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Durham University

Email and Telephone Directory

Staff Profile

Professor Fred Worrall, MA (Cantab)1992, PhD (Reading)1995

Professor of Environmental Chemistry in the Department of Earth Sciences
Telephone: +44 (0) 191 33 42295
Room number: Rm 326

Contact Professor Fred Worrall (email at fred.worrall@durham.ac.uk)

Biography

2013 – present — Professor in Environmental Chemistry, Dept. of Earth Sciences, University of Durham.

2006 – 2012: — Professor Reader in Environmental Chemistry, Dept. of Earth Sciences, University of Durham.

2002 – 2006 — Professor Senior lecturer in Environmental Chemistry, Dept. of Earth Sciences, University of Durham.

1998  2002: — Lecturer in Environmental Chemistry, Dept. of Geological Sciences, University of Durham.

1996 – 1998 — Temporary lecturer in Environmental Chemistry, Dept. of Geological Sciences, University of Durham.

1995 – 1996 — Higher Scientific Officer, Fluid Processes Group, British Geological Survey

1995 — PhD (Reading)

1992 — MA (Cantab)


Career Research Highlights

Fred’s research career started with work on pesticide pollution which included use of molecular modelling that lead to an ab initio explanation of groundwater pollution and new methods of measuring groundwater vulnerability. While in Durham, Fred was the first to develop a complete carbon budget for a Peatlands which was extended to consider impact of management upon the greenhouse gas balance of Peatlands and modelling of these fluxes. More recent work has considered global processes and especially the impact of the oxidation state of the terrestrial biosphere.


Committee and Society Service

Member of the NERC peer review college


Conferences and Workshops

2008, 2009, 2010, 2011, 2012 — “Peatlands”. Session Convenor, EGU General Assembly

2007“Biogeochemical fluxes from northern watersheds”, Session Convenor, AGU Fall Meeting


Invited Speaker (selected, since 2008)

2012 — AGU Fall Meeting

2011 — AGU Fall Meeting

2010 — AGU Fall meeting

2008 — EGU General Assembly


Membership of Organisations and Societies

Member of the Higher Education Academy

Member of the International Association of Hydrological Sciences

Member of the European Geosciences Union

Member of the American Geophysical Union


Research Groups

Department of Earth Sciences

Research Interests

  • Agricultural pollution, especially pesticide and nitrate pollution
  • Carbon biogeochemistry especially of peats and rivers
  • Contaminant hydrology
  • Environmental chemistry

Teaching Areas

  • Earth and Environment (1st year)

Selected Publications

Journal Article

  • Noacco, Valentina, Duffy, Christopher J., Wagener, Thorsten, Worrall, Fred, Fasiolo, Matteo & Howden, Nicholas J.K. (2019). Drivers of inter- and intra-annual variability of dissolved organic carbon concentration in the River Thames between 1884 and 2013. Hydrological Processes 33(6): 994-1012.
  • Worrall, Fred, Wade, Andrew J., Davies, Richard J. & Hart, Alwyn (2019). Setting the baseline for shale gas – establishing effective sentinels for water quality impacts of unconventional hydrocarbon development. Journal of Hydrology 571: 516-527.
  • Peacock, M., Gauci, V., Baird, A.J., Burden, A., Chapman, P.J., Cumming, A., Evans, J.G., Grayson, R.P., Holden, J., Kaduk, J., Morrison, R., Page, S., Pan, G., Ridley, L.M., Williamson, J., Worrall, F. & Evans, C.D. (2019). The full carbon balance of a rewetted cropland fen and a conservation-managed fen. Agriculture, Ecosystems & Environment 269: 1-12.
  • Worrall, Fred, Boothroyd, Ian M., Gardner, Rosie L., Howden, Nicholas J.K., Burt, Tim P., Smith, Richard, Mitchell, Lucy, Kohler, Tim & Gregg, Ruth (2019). The impact of peatland restoration on local climate – restoration of a cool humid island. Journal of Geophysical Research: Biogeosciences 124(6): 1696-1713.
  • Worrall, Fred, Howden, Nicholas J.K., Burt, Tim P. & Bartlett, Rebecca (2019). The importance of sewage effluent discharge in the export of dissolved organic carbon from United Kingdom rivers. Hydrological Processes 33(13): 1851-1864.
  • Moody, Catherine S., Worrall, Fred, Clay, Gareth D., Burt, Tim P., Apperley, David C. & Rose, Rob (2018). A Molecular Budget for a Peatland Based Upon 13C Solid‐State Nuclear Magnetic Resonance. Journal of Geophysical Research: Biogeosciences 123(2): 547-560.
  • Clancy, S.A., Worrall, F., Davies, R.J. & Gluyas, J.G. (2018). An assessment of the footprint and carrying capacity of oil and gas well sites: The implications for limiting hydrocarbon reserves. Science of The Total Environment 618: 586-594.
  • Worrall, Fred, Howden, Nicholas J.K., Burt, Tim P. & Bartlett, Rebecca (2018). Declines in the dissolved organic carbon (DOC) concentration and flux from the UK. Journal of Hydrology 556: 775-789.
  • Civan, Aylin, Worrall, Fred, Jarvie, Helen P., Howden, Nicholas J.K. & Burt, Tim P. (2018). Forty-year trends in the flux and concentration of phosphorus in British rivers. Journal of Hydrology 558: 314-327.
  • Worrall, Fred, Burt, Tim P., Howden, Nicholas J.K., Hancock, Gregory R. & Wainwright, John (2018). The fate of suspended sediment and particulate organic carbon in transit through the channels of a river catchment. Hydrological Processes 32(1): 146-159.
  • Worrall, Fred, Moody, Catherine S., Clay, Gareth D., Burt, Tim P., Kettridge, Nicholas & Rose, Rob (2018). Thermodynamic control of the carbon budget of a peatland. Journal of Geophysical Research: Biogeosciences 123(6): 1863-1878.
  • Noacco, Valentina, Wagener, Thorsten, Worrall, Fred, Burt, Tim P. & Howden, Nicholas J. K. (2017). Human impact on long-term organic carbon export to rivers. Journal of Geophysical Research: Biogeosciences 122(4): 947-965.
  • Moody, C. S. & Worrall, F. (2017). Modeling rates of DOC degradation using DOM composition and hydroclimatic variables. Journal of Geophysical Research: Biogeosciences 122(5): 1175-1191.
  • Worrall, Fred, Moody, Catherine S., Clay, Gareth D., Burt, Tim P. & Rose, Rob (2017). The flux of organic matter through a peatland ecosystem: The role of cellulose, lignin, and their control of the ecosystem oxidation state. Journal of Geophysical Research: Biogeosciences 122(7): 1655-1671.
  • Moody, C.S., Worrall, F. & Burt, T.P. (2016). Identifying DOC gains and losses during a 20-year record in the Trout Beck catchment, Moor House, UK. Ecological Indicators 68: 102-114.
  • Powers, S.M., Bruulsema, T.W., Burt, T.P., Chan, N.I., Elser, J.J., Haygarth, P.M., Howden, N.J.K., Jarvie, H.P., Lyu, Y., Peterson, H.M., Sharpley, A.N., Shen, J., Worrall, F. & Zhang, F. (2016). Long-term accumulation and transport of anthropogenic phosphorus in three river basins. Nature Geoscience 9(5): 353-356.
  • Palmer, S.M., Evans, C.D., Chapman, P.J., Burden, A., Jones, T.G., Allott, T.E.H., Evans, M.G., Moody, C.S., Worrall, F. & Holden, J. (2016). Sporadic hotspots for physico-chemical retention of aquatic organic carbon: from peatland headwater source to sea. Aquatic Sciences 78(3): 491-504.
  • Moody, C.S. & Worrall, F. (2016). Sub-daily rates of degradation of fluvial carbon from a peat headwater stream. Aquatic Sciences 78(3): 419-431.
  • Burt, T.P., Howden, N.J.K. & Worrall, F. (2016). The changing water cycle: hydroclimatic extremes in the British Isles. Wiley Interdisciplinary Reviews: Water 3(6): 854-870.
  • Worrall, F., Clay, G.D., Moody, C.S., Burt, T.P. & Rose, R. (2016). The effective oxidation state of a peatland. Journal of Geophysical Research - Biogeosciences 121(1): 145-158.
  • Worrall, F., Burt, T.P. & Howden, N.J.K. (2016). The fluvial flux of particulate organic matter from the UK: the emission factor of soil erosion. Earth Surface Processes and Landforms 41(1): 61-71.
  • Worrall, F., Jarvie,H.P., Howden, N.J.K. & Burt, T.P. (2016). The fluvial flux of total reactive and total phosphorus from the UK in the context of a national phosphorus budget: comparing UK river fluxes with phosphorus trade imports and exports. Biogeochemistry 130(1): 31-51.
  • Worrall, F., Clay, G.D. & Macdonald, A. (2016). The impact of fertilizer management on the oxidation status of terrestrial organic matter. Soil Use and Management 32(1): 45-52.
  • Finlay, N.C., Johnson, K. & Worrall, F. (2016). The role of water treatment abstraction in the flux and greenhouse gas emissions from organic carbon and nitrogen within UK rivers. Water Resources Research 52(10): 8190-8201.
  • Worrall, F., Moody, C.S., Clay, G.D., Burt, T.P. & Rose, R. (2016). The total phosphorus budget of a peat-covered catchment. Journal of Geophysical Research: Biogeosciences 121(7): 1814-1828.
  • Worrall, F., Burt, T.P., Howden, N.J.K. & Whelan, M.J. (2016). The UK’s total nitrogen budget from 1990 to 2020: a transition from source to sink? Biogeochemistry 129(3): 325-340.
  • Worrall, F., Burt, T.P., Clay, G.D. & Moody, C.S. (2015). A 19-year long energy budget of an upland peat bog, northern England. Journal of Hydrology 520: 17-29.
  • Clay, G.D. & Worrall, F. (2015). Carbon stocks and carbon fluxes from a 10-year prescribed burning chronosequence on a UK blanket peat. Soil Use and Management 31(1): 39-51.
  • Clay, G.D. & Worrall, F. (2015). Estimating the oxidative ratio of UK peats and agricultural soils. Soil Use and Management 31(1): 77-88.
  • Worrall, F., Howden, N.J.K. & Burt, T.P. (2015). Evidence for nitrogen accumulation: the total nitrogen budget of the terrestrial biosphere of a lowland agricultural catchment. Biogeochemistry 123(3): 411-428.
  • Barraclough, D., Smith, P., Worrall, F., Black, H. & Bhogal, A. (2015). Is there an impact of climate change on soil carbon contents in England and Wales? European Journal of Soil Science 66(3): 451-462.
  • Clay, G.D. & Worrall, F. (2015). Oxidative ratio (OR) of Southern African soils and vegetation: Updating the global OR estimate. CATENA 126: 126-133.
  • Worrall, F., Burt, T.P. & Howden, N.J.K. (2015). The problem of self-correlation in fluvial flux data - the case of nitrate flux from UK rivers. Journal of Hydrology 530: 328-335.
  • Worrall, F., Howden, N.J.K. & Burt, T.P. (2015). Time series analysis of the world’s longest fluvial nitrate record: evidence for changing states of catchment saturation. Hydrological Processes 29(3): 434-444.
  • Worrall, F., Howden, N.J.K. & Burt, T.P. (2015). Understanding the diurnal cycle in fluvial dissolved organic carbon – The interplay of in-stream residence time, day length and organic matter turnover. Journal of Hydrology 523: 830-838.
  • Worrall, F., Howden, N.J.K. & Burt, T.P. (2014). A method of estimating in-stream residence time of water in rivers. Journal of Hydrology 512: 274-284.
  • Rawlins, B.G., Palumbo-Roe, B., Gooddy, D.C., Worrall, F. & Smith, H. (2014). A model of potential carbon dioxide efflux from surface water across England and Wales using headwater stream survey data and landscape predictors. Biogeosciences 11(7): 1911-1925.
  • Krause, S., Freer, J., Hannah, D.M., Howden, N.J.K., Wagener, T. & Worrall, F. (2014). Catchment similarity concepts for understanding dynamic biogeochemical behaviour of river basins. Hydrological Processes 28(3): 1554-1560.
  • Worrall, F. & Moody, C.S. (2014). Modeling the rate of turnover of DOC and particulate organic carbon in a UK, peat-hosted stream: Including diurnal cycling in short-residence time systems. Journal of Geophysical Research: Biogeosciences 119(10): 1934-1946.
  • Worrall, F. & Clay, G.D. (2014). Potential use of heather, Calluna vulgaris, as a bioenergy crop. Biomass and Bioenergy 64: 140-151.
  • Moosdorf, N., Weiss, A., Müller, F., Lauerwald, R., Hartmann, J. & Worrall, F. (2014). Salt marshes in the silica budget of the North Sea. Continental Shelf Research 82: 31-36.
  • Haygarth, PM, Jarvie, HP, Powers, SM, Sharpley, AN, Elser, JJ, Shen, JB, Peterson, HM, Chan, NI, Howden, NJK, Burt, TP, Worrall, F, Zhang, FS & Liu, XJ (2014). Sustainable Phosphorus Management and the Need for a Long-Term Perspective: The Legacy Hypothesis. Environmental Science & Technology 48(15): 8417-8419.
  • Worrall, F., Burt, T.P. & Howden, N.J.K. (2014). The fluvial flux of particulate organic matter from the UK: Quantifying in-stream losses and carbon sinks. Journal of Hydrology 519(Part A): 611-625.
  • Almond, S., Clancy, S.A., Davies, R.J. & Worrall, F. (2014). The flux of radionuclides in flowback fluid from shale gas exploitation. Environmental Science & Pollution Research 21(21): 12316-12324.
  • Worrall, F., Burt, T.P., Howden, N.J.K. & Hancock, G.R. (2014). Variation in suspended sediment yield across the UK – A failure of the concept and interpretation of the sediment delivery ratio. Journal of Hydrology 519(Part B): 1985-1996.
  • Worrall, F., Howden, N.J.K. & Burt, T.P. (2013). Assessment of sample frequency bias and precision in fluvial flux calculations – an improved low bias estimation method. Journal of Hydrology 503: 101-110.
  • Worrall, F., Clay, G.D. Masiello, C. & Mynheer, G. (2013). Estimating the oxidative ratio of the global terrestrial biosphere carbon. Biogeochemistry 115(1-3): 23-32.
  • Worrall, F., Burt, T.P. & Howden, N.J.K. (2013). The flux of suspended sediment from the UK 1974 to 2010. Journal of Hydrology 504: 29-39.
  • Moody, C.S., Worrall, F., Evans, C.D. & Jones, T. (2013). The rate of loss of dissolved organic carbon (DOC) through a catchment. Journal of Hydrology 492: 139-150.
  • Worrall, F, Burt, T.P., Howden, N.J.K & Whelan, M.J. (2012). The fluvial flux of nitrate from the UK terrestrial biosphere – An estimate of national-scale in-stream nitrate loss using an export coefficient model. Journal of Hydrology 414-415: 31-39.
  • Worrall, F.,, Clay, G.D.,, Burt, T.P., & Rose, R., (2012). The multi-annual nitrogen budget of a peat-covered catchment – changing from sink to source? Science of the Total Environment 433: 176-188.
  • Worrall, F., Rowson, J. G., Evans, M. G., Pawson, R., Daniels, S. & Bonn, A. (2011). Carbon fluxes from eroding peatlands – the carbon benefit of revegetation following wildfire. Earth Surface Processes and Landforms 36(11): 1487-1498.
  • Bell, M.J. & Worrall, F. (2011). Charcoal addition to soils in NE England: A carbon sink with environmental co-benefits? Science of the Total Environment 409(9): 1704-1714.
  • Clay, G.D. & Worrall, F (2011). Charcoal production in a UK moorland wildfire - How important is it? Journal of Environmental Management 92(3): 676-682.
  • Fitton, N., Ejerenwa, C. P., Bhogal, A., Edgington, P., Black, H., Lilly, A., Barraclough, D., Worrall, F., Hillier, J. & Smith, P. (2011). Greenhouse gas mitigation potential of agricultural land in Great Britain. Soil Use and Management 27(4): 491-501.
  • Howden, N.J.K., Burt, T.P., Worrall, F & Whelan, M.J. (2011). Monitoring fluvial water chemistry for trend detection: hydrological variability masks trends in datasets covering fewer than 12 years. Journal of Environmental Monitoring 13(3): 514-521.
  • Burt, T.P., Howden, N.J.K, Worrall, F & Whelan, M.J. (2011). Nitrate in United Kingdom Rivers: Policy and Its Outcomes Since 1970. Environmental Science and Technology 45(1): 175-181.
  • Burt, T.P., Howden, N.J.K, Worrall, F & McDonnell, J.J. (2011). On the value of long-term, low-frequency water quality sampling: avoiding throwing the baby out with the bathwater. Hydrological Processes 25(5): 828-830.
  • Bell, M. J. Worrall, F., Smith, Pete, Bhogal, Anne, Black, Helaina, Lilly, Allan, Barraclough, Declan & Merrington, Graham (2011). UK land-use change and its impact on SOC: 1925–2007. Global Biogeochemical Cycles 25: GB4015.
  • Worrall, F., Bell, M.J. & Bhogal, A. (2010). Assessing the probability of carbon and greenhouse gas benefit from the management of peat soils. Science of the Total Environment 408(13): 2657-2666.
  • Billett, M.F., Charman, D.J., Clark, J.M., Evans, C.D., Evans, M.G., Ostle, N.J., Worrall, F, Burden, A, Dinsmore, K.J., Jones, T., McNamara, N.P., Parry, L, Rowson, J.G. & Rose, R (2010). Carbon balance of UK peatlands: current state of knowledge and future research challenges. Climate Research 45(1): 13-29.
  • Clay, G.D., Worrall, F. & Rose, R. (2010). Carbon budgets of an upland blanket bog managed by prescribed fire. Journal of Geophysical Research - Biogeosciences 115(G4): G04037.
  • Clay, G.D., Worrall, F. & Fraser, E.D.G. (2010). Compositional changes in soil water and runoff water following managed burning on a UK upland blanket bog. Journal of Hydrology 380(1-2): 135-145.
  • Smith, P, Bhogal, A, Edgington, P, Black, H, Lilly, A, Barraclough, D, Worrall, F, Hillier, J & Merrington, G (2010). Consequences of feasible future agricultural land-use change on soil organic carbon stocks and greenhouse gas emissions in Great Britain. Soil Use and Management 26(4): 381-398.
  • Worrall, F & Burt, T.P. (2010). Has the composition of fluvial DOC changed? Spatiotemporal patterns in the DOC-color relationship. Global Biogeochemical Cycles 24: Art No. GB1010.
  • Burt, T.P., Howden, N.J.K., Worrall, F & Whelan, M.J. (2010). Long-term monitoring of river water nitrate: how much data do we need? Journal of Environmental Monitoring 12(1): 71-79.
  • Clark, J.M., Billett, M.F., Coyle, M, Croft, S, Daniels, S, Evans, C.D., Evans, M, Freeman, C, Gallego-Sala, A.V., Heinemeyer, A, House, J.I., Montieht, D.T., Nayak, D, Orr, H.G., Prentice, I.C., Rose, R, Roswon, J, Smith, J.U., Smith, P, Tun, Y.M., Vanguelova, E, Wetterhall, F & Worrall, F (2010). Model inter-comparison between statistical and dynamic model assessments of the long-term stability of blanket peat in Great Britain (1940-2099). Climate Research 45(1): 227-U281.
  • Howden, N.J.K, Burt, T.P., Worrall, F., Whelan, M.J. & Bieroza, M. (2010). Nitrate concentrations and fluxes in the River Thames over 140 years (1868-2008): are increases irreversible? Hydrological Processes 24(18): 2657-2662.
  • Rowson, J.G., Gibson, H.S., Worrall, F, Ostle, N, Burt, T.P. & Adamson, J.K. (2010). The complete carbon budget of a drained peat catchment. Soil Use and Management 26(3): 261-273.
  • Clay, G.D., Worrall, F. & Fraser, E.D.G (2009). Effects of managed burning upon dissolved organic carbon (DOC) in soil water and runoff water following a managed burn of a UK blanket bog. Journal of Hydrology 367(1-2): 41-51.
  • Worrall, F, Evans, M.G., Bonn, A, Reed, M.S., Chapman, D & Holden, J (2009). Can carbon offsetting pay for upland ecological restoration? Science of the Total Environment 408(1): 26-36.
  • Worrall, F & Burt, T.P. (2009). Changes in DOC treatability: Indications of compositional changes in DOC trends. Journal of Hydrology 366(1-4): 1-8.
  • Gibson, H.S., Worrall, F, Burt, T.P. & Adamson, J.K. (2009). DOC budgets of drained peat catchments: implications for DOC production in peat soils. Hydrological Processes 23(13): 1901-1911.
  • Bell, M.J. & Worrall, F. (2009). Estimating a region's soil organic carbon baseline: The undervalued role of land-management. Geoderma 152(1-2): 74-84.
  • Worrall, F, Burt, T.P., Howden, N.J.K & Whelan, M.J. (2009). Fluvial flux of nitrogen from Great Britain 1974-2005 in the context of the terrestrial nitrogen budget of Great Britain. Global Biogeochemical Cycles 23: GB3017.
  • Shepherd, T.J., Chenery, S.R.N., Pashley, V, Lord, R.A., Ander, L.E., Breward, N, Hobbs, S.F., Horstwood, M, Klinck, B.A. & Worrall, F (2009). Regional lead isotope study of a polluted river catchment: River Wear, Northern England, UK. Science of the Total Environment 407(17): 4882-4893.
  • Burt, T.P. & Worrall, F (2009). Stream nitrate levels in a small catchment in south west England over a period of 35 years (1970-2005). Hydrological Processes 23(14): 2056-2068.
  • Worrall, F, Spencer, E & Burt, T.P. (2009). The effectiveness of nitrate vulnerable zones for limiting surface water nitrate concentrations. Journal of Hydrology 370(1-4): 21-28.
  • Worrall, F, Burt, T.P., Rowson, J.G., Warburton, J & Adamson, J.K. (2009). The multi-annual carbon budget of a peat-covered catchment. Science of the Total Environment 407(13): 4084-4094.
  • Burt, T.P., Howden, N.J.K., Worrall, F. & Whelan, M.J. (2008). Importance of long-term monitoring for detecting environmental change: lessons from a lowland river in south east England. Biogeosciences 5(6): 1529-1535.
  • Worrall, F, Burt, T.P. & Adamson, J.K. (2008). Linking pulses of atmospheric deposition to DOC release in an upland peat-covered catchment. Global Biogeochemical Cycles 22(4): Art. No. GB4014.
  • Worrall, F., Burt, T.P. & Adamson, J (2008). Long-term records of dissolved organic carbon flux from peat-covered catchments: evidence for a drought effect? Hydrological Processes 22(16): 3181-3193.
  • Worrall, F, Gibson, H.S. & Burt, T.P. (2008). Production vs. solubility in controlling runoff of DOC from peat soils - The use of an event analysis. Journal of Hydrology 358(1-2): 84-95.
  • Worrall, F & Adamson, J.K. (2008). The effect of burning and sheep grazing on soil water composition in a blanket bog: evidence for soil structural changes? Hydrological Processes 22(14): 2531-2541.
  • Worrall, F & Burt, T.P. (2008). The effect of severe drought on the dissolved organic carbon (DOC) concentration and flux from British rivers. Journal of Hydrology 361(3-4): 262-274.
  • Johnson CD & Worrall F (2007). Zeolite film preparation on and within a muscovite mica by hydrothermal growth, and the potential application of the matrix to metal remediation. Water Research 41: 2229-2235.
  • Johnson CD, Mallon AJ & Worrall F (2007). Adhered zeolite preparation on and within a muscovite mica by hydrothermal growth. Clays and Clay Minerals 54(6): 678-688.
  • Worrall, F., Burt, T.P. & Adamson, J.K. (2007). Change in runoff initiation probability over a severe drought in a peat soil – Implications for flowpaths. Journal of Hydrology 345(1-2): 16-26.
  • Holden J, Shotbolt L, Chapman PJ, Dougill AJ, Hubacek K, Kirkby MJ, Reed MS, Turner AGD & Worrall F (2007). Changing environmental conditions in UK moorlands: a review. Earth Science Reviews 82: 75-100.
  • Worrall, F. & Burt, T.P. (2007). Flux of dissolved organic carbon from U.K. rivers. Global Biogeochemical Cycles 21(1): GB1013.
  • Kannan N, White SM, Worrall F & Whelan MJ (2007). Hydrological modelling of a small catchment using SWAT-2000 – Ensuring correct flow partitioning for contaminant modeling. Journal of Hydrology 334: 64-72.
  • Worrall F, Gibson HS & Burt TP (2007). Modelling the impact of drainage and drain-blocking on dissolved organic carbon release from peatlands. Journal of Hydrology 338(1-2): 15-27.
  • Burt, T. & Worrall, F. (2007). Non-stationarity in long time series: some curious reversals in the "memory" effect. Hydrological Processes 21: 3529-3531.
  • Johnson CD & Worrall F (2007). Novel Low Density Granular Adsorbents - Properties of a Composite Matrix from Zeolitisation of Vermiculite. Chemosphere 68: 1153-1162.
  • Worrall, F, Burt, T., Adamson, J, Reed, M, Warburton, J, Armstrong, A & Evans, M (2007). Predicting the future carbon budget of an upland peat catchment. Climatic Change 85(1-2): 139-158.
  • Kannan N, White SM, Worrall F & Whelan MJ (2007). Sensitivity analysis and identification of the best evapotranspiration and runoff options for hydrological modelling in SWAT-2000. Journal of Hydrology 332: 456-466.
  • Worrall, F, Armstrong A & Holden J (2007). Short term impact of peat drain blocking on water colour, dissolved organic carbon concentration and water table depth. Journal of Hydrology 337(2-4): 315-325.
  • Worrall F, Armstrong A & Adamson JK (2007). The effect of burning and sheepgrazing on water table depth and soil water quality in a blanket bog. Journal of Hydrology 339: 1-14.
  • Worrall, F & Burt, T.P. (2007). Trends in DOC concentration in Great Britain. Journal of Hydrology 346(1-2): 81-92.
  • Johnson CD & Worrall F (2007). Zeolitisation of Pumice – Microporous Materials on Macroporous Support Structures Derived From Natural Materials. Journal of Materials Chemistry 17: 476-484.
  • Worrall, F, Burt, T.P & Adamson J (2006). Do nitrogen inputs stimulate dissolved organic carbon production in upland peat bogs? Global Biogeochemical Cycles 20(3): GB3013.
  • Worrall, F, Burt, T.P & Adamson, J (2006). Long-term changes in hydrological pathways in an upland peat catchment – recovery from severe drought? Journal of Hydrology 321: 5-20.
  • Kannan N, White SM, Worrall F & et al. (2006). Pesticide modelling for a small catchment using SWAT-2000. Journal of Environmental Science and Health, Part C 41(7): 1049-1070.
  • Worrall, F, Burt, T.P & Adamson., J (2006). The rate of and controls upon DOC loss in a peat catchment. Journal of Hydrology 321: 311-325.
  • Worrall, F, Burt, T.P & Adamson, J (2006). Trends in drought frequency – the fate of Northern Peatlands. Climatic Change 76(3-4): 339-359.
  • Worrall, F, Burt, T.P & Adamson, J. (2005). Fluxes of dissolved carbon dioxide and inorganic carbon from an upland peat catchment: implications for soil respiration. Biogeochemistry 73(3): 515-539.
  • Worrall, F, Swank,W.T & Burt, T.P (2005). Fluxes of inorganic carbon from forested catchments. Hydrological Processes 19: 3021-3035.
  • Worrall, F & Burt, T.P (2005). Predicting the future DOC flux form upland peat catchments. Journal of Hydrology 300: 126-139.
  • Worrall, F. & Burt, T.P. (2005). Reconstructing long-term records of dissolved CO2. Hydrological Processes 19: 1791-1806.
  • Worrall, F & Lancaster, A (2005). The release of CO2 from riverwaters – the contribution of excess CO2 from groundwater. Biogeochemistry 76: 299-317.
  • Worrall, F, Burt, T.P & Adamson, J (2004). Can climate change explain increases in DOC flux from upland peat catchments? Science of the Total Environment 326: 95-112.
  • Worrall, F & Burt, T.P. (2004). Time series analysis of long-term river dissolved organic carbon records. Hydrological processes 18(5): 893-911.
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