Measurements of HCFC-142b and HCFC-141b in the Cape Grim air archive: 1978-1993

D.E. Oram; C.E. Reeves; S.A. Penkett; P.J. Fraser

doi:10.1029/95GL02849

Measurements of HCFC-142b and HCFC-141b in the Cape Grim air archive: 1978-1993

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Abstract

Stored air samples collected at Cape Grim, Tasmania since 1978, have been analyzed by GC-MS to investigate the change in the tropospheric concentration of HCFC-142b and HCFC-141b over the past 15 years. Between April 1978 and September 1993 the concentration of HCFC-142b rose, with the majority of this increase occurring from 1989 onwards. From 1989 to 1991 the average concentration of HCFC-141b was 0.08 ± 0.01 pptv. A very sharp increase in concentration began in 1992 however. Using a 2-D model of atmospheric chemistry, constrained by these observations, global emissions of these two compounds have been calculated and found to differ from other estimates. -from Authors

Original language	English
Pages (from-to)	2741-2744
Number of pages	4
Journal	Geophysical Research Letters
Volume	22
Issue number	20
DOIs	https://doi.org/10.1029/95GL02849
Publication status	Published - 15 Oct 1995

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title = "Measurements of HCFC-142b and HCFC-141b in the Cape Grim air archive: 1978-1993",

abstract = "Stored air samples collected at Cape Grim, Tasmania since 1978, have been analyzed by GC-MS to investigate the change in the tropospheric concentration of HCFC-142b and HCFC-141b over the past 15 years. Between April 1978 and September 1993 the concentration of HCFC-142b rose, with the majority of this increase occurring from 1989 onwards. From 1989 to 1991 the average concentration of HCFC-141b was 0.08 ± 0.01 pptv. A very sharp increase in concentration began in 1992 however. Using a 2-D model of atmospheric chemistry, constrained by these observations, global emissions of these two compounds have been calculated and found to differ from other estimates. -from Authors",

author = "D.E. Oram and C.E. Reeves and S.A. Penkett and P.J. Fraser",

year = "1995",

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T1 - Measurements of HCFC-142b and HCFC-141b in the Cape Grim air archive

T2 - 1978-1993

AU - Oram, D.E.

AU - Reeves, C.E.

AU - Penkett, S.A.

AU - Fraser, P.J.

PY - 1995/10/15

Y1 - 1995/10/15

N2 - Stored air samples collected at Cape Grim, Tasmania since 1978, have been analyzed by GC-MS to investigate the change in the tropospheric concentration of HCFC-142b and HCFC-141b over the past 15 years. Between April 1978 and September 1993 the concentration of HCFC-142b rose, with the majority of this increase occurring from 1989 onwards. From 1989 to 1991 the average concentration of HCFC-141b was 0.08 ± 0.01 pptv. A very sharp increase in concentration began in 1992 however. Using a 2-D model of atmospheric chemistry, constrained by these observations, global emissions of these two compounds have been calculated and found to differ from other estimates. -from Authors

AB - Stored air samples collected at Cape Grim, Tasmania since 1978, have been analyzed by GC-MS to investigate the change in the tropospheric concentration of HCFC-142b and HCFC-141b over the past 15 years. Between April 1978 and September 1993 the concentration of HCFC-142b rose, with the majority of this increase occurring from 1989 onwards. From 1989 to 1991 the average concentration of HCFC-141b was 0.08 ± 0.01 pptv. A very sharp increase in concentration began in 1992 however. Using a 2-D model of atmospheric chemistry, constrained by these observations, global emissions of these two compounds have been calculated and found to differ from other estimates. -from Authors

UR - https://www.scopus.com/pages/publications/0029502575

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DO - 10.1029/95GL02849

M3 - Article

AN - SCOPUS:0029502575

SN - 0094-8276

VL - 22

SP - 2741

EP - 2744

JO - Geophysical Research Letters

JF - Geophysical Research Letters

IS - 20

ER -

Measurements of HCFC-142b and HCFC-141b in the Cape Grim air archive: 1978-1993

Abstract

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