@article{rocha_vasconcellos_ávila_souza_reis_oliveira_sanchez-ccoyllo_2012,  title={Seasonal distribution of airborne trace elements and water-soluble ions in São Paulo Megacity, Brazil},  volume={23},  ISSN={0103-5053},  url={https://doi.org/10.1590/S0103-50532012005000062},  DOI={10.1590/S0103-50532012005000062},  number={10},  journal={Journal of the Brazilian Chemical Society},  publisher={Sociedade Brasileira de Química},  author={Rocha, Gisele O. Da and Vasconcellos, Pérola C. and Ávila, Simone G. and Souza, Davi Z. and Reis, Eduardo A. O. and Oliveira, Pedro V. and Sanchez-Ccoyllo, Odon},  year={2012},  month={Oct},  pages={1915–1924} }