Prashant Kumar

Prashant Kumar
University of Surrey · Global Centre for Clean Air Research (GCARE), Department of Civil and Environmental Engineering

PhD (Cantab), MTech (IITD), BEng (IEI), Diploma (Civ Eng)
Associate Dean (Int); Professor/Chair in Air Quality & Health; Founding Director, GCARE; Adjunct Prof, TCD Ireland

About

365
Publications
133,568
Reads
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12,314
Citations
Introduction
Associate Dean (Int), Professor/Chair in Air Quality & Health, founding Director, GCARE, Uni of Surrey; Adjunct Professor, Trinity College Dublin; Guest Prof Southeast Univ. He researches urban air pollution, sources, dispersion and exposure assessment; ~300 journal articles, >15,000 citations, H-index61 & i10-index222. He serves editorial board of several journals, reviewer for >dozen funding agencies, advises local/international bodies; >£10M research funding from UKRI & international bodies.
Additional affiliations
March 2018 - March 2023
Trinity College Dublin
Position
  • Professor (Associate)
Description
  • Also an Adjunct Professor at the TCD Ireland
April 2017 - present
University of Surrey
Position
  • Managing Director
Description
  • Global Centre for Clean Air Research (GCARE)
April 2017 - present
University of Surrey
Position
  • Chair
Description
  • Global Centre for Clean Air Research (GCARE)
Education
September 2009 - September 2011
University of Surrey, UK
Field of study
  • Teaching and Research in Higher Education
October 2005 - September 2008
University of Cambridge
Field of study
  • Environmental Engineering
June 2002 - July 2005
Indian Institute of Technology, Delhi, India
Field of study
  • Environmental Engineering and Mangement

Publications

Publications (365)
Article
The air quality of a city can be assessed by applying a computational modelling approach. However, one of the most critical issues faced while running air quality models is based on the meteorological model setup, which can significantly affect simulations over a coastal urban area with complex terrain. Thus, this study evaluates the performance of...
Article
Full-text available
Several research studies have ranked indoor pollution among the top environmental risks to public health in recent years. Good indoor air quality is an essential component of a healthy indoor environment and significantly affects human health and well-being. Poor air quality in such environments may cause respiratory disease for millions of pupils...
Article
Full-text available
Air pollutants influence the morphological, physiological, and biochemical status of plants, and their impacts vary substantially among different species and cultivars. Current review synthesises published literature on the assessment of air pollution impacts on vegetation, with a specific focus on chronicling and summarizing scientific methods tha...
Article
In UK urban areas, due to ease of accessibility and convenience, many schools are located close to main busy roads. This often results in pollution hotspots around schools due to on-road vehicular pollutant emissions, especially during drop-off and pick-up times of students to and from schools. As well as being exposed to air pollutants in the scho...
Conference Paper
This study aims to evaluate the performance of different regression models on predicting and forecasting indoor air quality (IAQ) inside smart homes, where IAQ is controlled by low-cost sensors (LCSs). To do this, the LCSs first have to be evaluated for their performance, e.g. inside the Envilution ® Chamber (Omidvarborna et al., 2020), and later a...
Thesis
Air pollution causes 65,000 premature deaths across the Middle East and North Africa every year, where 99% of the population is exposed to pollution that exceeds World Health Organization standards. Nevertheless, studies on the issue are limited. Greater Cairo is the largest megacity in the region where commuters are exposed to excessive pollution....
Conference Paper
Objectives: Design, develop, test and evaluate the performance of an integrated bespoke unit by employing a joint execution of smart sensing technology and IoT in smart homes. @AirPollSurrey @GuildfordLL @pk_shishodia Pollution Guardian
Article
Full-text available
There is ongoing and rapid advancement in approaches to modelling the fate of exhaled particles in different environments relevant to disease transmission. It is important that models are verified by comparison with each other using a common set of input parameters to ensure that model differences can be interpreted in terms of model physics rather...
Article
Full-text available
Heavy metals are persistent and bio-accumulative, and pose potential risk to human health and ecosystem. We reviewed the current state of heavy metal contamination, the ecotoxicological and human health risk of heavy metals reported in urban road dust from various cities in different continents (Asia, Europe, Africa, America, and Australia). We com...
Article
Full-text available
Regular use of incense and earthen lamps in temples leads to the release of particulate matter (PM), airborne flecks, and gaseous pollutants. Similarly, the cremation of dead bodies using timber and other accessories such as incense, organic chemicals containing carbon, and clothes generates air pollutants. It is currently unclear how much emission...
Article
Full-text available
Many dispersion models are available to simulate the mass concentrations of particulate matter in an urban environment. Still, fewer are capable of simulating the effect of green infrastructure (GI) on the airborne nanoparticles represented by total particle number concentration (ToNC). We developed an integrated approach capable of simulating the...
Article
Full-text available
The elderly population is relatively vulnerable to air pollution and thermal stress due to their low mobility and high prevalence of chronic disorders. Appropriate green infrastructure (GI) deployment can improve both the indoor and outdoor air quality and thermal environments of elderly care centres (ECCs), yet a systematic review on this topic ar...
Article
A link between outdoor pollution of particulate matter (PM) and the mortality from COVID-19 disease has been reported. The potential interaction of SARS-CoV2 emitted from an infected subject in the form of droplets or as an aerosol with PM[Formula: see text] (PM of 2.5 [Formula: see text]m or less in aerodynamic diameter) may modulate SARS-CoV2 rep...
Article
Full-text available
Poor ventilation and polluting cooking fuels in low-income homes cause high exposure, yet relevant global studies are limited. We assessed exposure to in-kitchen particulate matter (PM2.5 and PM10) employing similar instrumentation in 60 low-income homes across 12 cities: Dhaka (Bangladesh); Chennai (India); Nanjing (China); Medellín (Colombia); Sã...
Article
Full-text available
Nature-based Solutions function as an umbrella concept for ecosystem-based approaches that are an alternative to traditional engineering solutions for Disaster Risk Reduction. Their rising popularity is explained partly by their entailing additional benefits (so called co-benefits) for the environment, society, and economy. The few existing framewo...
Article
Full-text available
The importance of selecting appropriate air pollution monitoring sites in a city is vital for accurately reporting air quality, enhancing the quality of high-resolution modelling and informing policy to implement measures to deliver cleaner air in the urban environment. COVID-19 restrictions impacted air quality in urban centres worldwide as reduce...
Preprint
There is ongoing and rapid advancement in approaches to modelling the fate of exhaled particles in different environments relevant to disease transmission. It is important that models are verified by comparison with each other using a common set of input parameters to ensure that model differences can be interpreted in terms of model physics rather...
Article
During the Covid-19 pandemic and resulting lockdowns, road traffic volumes reduced significantly leading to reduced pollutant concentrations and noise levels. Noise and the air pollution data during the lockdown period and loosening of restrictions through five phases in 2021 are examined for a school site in the United Kingdom. Hourly and daily av...
Article
Young children are a vulnerable population cohort. They receive higher exposure to particulate matter than adults in outdoor roadside environments, necessitating research on an unexplored area of exposure to young children in electric bike trailers. We simulated the exposure profiles of an adult cyclist and young children sitting in a bike-trailer...
Article
Full-text available
Heatwaves pose a protracted health risk depending on its intensity and exposure time. Not only cities but countryside areas are also exposed to risk of summertime heat which has not been recently updated at the bucolic scale. This study aims to associate temperature and mortality and explore its temporal variation. A Poisson regression model combin...
Article
The arid and semi-arid regions are facing a huge brunt of fugitive Particulate Matter (fPM) pollution, usually ascribed to the natural dust generated at the regional level (>100 km). In this study, the contribution of locally generated fPM to air pollution and it's environmental risk were assessed at a typical dry-arid area in the Middle East (i.e....
Article
Full-text available
We designed a novel experimental set-up to pseudo-simultaneous measure size-segregated filtration efficiency (ηF), breathing resistance (ηP) and potential usage time (tB) for 11 types of face protective equipment (FPE; four respirators; three medical; and four handmade) in the submicron range. As expected, the highest ηF was exhibited by respirator...
Article
This paper examines and outlines the development of a novel inlet for an air handling unit (AHU) which controls PM concentration entering mechanically ventilated buildings. The aspiration efficiency reducer (AER), can reduce the ambient PM concentrations drawn into a building ventilation system. The AER device incorporates an array of cylindrical t...
Article
Full-text available
This paper presents an analysis of the effects of the COVID-19 pandemic on the air quality of the Metropolitan Region of São Paulo (MRSP). The effects of social distancing are still recent in the society; however, it was possible to observe patterns of environmental changes in places that had adhered transportation measures to combat the spread of...
Preprint
Poor air quality is associated with poor health. Little attention is given to the complex array of environmental exposures and air pollutants that impact mental health during the life course. By gathering expertise across the air pollution and mental health fields, we summarise the findings of a rapid scoping discussion, to identify knowledge gaps...
Article
Full-text available
Lockdown was imposed by the Indian government in the month of March 2020 as an early precaution to the COVID-19 pandemic which obstructed the socio-economic growth globally. The main aim of this study was to analyse the impact of lockdown (imposed in March and continued in April 2020) on the existing air quality in three megacities of India (Delhi,...
Article
Full-text available
The COVID-19 lockdown resulted in improved air quality in many cities across the world. With the objective of what could be the new learning from the COVID-19 pandemic and subsequent lockdowns for better air quality and human health, a critical synthesis of the available evidence concerning air pollution reduction, the population at risk and natura...
Article
Full-text available
The world's population is shifting to the cities, and consequently, cities worldwide are growing in number and in size. Cities are complex systems, making it extremely difficult to build and run cities in a way that all the elements of the system operate in harmony. Recently a concept of urbanome, the genome of the city was proposed to address this...
Presentation
Full-text available
A presentation at Future Technologies for Home Wellbeing Event by University of Surrey ESRC Impact Acceleration Account (November 2021).
Article
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Air pollution is a major cause of premature death in Greater Cairo, but studies on emission control are limited. We used local and international data to predict the impact of transport emission control measures on sector parameters including congestion. The International Vehicle Emission model accordingly estimated quantities of criteria, toxic and...
Article
This study aims to explain the role of local emission sources to PM2.5 mass concentration in a tropical coastal-urban area, highly influenced by industrial and urban emissions, located in the Southeast of Brazil. The Integrated Source Apportionment Method (ISAM) tool was coupled with the chemistry and transport Community Multiscale Air Quality (CMA...
Article
Full-text available
A series of experiments was undertaken on an intercity train carriage aimed at providing a “proof of concept” for three methods in improving our understanding of airflow behaviour and the accompanied dispersion of exhaled droplets. The methods used included the following: measuring CO2 concentrations as a proxy for exhaled breath, measuring the con...
Article
Full-text available
Built-up environments limit air pollution dispersion in street canyons and lead to complex trade-offs between green infrastructure (GI) usage and its potential to reduce near-road exposure. This study evaluated the effects of an evergreen hedge on the distribution of particulate matter (PM1, PM2.5, PM10), black carbon (BC) and particle number conce...
Article
Full-text available
This paper explores relationships between commuting times, job accessibility, and commuting satisfaction based on a large-scale survey applied in the Greater London Area (GLA), the municipality of São Paulo (MSP) and the Dutch Randstad (NLR). Potential accessibility to jobs is estimated under 3 different scenarios: reported actual commuting times (...
Article
Full-text available
The impact of traffic pollution on the health and safety of residents that live in roadside residential buildings has been a major concern for governments. This study investigated the spatial distributions of PM2.5 concentration due to road traffic emissions and put forward a spatial distribution model for the estimation of PM2.5 concentration (SDC...
Article
Full-text available
We examined the trade-offs between in-car aerosol concentrations, ventilation and respiratory infection transmission under three ventilation settings: windows open (WO); windows closed with air-conditioning on ambient air mode (WC-AA); and windows closed with air-conditioning on recirculation (WC-RC). Forty-five runs, covering a total of 324 km dis...
Article
This study estimates exposure and inhaled dose to air pollutants of children residing in a tropical coastal-urban area in Southeast Brazil. For that, twenty-one children filled their time-activities diaries and wore the passive samplers to monitor NO2. The personal exposure was also estimated using data provided by the combination of WRF-Urban/GEOS...
Article
Full-text available
There is a lack of clear guidance regarding the optimal configuration and plant composition of green infrastructure (GI) for improved air quality at local scale. This study aimed to co-develop (i.e. with feedback from end-users) a public engagement and decision support tool, to facilitate effective GI design and management for air pollution abateme...
Article
Full-text available
Modelling of ambient particle number concentrations (PNC) has been implemented in the Danish air quality modelling system DEHM/UBM/AirGIS and evaluated with long-term measurements. We implemented particle dynamical processes in the regional scale model DEHM using the M7 aerosol dynamics module (presented in the accompanying article by Frohn et al.,...
Article
Severe episodic air pollution blankets entire cities and regions and have a profound impact on humans and their activities. We compiled daily fine particle (PM 2.5) data from 100 cities in five continents, investigated the trends of number, frequency, and duration of pollution episodes, and compared these with the baseline trend in air pollution. W...
Presentation
Full-text available
Nature-based solutions (NBS) for climate change adaptation and natural hazard management are receiving much attention in Europe and across the world. It is now seen broadly as a valid measure to manage flood risk sustainably whilst providing significant multiple benefits. However, there is little information regarding its implementation and cost-ef...
Article
Full-text available
Green infrastructure (GI) is effective in reducing PM concentrations in near-road environments, but how such reductions in concentration compared with relative respiratory deposition doses (RDD) is rarely discussed. We quantified variations in RDD in the presence of three GI types (trees, hedges, and tree-hedge combinations), and compared them with...
Article
Full-text available
Car microenvironments significantly contribute to the daily pollution exposure of commuters, yet health and socioeconomic studies focused on in-car exposure are rare. This study aims to assess the relationship between air pollution levels and socioeconomic indicators (fuel prices, city-specific GDP, road density, the value of statistical life (VSL)...
Article
There is substantial evidence that air pollution exposure is associated with asthma prevalence that affects millions of people worldwide. Air pollutant exposure can be determined using dispersion models and refined with receptor models. Dispersion models offer the advantage of giving spatially distributed outdoor pollutants concentration while the...
Article
Full-text available
The increasing industrial activities, number of vehicles on road and population in large cities causes the contamination of air in urban environment, and eventually affect human health. Therefore, the aim of this study was to collect soil and dust samples from twelve roadside academic institutions in Dhaka City, Bangladesh. One of the twelve sites...
Article
The number of daily commuters in Greater Cairo has exceeded 15 million nevertheless personal exposure studies in transport microenvironments are limited. The aim of this study is to quantify PM2.5 exposure during peak hours in four transport modes of Greater Cairo - car (windows-open, windows-closed with recirculation and AC-on), microbus (windows-...
Article
Full-text available
This study aims to assess the physicochemical characteristics of the particulate matter ≤10 µm (PM 10 ) at both congested and non-congested areas of Lahore, the second-largest city of Pakistan. PM 10 samples from 10 urban sites in Lahore were analysed for source apportionment. The techniques of scanning electron microscopy/energy dispersive spectro...
Article
Full-text available
The transportation of ambient particulate matter (PM) from outdoor air into the inlet of a mechanical building ventilation system is poorly understood. No studies have examined the effect commonly used commercial air handling unit (AHU) inlet designs have upon the migration of PM from the ambient environment into the building ventilation system, an...
Chapter
Full-text available
Chapter 7 provides an overview of data types, sources and techniques for the generation of data to monitor and assess the impacts of NBS. An understanding of different types of data, their sources and use is core to the development of robust monitoring and evaluation plans.
Chapter
Full-text available
Selecting appropriate indicators of NBS performance and impact can be challenging, and is context-dependent. In this chapter, we present case studies from a variety of NBS demonstrations across Europe and Asia that illustrate the application of the NBS indicators and methods presented in Chapter 4 and thoroughly described in Evaluating the Impact o...
Article
Airborne transmissions of infectious disease (e.g. SARS-CoV-2) in indoor environments may induce serious threat to public health. Air purification devices are necessary to remove and/or inactivate airborne biological species from indoor air environment. Corona discharge in an electrostatic precipitator is capable of removing particulate matter and...
Conference Paper
Full-text available
Nature-based solutions are increasingly implemented to tackle disaster risk reduction and climate change adaptation. Their rising popularity over grey solutions is partially explained by their number of additional benefits (so called co-benefits) for the socio-ecological system (SES). Frameworks are available to monitor and assess co-benefits, howe...