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Legambiente. (October 28, 2019). Average annual concentration of fine particulate matter (PM 2.5) in selected Italian cities in 2018 (in micrograms per cubic meter) [Graph]. In Statista. Retrieved April 11, 2021, from https://www.statista.com/statistics/1077707/cities-with-highest-fine-particles-concentration-italy/
Legambiente. "Average annual concentration of fine particulate matter (PM 2.5) in selected Italian cities in 2018 (in micrograms per cubic meter)." Chart. October 28, 2019. Statista. Accessed April 11, 2021. https://www.statista.com/statistics/1077707/cities-with-highest-fine-particles-concentration-italy/
Legambiente. (2019). Average annual concentration of fine particulate matter (PM 2.5) in selected Italian cities in 2018 (in micrograms per cubic meter). Statista. Statista Inc.. Accessed: April 11, 2021. https://www.statista.com/statistics/1077707/cities-with-highest-fine-particles-concentration-italy/
Legambiente. "Average Annual Concentration of Fine Particulate Matter (Pm 2.5) in Selected Italian Cities in 2018 (in Micrograms per Cubic Meter)." Statista, Statista Inc., 28 Oct 2019, https://www.statista.com/statistics/1077707/cities-with-highest-fine-particles-concentration-italy/
Legambiente, Average annual concentration of fine particulate matter (PM 2.5) in selected Italian cities in 2018 (in micrograms per cubic meter) Statista, https://www.statista.com/statistics/1077707/cities-with-highest-fine-particles-concentration-italy/ (last visited April 11, 2021)
