Current Publications

Bicalho, B., Grant-Weaver, I., Sinn, C., Woodland, S., Pearson, G., Larter, S., Duke, M.J.M., and Shotyk, W. (2017) Determination of ultratrace (<0.1 mg/kg) elements in Athabasca Bituminous Sands mineral and bitumen fractions using inductively coupled plasma sector field mass spectrometry (ICP-SFMS). Fuel 206:248-257. DOI: org/10.1016/j.fuel.2017.05.095.

Concheri, G., Stevanato, P., Zaccone, C., Shotyk, W., D’Orazio, V., Miano, T.M., Lobianco, D., Piffanelli, P., and Squartini, A. (2017) Rapid peat accumulation favours the occurrence of both fen and bog microbial communities within a Mediterranean, free-floating peat island. Scientific Reports 8511. DOI:10.1038/s41598-017-08662-y.

Cuss, C.W., Grant-Weaver, I., Shotyk, W. (2017) AF4-ICPMS with the 300 Dalton membrane to resolve metal-bearing 'colloids' < 1 kDa: optimization, fractogram deconvolution, and advanced quality control. Analytical Chemistry 89(15):8027-8035 DOI:10.1021/acs.analchem.7b01427.

Donner, M.W., Javed M.B., Shotyk, W., Francesconi, K.A., and Siddique, T. (2017) Arsenic speciation in the lower Athabasca River watershed: A geochemical investigation of the dissolved and particulate phases. Environmental Pollution  224: 265-274. DOI: 10.1016/j.envpol.2017.02.004.


Javed, M.B., Cuss, C.W., and Shotyk, W. (2017) Snowmelt from the Athabasca Bituminous Sands region is an insignificant source of dissolved Pb to the river. Scientific Reports 7:43622. DOI: 10.1038/srep43622.

Kempter, H., Krachler, M., Shotyk, W. and Zaccone, C. (2017) Validating modelled data on major and trace element deposition in southern Germany using Sphagnum moss. Atmospheric Environment 167:656-664.

Kempter, H., Krachler, M., Shotyk, W., Zaccone, C. (2017)  Accumulation rates of major and trace elements in Sphagnum moss from four southern German bogs, and comparison with available moss monitoring data. Ecological Indicators 78:19-25. DOI: 10.1016/j.ecolind.2017.02.029. 
Magnan, G., van Bellen, S., Davies, L.J., Froese, D.G., Garneau, M., Mullan-Boudreau, G., Shotyk, W., and Zaccone, C. (2017). Impact of Little Ice Age and 20th century climate change on peatland vegetation dynamics using a multi-proxy approach and high-resolution peat chronologies. Quaternary Science Reviews 185:230-243.

Mullan-Boudreau, G., Davies, L., Froese, D., Noernberg, T., Pelletier, R. and Shotyk, W. (2017) Reconstructing past rates of atmospheric dust deposition in the Athabasca bituminous sands region using peat cores from bogs. Land Degradation and Development 28:2468-2481 DOI: 10.1002/ldr.2782.

Mullan-Boudreau, G., Noernberg, T., Pelletier, R. and Shotyk, W. (2017) Sphagnum moss as an indicator of contemporary rates of atmospheric dust deposition in the Athabasca Bituminous Sands region. Environmental Science and Technology 51(13):7422–7431. DOI: 10.1021/acs.est.6b06195.

Shotyk, W. Arctic plants take up mercury vapour (2017). News and Views Nature 547: 167-168. DOI:10.1038/547167a.

Shotyk, W. Trace metals in soils of the bituminous sands mining region of Alberta: a critical, geochemical perspective of the study (submitted 18 April, 2017). Critical Comment on the paper by C. Boutin and D.J. Carpenter (2017) entitled“Assessment of wetland/upland vegetation communities and evaluation of soil‐plant contamination by polycyclic aromatic hydrocarbons and trace metals in regions near oil sands mining in Alberta”. Science of the Total Environment 618: 866-869. 

Shotyk, W.,  Appleby, P.G., Beatriz, B., Davies, L.J., Froese, D., Grant-Weaver, I., Magnan, G., Mullan-Boudreau, G., Noernberg, T.,  Pelletier, R., Shannon, B., van Bellen, S., Zaccone, C. (2017) Peat bogs document decades of declining atmospheric contamination by trace metals in the Athabasca Bituminous Sands region. Environmental Science and Technology 51(11):6237- 6249. DOI: 10.1021/acs.est.6b04909.

Sun, C., Shotyk, W., Cuss, C.W., Donner, M.W., Fennell, J., Javed, M., Noernberg, T., Poesch, M., Pelletier, R., Sinnatamby, N., Siddique, T. and Martin, J.W. (2017) Characterization of napthenic acids and bitumen‐derived organics in natural waters of the Athabasca Oil Sands Region. Environmental Science and Technology. DOI: 10.1021/acs.est.7b02082.

Zaccone , C., Lobianco, D., Shotyk, W., Ciavatta, C., Appleby, P.G.,  Brugiapaglia, E.,  Miano, T.M., and D’Orazio, V. (2017) Highly anomalous accumulation rates of C and N recorded by a relic, free-floating peatland in Central Italy. Scientific Reports 7:43040. DOI: 10.1038/srep43040.

Outridge, P.M., Goodsite, M.E., Bennike, O., Rausch, N., Shotyk, W. (2016) Seabird transfer of nutrients and trace elements from the north water polynya to land during the mid-holocene warm period, carey islands, northwest Greenland. Arctic 69(3):253-265. DOI: 10.14430/arctic4577.

Shotyk, W.,  Bicalho,  Cuss, C.W., Donner, M.W., Grant-Weaver, I., Haas-Neill, S., Javed, M.B., Krachler, M., Noernberg, T., Pelletier, R., Zaccone, C. (2016) Trace metals in the dissolved fraction (< 0.45 µm) of the lower Athabasca River: analytical challenges and environmental implications. Science of the Total Environment 580:660-669.

Shotyk, W.,  Appleby, P.G., Bicalho, B., Davies, L., Froese, D., Grant-Weaver, I., Krachler, M., Magnan, G., Mullan-Boudreau, G.; Noernberg, T., Pelletier, R., Shannon, B., van Bellen, S.,Zaccone, C.(2016)  Peat bogs in northern Alberta, Canada reveal decades of declining atmospheric Pb contamination. Geological Research Letters 43(18):9964-9974. DOI: 10.1002/2016GL070952. 

Shotyk, W., Rausch, N., Outridge, P.M., Krachler, M. (2016) Isotopic evolution of atmospheric Pb from metallurgical processing in Flin Flon, Manitoba: Retrospective analysis using peat cores from bogs. Environmental Pollution 218:338-348. DOI: 10.1016/j.envpol.2016.07.009.

Shotyk, W., Rausch, N., Nieminen, T.M., Ukonmaanaho, L. L., Krachler, M. (2016) Isotopic composition of Pb in peat and porewaters from three contrasting ombrotrophic bogs in Finland: evidence of chemical diagenesis in response to acidification. Environmental Science and Technology. 50:9943-9951. DOI: 10.1021/acs.est.6b01076.

Shotyk, W., Bicalho, B., Cuss, C.W., Duke, M.J M., Noernberg, T., Pelletier, R., Steinnes, E., Zaccone, C. (2016) Dust is the dominant source of “heavy metals” to peat moss (Sphagnum fuscum) in the bogs of the Athabasca Bituminous Sands region of northern Alberta. Environment International. 92-93: 494–506.

Zhang, Y., Shotyk, W., Zaccone, C., Noernberg, T., Pelletier, R., Bicalho, B., Froese, D., Davies, L. Martin, J. W. (2016) Airborne petcoke dust is a major source of polycyclic aromatic hydrocarbons in the Athabasca oil sands region. Environmental Science and Technology  4:1711-20. DOI: 10.1021/acs.est.5b05092.

Shotyk, W., Belland, R., Duke, J., Kempter, H., Krachler, M., Noernberg, T., Pelletier, R., Vile, M. A., Wieder, K., Zaccone, C., et al. (2015) Response to Comment on “Sphagnum mosses from 21 ombrotrophic bogs in the Athabasca bituminous sands region show no significant atmospheric contamination of ‘heavy metals’”. Environmental Science and Technology. 49 (10):6354–6357 DOI: 10.1021/acs.est.5b01229.

Shotyk, W., Kempter, H., Krachler, M. and Zaccone, C. (2015) Stable 206Pb, 207Pb, 208Pb and radioactive 210Pb lead isotopes in one year of growth of Sphagnum moss from four ombrotrophic bogs in southern Germany: geochemical significance and environmental implications. Geochimica et Cosmochimica Acta 163:101-125.

Shotyk, W., Belland, R., Duke, M.J., Kempter, H., Krachler, M., Noernberg, T., Pelletier, R., Vile, M.A., Wieder, K., Zaccone, C., and Zhang, S. (2014) Sphagnum mosses from twenty-one ombrotrophic bogs in the Athabasca Bituminous Sands region show no significant atmospheric contamination of “heavy metals”. Environmental Science and Technology 48:12603-12611.

Puglisi, E., Zaccone, C., Cappa, F., Cocconcelli, P.S., Shotyk, W., Trevisan, M., and Miano, T.M. (2014) Changes in bacterial and archaeal community assemblages along an ombrotrophic peat bog profile. Biology and Fertility of Soils 50:815–826.

Biver, M and Shotyk, W. (2013) Stibiconite (Sb3O6OH), senarmontite (Sb2O3) and valentinite (Sb2O3) under environmentally relevant conditions. Geochimica et Cosmochimica Acta 109:268-279.

Huntley, M., Mathewes, R., and Shotyk, W. (2013) High-resolution palynology, climate change, and human impact on a Late Holocene peat bog on Haida Gwaii, British Columbia, Canada. The Holocene 23:1572-1583.

Quinto, F., Hrnecek, E., Krachler, M., Shotyk, W., Steier, P and Winkler, S.R (2013) Measurement of 236U in ancient and modern peat samples, and implications for post-depositional migration of fallout radionuclides. Environmental Science and Technology 47:5243-5250.

Quinto, F., Hrnecek, E., Krachler, M., Shotyk, W., Steier, P and Winkler, S.R. (2013) Analysis of 239Pu, 240Pu, 241Pu and 242Pu at femtogram and attogram levels - evidence for the migration of fallout plutonium in an ombrotrophic peat bog. Environmental Science: Processes and Impacts 15:839-847.

Zaccone, S. Pabst, Senesi, G.S., Shotyk, W., and Miano, T.M. (2013) Comparative evaluation of the mineralogical composition between Sphagnum peat and humic acids, and their relationship with past dust deposition. Quaternary International 306:80-87.

Biver, M. and Shotyk, W. (2012) Experimental Study of the Kinetics of Ligand-Promoted Dissolution of Stibnite (Sb2S3) Chemical Geology 294-295: 165-172.

Biver, M. and Shotyk, W. (2012) Experimental study of stibnite dissolution kinetics from pH 1 to 11: Effects of dissolved oxygen, temperature, and alkaline-earth metal cations. Geochimica et Cosmochimica Acta 79: 127-139.

Le Roux, G., Fagel, N, De Vleeschouwer, F., Krachler, M., Debaille, V., Stille, P., Matielli, N., van der Knaap, W.O., van Leeuwen, J.F.N. and Shotyk, W. (2012) Volcano- and climate-driven changes in atmospheric dust sources and fluxes since the Late Glacial revealed using Nd isotope analyses of peat from an ombrotrophic bog, and their impacts on vegetation. Geology 40(4):335-338.

 Zaccone, C., Pabst, S., Miano, T.M., and Shotyk, W. (2012) The fate of mineral particles in bulk peat and corresponding humic acids throughout an ombrotrophic bog profile: Atmospheric dust deposition vs. mineralization process in Functions of Natural Organic Matter in a Changing Environment. Jianming Xu, Jianjun Wu, and Yan He, eds., Springer, New York, pp. 34-36.

Biver, M., Krachler, M., and Shotyk, W. (2011). The desorption of Sb(V) from sediments, hydrous oxides, and clay minerals by carbonate, phosphate, sulphate, nitrate and chloride. Journal of Environmental Quality 40:1143-1152. 

Zaccone, C., Miano, T.M., and Shotyk, W. Interpreting the ash trend along ombrotrophic bog profiles: atmospheric dust depositions vs. mineralization processes. The Etang de la Gruère case study. Plant and Soil (in press). Critical Comment on the paper by J. Leifeld, L. Gubler and A. Grünig. Organic matter losses from temperate ombrotrophic peatlands: an evaluation of the ash residue method. Plant Soil 341:349-361 (2011). 

Outridge P.M., Rausch, N., Percival, J.B., Shotyk W., and McNeely R. (2011). Comparison of mercury and zinc profiles in peat and lake sediment archives with historical changes in emissions from the Flin Flon metal smelter, Manitoba, Canada. Science of the Total Environment 409: 548-563. 

Kempter, H., Krachler, M. and Shotyk, W. (2010) Atmospheric Pb and Ti accumulation rates in Sphagnum mosses from ombrotrophic bogs: dependence upon plant productivity. Environmental Science and Technology 44:5509-5515. 

Martin, R.R. Shotyk, W., Naftel, S.J. Ablett, J.M., and Northrup, P. (2010) Speciation of Antimony In Polyethylene Terephthalate (PET) Bottles using XANES. X-ray Spectrometry (DOI:10.1002/xrs.1241).

Shotyk, W. and Krachler, M. (2010) The isotopic evolution of atmospheric Pb in central Ontario since AD 1800, and its impacts on the soils, waters, and sediments of a forested watershed, Kawagama Lake. Geochimica et Cosmochimica Acta 74:1963-1981. 

Shotyk, W., Krachler, M., Aeschbach-Hertig, W., Hillier, S. and Zheng, J. (2010) Trace elements in recent groundwater of an artesian flow system and comparison with snow: enrichments, depletions, and chemical evolution of the water. Journal of Environmental Monitoring 12:208-217.

Book Chapters


C. Zaccone, S. Pabst, T.M. Miano. and Shotyk, W. (2012)The fate of mineral particles in bulk peat and corresponding humic acids throughout an ombrotrophic bog profile: Atmospheric dust deposition vs. mineralization process in Functions of Natural Organic Matter in a Changing Environment. Jianming Xu, Jianjun Wu, and Yan He, eds., Springer, New York, pp. 34-36.



Shotyk, W. (2012) There Must Be Something in the Water: Natural Variations and Human Impacts on Water Quality in Alberta. Alberta Institute of Agrologists, Edmonton, Alberta, 28pp.

Newspaper and Magazine Articles

Shotyk, W. The pure spring waters of Springwater Township: bringing new meaning to “water quality”. Interactions, The Journal of the Ontario Society for Environmental Education, February 2012, pp 10-13.

Shotyk, W. CLEAN3: Developing a “clean” groundwater research well, for “clean” groundwater to be tested in a “clean” lab, for ultralow concentrations of trace metals. The Source, Spring 2010. WellWise Centre, Oro, Ontario, Canada.

Publications Prior to 2010




Current Research

My main research areas are human impacts on the geochemical cycles of potentially toxic trace elements, including archives of atmospheric change (peat bogs and polar ice cores), fate in soils and sediments, and impacts on natural freshwaters. Read more ...


The SWAMP lab is concerned with environmental quality in its broadest sense: the quality of our soil resources, the water we drink, the air we breathe, and the food we eat. The research lab is a unique state-of-the-art, metal-free, clean-lab and analytical facility. Read more ...


I am the President of the Elmvale Foundation, a Canadian, federally registered charity for environmental science education which I created in 2007. The main public education initiative of this Foundation is the Elmvale Water Festival which uses the water emanating from artesian springs in the Elmvale area as a tool for environmental education.

Contact Me

Prof. William Shotyk
348 B South Academic Building

Tel.: 780-492-7155
Fax: 780-492-4323

Office Hours:
By appointment

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