To cite package ‘raqs’ in publications use:

Joo J, Himes B (2023). raqs: Interface to the US EPA Air Quality System (AQS) API. R package version 1.0.2, https://github.com/himesgroup/raqs.

Corresponding BibTeX entry:

  @Manual{,
    title = {raqs: Interface to the US EPA Air Quality System (AQS)
      API},
    author = {Jaehyun Joo and Blanca Himes},
    year = {2023},
    note = {R package version 1.0.2},
    url = {https://github.com/himesgroup/raqs},
  }