School of Chemistry

Search site

Daniel Stone

NERC Fellow/University Academic Fellow
Member of the Atmospheric and Planetary Chemistry group

Contact details

Room: 2.89
Tel: +44 (0)113 3436508
Email: D.Stone@leeds.ac.uk

Keywords

Atmospheric chemistry
Combustion chemistry
Biofuels
Criegee intermediates
Kinetics and product yields
Reaction mechanisms
Laser induced fluorescence spectroscopy
Quantum cascade laser infrared absorption spectroscopy
Modelling using the master chemical mechanism and global models

Photograph of Daniel Stone

Research interests

My research focuses on the study of oxidation processes in atmospheric and combustion chemistry. In particular, my interests lie in the chemistry of reactive species such as OH, HO2 and Criegee intermediates (R2COO) that control atmospheric composition and fuel combustion, requiring a combination of laboratory experiments, field measurements and numerical modelling.

Recent laboratory experiments to investigate the kinetics of the CH2OO Criegee intermediate have provided the first direct measurements of CH2OO reaction kinetics as a function of pressure, obtained by monitoring the HCHO reaction products by laser-induced fluorescence (LIF) spectroscopy (Stone et al., 2014). This work also have indicated significant yields of CH2OO following photolysis of CH2I2 in the presence of O2 under atmospheric conditions (Stone et al., 2013), with impacts on our understanding of oxidation chemistry in iodine-rich coastal regions.

Future work will involve the development of a quantum cascade laser (QCL) infrared absorption experiment to monitor Criegee intermediates directly under atmospheric conditions, and to monitor the production of SO3 in reactions of Criegee intermediates with SO2. These experiments will enable assessment of the atmospheric impacts of Criegee chemistry on production of sulfuric acid and sulfate aerosol, and thus on air quality and climate change.

I have also participated in several field campaigns to measure OH, HO2 and OH reactivity in the atmosphere, and was involved in the Clean air for London (ClearfLo) campaign to monitor atmospheric composition during the London 2012 Olympics. My investigation of nighttime aircraft measurements using numerical models of atmospheric chemistry has shown that nighttime oxidation chemistry over the UK is more important than previously expected, and indicates that models currently used to assess air quality and climate change will underestimate atmospheric oxidation rates (Stone et al., 2014). Analysis of data obtained over Borneo (Stone et al., 2011) and West Africa (Stone et al., 2010) has demonstrated significant problems with our understanding of isoprene oxidation chemistry, with important consequences for climate modelling.

Publications

Stone D, Whalley LK, Ingham T, Edwards PM, Cryer DR, Brumby CA, Seakins PW, Heard DE Measurement of OH reactivity by laser flash photolysis coupled with laser-induced fluorescence spectroscopy Atmospheric Measurement Techniques 9 2827-2844, 2016
DOI:10.5194/amt-9-2827-2016
View abstract

Stone D, Blitz M, Ingham T, Onel L, Medeiros DJ, Seakins PW An instrument to measure fast gas phase radical kinetics at high temperatures and pressures Review of Scientific Instruments 87 -, 2016
DOI:10.1063/1.4950906
View abstract

Lee JD, Whalley LK, Heard DE, Stone D, Dunmore RE, Hamilton JF, Young DE, Allan JD, Laufs S, Kleffmann J Detailed budget analysis of HONO in central London reveals a missing daytime source Atmospheric Chemistry and Physics 16 2747-2764, 2016
DOI:10.5194/acp-16-2747-2016
View abstract

Whalley LK, Stone D, Bandy B, Dunmore R, Hamilton JF, Hopkins J, Lee JD, Lewis AC, Heard DE Atmospheric OH reactivity in central London: Observations, model predictions and estimates of in situ ozone production Atmospheric Chemistry and Physics 16 2109-2122, 2016
DOI:10.5194/acp-16-2109-2016
View abstract

Walker HM, Stone D, Ingham T, Vaughan S, Cain M, Jones RL, Kennedy OJ, McLeod M, Ouyang B, Pyle J, Bauguitte S, Bandy B, Forster G, Evans MJ, Hamilton JF, Hopkins JR, Lee JD, Lewis AC, Lidster RT, Punjabi S, Morgan WT, Heard DE Night-time measurements of HO<inf>x</inf> during the RONOCO project and analysis of the sources of HO<inf>2</inf> Atmospheric Chemistry and Physics 15 8179-8200, 2015
DOI:10.5194/acp-15-8179-2015
View abstract

Bannan TJ, Booth AM, Bacak A, Muller JBA, Leather KE, Le Breton M, Jones B, Young D, Coe H, Allan J, Visser S, Slowik JG, Furger M, Prévôt ASH, Lee J, Dunmore RE, Hopkins JR, Hamilton JF, Lewis AC, Whalley LK, Sharp T, Stone D, Heard DE, Fleming ZL, Leigh R, Shallcross DE, Percival CJ The first UK measurements of nitryl chloride using a chemical ionization mass spectrometer in central London in the summer of 2012, and an investigation of the role of Cl atom oxidation Journal of Geophysical Research Atmospheres 120 5638-5657, 2015
DOI:10.1002/2014JD022629
View abstract

Whalley LK, Stone D, George IJ, Mertes S, Van Pinxteren D, Tilgner A, Herrmann H, Evans MJ, Heard DE The influence of clouds on radical concentrations: Observations and modelling studies of HOx during the Hill Cap Cloud Thuringia (HCCT) campaign in 2010 Atmospheric Chemistry and Physics 15 3289-3301, 2015
DOI:10.5194/acp-15-3289-2015
View abstract

Bohnenstengel SI, Belcher SE, Aiken A, Allan JD, Allen G, Bacak A, Bannan TJ, Barlow JF, Beddddows DCS, Blossss WJ, Booth AM, Chemel C, Coceal O, Di Marco CF, Dubey MK, Faloon KH, Flemiming ZL, Furger M, Gietl JK, Graves RR, Green DC, Grimmimmimmond CSB, Halios CH, Hamiamiamilton JF, Harrisison RM, Heal MR, Heard DE, Helfter C, Herndon SC, Holmes RE, Hopkins JR, Jones AM, Kelly FJ, Kotthaus S, Langford B, Lee JD, Leigh RJ, Lewisis AC, Lidsidsidster RT, Lopez-Hilfiker FD, McQuaidaid JB, Mohr C, Monks PS, Nemimitz E, Ng NL, Percival CJ, Prévôt ASH, Ricketts HMA, Sokhi R, Stone D, Thornton JA, Tremper AH, Valach AC, Vissississer S, Whalley LK, Williamsiamsiamsiams LR, Xu L, Young DE, Zotter P Meteorology, air quality, and health in London: The ClearfLo project Bulletin of the American Meteorological Society 96 779-804, 2015
DOI:10.1175/BAMS-D-12-00245.1
View abstract

Stone D, Evans MJ, Walker H, Ingham T, Vaughan S, Ouyang B, Kennedy OJ, McLeod MW, Jones RL, Hopkins J, Punjabi S, Lidster R, Hamilton JF, Lee JD, Lewis AC, Carpenter LJ, Forster G, Oram DE, Reeves CE, Bauguitte S, Morgan W, Coe H, Aruffo E, Dari-Salisburgo C, Giammaria F, Di Carlo P, Heard DE Radical chemistry at night: Comparisons between observed and modelled HOx, NO3 and N2O5 during the RONOCO project Atmospheric Chemistry and Physics 14 1299-1321, 2014
DOI:10.5194/acp-14-1299-2014
View abstract

Stone D, Blitz M, Daubney L, Howes NUM, Seakins P Kinetics of CH2OO reactions with SO2, NO2, NO, H2O and CH3CHO as a function of pressure Physical Chemistry Chemical Physics 16 1139-1149, 2014
DOI:10.1039/c3cp54391a
View abstract

Aruffo E, Di Carlo P, Dari-Salisburgo C, Biancofiore F, Giammaria F, Busilacchio M, Lee J, Moller S, Hopkins J, Punjabi S, Bauguitte S, O'Sullivan D, Percival C, Le Breton M, Muller J, Jones R, Forster G, Reeves C, Heard D, Walker H, Ingham T, Vaughan S, Stone D Aircraft observations of the lower troposphere above a megacity: Alkyl nitrate and ozone chemistry Atmospheric Environment 94 479-488, 2014
DOI:10.1016/j.atmosenv.2014.05.040
View abstract

Whalley L, Stone D, Heard D New Insights into the Tropospheric Oxidation of Isoprene: Combining Field Measurements, Laboratory Studies, Chemical Modelling and Quantum Theory ATMOSPHERIC AND AEROSOL CHEMISTRY 339 55-95, 2014
DOI:10.1007/128_2012_359

Stone D, Blitz M, Daubney L, Ingham T, Seakins P CH2OO Criegee biradical yields following photolysis of CH2I2 in O2. Phys Chem Chem Phys 15 19119-19124, 2013
DOI:10.1039/c3cp52466c
View abstract

Edwards PM, Evans MJ, Furneaux KL, Hopkins J, Ingham T, Jones C, Lee JD, Lewis AC, Moller SJ, Stone D, Whalley LK, Heard DE OH reactivity in a South East Asian tropical rainforest during the oxidant and particle photochemical processes (OP3) project Atmospheric Chemistry and Physics 13 9497-9514, 2013
DOI:10.5194/acp-13-9497-2013
View abstract

Edwards PM, Evans MJ, Furneaux KL, Hopkins J, Ingham T, Jones C, Lee JD, Lewis AC, Moller SJ, Stone D, Whalley LK, Heard DE OH reactivity in a South East Asian Tropical rainforest during the Oxidant and Particle Photochemical Processes (OP3) project Atmospheric Chemistry and Physics Discussions 13 5233-5278, 2013
DOI:10.5194/acpd-13-5233-2013
View abstract

Vaughan S, Ingham T, Whalley LK, Stone D, Evans MJ, Read KA, Lee JD, Moller SJ, Carpenter LJ, Lewis AC, Fleming ZL, Heard DE Seasonal observations of OH and HO2in the remote tropical marine boundary layer Atmospheric Chemistry and Physics 12 2149-2172, 2012
DOI:10.5194/acp-12-2149-2012
View abstract

Stone D, Whalley LK, Heard DE Tropospheric OH and HO2radicals: Field measurements and model comparisons Chemical Society Reviews 41 6348-6404, 2012
DOI:10.1039/c2cs35140d
View abstract

MacKenzie AR, Langford B, Pugh TAM, Robinson N, Misztal PK, Heard DE, Lee JD, Lewis AC, Jones CE, Hopkins JR, Phillips G, Monks PS, Karunaharan A, Hornsby KE, Nicolas-Perea V, Coe H, Gabey AM, Gallagher MW, Whalley LK, Edwards PM, Evans MJ, Stone D, Ingham T, Commane R, Furneaux KL, McQuaid JB, Nemitz E, Seng Y, Fowler D, Pyle JA, Hewitt CN The atmospheric chemistry of trace gases and particulate matter emitted by different land uses in Borneo Philosophical Transactions of the Royal Society B: Biological Sciences 366 3177-3195, 2011
DOI:10.1098/rstb.2011.0053
View abstract

Edwards P, Evans MJ, Commane R, Ingham T, Stone D, Mahajan AS, Oetjen H, Dorsey JR, Hopkins JR, Lee JD, Moller SJ, Leigh R, Plane JMC, Carpenter LJ, Heard DE Hydrogen oxide photochemistry in the northern Canadian spring time boundary layer JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 116 -, 2011
DOI:10.1029/2011JD016390

Whalley LK, Edwards PM, Furneaux KL, Goddard A, Ingham T, Evans MJ, Stone D, Hopkins JR, Jones CE, Karunaharan A, Lee JD, Lewis AC, Monks PS, Moller SJ, Heard DE Quantifying the magnitude of a missing hydroxyl radical source in a tropical rainforest Atmospheric Chemistry and Physics 11 7223-7233, 2011
DOI:10.5194/acp-11-7223-2011
View abstract

Stone D, Evans MJ, Edwards PM, Commane R, Ingham T, Rickard AR, Brookes DM, Hopkins J, Leigh RJ, Lewis AC, Monks PS, Oram D, Reeves CE, Stewart D, Heard DE Isoprene oxidation mechanisms: Measurements and modelling of OH and HO2 over a South-East Asian tropical rainforest during the OP3 field campaign Atmospheric Chemistry and Physics 11 6749-6771, 2011
DOI:10.5194/acp-11-6749-2011
View abstract

Mari CH, Reeves CE, Law KS, Ancellet G, Andrés-Hernández MD, Barret B, Bechara J, Borbon A, Bouarar I, Cairo F, Commane R, Delon C, Evans MJ, Fierli F, Floquet C, Galy-Lacaux C, Heard DE, Homan CD, Ingham T, Larsen N, Lewis AC, Liousse C, Murphy JG, Orlandi E, Oram DE, Saunois M, Serça D, Stewart DJ, Stone D, Thouret V, Velthoven PV, Williams JE Atmospheric composition of West Africa: Highlights from the AMMA international program Atmospheric Science Letters 12 13-18, 2011
DOI:10.1002/asl.289
View abstract

Carpenter LJ, Fleming ZL, Read KA, Lee JD, Moller SJ, Hopkins JR, Purvis RM, Lewis AC, Müller K, Heinold B, Herrmann H, Fomba KW, Van Pinxteren D, Müller C, Tegen I, Wiedensohler A, Müller T, Niedermeier N, Achterberg EP, Patey MD, Kozlova EA, Heimann M, Heard DE, Plane JMC, Mahajan A, Oetjen H, Ingham T, Stone D, Whalley LK, Evans MJ, Pilling MJ, Leigh RJ, Monks PS, Karunaharan A,Vaughan S, Arnold SR, Tschritter J, Pöhler D, Frieà U, Holla R, Mendes LM, Lopez H, Faria B, Manning AJ, Wallace DWR Seasonal characteristics of tropical marine boundary layer air measured at the cape verde atmospheric observatory Journal of Atmospheric Chemistry 67 87-140, 2010
DOI:10.1007/s10874-011-9206-1
View abstract

Andrés-Hernández MD, Stone D, Brookes DM, Commane R, Reeves CE, Huntrieser H, Heard DE, Monks PS, Burrows JP, Schlager H, Kartal D, Evans MJ, Floquet CFA, Ingham T, Methven J, Parker AE Peroxy radical partitioning during the AMMA radical intercomparison exercise Atmospheric Chemistry and Physics 10 10621-10638, 2010
DOI:10.5194/acp-10-10621-2010
View abstract

Commane R, Floquet CFA, Ingham T, Stone D, Evans MJ, Heard DE Observations of OH and HO2radicals over West Africa Atmospheric Chemistry and Physics 10 8783-8801, 2010
DOI:10.5194/acp-10-8783-2010
View abstract

Hewitt CN, Lee JD, MacKenzie AR, Barkley MP, Carslaw N, Carver GD, Chappell NA, Coe H, Collier C, Commane R, Davies F, Davison B, Dicarlo P, Di Marco CF, Dorsey JR, Edwards PM, Evans MJ, Fowler D, Furneaux KL, Gallagher M, Guenther A, Heard DE, Helfter C, Hopkins J, Ingham T, Irwin M, Jones C, Karunaharan A, Langford B, Lewis AC, Lim SF, MacDonald SM, Mahajan AS, Malpass S, McFiggans G, Mills G, Misztal P, Moller S, Monks PS, Nemitz E, Nicolas-Perea V, Oetjen H, Oram DE, Palmer PI, Phillips GJ, Pike R, C Plane JM, Pugh T, Pyle JA, Reeves CE, Robinson NH, Stewart D, Stone D, Whalley LK, Yin X Overview: Oxidant and particle photochemical processes above a south-east Asian tropical rainforest (the OP3 project): Introduction, rationale, location characteristics and tools Atmospheric Chemistry and Physics 10 169-199, 2010
View abstract

Hewitt CN, Lee JD, MacKenzie AR, Barkley MP, Carslaw N, Carver GD, Chappell NA, Coe H, Collier C, Commane R, Davies F, Davison B, Di Carlo P, Di Marco CF, Dorsey JR, Edwards PM, Evans MJ, Fowler D, Furneaux KL, Gallagher M, Guenther A, Heard DE, Helfter C, Hopkins J, Ingham T, Irwin M, Jones C, Karunaharan A, Langford B, Lewis AC, Lim SF, MacDonald SM, Mahajan AS, Malpass S, McFiggans G, Mills G, Misztal P, Moller S, Monks PS, Nemitz E, Nicolas-Perea V, Oetjen H, Oram DE, Palmer PI, Phillips GJ, Pike R, Plane JMC, Pugh T, Pyle JA, Reeves CE, Robinson NH, Stewart D, Stone D, Whalley LK, Yang X Overview: oxidant and particle photochemical processes above a south-east Asian tropical rainforest (the OP3 project): introduction, rationale, location characteristics and tools (vol 10, pg 169, 2010) ATMOS CHEM PHYS 10 563-563, 2010

Hewitt CN, Lee JD, MacKenzie AR, Barkley MP, Carslaw N, Carver GD, Chappell NA, Coe H, Collier C, Commane R, Davies F, Davison B, Di Carlo P, Di Marco CF, Dorsey JR, Edwards PM, Evans MJ, Fowler D, Furneaux KL, Gallagher M, Guenther A, Heard DE, Helfter C, Hopkins J, Ingham T, Irwin M, Jones C, Karunaharan A, Langford B, Lewis AC, Lim SF, MacDonald SM, Mahajan AS, Malpass S, McFiggans G, Mills G, Misztal P, Moller S, Monks PS, Nemitz E, Nicolas-Perea V, Oetjen H, Oram DE, Palmer PI, Phillips GJ, Pike R, Plane JMC, Pugh T, Pyle JA, Reeves CE, Robinson NH, Stewart D, Stone D, Whalley LK, Yang X Overview: oxidant and particle photochemical processes above a south-east Asian tropical rainforest (the OP3 project): introduction, rationale, location characteristics and tools (vol 10, pg 169, 2010) ATMOSPHERIC CHEMISTRY AND PHYSICS 10 563-563, 2010
DOI:10.5194/acp-10-563-2010

Stone D, Evans MJ, McQuaid JB, Stone D, Commane R, Ingham T, Floquet CFA, Heard DE, Ingham T, Heard DE, Brookes DM, Monks PS, Purvis R, Purvis R, Hamilton J, Hopkins J, Lee J, Lewis AC, Hopkins J, Lee J, Lewis AC, Stewart D, Murphy J, Mills G, Oram D, Reeves CE, Commane R, Floquet CFA HO observations over West Africa during AMMA: Impact of isoprene and NO Atmospheric Chemistry and Physics Discussions 10 17029-17072, 2010
DOI:10.5194/acpd-10-17029-2010
View abstract