nabel {nabel}

R Documentation

Plot NABEL data

Description

The National Air Pollution Monitoring Network (NABEL) provides time series data on air-borne pollutant concentrations from a network of measurement stations across Switzerland. The data can be queried with an HTML form (see sources). This is a simple function that serves as a wrapper for that HTML form. Its main purpose is to demonstrate some of the capabilities of http://opencpu.org/ by Jeroen Ooms.

Usage

  nabel(pollutant = c("o3", "no2", "so2", "co", "nmvoc", "pm10", "pm1", "cpc", "temp", "prec", "rad"),
    stations = c("Bern-Bollwerk", "Lausanne-César-Roux", "Lugano-Università", "Zürich-Kaserne", "Basel-Binningen", "Dübendorf-Empa", "Härkingen-A1", "Sion-Aéroport-A9", "Magadino-Cadenazzo", "Payerne", "Tänikon", "Lägeren", "Chaumont", "Rigi-Seebodenalp", "Davos-Seehornwald", "Jungfraujoch"),
    interval = c("hourly", "daily"),
    period = c("day", "week", "month", "free"),
    from = NULL, to = NULL)

Arguments

pollutant	pollutant or meteorological variable to plot
stations	measurement stations (either by number or name) to include
interval	plot hourly or daily means
period	time series period
from	start day of time series period (if period = "free")
to	end day of time series period (if period = "free")

Details

A single pollutant or meteorological variable is plotted (default is o3):

1. o3 (Ozone (O3))

2. no2 (Nitrogen dioxide (NO2))

3. so2 (Sulfur dioxide (SO2))

4. co (Carbon monoxide (CO))

5. nmvoc (Non-methane volatile organic compounds (NMVOC))

6. pm10 (Particulate matter (PM10))

7. pm1 (Particulate matter (PM1))

8. cpc (Particulate number concentration (CPC))

9. temp (Temperature (TEMP))

10. prec (Precipitation (PREC))

11. rad (Global radiation (RAD))

One or several measurement stations have to be included (default is to include all 16):

1. Bern-Bollwerk

2. Lausanne-César-Roux

3. Lugano-Università

4. Zürich-Kaserne

5. Basel-Binningen

6. Dübendorf-Empa

7. Härkingen-A1

8. Sion-Aéroport-A9

9. Magadino-Cadenazzo

10. Payerne

11. Tänikon

12. Lägeren

13. Chaumont

14. Rigi-Seebodenalp

15. Davos-Seehornwald

16. Jungfraujoch

For the time series measurement interval, you have a choice between hourly and daily means (default is hourly).

The depicted time period can be the last day, week, month, or you can freely choose the period by specifying a start date with from and an end date with to (both need to be given in a format that can be converted to an object of class Date with as.Date() - e.g. in ISO 8601 format, i.e. YYYY-MM-DD).

Value

none (invisible NULL)

Note

Not all pollutants are measured at all stations.

Author(s)

Thomas Zumbrunn (http://thomas.zumbrunn.name/)

Source

http://www.empa.ch/nabel/ and http://www.bafu.admin.ch/luft/luftbelastung/blick_zurueck/datenabfrage/index.html?lang=en

Examples

## plot daily mean NO2 concentrations at three stations
## from 1 January 2011 up to today
## Not run: 
nabel("no2",
      c("Bern", "Basel", "Lausanne"),
      "daily",
      "free",
      "2011-01-01",
      Sys.Date())

## End(Not run)