2 results match your criteria: "Atmospheric Research and Instrumentation Branch. National Institute for Aerospace Technology (INTA)[Affiliation]"

Surface ozone trends observed at El Arenosillo observatory for the last 22 years (2000-2021) were investigated. The trends for daily averages and daily 5th and 95th percentiles were 1.2 ± 0.

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Eleven years, January 2008 to June 2019, of hourly nitrogen dioxide (NO) levels recorded at El Arenosillo observatory (Southwestern Europe) were analyzed. Annual averages ranged between 4 μg m and 6 μg m with peaks exceeding 40 μg m. A slight monthly variation was observed with maximum and minimum values in the cold (∼6 μg m) and warm (∼4 μg m) seasons respectively.

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