cetesb_retrieve_pol: Download criteria pollutants from CETESB QUALAR

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

Download criteria pollutants from CETESB QUALAR

Description

This function download the criteria pollutants from one air quality station (AQS) of CETESB AQS network. It will pad out the date with missing data with NA. This function required to have an account in CETESB QUALAR.

Usage

cetesb_retrieve_pol(
  username,
  password,
  aqs_code,
  start_date,
  end_date,
  verbose = TRUE,
  to_csv = FALSE,
  csv_path = ""
)

Arguments

username	User name of CETESB QUALAR
password	User name's password of CETESB QUALAR
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
csv_path	Path to save the csv file

Value

data.frame with O3, NO, NO2, PM2.5, PM10 and CO information. Units are ug/m3 except for CO which is in ppm, and NOx which is in ppb.

Examples

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

pin_pol <- cetesb_retrieve_pol(my_user_name, my_pass_word, pin_code,
                               start_date, end_date)


## End(Not run)

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