Research

I am an experienced environmental analytical scientist with a strong background in statistical treatment of data. I have significant field experience in developing and deploying analytical instrumentation in the High Arctic.

Currently, I am interested in statistical analysis of medium sized data sets (up to 500,000 observations), including multivariate data analysis of partially dichotomous data. I am very much interested interpreting measurement data for the application and validation of atmospheric chemistry models. My main statistical tools for data analysis are Matlab and R.

My current research at Concordia University in Montreal, Canada focuses on long-term observations of urban pollutants in major Canadian cities and includes statistical analysis of 1o+ year pollution data and atmospheric modelling using the MECCA/CAABA box model.

On the instrumental side, I am developing field deployable sensors to track urban air pollution, with a focus on organics. Lab-based reference measurements are developed on a GC-MS. The goal is to track local pollution sources and transport and accurately measure actual exposure levels in real-time.

I was chapter lead and main author of the (peer-reviewed) Canadian Mercury Science Assessment, responsible for the Emissions Chapter, which was published recently. I took on this project as a result of a previous collaboration with Environment and Climate Change Canada, focusing on modelling of mercury transport in the atmosphere and validation with observations from AMNet stations.

I was a collaborator on the (now completed) EU funded FP7 MYCOSPEC project, where I performed multivariate modelling of mid-infrared data for classification of contaminated agricultural commodities. This included non-parametric machine learning algorithms such as bagged decision trees. Current collaborations that emerged from this work include the statistical analysis of mycotoxin concentrations from a global survey and a meta–analysis of occurrence data provided by the European Food Safety Authority (EFSA).

I also investigated the exchange of volatile organic compounds between snow and air. I employed GC-FID and GC-MS for field and lab based measurements and successfully deployed a GC-FID system in Alert, NU in 2006. Another field trip to Barrow, AK followed in 2009, where I participated in an IPY OASIS initiative. I now continue this work in an urban setting in a greater effort to trace local pollution levels.

My experience as a Manager for Analytics at Sixtron Advanced Materials in Dorval, Quebec in 2009 and 2010 included analytical development & process monitoring using GC-TCD/FID/MS. I performed and coordinated validation and data analysis from TGA, DSC, XRF, particle size measurements. I also was project manager for equipment deployment at a prospective Chinese customer.

If you want to know more… contact me.