147However, that situation in itself demonstrates, without there being any need to examine in greater detail the content of the air quality plans drawn up by the Italian Republic, that, in the present case, that Member State has not implemented appropriate and effective measures to ensure that the period of time during which the limit values for PM10 are exceeded is kept ‘as short as possible’ within the meaning of the second subparagraph of Article 23(1) of Directive 2008/50 (see, to that effect, judgments of 5 April 2017, Commission v Bulgaria, C‑488/15, EU:C:2017:267, paragraph 117, and of 30 April 2020, Commission v Romania (Exceedance of limit values for PM10), C‑638/18, not published, EU:C:2020:334, paragraph 123, and the case-law cited).
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