translate English to French: The polychlorinated napthalenes (PCNS), polychlorinated discovery of "mercury depletion events" during the biphenyls (PCBs), and particulate matter (PM), due to ‘Polar Sunrise’ experiments at Alert, together with their toxicity, persistence, potential for long-range elevated snowpack concentrations of mercury, have transport and environmental significance. resulted in a re-examination of our understanding of the atmospheric behaviour of elemental gaseous mercury.
La DRP a mis au point et emploie une méthode d’analyse des proportions de stéréo-isomères dans les toxiques présents dans l’air ambiant et dans les régions sources potentielles.