INTERA:Benzene concentrations in Europe: Difference between revisions

Revision as of 07:01, 24 March 2011

This page is a knowledge crystal of subtype variable. The page identifier is Op_en5017
Moderator:Arja (see all)
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Scope

The Benzene concentrations in indoor, outdoor and personal measurements in several European countries.

Definition

Data

Data is obtained from various studies (like Expolis). Refs are added later.

Dependencies

Unit

ug^3m^-3

Formula

+ Show code - Hide code

benz <- read.table("M:/Intera_data/Benzene_EU.csv", header = TRUE, sep = ";", dec = ",", strip.white = TRUE) #.csv based on excel
benz <- reshape(benz, idvar = c("Country", "City", "Year", "Environment", "Environment_spec"), 
times = colnames(benz)[6:ncol(benz)], timevar = "Parameter", varying = 
list(colnames(benz)[6:ncol(benz)]), direction = "long") #reshaped from 2d value representation to 1d
colnames(benz)[7] <- "Result"
benz[benz$Environment=="indoor", "Environment"] <- "Indoor"
#levels(benz$Environment_spec) <- gsub("'", "", levels(benz$Environment_spec))
#library(OpasnetBaseUtils)
#op_baseWrite("opasnet_base", benz)

Result

Keywords

References

Related files

INTERA:Benzene concentrations in Europe. Opasnet . [1]. Accessed 24 Oct 2025.

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 {{variable|moderator=Arja|stub=Yes}}
- '''Boxes with dashed borders''' contain brief guidance text
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 == Scope ==
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 == Result ==
- If possible, a numerical expression or distribution.
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 ==See also==
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 ==Keywords==
 ==References==
- ...will appear here automatically, if cited above using the ''<nowiki><ref> </ref></nowiki>'' tags.
- Additional references can also be listed here.
 <references/>