To cite echor in publications use:
Schramm M (2022). echor: Access EPA 'ECHO' Data. R package version 0.1.7, https://CRAN.R-project.org/package=echor.
Corresponding BibTeX entry:
@Manual{, title = {{echor}: Access EPA 'ECHO' Data}, author = {Michael Schramm}, year = {2022}, url = {https://CRAN.R-project.org/package=echor}, do1 = {10.5281/zenodo.3635017}, note = {R package version 0.1.7}, }