Imperial College London

DrMohammedMead

Faculty of MedicineSchool of Public Health

Head of Air Quality Measurement
 
 
 
//

Contact

 

m.mead

 
 
//

Location

 

Sir Alexander Fleming BuildingSouth Kensington Campus

//

Summary

 

Publications

Publication Type
Year
to

43 results found

Mead MI, Bevilacqua M, Loiseaux C, Hallett SH, Jude S, Emmanouilidis C, Harris J, Leinster P, Mutnuri S, Tran TH, Williams Let al., 2022, Generalised network architectures for environmental sensing: Case studies for a digitally enabled environment, Array, Vol: 14

A digitally enabled environment is a setting which incorporates sensors coupled with reporting and analytics tools for understanding, observing or managing that environment. Large scale data collection and analysis are a part of the emerging digitally enabled approach for the characterisation and understanding of our environment. It is recognised as offering an effective methodology for addressing a range of complex and interrelated social, economic and environmental concerns. The development and construction of the approach requires advances in analytics control linked with a clear definition of the issues pertaining to the interaction between elements of these systems. This paper presents an analysis of selected issues in the field of analytics control. It also discusses areas of progress, and areas in need of further investigation as sensing networks evolve. Three case studies are described to illustrate these points. The first is a physical analytics test kit developed as a part of the “Reinvent the Toilet Challenge” (RTTC) for process control in a range of environments. The second case study is the Cranfield Urban Observatory that builds on elements of the RTTC and is designed to allow users to develop user interfaces to monitor, characterise and compare a variety of environmental and infrastructure systems plus behaviours (e.g., water distribution, power grids). The third is the Data and Analytics Facility for National Infrastructure, a cloud-based high-performance computing cluster, developed to receive, store and present such data to advanced analytical and visualisation tools.

Journal article

Khokhar MF, 2021, Countries of the Indo-Gangetic Plain must unite against air pollution, NATURE, Vol: 598, Pages: 415-415, ISSN: 0028-0836

Journal article

Alifa M, Bolster D, Mead MI, Latif MT, Crippa Pet al., 2020, The influence of meteorology and emissions on the spatio-temporal variability of PM10 in Malaysia, ATMOSPHERIC RESEARCH, Vol: 246, ISSN: 0169-8095

Journal article

Mohyeddin N, Abu Samah A, Chenoli SN, Ashfold MJ, Mead MI, Oram D, Latif MT, Sivaprasad P, Nor MFFMet al., 2020, The effects of synoptic and local meteorological condition on CO2, CH4, PM(10)and PM(2.5)at Bachok Marine Research Station (BMRS) in Peninsular Malaysia, METEOROLOGY AND ATMOSPHERIC PHYSICS, Vol: 132, Pages: 845-868, ISSN: 0177-7971

Journal article

Bruni Zani N, Lonati G, Mead M, Latif MT, Crippa Pet al., 2020, Long-term satellite-based estimates of air quality and premature mortality in Equatorial Asia through deep neural networks, ENVIRONMENTAL RESEARCH LETTERS, Vol: 15, ISSN: 1748-9326

Journal article

Bolas CG, Ferracci V, Robinson AD, Mead M, Nadzir MSM, Pyle JA, Jones RL, Harris NRPet al., 2020, iDirac: a field-portable instrument for long-term autonomous measurements of isoprene and selected VOCs, ATMOSPHERIC MEASUREMENT TECHNIQUES, Vol: 13, Pages: 821-838, ISSN: 1867-1381

Journal article

Shaw JT, Allen G, Pitt J, Mead MI, Purvis RM, Dunmore R, Wilde S, Shah A, Barker P, Bateson P, Bacak A, Lewis AC, Lowry D, Fisher R, Lanoiselle M, Ward RSet al., 2019, A baseline of atmospheric greenhouse gases for prospective UK shale gas sites, SCIENCE OF THE TOTAL ENVIRONMENT, Vol: 684, Pages: 1-13, ISSN: 0048-9697

Journal article

Allen G, Hollingsworth P, Kabbabe K, Pitt JR, Mead MI, Illingworth S, Roberts G, Bourn M, Shallcross DE, Percival CJet al., 2019, The development and trial of an unmanned aerial system for the measurement of methane flux from landfill and greenhouse gas emission hotspots, WASTE MANAGEMENT, Vol: 87, Pages: 883-892, ISSN: 0956-053X

Journal article

Farren NJ, Dunmore RE, Mead MI, Nadzir MSM, Abu Samah A, Phang S-M, Bandy BJ, Sturges WT, Hamilton JFet al., 2019, Chemical characterisation of water-soluble ions in atmospheric particulate matter on the east coast of Peninsular Malaysia, ATMOSPHERIC CHEMISTRY AND PHYSICS, Vol: 19, Pages: 1537-1553, ISSN: 1680-7316

Journal article

Popoola OAM, Carruthers D, Lad C, Bright VB, Mead M, Stettler MEJ, Saffell JR, Jons RLet al., 2018, Use of networks of low cost air quality sensors to quantify air quality in urban settings, Atmospheric Environment, Vol: 194, Pages: 58-70, ISSN: 1352-2310

Low cost sensors are becoming increasingly available for studying urban air quality. Here we show how such sensors, deployed as a network, provide unprecedented insights into the patterns of pollutant emissions, in this case at London Heathrow Airport (LHR). Measurements from the sensor network were used to unequivocally distinguish airport emissions from long range transport, and then to infer emission indices from the various airport activities. These were used to constrain an air quality model (ADMS-Airport), creating a powerful predictive tool for modelling pollutant concentrations. For nitrogen dioxide (NO2), the results show that the non-airport component is the dominant fraction (∼75%) of annual NO2 around the airport and that despite a predicted increase in airport related NO2 with an additional runway, improvements in road traffic fleet emissions are likely to more than offset this increase. This work focusses on London Heathrow Airport, but the sensor network approach we demonstrate has general applicability for a wide range of environmental monitoring studies and air pollution interventions.

Journal article

Mead MI, Castruccio S, Latif MT, Nadzir MSM, Dominick D, Thota A, Crippa Pet al., 2018, Impact of the 2015 wildfires on Malaysian air quality and exposure: a comparative study of observed and modeled data, ENVIRONMENTAL RESEARCH LETTERS, Vol: 13, ISSN: 1748-9326

Journal article

Nadzir MSM, Ashfold MJ, Khan MF, Robinson AD, Bolas C, Latif MT, Wallis BM, Mead MI, Hamid HHA, Harris NRP, Ramly ZTA, Goh TL, Liew JN, Ahamad F, Uning R, Abu Samah A, Maulud KN, Suparta W, Zainudin SK, Wahab MIA, Sahani M, Mueller M, Yeok FS, Rahman NA, Mujahid A, Morris KI, Dal Sasso Net al., 2018, Spatial-temporal variations in surface ozone over Ushuaia and the Antarctic region: observations from in situ measurements, satellite data, and global models, ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, Vol: 25, Pages: 2194-2210, ISSN: 0944-1344

Journal article

Oram DE, Ashfold MJ, Laube JC, Gooch LJ, Humphrey S, Sturges WT, Leedham-Elvidge E, Forster GL, Harris NRP, Mead MI, Abu Samah A, Phang SM, Ou-Yang C-F, Lin N-H, Wang J-L, Baker AK, Brenninkmeijer CAM, Sherry Det al., 2017, A growing threat to the ozone layer from short-lived anthropogenic chlorocarbons, ATMOSPHERIC CHEMISTRY AND PHYSICS, Vol: 17, Pages: 11929-11941, ISSN: 1680-7316

Journal article

Ashfold MJ, Latif MT, Samah AA, Mead MI, Harris NRPet al., 2017, Influence of Northeast Monsoon cold surges on air quality in Southeast Asia, ATMOSPHERIC ENVIRONMENT, Vol: 166, Pages: 498-509, ISSN: 1352-2310

Journal article

Jerrett M, Donaire-Gonzalez D, Popoola O, Jones R, Cohen RC, Almanza E, de Nazelle A, Mead I, Carrasco-Turigas G, Cole-Hunter T, Triguero-Mas M, Seto E, Nieuwenhuijsen Met al., 2017, Validating novel air pollution sensors to improve exposure estimates for epidemiological analyses and citizen science, Environmental Research, Vol: 158, Pages: 286-294, ISSN: 0013-9351

Low cost, personal air pollution sensors may reduce exposure measurement errors in epidemiological investigations and contribute to citizen science initiatives. Here we assess the validity of a low cost personal air pollution sensor. Study participants were drawn from two ongoing epidemiological projects in Barcelona, Spain. Participants repeatedly wore the pollution sensor − which measured carbon monoxide (CO), nitric oxide (NO), and nitrogen dioxide (NO2). We also compared personal sensor measurements to those from more expensive instruments. Our personal sensors had moderate to high correlations with government monitors with averaging times of 1-h and 30-min epochs (r ~ 0.38–0.8) for NO and CO, but had low to moderate correlations with NO2 (~0.04–0.67). Correlations between the personal sensors and more expensive research instruments were higher than with the government monitors. The sensors were able to detect high and low air pollution levels in agreement with expectations (e.g., high levels on or near busy roadways and lower levels in background residential areas and parks). Our findings suggest that the low cost, personal sensors have potential to reduce exposure measurement error in epidemiological studies and provide valid data for citizen science studies.

Journal article

Latif MT, Dominick D, Ahamad F, Ahamad NS, Khan MF, Juneng L, Xiang CJ, Nadzir MSM, Robinson AD, Ismail M, Mead MI, Harris NRPet al., 2016, Seasonal and long term variations of surface ozone concentrations in Malaysian Borneo, SCIENCE OF THE TOTAL ENVIRONMENT, Vol: 573, Pages: 494-504, ISSN: 0048-9697

Journal article

Popoola OAM, Stewart GB, Mead MI, Jones RLet al., 2016, Development of a baseline-temperature correction methodology for electrochemical sensors and its implications for long-term stability, ATMOSPHERIC ENVIRONMENT, Vol: 147, Pages: 330-343, ISSN: 1352-2310

Journal article

Dunmore RE, Hopkins JR, Lidster RT, Mead MI, Bandy BJ, Forster G, Oram DE, Sturges WT, Phang S-M, Abu Samah A, Hamilton JFet al., 2016, Development of a Combined Heart-Cut and Comprehensive Two-Dimensional Gas Chromatography System to Extend the Carbon Range of Volatile Organic Compounds Analysis in a Single Instrument, SEPARATIONS, Vol: 3

Journal article

Dominick D, Latif MT, Juneng L, Khan MF, Amil N, Mead MI, Nadzir MSM, Moi PS, Abu Samah A, Ashfold MJ, Sturges WT, Harris NRP, Robinson AD, Pyle JAet al., 2015, Characterisation of particle mass and number concentration on the east coast of the Malaysian Peninsula during the northeast monsoon, ATMOSPHERIC ENVIRONMENT, Vol: 117, Pages: 187-199, ISSN: 1352-2310

Journal article

Heimann I, Bright VB, McLeod MW, Mead MI, Popoola OAM, Stewart GB, Jones RLet al., 2015, Source attribution of air pollution by spatial scale separation using high spatial density networks of low cost air quality sensors, ATMOSPHERIC ENVIRONMENT, Vol: 113, Pages: 10-19, ISSN: 1352-2310

Journal article

Mueller MD, Hasenfratz D, SaUKh O, Bright V, Mead I, Meng K, Popoola O, Stewart G, Hueglin C, Jones Ret al., 2014, Statistical modelling of pollutant concentration in the urban environment at high spatial and temporal resolution by utilizing data from sensor networks, Pages: 374-378

We developed a statistical modelling approach for the generation of pollutant concentration maps at high spatio-temporal resolution (30 minutes, 10 m) focusing on the application in the urban environment. The statistical models rely on data from sensor networks and georeferenced information. We explore the potential of this modelling approach by using data sets originating from the OpenSense mobile sensor network in Zurich and the Cambridge air pollution sensor network.

Conference paper

Nadzir MSM, Phang SM, Abas MR, Rahman NA, Abu Samah A, Sturges WT, Oram DE, Mills GP, Leedham EC, Pyle JA, Harris NRP, Robinson AD, Ashfold MJ, Mead MI, Latif MT, Khan MF, Amiruddin AM, Banan N, Hanafiah MMet al., 2014, Bromocarbons in the tropical coastal and open ocean atmosphere during the 2009 Prime Expedition Scientific Cruise (PESC-09), ATMOSPHERIC CHEMISTRY AND PHYSICS, Vol: 14, Pages: 8137-8148, ISSN: 1680-7316

Journal article

Edmonds M, Sides IR, Swanson DA, Werner C, Martin RS, Mather TA, Herd RA, Jones RL, Mead MI, Sawyer G, Roberts TJ, Sutton AJ, Elias Tet al., 2013, Magma storage, transport and degassing during the 2008-10 summit eruption at Kilauea Volcano, Hawai'i, GEOCHIMICA ET COSMOCHIMICA ACTA, Vol: 123, Pages: 284-301, ISSN: 0016-7037

Journal article

Mead MI, Popoola OAM, Stewart GB, Landshoff P, Calleja M, Hayes M, Baldovi JJ, McLeod MW, Hodgson TF, Dicks J, Lewis A, Cohen J, Baron R, Saffell JR, Jones RLet al., 2013, The use of electrochemical sensors for monitoring urban air quality in low-cost, high-density networks, ATMOSPHERIC ENVIRONMENT, Vol: 70, Pages: 186-203, ISSN: 1352-2310

Journal article

Bennett M, Christie SM, Graham A, Garry KP, Velikov S, Poll DI, Smith MG, Mead MI, Popoola OAM, Stewart GB, Jones RLet al., 2013, Abatement of an Aircraft Exhaust Plume Using Aerodynamic Baffles, ENVIRONMENTAL SCIENCE & TECHNOLOGY, Vol: 47, Pages: 2346-2352, ISSN: 0013-936X

Journal article

Newman SM, Larar AM, Smith WL, Ptashnik IV, Jones RL, Mead MI, Revercomb H, Tobin DC, Taylor JK, Taylor JPet al., 2012, The Joint Airborne IASI Validation Experiment: An evaluation of instrument and algorithms, JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER, Vol: 113, Pages: 1372-1390, ISSN: 0022-4073

Journal article

Grieco G, Masiello G, Serio C, Jones RL, Mead MIet al., 2011, Infrared Atmospheric Sounding Interferometer correlation interferometry for the retrieval of atmospheric gases: the case of H2O and CO2, APPLIED OPTICS, Vol: 50, Pages: 4516-4528, ISSN: 1559-128X

Journal article

Gardiner T, Mead MI, Garcelon S, Robinson R, Swann N, Hansford GM, Woods PT, Jones RLet al., 2010, A lightweight near-infrared spectrometer for the detection of trace atmospheric species, REVIEW OF SCIENTIFIC INSTRUMENTS, Vol: 81, ISSN: 0034-6748

Journal article

Reeves CE, Formenti P, Afif C, Ancellet G, Attie J-L, Bechara J, Borbon A, Cairo F, Coe H, Crumeyrolle S, Fierli F, Flamant C, Gomes L, Hamburger T, Jambert C, Law KS, Mari C, Jones RL, Matsuki A, Mead MI, Methven J, Mills GP, Minikin A, Murphy JG, Nielsen JK, Oram DE, Parker DJ, Richter A, Schlager H, Schwarzenboeck A, Thouret Vet al., 2010, Chemical and aerosol characterisation of the troposphere over West Africa during the monsoon period as part of AMMA, ATMOSPHERIC CHEMISTRY AND PHYSICS, Vol: 10, Pages: 7575-7601, ISSN: 1680-7316

Journal article

This data is extracted from the Web of Science and reproduced under a licence from Thomson Reuters. You may not copy or re-distribute this data in whole or in part without the written consent of the Science business of Thomson Reuters.

Request URL: http://wlsprd.imperial.ac.uk:80/respub/WEB-INF/jsp/search-html.jsp Request URI: /respub/WEB-INF/jsp/search-html.jsp Query String: respub-action=search.html&id=01084570&limit=30&person=true