Air Quality Measurements in Spain from 2011 to 2018 R package airqualityES version 1.0.0 These dataset contains daily quality air measurements in Spain over a period of 18 years (from 2001 to 2018). The measurements refer to several pollutants. These data are openly published by the Government of Spain. The datasets were originally spread over a number of files and formats. Here, the same information is contained in simple dataframe for convenience of researches, journalists or general public. See the Spanish Government website <http://www.miteco.gob.es/> for more information. Software Depends: R (>= 3.4.0) Imports: tibble (>= 2.1.3) Suggests: knitr, rmarkdown Jose V. Die <jose.die@uco.es> Comprehensive R Archive Network (CRAN) Jose V. Die [aut, cre] (ORCID: <https://orcid.org/0000-0002-7506-8590>), Jose R. Caro [ctb] CC BY-SA 4.0 2020-02-29 application/tgz https://CRAN.R-project.org/package=airqualityES doi:10.32614/CRAN.package.airqualityES