Author
Prashant Kumar
Other affiliations: Southeast University, Dr. B. R. Ambedkar National Institute of Technology Jalandhar, Trinity College, Dublin ...read more
Bio: Prashant Kumar is an academic researcher from University of Surrey. The author has contributed to research in topics: Air quality index & Medicine. The author has an hindex of 54, co-authored 363 publications receiving 11561 citations. Previous affiliations of Prashant Kumar include Southeast University & Dr. B. R. Ambedkar National Institute of Technology Jalandhar.
Papers published on a yearly basis
Papers
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TL;DR: It is shown that erroneous data can be detected in a fully automated way, and that point and contextual outlier detection methodologies can be applied to low-cost air pollution data and yield meaningful results.
Abstract: Air pollution is a major environmental health problem around the world, which needs to be monitored. In recent years, a new generation of low-cost air pollution sensors has emerged. Poor or unknown data quality, resulting from the intrinsic properties of the sensor as well as the lack of a consensus on data processing methodologies for these sensors, has, among other factors, prevented widespread adoption of these sensors. To contribute to the creation of this consensus, we reviewed the available methodologies for quality control, outlier detection and gap filling and applied two outlier detection methodologies and five gap filling methodologies to a case study (consisting of an 11-month long air quality data set from a low-cost sensor). We showed that erroneous data can be detected in a fully automated way, and that point and contextual outlier detection methodologies can be applied to low-cost air pollution data and yield meaningful results. The linear interpolation showed the best performance for gap filling for low-cost air pollution sensors. In conclusion, data cleaning procedures are important, and the presented methods can form part of a generalised data processing methodology for low-cost air pollution sensors.
41 citations
TL;DR: Assessment of the performance of LCS against industry-grade instruments and development of calibration models for LCS indicates that SVR can be considered as a promising approach for LCS calibration.
41 citations
TL;DR: In this article, the authors examined long-term measurements of major criteria pollutants concentrations in an urban station in South-Eastern Mediterranean, in Nicosia- Cyprus, which is susceptible both to transboundary air pollution transport from Sahara-dust events as well as to evaporative transport of sea-sprays.
41 citations
Trinity College, Dublin1, University of Surrey2, University of São Paulo3, Addis Ababa University4, University of Sulaymaniyah5, Southeast University6, American University in Cairo7, University of Dhaka8, Indian Institute of Technology Delhi9, Muhimbili University of Health and Allied Sciences10, National University of Colombia11, Guangzhou University12, Queensland University of Technology13, University of Malawi14, Indian Institute of Technology Madras15, Stockholm Environment Institute16
TL;DR: It was concluded that car-users in the least affluent cities experienced disproportionately higher in-car PM2.5 exposures, indicating filter effectiveness in removing coarse particles and a need for filters that limit the ingress of fine particles.
41 citations
TL;DR: In this paper, the potential impact of particle number concentrations derived from biofuel vehicles on existing regulatory concerns over atmospheric nanoparticles was discussed, and the potential effect of the particle number concentration derived from fuel-powered vehicles on the regulatory concerns was discussed.
40 citations
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Journal Article•
TL;DR: In this article, the authors present a document, redatto, voted and pubblicato by the Ipcc -Comitato intergovernativo sui cambiamenti climatici - illustra la sintesi delle ricerche svolte su questo tema rilevante.
Abstract: Cause, conseguenze e strategie di mitigazione Proponiamo il primo di una serie di articoli in cui affronteremo l’attuale problema dei mutamenti climatici. Presentiamo il documento redatto, votato e pubblicato dall’Ipcc - Comitato intergovernativo sui cambiamenti climatici - che illustra la sintesi delle ricerche svolte su questo tema rilevante.
4,187 citations
4,069 citations
Turku University Hospital1, National University of Ireland, Galway2, University of Catania3, University of Naples Federico II4, University of Paris5, Bispebjerg Hospital6, University of Sheffield7, University of Cambridge8, Stavanger University Hospital9, Oslo University Hospital10, Hospital Clínico San Carlos11, Mayo Clinic12, University of Western Brittany13, Rabin Medical Center14, Slovak Medical University15, Saarland University16, University of Barcelona17, University of Brescia18, University of Bern19, University of Erlangen-Nuremberg20, Leiden University Medical Center21
TL;DR: In this article, the authors present guidelines for the management of patients with coronary artery disease (CAD), which is a pathological process characterized by atherosclerotic plaque accumulation in the epicardial arteries.
Abstract: Coronary artery disease (CAD) is a pathological process characterized by atherosclerotic plaque accumulation in the epicardial arteries, whether obstructive or non-obstructive. This process can be modified by lifestyle adjustments, pharmacological therapies, and invasive interventions designed to achieve disease stabilization or regression. The disease can have long, stable periods but can also become unstable at any time, typically due to an acute atherothrombotic event caused by plaque rupture or erosion. However, the disease is chronic, most often progressive, and hence serious, even in clinically apparently silent periods. The dynamic nature of the CAD process results in various clinical presentations, which can be conveniently categorized as either acute coronary syndromes (ACS) or chronic coronary syndromes (CCS). The Guidelines presented here refer to the management of patients with CCS. The natural history of CCS is illustrated in Figure 1.
3,448 citations
01 Jan 2015
TL;DR: The work of the IPCC Working Group III 5th Assessment report as mentioned in this paper is a comprehensive, objective and policy neutral assessment of the current scientific knowledge on mitigating climate change, which has been extensively reviewed by experts and governments to ensure quality and comprehensiveness.
Abstract: The talk with present the key results of the IPCC Working Group III 5th assessment report. Concluding four years of intense scientific collaboration by hundreds of authors from around the world, the report responds to the request of the world's governments for a comprehensive, objective and policy neutral assessment of the current scientific knowledge on mitigating climate change. The report has been extensively reviewed by experts and governments to ensure quality and comprehensiveness.
3,224 citations