get_zone_imeca: Download pollution data by zone in IMECAs

In diegovalle/aire.zmvm: Download Mexico City Pollution, Wind, and Temperature Data

Download pollution data by zone in IMECAs

Description

Retrieve pollution data in IMECAs by geographic zone from the air quality server at Consultas

Usage

get_zone_imeca(
  criterion,
  pollutant,
  zone,
  start_date,
  end_date,
  showWarnings = TRUE,
  show_messages = TRUE
)

Arguments

criterion	The type of data to download. One of the following options: HORARIOS - Hourly data MAXIMOS" - Daily maximums
pollutant	The type of pollutant to download. One or more of the following options: SO2 - Sulfur Dioxide CO - Carbon Monoxide NO2 - Nitrogen Dioxide O3 - Ozone PM10 - Particulate matter 10 micrometers or less TC - All the pollutants
zone	The geographic zone for which to download data. One or more of the following: NO - Noroeste NE - Noreste CE - Centro SO - Suroeste SE - Sureste TZ - All zones
start_date	The start date in YYYY-MM-DD format (earliest possible value is 2008-01-01).
end_date	The end date in YYYY-MM-DD format.
showWarnings	deprecated; you can use the function suppressWarnings instead.
show_messages	show a message about issues with performing the conversion

Details

Note that in 2015 it was determined that the stations with codes ACO, AJU, INN, MON and MPA would no longer be taken into consideration when computing the pollution index because they didn't meet the objectives of monitoring air quality. They are no longer included in the index, even if they are still part of the SIMAT (Sistema de Monitoreo Atmosférico de la Ciudad de México). Thus, even if they are located inside a zone, they are not included in the pollution values for that zone.

The different geographic zones were defined in the Gaceta Oficial de la Ciudad de México No. 230, 27 de Diciembre de 2016.

Zona Centro: Benito Juárez, Cuauhtémoc, Iztacalco and Venustiano Carranza.

Zona Noreste: Gustavo A. Madero, Coacalco de Berriozábal, Chicoloapan, Chimalhuacán, Ecatepec de Morelos, Ixtapaluca, La Paz, Nezahualcóyotl and Tecámac.

Zona Noroeste: Azcapotzalco, Miguel Hidalgo, Atizapán de Zaragoza, Cuautitlán, Cuautitlán Izcalli, Naucalpan de Juárez, Nicolás Romero, Tlalnepantla de Baz and Tultitlán.

Zona Sureste: Iztapalapa, Milpa Alta, Tláhuac, Xochimilco, Chalco and Valle de Chalco.

Zona Suroeste: Álvaro Obregón, Coyoacán, Cuajimalpa, Magdalena Contreras, Tlalpan and Huixquilucan.

Value

A data.frame with pollution data measured in IMECAs, by geographic zone. The hours correspond to the Etc/GMT+6 timezone, with no daylight saving time

See Also

zones a data.frame containing the municipios belonging to each zone, and Índice de calidad del aire por zonas

Other IMECA functions: get_latest_imeca(), get_station_imeca()

Examples

## There was a regional (NE) PM10 pollution emergency on Jan 6, 2017
get_zone_imeca("MAXIMOS", "PM10", "NE", "2017-01-05", "2017-01-08",
               show_messages = FALSE)

## There was an ozone pollution emergency on May 15, 2017
get_zone_imeca("MAXIMOS", "O3", "TZ", "2017-05-15", "2017-05-15",
               show_messages = FALSE)


## Not run: 
## Download daily maximum PM10 data (particulate matter 10 micrometers or
## less in diameter) from 2015-01-01 to 2016-03-20 for all geographic zones
df <- get_zone_imeca("MAXIMOS", "PM10", "TZ", "2015-01-01", "2016-03-20")
head(df)

## Download hourly O3 pollution data for May 15, 2017. Only the suroeste zone
df2 <- get_zone_imeca("HORARIOS", "O3", "SO", "2017-05-15", "2017-05-15")

## Convert to local Mexico City time
df2$mxc_time <- format(as.POSIXct(paste0(df2$date, " ", df2$hour, ":00"),
                                  tz = "Etc/GMT+6"),
                       tz = "America/Mexico_City")

head(df2)

## End(Not run)

diegovalle/aire.zmvm documentation built on Feb. 16, 2024, 1:14 p.m.