Rob Stewart

Rob Stewart

Rob Stewart

Industrial Processes and Abatement Knowledge Leader

Rob is an industrial chemist by training and is a specialist in industrial process and abatement technology. He has over two decades of experience in environmental consultancy. Much of this time was dedicated to providing Integrated Pollution Prevention and Control (IPPC) permitting support and guidance to industry and regulators. Rob has significant experience in the characterisation of emissions from industrial processes and has provided consultancy on combustion emissions and emissions measurement to governments, regulators and industry in the UK and internationally. Rob’s expertise has been critical to the UK National Atmospheric Emissions Inventory where he has developed improved pollutant emission factors for various industrial and other activities, particularly for combustion processes. Rob has revised the United Nations Economic Commission for Europe (UNECE) guidebook on emission inventories and projections – initially to include particle matter of less than 10 microns in diameter (PM10) and 2.5 microns (PM2.5) in the guidebook, but also as part of a major revision to the combustion chapters to align these with IPCC guidance on greenhouse gas inventories. He has provided support to the numerous national and city-scale governments on the potential air quality impacts of increased biomass use for heating. He has also provided support to the European Commission on proposals to modify the IPPC Directive by assessing the impacts and benefits of simplifying the Titanium Dioxide Directives and extending the IPPC threshold to include 20MWth – 50MWth energy installations.