Professional summary

Dr Edward Tipping is an environmental chemist with research interests including metals and their toxic effects, the properties of natural organic matter, and macronutrient cycling.

Before his retirement in 2017, he led the Long Term - Large Scale Macronutrients Project, and contributed to modelling carbon (C), nitrogen (N) and phosphorus (P) in soils and water across the UK. This work included simulation of the effects of atmospheric deposition on plant, soil and water C, N and P pools, and the consequences for plant net primary productivity and species richness.

He led projects to investigate the optical properties of dissolved organic matter (DOM) in surface waters, and the subsequent derivation of a three-pool model that allows DOM to be estimated from optical absorbance alone.

Edward led work to simulate the toxicity of metals and acidity towards aquatic and soil organisms, and this resulted in a new model that can predict the dependency of toxicity on solution chemistry, while including metal mixture effects. Since retiring and becoming a CEH Fellow, he has developed this research further, focusing on long-term field observations made on zooplankton in contaminated lakes at Sudbury Ontario, in collaboration with Canadian colleagues.

Selected publications

Tipping, E. et al. , (2011), Humic Ion-Binding Model VII: a revised parameterisation of cation-binding by humic substances. Environmental Chemistry, 8, 225-235, http://www.publish.csiro.au/nid/188/paper/EN11016.htm

Tipping, E. et al. , (2014), Atmospheric deposition of phosphorus to land and freshwater. Environmental Science: Processes and Impacts, 16, 1608-1617, http://pubs.rsc.org/en/Content/ArticleLanding/2014/EM/c3em00641g#divAbstract

Tipping Edward et al. , (2016), The C:N:P:S stoichiometry of soil organic matter. http://dx.doi.org/10.1007/s10533-016-0247-z

Lofts, Stephen et al. , (2008), The chemical speciation of Fe(III) in freshwaters. Aquatic Geochemistry, 14, 337-358, http://dx.doi.org/10.1007/s10498-008-9040-5

Stockdale, Anthony et al. , (2010), Toxicity of proton-metal mixtures in the field: linking stream macroinvertebrate species diversity to chemical speciation and b. Aquatic Toxicology, 100, 112-119, http://dx.doi.org/10.1016/j.aquatox.2010.07.018

Carter, Heather et al. , (2012), Freshwater DOM quantity and quality from a two-component model of UV absorbance. Water Research, 46, 4532-4542, http://www.sciencedirect.com/science/article/pii/S004313541200348X

Tipping, E. et al. , (2010), Critical Limits for Hg(II) in soils, derived from chronic toxicity data. Environmental Pollution, 158, 2465-2471, http://dx.doi.org/10.1016/j.envpol.2010.03.027

Tipping, E. et al. , (2006), Simulating the long-term chemistry of an upland UK catchment: Heavy metals. Environmental Pollution, 141, 139-150, http://www.sciencedirect.com/science/journal/02697491

Tipping, E.; Lofts, S., (2013), Metal mixture toxicity to aquatic biota in laboratory experiments: application of the WHAM-FTOX model . Aquatic Toxicology, 142-143, 114-122, http://dx.doi.org/10.1016/j.aquatox.2013.08.003

Tipping E. et al. , (2017), Long-term increases in soil carbon due to ecosystem fertilization by atmospheric nitrogen deposition demonstrated by regional-scale modelling and observations. Scientific Reports, 7, http://dx.doi.org/10.1038/s41598-017-02002-w