Start date and end date of the range for which SINAICA has data for an air quality station
sinaica_station_dates(station_id, type = "Crude")
the numeric code corresponding to each station. See
The type of data to download. One of the following:
a vector containing the date the station started reporting and end reporting date
## id 271 is Xalostoc. See `stations_sinaica` df <- sinaica_station_dates(271, "Manual") head(df)#>  "1997-01-02" "2015-12-26"