Dr Lang Tran

Head of Toxicology Section – Principal Toxicologist

Institute of Occupational Medicine
8 Roxburgh Place

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Research Expertise


The UK Department for International Development (DfID) commissioned the Institute of Occupational Medicine to conduct toxicological tests to determine the relative safety of the Montserrat volcanic ash. These included an inhalation experiment conducted in rats by IOM. This experiment was designed by Dr Lang Tran with the objective of testing the null hypothesis that, dose for dose, inhaled volcanic ash causes no greater pulmonary inflammation than a benchmark, low toxicity, control dust.


Relevant Publications


Monteiro-Riviere, N.A., & Tran, C.L. (2007) Nanotoxicology: characterization, dosing and health effects. New York: Informa.

Donaldson, K, Borm, P.J.A., Oberdoerster, G., Pinkerton, K.E., Stone, V., & Tran, C.L. (2007) ‘Concordance between in vitro and in vivo dosimetry in the pro-inflammatory effects of low toxicity, low solubility particles: the key role of the proximal alveolar region’, Inhalation Toxicology, 20:53 – 62.

Duffin, R., Tran, L., Brown, D., Stone, V., & Donaldson, K. (2007) ‘Pro inflammogenic effects of low-toxicity and metal nanoparticles in vivo and in vitro: highlighting the role of particle surface area and surface reactivity’, Inhalation Toxicology, 19: 849-856.

Kuempel, E.D., Tran, C.L., Castranova, V., & Bailer, A.J. (2007) ‘Response to Dr Norfeld’s letter’, Letter. Inhalation Toxicology, 19, 197-198.

Cullen, R.T., Jones, A.D., Miller, B.G., Donaldson, K., Davis, J.M.G., Wilson, M., and Tran, C.L. (2002) ‘Toxicity of volcanic ash from Montserrat’, Institute of Occupational Medicine, Edinburgh, Report No. TM/02/01, pp. 55.

Tran, C.L., Buchanan, D., Cullen, R.T., Searl, A., Jones, A.D., and Donaldson, K. (2000) ‘Inhalation of poorly soluble particles. II. Influence of particle surface area on inflammation and clearance’, Inhalation Toxicol., 12, 1113-1126.

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Latest News


Download our pamphlets on preparing for ashfall and on the health hazards of ash. They are designed for mass distribution at the onset of new eruptions. They are now avaiable in English, Japanese, French Spanish, Portuguese, Swahili, Indonesian and Icelandic with Italian versions being available shortly. Please see our Pamphlets page for further infomation.





IVHHN has an article under the Guidelines tab which used to be called 'Recommended Face Masks'. This has now been updated to 'Information on face masks' and is an interim page whilst the Health Interventions in Volcanic Eruptions project investigates which types of respiratory protection are effective in protecting the general population from volcanic ash inhalation. Please note that the translations in Spanish, Japanese and Portuguese have not yet been updated.



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