R: PCB138 measurements in sediment at the NCP, the Dutch part of...
pcb
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PCB138 measurements in sediment at the NCP, the Dutch part of the North Sea
Description
PCB138 measurements in sediment at the NCP, which is the
Dutch part of the North Sea
Usage
data(pcb)
Format
This data frame contains the following columns:
year
measurement year
x
x-coordinate; UTM zone 31
y
y-coordinate; UTM zone 31
coast
distance to coast of the Netherlands, in km.
depth
sea water depth, m.
PCB138
PCB-138, measured on the sediment fraction smaller than
63 mu, in mu g/kg dry matter; BUT SEE NOTE BELOW
yf
year; as factor
Note
A note of caution: The PCB-138 data are provided only to be able
to re-run the analysis done in Pebesma and Duin (2004; see references
below). If you want to use these data for comparison with PCB measurements
elsewhere, or if you want to compare them to regulation standards, or
want to use these data for any other purpose, you should first contact
mailto:basisinfodesk@rikz.rws.minvenw.nl. The reason for this is
that several normalisations were carried out that are not reported here,
nor in the paper below.
Pebesma, E. J., & Duin, R. N. M. (2005). Spatial patterns of temporal
change in North Sea sediment quality on different spatial scales. In
P. Renard, H. Demougeot-Renard & R. Froidevaux (Eds.), Geostatistics for
Environmental Applications: Proceedings of the Fifth European Conference
on Geostatistics for Environmental Applications (pp. 367-378): Springer.