20th century trends and budget implications of chloroform and related tri-and dihalomethanes inferred from firn air

• Published in: Atmospheric Chemistry and Physics
• Main Authors: Worton, D. R., Sturges, W. T., Schwander, J., Mulvaney, R., Barnola, J.-M., Chappellaz, J.
• Format: Text
• Language: unknown
• Published: Gottingen, Copernicus GmbH 2022
• Subjects: Dronning Maud Land; Canada; Greenland; Devon Island; Antarc*; Antarctica; DML; NGRIP; North Greenland
• Online Access: https://doi.org/10.5194/acp-6-2847-2006; https://infoscience.epfl.ch/record/298254/files/acp-6-2847-2006.pdf; http://infoscience.epfl.ch/record/298254

Four trihalomethane (THM; CHCl3, CHBrCl2, CHBr 2Cl and CHBr3) and two dihalomethane (DHM; CH 2BrCl and CH2Br2) trace gases have been measured in air extracted from polar firn collected at the North Greenland Icecore Project (NGRIP) site. CHCl3 was also measured in firn air from Devon Island (DI), Ca...