INTERA:Benzene concentrations in Europe: Difference between revisions

Revision as of 11:51, 23 March 2011

This page is a knowledge crystal of subtype variable. The page identifier is Op_en5017
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for completing the entries for new variables.

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

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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"
levels(benz$Environment_spec) <- gsub("'", "", levels(benz$Environment_spec))
#library(OpasnetBaseUtils)
#op_baseWrite("opasnet_base", benz)

Result

If possible, a numerical expression or distribution.

Keywords

References

...will appear here automatically, if cited above using the <ref> </ref> tags.
Additional references can also be listed here.

Related files

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