Karl Ropkins

4.1k total citations · 1 hit paper
60 papers, 3.0k citations indexed

About

Karl Ropkins is a scholar working on Automotive Engineering, Health, Toxicology and Mutagenesis and Environmental Engineering. According to data from OpenAlex, Karl Ropkins has authored 60 papers receiving a total of 3.0k indexed citations (citations by other indexed papers that have themselves been cited), including 39 papers in Automotive Engineering, 32 papers in Health, Toxicology and Mutagenesis and 19 papers in Environmental Engineering. Recurrent topics in Karl Ropkins's work include Vehicle emissions and performance (39 papers), Air Quality and Health Impacts (32 papers) and Air Quality Monitoring and Forecasting (19 papers). Karl Ropkins is often cited by papers focused on Vehicle emissions and performance (39 papers), Air Quality and Health Impacts (32 papers) and Air Quality Monitoring and Forecasting (19 papers). Karl Ropkins collaborates with scholars based in United Kingdom, China and United States. Karl Ropkins's co-authors include David C. Carslaw, James Tate, Margaret Bell, Angus J. Beck, Hu Li, Gordon E. Andrews, Sean Beevers, Basil Daham, Said Munir and Francis D. Pope and has published in prestigious journals such as Environmental Science & Technology, The Science of The Total Environment and Trends in Food Science & Technology.

In The Last Decade

Karl Ropkins

60 papers receiving 2.9k 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.

openair — An R package for air quality data analysis

2011 1.5k citations David C. Carslaw, Karl Ropkins Environmental Modelling & Software profile →

Peers

Countries citing papers authored by Karl Ropkins

Since Specialization

Citations

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

Fields of papers citing papers by Karl Ropkins

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Karl Ropkins

This figure shows the co-authorship network connecting the top 25 collaborators of Karl Ropkins. A scholar is included among the top collaborators of Karl Ropkins 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 Karl Ropkins. Karl Ropkins 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

#	Work	Indexed citations
1	Particle Number and Size Distributions (PNSD) from a Hybrid Electric Vehicle (HEV) over Laboratory and Real Driving Emission Tests 2022 ·Atmosphere ·(unknown), Hu Li, Xin Wang, Karl Ropkins, Alison S. Tomlin, C D Bannister, (unknown)	2
2	Measuring the impact of air quality related interventions 2022 ·Environmental Science Atmospheres ·Karl Ropkins, James Tate, (unknown), Tony Clark	1
3	Detecting high emitting vehicle subsets using emission remote sensing systems 2022 ·The Science of The Total Environment ·Omid Ghaffarpasand, Karl Ropkins, David C. S. Beddows, Francis D. Pope	16
4	Negative-Binomial and quasi-poisson regressions between COVID-19, mobility and environment in São Paulo, Brazil 2021 ·Environmental Research ·Sérgio Ibarra-Espinosa, Edmílson Dias de Freitas, Karl Ropkins, Francesca Dominici, Amanda Rehbein	14
5	Real-world assessment of vehicle air pollutant emissions subset by vehicle type, fuel and EURO class: New findings from the recent UK EDAR field campaigns, and implications for emissions restricted zones 2020 ·The Science of The Total Environment ·Omid Ghaffarpasand, David C. S. Beddows, Karl Ropkins, Francis D. Pope	54
6	Early observations on the impact of the COVID-19 lockdown on air quality trends across the UK 2020 ·The Science of The Total Environment ·Karl Ropkins, James Tate	96
7	Generating traffic flow and speed regional model data using internet GPS vehicle records 2019 ·MethodsX ·Sérgio Ibarra-Espinosa, Rita Yuri Ynoue, Mariana Giannotti, Karl Ropkins, Edmílson Dias de Freitas	13
8	Evaluation of EDAR vehicle emissions remote sensing technology 2017 ·The Science of The Total Environment ·Karl Ropkins, (unknown), Francis D. Pope, David C. Green, (unknown), (unknown), Gary W. Fuller, Hu Li, (unknown), Leigh R. Crilley, Louisa J. Kramer, William J. Bloss, (unknown)	44
9	A Comparison of Tailpipe Gaseous Emissions for RDE and WLTC Using SI Passenger Cars 2017 ·SAE technical papers on CD-ROM/SAE technical paper series ·(unknown), Hu Li, Xin Wang, (unknown), Yunshan Ge, (unknown), Karl Ropkins	20
10	Tools for the Analysis of Air Pollution Data 2015 ·David C. Carslaw, Karl Ropkins	4
11	Quantifying temporal trends in ground level ozone concentration in the UK 2013 ·The Science of The Total Environment ·Said Munir, Haibo Chen, Karl Ropkins	35
12	Methodology for fitting and updating predictive accident models with trend 2013 ·Accident Analysis & Prevention ·Richard D. Connors, Mike Maher, (unknown), Linda Mountain, Karl Ropkins	17
13	Updating outdated predictive accident models 2013 ·Accident Analysis & Prevention ·(unknown), Linda Mountain, Richard D. Connors, Mike Maher, Karl Ropkins	17
14	openair — An R package for air quality data analysis breakdown → 2011 ·Environmental Modelling & Software ·David C. Carslaw, Karl Ropkins	1483
15	Non-parametric nature of ground-level ozone and its dependence on nitrogen oxides (NO_x): a view point of vehicular emissions 2011 ·WIT transactions on ecology and the environment ·Said Munir, (unknown), Karl Ropkins	7
16	Real-World Vehicle Exhaust Emissions Monitoring: Review and Critical Discussion 2009 ·Critical Reviews in Environmental Science and Technology ·Karl Ropkins, (unknown), Hu Li, Basil Daham, James Tate, Margaret Bell, Gordon E. Andrews	85
17	Impact of Driving Cycles on Greenhouse Gas Emissions and Fuel Economy for SI Car Real World Driving 2008 ·SAE international journal of fuels and lubricants ·Hu Li, Gordon E. Andrews, (unknown), Basil Daham, Karl Ropkins, Margaret Bell, James Tate	13
18	Comparisons of the Exhaust Emissions for Different Generations of SI Cars under Real World Urban Driving Conditions 2008 ·SAE technical papers on CD-ROM/SAE technical paper series ·Hu Li, Gordon E. Andrews, (unknown), Basil Daham, Karl Ropkins, Margaret Bell, James Tate	27
19	Real-world comparison of probe vehicle emissions and fuel consumption using diesel and 5% biodiesel (B5) blend 2007 ·The Science of The Total Environment ·Karl Ropkins, Robert D. Quinn, (unknown), Hu Li, Basil Daham, James Tate, Margaret Bell, Gordon E. Andrews	29
20	Application of Hazard Analysis Critical Control Points (HACCP) to Organic Chemical Contaminants in Food 2002 ·Critical Reviews in Food Science and Nutrition ·Karl Ropkins, Angus J. Beck	12

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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