The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
Evidence for variability of atmospheric hydroxyl radicals over the past quarter century
Open accessAbstract
The hydroxyl free radical (OH) is the major oxidizing chemical in the atmosphere, destroying about 3.7 petagrams (Pg) of trace gases each year, including many gases involved in ozone depletion, the greenhouse effect and urban air pollution. Measurements of 1,1,1‐trichloroethane (methyl chloroform, CH 3 CCl 3), which reacts with OH, provide the most accurate method currently utilized for determining the global behavior of OH. We report that CH 3 CCl 3 levels rose steadily from 1978 to reach a maximum in 1992 and have since decreased rapidly to levels in 2004 about 30% of the levels when measurements began in 1978. Analysis of these observations shows that global average OH levels had a small maximum around 1989 and a larger minimum around 1998, with OH concentrations in 2003 being comparable to those in 1979. This post‐1998 recovery of OH reported here contrasts with the situation 4 years ago when reported OH was decreasing. The 1997–1999 OH minimum coincides with, and is likely caused by, major global wildfires and an intense El Nino event at this time.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Evidence for Substantial Variations of Atmospheric Hydroxyl Radicals in the Past Two Decades
Prinn, R. G., Huang, J., Weiss, R. F., Cunnold, D. M., Fraser, P. J., Simmonds, P. G., McCulloch, A., Harth, C., Salameh, P., O'Doherty, S., et al. (2001) · Science · doi:10.1126/science.1058673 · Cited by 695
Self-citation
Cited by
Role of atmospheric oxidation in recent methane growth
Rigby, M., Montzka, S. A., Prinn, R. G., White, J. W. C., Young, D., O’Doherty, S., Lunt, M. F., Ganesan, A. L., Manning, A. J., Simmonds, P. G., et al. (2017) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.1616426114 · Cited by 445
Self-citationAnalysis of present-day and future OH and methane lifetime in the ACCMIP simulations
Voulgarakis, A., Naik, V., Lamarque, J.-F., Shindell, D. T., Young, P. J., Prather, M. J., Wild, O., Field, R. D., Bergmann, D., Cameron-Smith, P., et al. (2013) · Atmospheric chemistry and physics · doi:10.5194/acp-13-2563-2013 · Cited by 324
Naik, V., Voulgarakis, A., Fiore, A. M., Horowitz, L. W., Lamarque, J.-F., Lin, M., Prather, M. J., Young, P. J., Bergmann, D., Cameron-Smith, P. J., et al. (2013) · Atmospheric Chemistry and Physics · doi:10.5194/acp-13-5277-2013 · Cited by 371
Huijnen, V., Williams, J., van Weele, M., van Noije, T., Krol, M., Dentener, F., Segers, A., Houweling, S., Peters, W., de Laat, J., et al. (2010) · Geoscientific Model Development · doi:10.5194/gmd-3-445-2010 · Cited by 349
Holmes, C. D., Prather, M. J., Søvde, O. A., & Myhre, G. (2013) · Atmospheric chemistry and physics · doi:10.5194/acp-13-285-2013 · Cited by 232
Metadata
- Authors
- Prinn, R. G., Huang, J., Weiss, R. F., Cunnold, D. M., Fraser, P. J., Simmonds, P. G., McCulloch, A., Harth, C., Reimann, S., Salameh, P., O'Doherty, S., Wang, R. H. J., Porter, L. W., Miller, B. R., & Krummel, P. B.
- Venue
- Geophysical Research Letters
- Publisher
- American Geophysical Union (AGU)
- Published
- 2005-04
- Volume
- 32
- Issue
- 7
- ISSN
- 0094-8276 (ISSN-L)
- 1944-8007
- OpenAlex
- W2102785447
- Cited by
- 280
- References
- 1
- FWCI
- 8.53
- Type
- journal article
- Language
- en
- Open access
- green
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Evidence for variability of atmospheric hydroxyl radicals over the past quarter century. https://app.cochat.ai/papers/10.1029/2004gl022228
- The paper
- Prinn, R. G., Huang, J., Weiss, R. F., Cunnold, D. M., Fraser, P. J., Simmonds, P. G., McCulloch, A., Harth, C., Reimann, S., Salameh, P., O'Doherty, S., Wang, R. H. J., Porter, L. W., Miller, B. R., & Krummel, P. B. (2005). Evidence for variability of atmospheric hydroxyl radicals over the past quarter century. Geophysical Research Letters. https://doi.org/10.1029/2004gl022228
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
