Fig. 1
From: Indoor radon exposure and lung cancer: a review of ecological studies
Mean indoor radon concentrations in homes throughout 251 administrative districts in Korea (December 2011 - May 2012). Source: National Institute of Environmental Research in Korea. 1.Hwacheon-gun(562), 2.Jinan-gun(412), 3.Yeongwol-gun(335), 4.Jangsu-gun(310), 5.Muju-gun(290), 6.Goseong-gun(288), 7.Hoengseong-gun(285), 8.Pocheon-si(277), 9.Taebaek-si(262), 10.Damyang-gun(258), 11.Hongcheon-gun(255), 12.Wanju_Gun(252), 13.Goheung-gun(244), 14.Inje-gun(241), 15.Cheongsong-gun(235), 16.Geumsan-gun(232), 17.Sunchang-gun(229), 18.Danyang-gun(222), 19.Boeun-gun(222), 20.Nonsan-si(220), 21.Jeongseon-gun(217), 22.Yeongam-gun(216), 23.Mungyeong_si(214), 24.Pyeongchang-gun(214), 25.Gapyeong-gun(211), 26.Sokcho-si(211),…, 247.Seoul Seongdong-gu(58), 248.Inchen Dong-gu(57), 249.Ulsan Nam-gu(46), 250.Ulsan Jung-gu(44). 251.Changwon Seongsan-gu(31)