“…Considering that 14 C specific activities of plants may vary according to the atmospheric 14 C: 12 C ratio, many studies have investigated atmospheric 14 C activities in the vicinity of nuclear power plants using vegetation as bioindicators (Obelic et al, 1986;Levin et al, 1988;Loosli and Oeschger, 1989;Buzinny et al, 1995;Milton et al, 1995;Stenström et al, 1996b;Buzinny et al, 1998;Milton and Kramer, 1998;Stenström et al, 1998;Mikhajlov et al, 1999;Magnusson et al, 2004).…”