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Document 71980L0779PRT_57815

    Portaria n. 286/93 de 12/03/1993. Fixa os valores limites e os valores guias no ambiente para o dióxido de enxofre, partículas em suspensão, dióxido de azoto e monóxido de carbono, o valor limite para o chumbo e os valores guias para o ozono. Diário da República I Série B n. 60 de 12/03/1993 Página 1169

    Official publication: Diaro da Republica I; Number: serie B nr 60; Publication date: 12/03/1993