Fluorine and the environment : atmospheric chemistry emissions & lithosphere Fluorine in the atmosphere Philippe Ricaud and Franck Lefèvre Evaluation and selection of CFC alternatives Akira Sekiya Masaaki Yamabe Kazuaki Tokuhashi Yasuo Hibino Ryoichi Imasu and Hidekazu Okamoto Trifluoromethyl sulphur pentafluoride SF₅CF₃ : atmospheric chemistry and its environmental importance via the greenhouse effect Richard P. Tuckett Production of second or third generation fluorine based refrigerants from (photo) dechlorination of fluorocarbon wastes Hideo Nishiumi Koichi Sato and Ryo Kato Volcanic fluorine emissions : observations by Fourier transform infrared spectroscopy Georgina M. Sawyer and Clive Oppenheimer Fluorine and coexisting volatiles in the geosphere : the role in Japanese volcanic rocks Katsuro Anazawa Fluorine compounds in gaseous emissions from industrial sources : the case of ceramic industries Giuliana Bonvicini Alberto Fregni and Carlo Palmonari Some problems relating to fluorides in the environment : effects on plants and animals Alan W. Davison and Leonard H. Weinstein