title: Journal of environmental radioactivity. Natural radiation. Foreword.
authors: Radiological Protection Institute of Ireland, Ireland. tcolgan@rpii.ie
authors: P A
authors: PA
authors: Colgan
authors: James
authors: J
authors: McLaughlin
authors: Luis M
authors: LM
authors: Nieto
mesh_terms: D001417:Background Radiation; D004777:Environment; D010506:Periodicals as Topic / Q000592:standards* / Q000639:trends; D011851:Radioactivity