Tel: (403) 286 7706

Equilibrium Environmental Inc.

Profile

Publications and Presentations

Knafla, A., Huber, G., Ranganathan, S. 2012. SST Version 2.5.3 – Refinement in Guideline Calculation and Functionality, Implications for Salt Impacted Site Remediation. (Presented at: 2012 PTAC Soil & Groundwater Forum Session).

Cull, K., Adams, A., Murimboh, J., Knafla, A., White, L. 2012. Evaluation of Biomarkers of Exposure to Arsenic from Well Water in Two Rural Nova Scotian Communities. (Presented at: 2011 94th Canadian Chemistry Conference).

Prediger, T., Knafla, A., Cook, N. 2012. Soil Selenium Toxicity to Medicago sativa and the Hormetic Effect of Sulfate. (Presented at Alberta Innovates Technology Futures, January 11, 2012).

Prediger, T., Knafla, A., Woosaree, J. 2012. Considerations for Soil Selenium Guidelines and Results of Initial Plant Toxicity Testing (in preparation for RemTech 2012 Remediation Technologies Symposium, Banff).

Huber, GJ, Knafla, A., Vickerman, L., Bell, G. 2012. Progress Toward Subsoil SAR Guidelines: Synthesis of Leaching Column and Transport Modeling Work. (Poster presentation at the March 2012 PTAC Soil and Groundwater Forum, Calgary).

Huber, GJ, Knafla, A., Vickerman, L., Bell, G. 2012. Summary of Research on Sulfate Behavior in Soil and Groundwater: Implications for Subsoil Sulfate Guideline Development. (Presentation at the March 2012 PTAC Soil and Groundwater Forum, Calgary).

Lintott, D, Huber, GJ, Knafla, A., 2012. Progress Toward Boron Guideline Development: Update on Boron Toxicity Testing Results for Agricultural Soils plying Boron Research to Contaminated Sites (Presentation at the March 2012 PTAC Soil and Groundwater Forum, Calgary).

Campbell, J., Knafla, A., White, L., J., Murimboh, J., Dann, A., Parfett, A. 2012. Evaluation of genetic damage levels in a rural Canadian population as a function of arsenic concentrations in water. (in preparation).

Knafla, A., Campbell, J., White, L., J., Murimboh, J., Dann, A., Parfett, A. 2012. Evaluation of genetic damage levels in a rural Canadian population as a function of arsenic biomarker and excreted concentrations. (in preparation).

Samanani, N., Knafla, A., Campbell, J. 2012. Development of an improved method for measuring genetic damage levels in buccal and exfoliated bladder cells via the Comet Assay. (in preparation).

Ranganathan, S. and Knafla, A. 2012. Tier 2 Hydrocarbon Guideline Calculator (PTHC Version 1.0). Software Release and Demonstration. (Presented at: 2012 PTAC Soil & Groundwater Forum Session).

Knafla, A., Petrovic, S., Richardson, M., Campbell, J., Rowat, C. 2011. Development and application of a skin cancer slope factor for exposures to benzo[a]pyrene in soil. Regulatory Toxicology and Pharmacology, 59, 101-110.

Knafla, A.L. and S.H. Roth. 2012. Inhibition of 2,5-Hexanedione Formation in Sprague Dawley Rats Following Inhalation Exposure to a Commercial Hexane Mixture or Pure N-Hexane. (in preparation).

Knafla, A.L. and S.H. Roth. 2012. Improved Techniques for Detecting Low Level ppb Concentrations of Gamma Diketones in Blood and Brain Tissue. (in preparation).

Knafla, A., Healey, N., Richardson, M., Brewer, K. 2012. The Toxicological Significance of a 1% Benchmark Response in Population Mean Blood Pressure. (in preparation).

Knafla, A., Campbell, J., Healey, N., Wilson, R., Brewer, K., Richardson, M. 2012. Biokinetics of Lead in Children in Support of the Development of a Preliminary Tolerable Daily Intake: A Review of Pb Toxicokinetics and Toxicokinetic Models. (in preparation).

Huber, GJ, Knafla, A., 2011. Effects of SAR/EC Combinations on Hydraulic Conductivity and Water Transport: Implications for Subsoil SAR Guideline Development Work. (Presentation at the March 2011 PTAC Soil and Groundwater Forum, Calgary).

Huber, GJ, Knafla, A., Bacchus, P., Sabo, E., 2011. Study of the Fate and Transport of Calcium Sulfate (Gypsum) Concentrations in Shallow Soil. (Poster presentation at the March 2011 PTAC Soil and Groundwater Forum, Calgary).

Huber, GJ, Knafla, A., Vickerman, L., 2011. Progress Toward Updated Subsoil SAR Remediation Guidelines Below the Root-Zone. (Presented at RemTech 2011 Remediation Technologies Symposium, Banff).

Huber, GJ, MacDonald, J., Knafla, A., 2011. Applying Boron Research to Contaminated Sites (Presented at Imperial Oil 2011 Surplus Property Management (SPM) Conference, Calgary).

Lintott, D, Huber, GJ, Knafla, A., 2011. Progress on Boron Guideline Development: Update on Toxicity Testing and Methodology (Poster presentation at the March 2011 PTAC Soil and Groundwater Forum, Calgary).

Knafla, A., Hays, S., Campbell, J., Morden, M. 2011. Assessment of Benzene Shower Exposure – Implications for Soil & Water Quality Guideline Development. Poster Presentation – Abstract Number/Poster Board Number: 1266/837. Society of Toxicology (SOT) 50th Annual Meeting, Washington, DC.

Knafla, A. 2011. Subsoil Salinity Tool Introduction. (Presented at: Environmental Interactive Club, Calgary, AB.)

Ranganathan, S., Knafla, A. 2011. Petroleum Hydrocarbon Tier 2 Remediation Guideline Calculation Software. (Presented at: Remtech 2011, Banff, AB).

Knafla, A. 2011. Inhaled n-Hexane – Human Health Risks and Emerging Guidelines. (Presented at: CPANS 2011 Annual Conference Exploring Emerging Air Issues in Alberta).

Knafla, A., Hays, S. 2011. Assessment of Shower Exposures - New Health Canada Pathway for Guideline Development – Case Study with Benzene Sourced from Groundwater (Presented at: WaterTech 2011, Banff, AB).

Ranganathan, S., Knafla, A. 2011. Petroleum Hydrocarbon Tier 2 Remediation Guideline Calculation Software. (Presented at RemTech 2011 Remediation Technologies Symposium).

Knafla, A., Huber, GJ. 2011. Effects of SAR/EC Combinations on Hydraulic Conductivity Implications for Subsoil SAR Guideline Development (Presented at: Exova Environmental Seminar 2011).

Knafla, A. 2010. Recent Developments/Revisions to the Contractor Report Prepared by A. Knafla on upcoming Soil and Dust Quality Guidelines for lead (Pb). (Presented to the Canadian Council for Ministers of the Environment, Banff, AB).

Knafla, A., Hays, S. 2010. Results from the Assessment of Shower Exposures to Benzene Sourced from Groundwater and Implications for Guideline Development. (Presentation at the March 2010 PTAC Soil and Groundwater Forum).

Huber, GJ, Vasilakos, K, Knafla, A. 2010. Effects of SAR on Hydraulic Conductivity and the Influence of Test Methods, EC, and Soil Compaction: Implications for Subsoil SAR Guideline Development Work. (Presentation at the March 2010 PTAC Soil and Groundwater Forum).

Huber, GJ, Knafla, A., 2010. Fate and Transport and Sodium Chloride, Calcium Sulphate (Gypsum), Sodium Sulphate, and Boron in Soil and Implications for Guideline Development Work. (Presentation at the March 2010 PTAC Soil and Groundwater Forum).

Huber, GJ, Chidlaw, T., Knafla, A. 2009. Boron Soil Quality Guidelines Re-evaluation. (Presentation at the Maxxam Spring Workshop, Mississauga).

Gibson, M., Guernsey, J., White, L., Knafla, T., Parsons, M., Dabek-Alotorzynska, E., Celo, V., King, G. 2009. Off-Site Fate and Transport of Airborne Arsenic-Laden PM2.5 from a Historic Gold Mine Tailings Site to Nearby Properties in Nova Scotia. (CMOS Congress 2009, Halifax, NS)

Huber, GJ, Knafla, A. 2009. Boron Research Project Updates (Presentations at the PTAC Boron Working Group meetings, Februrary 2008 – December 2009).

Huber, GJ, Knafla, A. 2009. Boron Soil Quality Guidelines Re-evaluation. (Presentation at the March 2009 PTAC Soil and Groundwater Forum).

Knafla, A., Huber, GJ, Ranganathan, S. 2009. Subsoil Salinity Tool Refinement and Introduction to Course Curriculum (Presentation at the March 2009 PTAC Soil and Groundwater Forum).

Huber, GJ, Knafla, A. 2009. History of the Boron Soil Quality Guideline and Why it Needs to be Re-Evaluated. (Presentation at the January 2009 Bodycote Environmental Seminar, Calgary & Edmonton).

Huber, GJ, Knafla, A. 2009. Evaluating Boron Risk to Environmental Receptors for Guideline Development. (Presentation at the February 2009 CLRA Conference and Annual General Meeting).

Knafla, A., Carey, J. 2009. Development of a Shower Exposure Model for Benzene – Background Work for Potential Recommended Update to the Recently Derived Drinking Water Guidelines (Presentation at the March 2009 PTAC Soil and Groundwater Forum).

Knafla, A, Carey, J. 2009. Lead (Pb): Upcoming Implications for Contaminated Sites Guidelines and Risk of Decreased Intelligence and Increased Coronary Heart Disease. (Presentation at the March 2009 CLRA conference).

Carey J, Knafla A. 2009. n-Hexane, Why is a Separate Guideline Being Developed and Why is it Being Considered for Oil and Gas Impacted Sites. (Presented at the March 2009 Petroleum Technical Alliance Canada Soil and Groundwater Forum and Poster Session).

Mitchell I, Knafla A, Carey J, Williams D, Yole M, Smith L. 2008. Development of a Human Health Soil Quality Guideline for n-Hexane. (Poster presentation at the April 2008 RPIC Federal Contaminated Sites National Workshop & Expo).

Knafla A, Petrovic S, Carey J, Rowat C, Richardson M. 2008. Dermal Cancer Risk Associate with Benzo[a]pyrene Soil Exposures Expressed on a Per Unit Surface Area Basis. (Poster presentation at the April 2008 RPIC Federal Contaminated Sites National Workshop & Expo).

Knafla, A. 2008. Subsoil Salinity Tool Tier II Applications, Investigation Requirements, Assumptions, and Training. (Presentation at the March 2008 CLRA Conference).

Knafla, A. 2008. Subsoil Salinity Tool (SST) Overview, Applications, Investigation Requirements, Regulatory Status (Presentation to the Canadian Association of Petroleum Producers).

Huber, GJ, Knafla, A. 2008. New Findings Towards Boron Soil Criteria Adjustment. (Presentation at the March 2008 PTAC Soil and Groundwater Forum).

Ranganathan, S, Knafla, A. 2008. Human Health Risk Associated with n-Hexane at Oil and Gas Facilities – A New Contaminant to be Evaluated at Contaminated Sites. (Presentation at the March CLRA conference).

Huber, GJ, Knafla, A. 2008. A Comparison of Boron Testing Methods for Risk Assessment and Remediation. (Presentation at the February 2008 CLRA Conference and Annual General Meeting).

Carey, J, Knafla, A, 2007. Modernized Approach for the Remediation of Boron and Salt Impacted Soils. (Presentation at the August 2007 CLRA conference, Halifax, NS).

Knafla, A. 2007. Modernized Approach for Salt Impacted Soils: Final Results and Conclusions (Presentation at RemTech 2007, Remediation Technologies Symposium).

Knafla, A, Stokes, D. 2006. Modernized Approach for the Remediation of Salt Impacted Soils. (Presentation at RemTech 2006, Remediation Technologies Symposium).

Knafla A., Phillipps, K., Brecher, R., Petrovic, S., Richardson, M. 2006. Development of a dermal cancer slope factor for benzo[a]pyrene. Regulatory Toxicology and Pharmacology. 45, 159-168.

Wright, M, Knafla, A. 2005. Integrated Remediation Approach at a Former Chemical Blending Facility: Excavation, Dual-Phase Extraction and Site-Specific Risk Assessment (Presentation at Remtech 2005, Remediation Technologies Symposium).

Knafla, A. 2004. Town of Cochrane Public Hearing. Risk Assessment of Human Health Risks Associated with Creosote and CCA Soil and Groundwater Impacts at the Proposed Multi-Family Dwelling Located in Cochrane, Alberta. (Completed on behalf of BRISBIN & SENTIS Engineering Inc.)

Knafla, T., Stein, W., Sevigny, J., and Serbin, L. 1999. Measurement of Subsurface Hydrocarbon Vapours at Upstream Oil and Gas Sites: Implications for Risk Assessment. (26th Aquatic Toxicity Workshop. Edmonton, AB).

Knafla, T., Oishi, C., Bowles, M., and Brewster, M. 1999. Multidiciplinary Approach for Evaluation of Salt Impacts on Wetland Ecosystems. (26th Aquatic Toxicity Workshop. Edmonton, AB).

Robins, G.L., Knafla., T.L., and Sevigny, J.H. 1999. Risk Assessment of Contaminated Sites in Northern Environments: Challenges to Conventional Risk Assessment. (26th Annual Aquatic Toxicity Workshop, Canadian Technical Report of Fisheries and Aquatic Species.

Robins, G.L., Knafla., T.L., and Sevigny, J.H. 1999. New Challenges Associated with Risk Assessment of Contaminated Sites in Northern Environments. (Assessment and Remediation of Contaminated Sites in Arctic and Cold Climates, ARCACC).

Sevigny, J.H., Knafla, T.L., Tindal, M.J., and Robins, G.L., 1998. The Importance of Volatile Aliphatic Hydrocarbons in Human Health Risk Assessment: Examples from Gasoline Stations in Western Canada. (Presented to Alberta Environmental Protection, Edmonton, AB).

Knafla, T. L., Sevigny J. H.. 1997. Assessment of human health risks from a light condensate plume migrating towards a rural residential development. In: Niimi, A., J., Parrott., J.L., Spry, D.J. eds. Proceedings of the 24th Annual Aquatic Toxicity Workshop. October, Niagara Falls, ON).

Knafla, T. L. and Sevigny, J. H., 1997. Remedial costing of a large oil and gas property transfer using generic Tier II criteria. (Canadian Prairie & Northern Section Air & Waste Management Association. Risk Based Approaches for Managing Environmental Issues for the Oil and Gas Industry. April 25, 1997. Kananaskis, AB).

Brown, G., Knafla, T. L., and Nerbas, M. 1996. Development of risk-based clean-up criteria at a wellsite in Alberta. (Society of Petroleum Engineers. International Conference on Health, Safety and Environment, New Orleans, Louisiana June 9-12, 1996).

Knafla, T. L., Treissman, D., and Davies, D. 1995. Risk Assessment for petroleum storage tank (PST) sites: a consultants perspective. (Groundwater Solutions, Edmonton, AB).

Ross, S.D., Rathgeber, J., Knafla, T., Hardisty, P. 1995. Choosing a Remediation Technology. (Presented at: Environment Council of Alberta Conference).

Government Contract Reports

Knafla, A., Campbell, J., Wilson, R., Healey, N., Kennepohl, E. 2011. Evaluation of Potential Effects of Short-Term Exposure to Substances at Contaminated Sites and Development of Recommendations on Exposure Amortization for Non-Carcinogenic Substances. Prepared for Health Canada under contract to Health Canada.

Healey, N., H. Jones‐Otazo, M. Walker & A. Knafla. 2010. Toxicological Review and Recommended 10 Toxicological Reference Values for Environmental Lead Exposure in Canada. FINAL REPORT. 11 Prepared under contract to Health Canada. Prepared for the Contaminated Sites Division, Safe 12 Environments Directorate, Healthy Environment and Consumer Safety Branch, Health Canada, 13 Ottawa.

Knafla, A. 2010. Review and Update of the Document Canadian Soil Quality Guidelines for Contaminated Sites – Human Health Effects: Inorganic Lead (1996 Report) and Derivation of Human Health-Based Indoor Settled Dust Screening Concentrations for Inorganic Lead. Prepared for Health Canada under contract to Health Canada.

Knafla, A., Campbell, J. 2010/2009. Pilot Study for Biomonitoring of Arsenic (As) Species in Rural Nova Scotia Communities. Sample collection and assessment of levels of genetic damage via Comet and Micronuclei assay. Prepared for Health Canada under contract to Health Canada.

Guernsey, J., Knafla, T., Gibson, M., Parsons, M., King, G., Dabek-Zlotorzynska, E., Celo, V. 2009. Project Title: A Pilot Study of the Off-Site Transport of Arsenic Associated Fugitive PM2.5 Emissions from Montague Gold Mine Tailings, Nova Scotia on Communities Directly Downwind of the Site. Prepared for Health Canada under contract to Health Canada.

Knafla, A., Wilson, R., Carey, J. 2009. Toxicity Review of Low Boiling Point Naphthas (LBPNS) for the Petroleum Sector, Chemical Management Plan, Health Canada. Prepared for Health Canada under contract to Health Canada.

Knafla, A., Wilson, R., Carey, J. 2009. Toxicity Review of Gas Oils for the Petroleum Sector, Chemical Management Plan, Health Canada. Prepared for Health Canada under contract to Health Canada.

Knafla, A., Wilson, Kennepohl, E., R., Carey, J. 2009. Toxicity Review of Aromatic Extracts for the Petroleum Sector, Chemical Management Plan, Health Canada. Prepared for Health Canada under contract to Health Canada.

Carey, J., Knafla, A. 2009. Development of a Developmental Toxicity Database for Health Canada. Prepared for Health Canada under contract to Health Canada.

Knafla, A. 2008. Critical Review of Potential Health Effects Associated with Lead (Pb) Final Report. (Prepared for Health Canada under subcontract to URS Canada Inc. HECS-SEP-BC/Yukon 05/06-22).

Knafla, A., Carey, J. 2008. Toxicokinetics of Methyl Mercury. (Prepared for Health Canada under subcontract to GlobalTox International Consultants Inc., 2008).

Knafla, A., Carey, J. 2008. Lead (Pb) Toxicokinetic Modeling in Support of the Development of a Toxicity Reference Value. (Prepared for Health Canada under subcontract to GlobalTox International Consultants Inc., 2008).

Brecher, R.W., T. Knafla, A. Iglesias and J. Carey. 2008. Pharmacokinetics and Toxicology of Inorganic Mercury. Prepared for Health Canada, Bureau of Risk and Impact Assessment. March, 2008).

Knafla, A., Carey, J. 2008. Development of a Serum Toxicity Reference Value for Perfluorooctanoic Acid (PFOA) (prepared on the behalf of Health Canada via subcontract to URS Canada Inc., 2008).

Knafla, A., Carey, J. 2008. Qualitative Human Exposure Assessment Framework for Arsenic in Nova Scotia. Prepared under contract to Health Canada, Halifax, NS.

Ranganathan, S., Knafla, A. 2008. Development of an Ecological Soil Quality Guideline for n-hexane. Prepared for and under contract to Alberta Environment.

Ranganathan, S., Knafla, A. 2008. Development of Ecological Soil Quality Guideline for n-hexane. Prepared for and under contract to Health Canada.

Knafla, A., Ott, C., Carey, J. 2007. Preparation of a Supporting Document for Development of Uncertainty and Modifying Factors for Mercury Vapour (Toxicological Reference Value Section) - In Support of: Scientific Criteria Document for Mercury Vapour (Hg0) (Prepared on the behalf of Health Canada via subcontract to URS Canada Inc.).

Carey J and Knafla A. 2007. Development of a toxicological profile for bisphenol A and interim toxicity reference value for consideration by Health Canada. Equilibrium Enviromental Inc. August 2007.

Carey, J., Knafla, A. 2007. State of the Science Report for a Screening Health Assessment - Perfluorooctanoic Acid (PFOA), its Salts, and its Precursors that Contain the C8F15COOH Moiety. (prepared on the behalf of Health Canada via subcontract to URS Canada Inc. in 2007).

Knafla, A. 2007. Development of an Updated Carcinogenicity Slope Factor Value for Arsenic (completed on behalf of Health Canada under subcontract to URS Canada with contractual specifications that the carcinogenicity work be completed by Anthony Knafla).

Knafla, A., Ott, C., Petrovic, S., Ramji, S., Rowat, C., D. Schoen. 2006. Importance of Carcinogenic Alkyl Substituted and High Molecular Weight Polycyclic Aromatic Hydrocarbons at Contaminated Sites and Update of Toxic Equivalency Factors for Hydrocarbon Mixtures. Book of Abstracts - 2006 Health Canada Science Forum Proceedings.

Knafla, A., Wilson, R. 2006. Preliminary examination of vapour concentration thresholds for adverse effects on the human respiratory system and/or mucosal irritation, and comparison with the existing CCME TRV of 18.4 mg/m3 for the F1 C6 to C8 aliphatic hydrocarbons. Memorandum prepared for CCME Soil Quality Guidelines Task Group Toxicity Reference Value Subgroup. Prepared by A. Knafla (Equilibrium Environmental Inc.) and R. WIlson (Wilson Scientific Inc.). February 7, 2006.

Knafla, A. URS Canada Inc., Equilibrium Environmental Inc. 2006. Effects of Lead - Critical review of potential health effects of lead and analysis of oral dose of blood kinetic for determination of lead tolerable daily intake. Contractor report prepared for Health Canada. Burnaby, BC.

Knafla, A. Equilibrium Environmental Inc. (Equilibrium). 2005. Critical Review and Evaluation of Toxicological Reference Values for Petroleum Hydrocarbon Sub-fractions within Fractions F2, F3 and F4. Report prepared for Environmental Protection Branch, Health Canada, Burnaby, BC. March 29. 8-94

Knafla, A. Equilibrium Environmental Inc. (Equilibrium). 2005. Evaluation of Issues Related to the Development of Updated Petroleum Hydrocarbon Constituent Toxicity Reference Values and Development of an Updated Toxicity Reference Value for C6 to C8 Aliphatic Hydrocarbons. Report prepared in association with GlobalTox Toxicology Focused Solutions and Wilson Scientific Consulting Inc. for Environmental Protection Branch, Health Canada, Burnaby BC. April 25.

Knafla, A., R.W. Brecher and R. Wilson. 2004. Gamma-Diketone-like Toxicity of Components of the F1 Fraction of Peteroleum Hydrocarbons. Prepared for Health Canada.

Peer Reviews - Contracted

Knafla, A. Wilson, R. 2011. Draft Screening Assessment Petroleum Sector Stream Approach. Gas Oil (Site-Restricted). Environment Canada, Health Canada, Published online September 2011.

Knafla, A. Wilson, R. 2010. Draft Screening Assessment Petroleum Sector Stream Approach. Heavy Fuel Oils (Site-Restricted). Environment Canada, Health Canada, Published online May 29, 2010.

Knafla, A. 2010. Peer Review of Toxicological Profile for Phenylhydrazine. (Prepared for URS Canada Inc. on behalf of Health Canada).

Knafla, A. 2010. Peer Review of Toxicological Profile for Azobenzene. (Prepared for URS Canada Inc. on behalf of Health Canada).

Knafla, A. 2010. Peer Review of Toxicological Profile for 4-Dimethylaminoazobenzene. (Prepared for URS Canada Inc. on behalf of Health Canada).

Knafla, A. 2010. Peer Review of Toxicological Profile for Aromatic Glycidyl Ethers. (Prepared for URS Canada Inc. on behalf of Health Canada).

Knafla, A., Carey, J. 2010. Literature Searches for Toxicological Information for Nitrates, Hydroxylamines, and Per Borate. (Prepared for Wilson Scientific Inc. on behalf of Health Canada).

Knafla, A., Carey, J. 2010. Literature Searches for Toxicological Information for Urethane, Chrysene, and Congo Red. (Prepared for Wilson Scientific Inc. on behalf of Health Canada).

Knafla, A., Huber, G., Campbell, J. 2010. Peer Review of the CCME Draft Aquatic Life Chloride Guideline. (Prepared for the Canadian Association of Petroleum Producers).

Knafla, A. 2009. Member of the Independent Expert Review Panel (IERP) Human Health Risk Assessment for Flin Flon, Manitoba and Creighton, Saskatchewan. Volume II. June 23-24, 2009. Winnipeg, MB.

Ranganathan, S., Knafla, A. 2009. Mountain View County Council Meeting. Presentation: Didsbury Shop Site – Screening Level Risk Assessment and Risk Management of Salinity Impacts. April, 2009.

Knafla, A. 2009. Peer Review of Toxicological Profile for Salts of Silicic Acid. (Prepared for URS Canada Inc. on behalf of Health Canada).

Knafla, A. 2009. Peer Review of Toxicological Profile for Sulphites. (Prepared for URS Canada Inc. on behalf of Health Canada).

Knafla, A. 2009. Peer Review of Toxicological Profile for Diethyl Carbonate. (Prepared for URS Canada Inc. on behalf of Health Canada).

Knafla, A. 2009. Peer Review of Toxicological Profile for 2-Ethylhexanol. (Prepared for URS Canada Inc. on behalf of Health Canada).

Knafla, A. 2009. Peer Review and Summary of Issues regarding n-Hexane and Guideline Development. (Prepared for the Canadian Association of Petroleum Producers).

Knafla, A., Carey, J. 2008. Supplemental Guidance: A Review, Critique and Expansion of the Proposed Health Canada Lead Monitoring Study Protocol for the Purpose of Assessing the Potential Adverse Health Impacts Resulting from the Exposure of Canadians to Lead in and Around Racing Venues Using Leaded Fuels. Prepared for Health Canada under contract to Health Canada.

Knafla, A. 2007. Peer Review of Health Canada Benzene in Drinking Water – Document for Public Comment Prepared by the Federal-Provincial-Territorial Committee on Drinking Water. Prepared for the Canadian Association of Petroleum Producers.

Knafla, A.L., Ritter, L., Zapf-Gilje, R. 2006. Consensus Report of the Peer Review Panel for Task 3A-2 “Human Health Risk Assessment for Current Exposures to Herbicides and Herbicide Related Chemicals at CFB Gagetown, Oromocto, New Brunswick. June, 2006. Prepared under contract to Health Canada.

Knafla, A. 2005. Expert Review of a Human Health Risk Assessment and Provision of Scientific Support Regarding a Refinery Expansion in Northern Alberta. (Completed on behalf of the Alberta Energy and Utilities Board).

-->