Dr Iain Cowan is a Technical Director with Zephyr Environmental and has more than 25 years' experience in atmospheric dispersion modelling of a wide variety of industrial emissions from mines to power stations, landfills to goat farms and everything in between. Iain has extensive expertise in odour assessments, atmospheric dispersion modelling of stack and fugitive emisions, emissions monitoring, experiment design, ambient monitoring and the use of prognostic meteorological modelling using the latest available models and datasets.