Charles N. Haas

13.4k total citations · 1 hit paper
278 papers, 9.7k citations indexed

About

Charles N. Haas is a scholar working on Health, Toxicology and Mutagenesis, Water Science and Technology and Infectious Diseases. According to data from OpenAlex, Charles N. Haas has authored 278 papers receiving a total of 9.7k indexed citations (citations by other indexed papers that have themselves been cited), including 84 papers in Health, Toxicology and Mutagenesis, 70 papers in Water Science and Technology and 50 papers in Infectious Diseases. Recurrent topics in Charles N. Haas's work include Water Treatment and Disinfection (56 papers), Fecal contamination and water quality (49 papers) and Viral gastroenteritis research and epidemiology (24 papers). Charles N. Haas is often cited by papers focused on Water Treatment and Disinfection (56 papers), Fecal contamination and water quality (49 papers) and Viral gastroenteritis research and epidemiology (24 papers). Charles N. Haas collaborates with scholars based in United States, Australia and Canada. Charles N. Haas's co-authors include Joan B. Rose, Charles P. Gerba, Stig Regli, Kerry A. Hamilton, Joseph G. Jacangelo, Peter Teunis, Jeanette A. Thurston‐Enriquez, Timothy A. Bartrand, Mark H. Weir and Thomas W. Armstrong and has published in prestigious journals such as SHILAP Revista de lepidopterología, Environmental Science & Technology and PLoS ONE.

In The Last Decade

Charles N. Haas

265 papers receiving 8.9k citations

Hit Papers

align trajectories sort by overperformance

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.

Quantitative Microbial Risk Assessment

2014 556 citations Charles N. Haas, Joan B. Rose et al. profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Charles N. Haas United States	52	2.9k	2.7k	2.5k	1.3k	1.2k	278	9.7k
Mark D. Sobsey United States	65	4.2k 1.5×	5.6k 2.1×	1.6k 0.6×	719 0.5×	2.2k 1.9×	284	13.5k
Joan B. Rose United States	73	6.2k 2.2×	6.2k 2.3×	2.7k 1.1×	1.6k 1.2×	2.5k 2.1×	296	17.9k
Gertjan Medema Netherlands	44	2.6k 0.9×	2.7k 1.0×	1.9k 0.8×	742 0.6×	731 0.6×	169	8.2k
Ana Maria de Roda Husman Netherlands	56	1.7k 0.6×	4.0k 1.5×	904 0.4×	867 0.7×	758 0.6×	172	10.1k
Paul Hunter United Kingdom	65	1.8k 0.6×	5.8k 2.2×	1.5k 0.6×	1.4k 1.1×	3.5k 2.9×	309	17.2k
Alexandria B. Boehm United States	68	5.2k 1.8×	3.3k 1.2×	1.7k 0.7×	605 0.5×	1.6k 1.3×	286	14.2k
Nicholas J. Ashbolt Australia	57	5.1k 1.8×	1.7k 0.6×	3.2k 1.3×	2.4k 1.8×	1.8k 1.5×	267	12.7k
Rebecca L. Calderon United States	31	2.0k 0.7×	2.5k 0.9×	1.6k 0.6×	585 0.4×	1.1k 0.9×	68	7.0k
Mark W. LeChevallier United States	58	3.7k 1.3×	1.3k 0.5×	5.2k 2.1×	2.1k 1.6×	720 0.6×	164	10.7k
Peter Teunis Netherlands	49	1.4k 0.5×	3.6k 1.3×	538 0.2×	492 0.4×	936 0.8×	165	8.1k

Countries citing papers authored by Charles N. Haas

Since Specialization

Citations

This map shows the geographic impact of Charles N. Haas'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 Charles N. Haas with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Charles N. Haas more than expected).

Fields of papers citing papers by Charles N. Haas

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Charles N. Haas. 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 Charles N. Haas. The network helps show where Charles N. Haas may publish in the future.

Co-authorship network of co-authors of Charles N. Haas

This figure shows the co-authorship network connecting the top 25 collaborators of Charles N. Haas. A scholar is included among the top collaborators of Charles N. Haas 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 Charles N. Haas. Charles N. Haas 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

Haas, Charles N., et al.. (2025). Inactivating airborne pathogens indoors with 222-nm far-UVC systems: Insights from a CFD-based analysis and a predictive performance model. Building and Environment. 283. 113336–113336.

Masters, Sheldon, et al.. (2021). Influence of Hot Water Temperature and Use Patterns on Microbial Water Quality in Building Plumbing Systems. Environmental Engineering Science. 39(4). 309–319. 14 indexed citations

Wymelenberg, Kevin Van Den, et al.. (2021). A Quantitative Risk Estimation Platform for Indoor Aerosol Transmission of COVID‐19. Risk Analysis. 42(9). 2075–2088. 19 indexed citations

Oerther, Daniel B., David A. Chin, Veera Gnaneswar Gude, et al.. (2021). The Academy, the Association, and the Society Advancing Environmental Engineering Training and Credentialing. Environmental Engineering Science. 38(10). 923–926. 6 indexed citations

Haas, Charles N., Aaron Bivins, Warish Ahmed, Kerry A. Hamilton, & Stuart J. Khan. (2021). Discussion on “Potential discharge, attenuation and exposure risk of SARS-CoV-2 in natural water bodies receiving treated wastewater”. npj Clean Water. 4(1). 2 indexed citations

Haas, Charles N.. (2020). Coronavirus and Environmental Engineering Science. Environmental Engineering Science. 37(4). 233–234. 12 indexed citations

Masters, Sheldon, Kerry A. Hamilton, Charles N. Haas, et al.. (2020). Full factorial study of pipe characteristics, stagnation times, and water quality. AWWA Water Science. 2(5). 18 indexed citations

Hamilton, Kerry A., W. J. Johnson, Patrick K. Jjemba, et al.. (2017). Health risks from exposure to Legionella in reclaimed water aerosols: Toilet flushing, spray irrigation, and cooling towers. Water Research. 134. 261–279. 108 indexed citations

Haas, Charles N., Joan B. Rose, & Charles P. Gerba. (2014). Quantitative Microbial Risk Assessment. 556 indexed citations breakdown →

10.

Roser, David J., Ben van den Akker, Samuel Boase, et al.. (2013). Pseudomonas aeruginosadose response and bathing water infection. Epidemiology and Infection. 142(3). 449–462. 27 indexed citations

11.

Kitajima, Masaaki, et al.. (2011). Dose-response time modelling for highly pathogenic avian influenza A (H5N1) virus infection. Letters in Applied Microbiology. 53(4). 438–444. 11 indexed citations

12.

Bartrand, Timothy A., Mark H. Weir, & Charles N. Haas. (2007). Advancing the Quality of Drinking Water: Expert Workshop to Formulate a Research Agenda. Environmental Engineering Science. 24(7). 863–872. 3 indexed citations

13.

Santoro, Domenico, Timothy A. Bartrand, Bakhtier Farouk, et al.. (2005). Use of CFD for Wastewater Disinfection Process Analysis: E.coli Inactivation with Peroxyacetic Acid (PAA). International Journal of Chemical Reactor Engineering. 3(1). 10 indexed citations

14.

Li, Lijie, et al.. (2005). Validation of Batch Disinfection Kinetics of Escherichia coli Inactivation by Monochloramine in a Continuous Flow System. Environmental Engineering Science. 22(5). 567–577. 1 indexed citations

15.

Bartrand, Timothy A., Bakhtier Farouk, & Charles N. Haas. (2005). Mixing In A Gas/liquid FlowCountercurrent Bubble Column. WIT transactions on engineering sciences. 50.

16.

Krewski, Daniel, John Balbus, David Butler-Jones, et al.. (2002). MANAGING HEALTH RISKS FROM DRINKING WATER--A REPORT TO THE WALKERTON INQUIRY. Journal of Toxicology and Environmental Health. 65(21). 1635–1823. 28 indexed citations

17.

Regli, Stig, Joan B. Rose, Charles N. Haas, & Charles P. Gerba. (1991). Modeling the Risk From Giardia and Viruses in Drinking Water. American Water Works Association. 83(11). 76–84. 297 indexed citations

18.

Rose, Joan B., Charles N. Haas, & Stig Regli. (1991). Risk assessment and control of waterborne giardiasis.. American Journal of Public Health. 81(6). 709–713. 201 indexed citations

19.

Haas, Charles N., et al.. (1985). Validation of the Hazard Ranking System for the Assessment of Feedstock Frequencies in Superfund Site Contaminants. Hazardous Waste and Hazardous Materials. 2(4). 535–543. 1 indexed citations

20.

Haas, Charles N. & Sankaram B. Karra. (1984). Kinetics of wastewater chlorine demand exertion. 56(2). 170–173. 74 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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