Air pollution by ozone in Europe in summer 2003 : overview of exceedances of EC ozone threshold values during the summer season april-august 2003 and comparisons with previous years / prepared by: Jaroslav Fiala ... [et al.] ; European Environment Agency. —  Luxembourg : Office for Official Publications of the European Communities, 2003. —  CIDIMA. —  26 p. : il. ; 30 cm. — ( Topic report ; 3)
    ISBN 92-9167-633-0
   1. Contaminación atmosférica.2. Capa de ozono.3. Informes ambientales.4. Unión Europea. I. Fiala, Jaroslav. II. Agencia Europea de Medio Ambiente.
2.4.3