Gaseous HCI at a remote tropical continental site

Abstract

Hydrochloric acid was measured in Parupa (5°41′N; 61°33′W), Canaima National Park, a pristine region located in the southern part of Venezuela, during January and September 2000. During both periods the HCl concentration was quite variable, with relatively higher levels during September and an overall median value of 37 pptv. An analysis of possible sources suggests that the photo-oxidation of chlorocarbons should be a significant source of HCl at the Parupa site.