To cite qualR in publications use: Gavidia-Calderón, M., Schuch, D., Andrade, Maria de Fatima (2022). qualR: An R package to download Sao Paulo and Rio de Janeiro air pollution data. URL: https://docs.ropensci.org/qualR/ A BibTeX entry for LaTeX users is @Manual{, title = {qualR: An R package to download São Paulo and Rio de Janeiro air pollution data}, doi = {10.5281/zenodo.5904262}, author = {Mario Gavidia-Calderón and Daniel Schuch and Maria de Fatima Andrade}, year = {2022}, url = {https://docs.ropensci.org/qualR/}, }