cetesb_retrieve: Download a single parameter from CETESB QUALAR system

In ropensci/qualR: An R package to download São Paulo and Rio de Janeiro air pollution data

Download a single parameter from CETESB QUALAR system

Description

This function download one parameter from one air quality stations (AQS) of CETESB AQS network. It will pad out the date with missing data with NA.

Usage

cetesb_retrieve(
  username,
  password,
  pol_code,
  aqs_code,
  start_date,
  end_date,
  verbose = TRUE,
  to_csv = FALSE
)

Arguments

username	User name of CETESB QUALAR
password	User name's password of CETESB QUALAR
pol_code	Code of parameter
aqs_code	Code of AQS
start_date	Date to start downloading in dd/mm/yyyy
end_date	Date to end downloading in dd/mm/yyyy
verbose	Print query summary
to_csv	Creates a csv file. FALSE by default

Value

data.frame with the selected parameter information

Examples

## Not run: 
# Downloading Ozone information from Pinheiros AQS
# from January first to 7th of 2020
my_user_name <- "John Doe"
my_pass_word <- "drowssap"
o3_code <- 63  # Check with cetesb_param
pin_code <- 99 # Check with cetesb_aqs
start_date <- "01/01/2020"
end_date <- "07/01/2020"

pin_o3 <- cetesb_retrieve(my_user_name, my_pass_word, o3_code, pin_code,
                          start_date, end_date)


## End(Not run)

ropensci/qualR documentation built on June 13, 2025, 3:06 a.m.