To cite package ‘RAQSAPI’ in publications use:

  Mccrowey C, United States Environmental Protection Agency (????).
  “RAQSAPI: A Simple Interface to the US EPA Air Quality System Data
  Mart API.” doi:10.32614/CRAN.package.RAQSAPI
  <https://doi.org/10.32614/CRAN.package.RAQSAPI>.
  <https://usepa.github.io/RAQSAPI/>.

A BibTeX entry for LaTeX users is

  @Misc{mccrowey_etall,
    title = {RAQSAPI: A Simple Interface to the US EPA Air Quality System Data Mart API},
    author = {Clinton Mccrowey and {United States Environmental Protection Agency}},
    doi = {10.32614/CRAN.package.RAQSAPI},
    url = {https://usepa.github.io/RAQSAPI/},
    abstract = {Retrieve air monitoring data and associated metadata from the US Environmental Protection Agency's Air Quality System service using functions. See <https://aqs.epa.gov/aqsweb/documents/data_api.html> for details about the US EPA Data Mart API <https://doi.org/10.32614/CRAN.package.RAQSAPI>.},
    keywords = {United State Environmental Protection Agency,Environmental-data-retrieval,Air-Quality-System,AQS-DataMart,Air-monitoring,Environmental-monitoring,airmonitoring,aqs,datamart,environmental-data-retrieval,environmental-monitoring,r03,rpackage,rprogramming,usepa},
    version = {2.0.6},
  }