H. Knöppel

869 total citations
24 papers, 651 citations indexed

About

H. Knöppel is a scholar working on Health, Toxicology and Mutagenesis, Biomedical Engineering and Environmental Engineering. According to data from OpenAlex, H. Knöppel has authored 24 papers receiving a total of 651 indexed citations (citations by other indexed papers that have themselves been cited), including 13 papers in Health, Toxicology and Mutagenesis, 7 papers in Biomedical Engineering and 5 papers in Environmental Engineering. Recurrent topics in H. Knöppel's work include Indoor Air Quality and Microbial Exposure (11 papers), Air Quality and Health Impacts (7 papers) and Air Quality Monitoring and Forecasting (5 papers). H. Knöppel is often cited by papers focused on Indoor Air Quality and Microbial Exposure (11 papers), Air Quality and Health Impacts (7 papers) and Air Quality Monitoring and Forecasting (5 papers). H. Knöppel collaborates with scholars based in Italy, Germany and Qatar. H. Knöppel's co-authors include H. Schauenburg, H. Vissers, M. de Bortoli, H. D. Beckey, Peder Wolkoff, Tunga Salthammer, Nino Küenzli, Klea Katsouyanni, Otto Hänninen and Erik Lebret and has published in prestigious journals such as Environmental Science & Technology, Annals of the New York Academy of Sciences and Atmospheric Environment.

In The Last Decade

H. Knöppel

23 papers receiving 578 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
H. Knöppel Italy 13 427 157 134 111 98 24 651
Robert W. Coutant United States 10 261 0.6× 98 0.6× 72 0.5× 37 0.3× 31 0.3× 20 428
Karen D. Oliver United States 18 351 0.8× 232 1.5× 230 1.7× 57 0.5× 87 0.9× 42 726
M. de Bortoli Italy 10 237 0.6× 91 0.6× 79 0.6× 86 0.8× 33 0.3× 23 377
E. Jermann Germany 13 503 1.2× 72 0.5× 125 0.9× 38 0.3× 51 0.5× 27 670
Cecilia C. Chan Canada 8 442 1.0× 96 0.6× 62 0.5× 75 0.7× 28 0.3× 10 543
Sabine Crunaire France 9 256 0.6× 337 2.1× 151 1.1× 45 0.4× 75 0.8× 18 615
Gary F. Evans United States 10 400 0.9× 178 1.1× 53 0.4× 27 0.2× 29 0.3× 14 545
C.K. Wilkins Denmark 7 341 0.8× 75 0.5× 125 0.9× 97 0.9× 15 0.2× 12 463
Matti Vartiainen Finland 9 405 0.9× 139 0.9× 26 0.2× 34 0.3× 31 0.3× 11 496
Enric Rovira Spain 7 423 1.0× 131 0.8× 58 0.4× 40 0.4× 24 0.2× 9 580

Countries citing papers authored by H. Knöppel

Since Specialization
Citations

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

Fields of papers citing papers by H. Knöppel

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by H. Knöppel. 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 H. Knöppel. The network helps show where H. Knöppel may publish in the future.

Co-authorship network of co-authors of H. Knöppel

This figure shows the co-authorship network connecting the top 25 collaborators of H. Knöppel. A scholar is included among the top collaborators of H. Knöppel 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 H. Knöppel. H. Knöppel is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Knöppel, H., et al.. (2000). Molecular parameters for characterising the sink effect. 2 indexed citations
2.
Bluyssen, Philomena M., H. Knöppel, Lars Gunnarsen, et al.. (1999). Sensory evaluation of indoor air quality: European collaborative action. Indoor air quality and its impact on man. Environment and quality of life. Report no. 20. VBN Forskningsportal (Aalborg Universitet). 2 indexed citations
3.
Salthammer, Tunga, et al.. (1999). Interaction of volatile organic compounds with indoor materials—a small-scale screening method. Atmospheric Environment. 33(15). 2395–2401. 53 indexed citations
4.
5.
Schauenburg, H., et al.. (1998). A New Device for the Simulation of Indoor Air Pollution Sources. Environmental Science & Technology. 32(12). 1861–1863. 3 indexed citations
6.
Jantunen, Matti, Otto Hänninen, Klea Katsouyanni, et al.. (1997). Air Pollution Exposure in European Cities: The "Expolis" Study.. Joint Research Centre (European Commission). 8. 495–518. 145 indexed citations
7.
Bortoli, M. de, et al.. (1993). Adsorption Of Selected Volatile Organic Compounds On A Carpet, A Wall Coating, And A Gypsum Board In A Test Chamber. Indoor Air. 3(4). 276–282. 63 indexed citations
8.
Knöppel, H.. (1992). Sampling and Analytical Issues Pertaining to the Characterization of Indoor Source Emissions. Annals of the New York Academy of Sciences. 641(1). 112–124. 2 indexed citations
9.
Bortoli, M. de, et al.. (1992). Comparison Of Tenax And Carbotrap For VOC Sampling In Indoor Air. Indoor Air. 2(4). 216–224. 27 indexed citations
10.
11.
Bortoli, M. de, et al.. (1991). Small Chamber Tests and Headspace Analysis of Volatile Organic Compounds Emitted from Household Products. Indoor Air. 1(1). 13–21. 31 indexed citations
12.
Knöppel, H. & H. Schauenburg. (1989). Screening of household products for the emission of volatile organic compounds. Environment International. 15(1-6). 413–418. 49 indexed citations
13.
Knöppel, H.. (1987). Chairman's summary, session V. Atmospheric Environment (1967). 21(2). 439–442. 1 indexed citations
14.
Bortoli, M. de, et al.. (1986). Concentrations of selected organic pollutants in indoor and outdoor air in Northern Italy. Environment International. 12(1-4). 343–350. 59 indexed citations
15.
Knöppel, H., et al.. (1983). Reproducibility of temperature-programmed gas chromatographic retention indices with non-polar glass capillary columns. Journal of Chromatography A. 279. 483–492. 17 indexed citations
16.
Versino, B., et al.. (1976). Organic micropollutants in air and water. Journal of Chromatography A. 122. 373–388. 39 indexed citations
17.
18.
Knöppel, H.. (1970). Emitter temperature as a parameter in field ion mass spectrometry. International Journal of Mass Spectrometry and Ion Physics. 4(2). 97–111. 11 indexed citations
19.
Beckey, H. D., et al.. (1966). Über die Feldstärkeabhängigkeit der Winkelverteilung feldemittierter Elektronen und Ionen. Zeitschrift für Naturforschung A. 21(1-2). 141–152. 8 indexed citations
20.
Beckey, H. D. & H. Knöppel. (1966). Zur Kinetik des monomolekularen Zerfalls organischer Ionen in hohen elektrischen Feldern. Zeitschrift für Naturforschung A. 21(11). 1920–1930. 28 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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