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Figure 15.
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Pourcentage des moyennes quotidiennes de SO2 dépassant la norme OMS pour les quatre stations à Annaba en juillet, aout et septembre (données SAMASAFIA 2012-2014). Percentage of daily SO2 averages exceeding the WHO standard for the four stations in Annaba in July, August and September (SAMASAFIA 2012-2014 data).
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