Fish and other seafood from the open seas?: is it safe?

alimentos de origen marino arsenic arsenico barents sea bifenilos policlorados cadmio cadmium caesium cesio cesium chemical composition composition chimique contaminantes radiactivos ddt fish fish products fishes food safety halogenated hydrocarbons hch hidrocarburos halogenados inocuidad alimentaria mar barents mar de noruega mar del norte mer de barents mer du nord mercure mercurio mercury north sea noruega norway norwegian sea peces pescado poisson (aliment) poisson (animal) polluant radioactif polychlorinated biphenyls productos derivados del pescado produit alimentaire origine marine radioactive pollutants seafoods