d.pollZH16: Air Pollution Monitoring in Zurich
In plgraphics: User Oriented Plotting Functions

d.pollZH16

R Documentation

Air Pollution Monitoring in Zurich

Description

Hourly air pollution measurements from a station in the city center of Zurich, in a courtyard, for the whole year 2016, resulting in 8784 measurements of the two pollution variables ozone and nitrogen dioxyde, the three weather variables temperature, radiation and precipitation, and 8 variables characterizing the date.

pollZH16d is the subset of measurements for hour=15.

Usage

data("d.pollZH16")

Format

A data frame with 8784 observations on the following 13 variables.

date: date of the measurement
hour: hour of the measurement
O3: Ozone
NO2: Nitroge dioxyde
temp: temperature
rad: solar radiation
prec: precipitation
dateshort: two letter identification of the day. A-L encodes the month; 1-9, a-x encodes the day within month.
weekday: day of the week
month: month
sumhalf: indicator for summer half year (April to Sept)
sunday: logical: indicator for Sunday
daytype: a factor with levels work for working day, Sat and Sun

Note

Legal threshold for NO2 in the EU: The threshold of 200 micrograms/m3 must not be exceeded by more than 18 hourly measurements per year.
Source: Umweltbundesamt, Germany http://www.umweltbundesamt.de/daten/luftbelastung/stickstoffdioxid-belastung#textpart-2

Source

Bundesamt fur Umwelt (BAFU), Schw. Eidgenossenschaft https://www.bafu.admin.ch/bafu/de/home/themen/luft/zustand/daten/datenabfrage-nabel.html
The data set has been generated by downloading the files for the individual variables, converting the entries with hour==24 to hour==0 of the following day and restricting the data to year 2016.

Examples

data(d.pollZH16)
dp <- d.pollZH16
names(dp)

dp$date <- gendateaxis(date=dp$date, hour=dp$hour)

plyx(O3+NO2~date, data=dp, subset= month=="May", type="l")

dp$summer <- dp$month %in% c("Jun","Jul","Aug") 
dp$daylight <- dp$hour>8 & dp$hour<17
plmatrix(O3~temp+logst(rad)+logst(prec), data=dp, 
         subset = summer & daylight)

plgraphics documentation built on Oct. 19, 2023, 3 p.m.