params_sinaica          Valid air quality parameters
rsinaica                'rsinaica' package
sinaica_param_data      Get air quality data from all stations by
                        parameter
sinaica_station_data    Get air quality data from a single measuring
                        station
sinaica_station_dates   Dates supported by a station
sinaica_station_params
                        Parameters supported by a station
stations_sinaica        Air quality measuring stations in Mexico
