POPs in Baltic herring

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Question

What are the concentrations of persistent organic pollutants (POPs) in Baltic sea fish.

Answer

POP concentrations in Baltic sea fish have been measured from samples collected in EU-kalat project.

+ Show code- Hide code library(OpasnetUtils) library(ggplot2) dat <- opbase.data("Op_en3104", subset = "POPs") dat <- dat[dat$POP == "2378TCDD" , ] oprint(aggregate(dat$Fish_species, dat[c("Fish_species", "Catch_location", "Matrix")], FUN = length)) dat <- dat[dat$Fish_species == "Baltic herring" , ] ggplot(dat, aes(x = Result, colour = Catch_location))+geom_density()+scale_x_log10()