Peter B. McMahon

8.0k total citations · 1 hit paper
115 papers, 6.1k citations indexed

About

Peter B. McMahon is a scholar working on Geochemistry and Petrology, Environmental Engineering and Water Science and Technology. According to data from OpenAlex, Peter B. McMahon has authored 115 papers receiving a total of 6.1k indexed citations (citations by other indexed papers that have themselves been cited), including 63 papers in Geochemistry and Petrology, 55 papers in Environmental Engineering and 36 papers in Water Science and Technology. Recurrent topics in Peter B. McMahon's work include Groundwater and Isotope Geochemistry (62 papers), Groundwater flow and contamination studies (49 papers) and Atmospheric and Environmental Gas Dynamics (32 papers). Peter B. McMahon is often cited by papers focused on Groundwater and Isotope Geochemistry (62 papers), Groundwater flow and contamination studies (49 papers) and Atmospheric and Environmental Gas Dynamics (32 papers). Peter B. McMahon collaborates with scholars based in United States, United Kingdom and France. Peter B. McMahon's co-authors include Francis H. Chapelle, J. K. Böhlke, Kevin F. Dennehy, R. C. Reedy, Virginia L. McGuire, William M. Alley, Claudia C. Faunt, Bridget R. Scanlon, Laurent Longuevergne and Breton W. Bruce and has published in prestigious journals such as Nature, Proceedings of the National Academy of Sciences and Environmental Science & Technology.

In The Last Decade

Peter B. McMahon

113 papers receiving 5.5k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Groundwater depletion and sustainability of irrigation in the US High Plains and Central Valley

2012 987 citations Virginia L. McGuire, Peter B. McMahon et al. profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Peter B. McMahon United States	40	2.4k	2.3k	2.0k	1.6k	1.1k	115	6.1k
Daren C. Gooddy United Kingdom	40	1.8k 0.7×	1.5k 0.7×	1.5k 0.7×	1.4k 0.9×	524 0.5×	151	5.0k
Kevin M. Hiscock United Kingdom	36	1.8k 0.7×	1.7k 0.7×	2.0k 1.0×	1.3k 0.8×	894 0.8×	93	4.9k
Peter Dillon Australia	45	1.4k 0.6×	2.5k 1.1×	2.2k 1.1×	1.5k 0.9×	888 0.8×	209	7.0k
Mario Schirmer Switzerland	41	1.4k 0.6×	2.7k 1.2×	2.3k 1.2×	882 0.5×	987 0.9×	176	5.6k
Abhijit Mukherjee India	41	1.8k 0.8×	1.5k 0.7×	1.8k 0.9×	1.7k 1.0×	830 0.8×	154	5.6k
Dongmei Han China	37	2.4k 1.0×	1.8k 0.8×	1.7k 0.9×	649 0.4×	594 0.6×	89	4.8k
Holly A. Michael United States	41	2.8k 1.2×	1.9k 0.8×	804 0.4×	2.5k 1.6×	423 0.4×	112	5.9k
Bernhard Mayer Canada	51	4.0k 1.7×	2.4k 1.0×	2.2k 1.1×	3.6k 2.2×	1.6k 1.5×	213	9.1k
John E. McCray United States	39	1.1k 0.5×	2.5k 1.1×	1.4k 0.7×	1.1k 0.7×	919 0.9×	158	5.2k
Seong‐Taek Yun South Korea	41	2.8k 1.2×	1.9k 0.8×	2.0k 1.0×	1.0k 0.6×	270 0.3×	263	6.8k

Countries citing papers authored by Peter B. McMahon

Since Specialization

Citations

This map shows the geographic impact of Peter B. McMahon's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Peter B. McMahon with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Peter B. McMahon more than expected).

Fields of papers citing papers by Peter B. McMahon

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Peter B. McMahon. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Peter B. McMahon. The network helps show where Peter B. McMahon may publish in the future.

Co-authorship network of co-authors of Peter B. McMahon

This figure shows the co-authorship network connecting the top 25 collaborators of Peter B. McMahon. A scholar is included among the top collaborators of Peter B. McMahon based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Peter B. McMahon. Peter B. McMahon is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Landon, Matthew K., Michael J. Stephens, Peter B. McMahon, et al.. (2024). Assessing potential effects of oil and gas development activities on groundwater quality near and overlying the Elk Hills and North Coles Levee Oil Fields, San Joaquin Valley, California. PLOS Water. 3(8). e0000258–e0000258. 1 indexed citations

Stanton, Jennifer S., et al.. (2023). Groundwater quality near the Montebello Oil Field, Los Angeles County, California. Scientific investigations report. 2 indexed citations

McMahon, Peter B., et al.. (2023). Fluid migration pathways to groundwater in mature oil fields: Exploring the roles of water injection/production and oil-well integrity in California, USA. The Science of The Total Environment. 900. 166400–166400. 7 indexed citations

Hansen, Angela M., Tamara E. C. Kraus, Matthew K. Landon, & Peter B. McMahon. (2023). Spectral characterization of dissolved organic matter in groundwater to assess mixing with oil-field water near selected oil fields, southern California. The Science of The Total Environment. 905. 166970–166970. 2 indexed citations

McMahon, Peter B., et al.. (2023). Multiple-well monitoring site within the Poso Creek Oil Field, Kern County, California. Antarctica A Keystone in a Changing World. 1 indexed citations

Jurgens, Bryant C., et al.. (2022). Over a third of groundwater in USA public-supply aquifers is Anthropocene-age and susceptible to surface contamination. Communications Earth & Environment. 3(1). 29 indexed citations

Belitz, Kenneth, Miranda S. Fram, Bruce D. Lindsey, et al.. (2022). Quality of Groundwater Used for Public Supply in the Continental United States: A Comprehensive Assessment. ACS ES&T Water. 2(12). 2645–2656. 20 indexed citations

McMahon, Peter B., Andrea K. Tokranov, Laura M. Bexfield, et al.. (2022). Perfluoroalkyl and Polyfluoroalkyl Substances in Groundwater Used as a Source of Drinking Water in the Eastern United States. Environmental Science & Technology. 56(4). 2279–2288. 117 indexed citations

McMahon, Peter B., et al.. (2021). Groundwater Quality of Aquifers Overlying the Oxnard Oil Field, Ventura County, California. The Science of The Total Environment. 771. 144822–144822. 15 indexed citations

10.

McMahon, Peter B., Michael T. Wright, Robert A. Anders, et al.. (2021). Relative risk of groundwater-quality degradation near California (USA) oil fields estimated from 3H, 14C, and 4He. Applied Geochemistry. 131. 105024–105024. 5 indexed citations

11.

Lorah, Michelle M., Justin T. Kulongoski, Peter B. McMahon, & Matthew K. Landon. (2019). Volatile Organic Compounds in Produced Water from Four Oil Fields in California. AGU Fall Meeting Abstracts. 2019. 1 indexed citations

12.

McMahon, Peter B., Bruce D. Lindsey, Andrew G. Hunt, et al.. (2019). Hydrocarbons in Upland Groundwater, Marcellus Shale Region, Northeastern Pennsylvania and Southern New York, U.S.A.. Environmental Science & Technology. 53(14). 8027–8035. 22 indexed citations

13.

Kulongoski, Justin T. & Peter B. McMahon. (2019). Methane emissions from groundwater pumping in the USA. npj Climate and Atmospheric Science. 2(1). 24 indexed citations

14.

McMahon, Peter B., et al.. (2018). Methane in groundwater from a leaking gas well, Piceance Basin, Colorado, USA. The Science of The Total Environment. 634. 791–801. 35 indexed citations

15.

Stanton, Jennifer S., David W. Anning, Craig J. Brown, et al.. (2017). Brackish groundwater in the United States. USGS professional paper. 97 indexed citations

16.

Chapelle, Francis H., Paul M. Bradley, Peter B. McMahon, Karl Kaiser, & Ronald Benner. (2011). Dissolved Oxygen as an Indicator of Bioavailable Dissolved Organic Carbon in Groundwater. Ground Water. 50(2). 230–241. 32 indexed citations

17.

Jurgens, Bryant C., Peter B. McMahon, Francis H. Chapelle, & Sandra M. Eberts. (2009). An Excel Workbook for Identifying Redox Processes in Ground Water. Antarctica A Keystone in a Changing World. 90 indexed citations

18.

McMahon, Peter B., Timothy K. Cowdery, Francis H. Chapelle, & Bryant C. Jurgens. (2009). Redox Conditions in Selected Principal Aquifers of the United States. Fact sheet. 16 indexed citations

19.

Bruce, Breton W., Jason J. Gurdak, Peter B. McMahon, & Randall T. Hanson. (2005). Response of deep percolation in the vadose zone to climate variability. AGU Fall Meeting Abstracts. 2005. 1 indexed citations

20.

Pomes, Michael L., Donald H. Wilkison, & Peter B. McMahon. (1998). NITROUS OXIDE FLUXES FROM A CLAYPAN SOIL OVERLYING NITRATE-ENRICHED GLACIAL DRIFT. 6. 1–14. 12 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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