Expertise:
Dr. Krol has expertise in the extraction and analysis of pesticide residues, natural products and toxins found in food and environmental matrices.  Dr. Krol’s primary duties are focused upon to implementing, analyzing, compiling and reporting data pertaining to the monitoring of pesticide residues found in food sold within the State.  This work requires close collaboration with the Connecticut Department of Consumer Protection and the Food and Drug Administration who are responsible for obtaining samples for analysis and enforcing violations when found.  Annual reports of the findings are published on the Connecticut Agricultural Experiment Station (CAES) website.

Professional career:
The Connecticut Agricultural Experiment Station 1998-Present
1998-2014      Assistant Agricultural Scientist II

2014-present   Associate Agricultural Scientist

The American Cyanamid Company 1993–1998
1998   Senior Research Chemist I, Radio-Tracer Synthesis
1997   Research Chemist II, Radio-Tracer Synthesis
1993   Research Chemist I, Radio-Tracer Synthesis

Education:
Postdoctoral Research Fellow, The Memorial Sloan-Kettering Cancer Center 1991-1993
Ph.D. in Organic Chemistry, The Johns Hopkins University 1991
B.S. in Chemistry, The University of Connecticut 1984

Past research:
My past research has focused on 1) Reduction of pesticide residue exposure in food through consumer preparation, 2) Non-dietary pesticide exposure through dermal contact, 3) Pesticide residues found post mortem in birds collected throughout Connecticut, 4) The production of biodiesel production from Connecticut grown soybean and canola, and 5) Monitoring of pesticides applied in the state’s lakes.

Current research:
My current research is focused on applications of the Quick Easy Cheap Effective Rugged and Safe (QuEChERS) extraction method to food and environmental samples.

Professional activities and recognition:
Presented an FDA Group Recognition Award in 2011
Member International Union of Pure and Applied Chemistry (IUPAC)
Member Association of Public Health Laboratories (APHL)
25 year Member American Chemical Society (ACS)
Secretary ACS New Haven Section 2005 – 2012
Member Association of Official Analytical Chemists (AOAC)
Postdoctoral Research Fellowship MSCKK, 1991 – 1993
Graduate Research Fellow Johns Hopkins University, 1984 - 1991

Selected Publications:  (for full list, please contact Walter.Krol@ct.gov)

1. Krol, W.J.; Eitzer, B.D.; Arsenault, T.; Sloan, E., White, J.C. Pesticide Residues in Produce Sold in Connecticut in 2012.  Connecticut Agricultural Experiment Station Technical Bulletin.  In review.

2. Krol, W.J.; Eitzer, B.D.; Arsenault, T.; Incorvia-Mattina, M.; White, J.C. Significant Improvements in Pesticide Residue Analysis in Food Using the QuEChERS Method. LC/GC North America In press.

3. Krol, W.J.; Eitzer, B.D.; Arsenault, T.; Fontana, J.; Kinney, S.; Sloan, E.; White, J.C. Pesticide Residues in Produce Sold in Connecticut in 2011 with Concurrent Surveillance for Microbial Contamination.  Connecticut Agricultural Experiment Station Technical Bulletin.  In review.

4. Krol, W.J.; Eitzer, B.D.; Arsenault, T.; Fontana, J.; Kinney, S.; White, J.C.  2011.  Pesticide Residues in Produce Sold in Connecticut in 2010 with Concurrent Surveillance for Microbial Contamination. Connecticut Agricultural Experiment Station Technical Bulletin 6.

5. Krol, W.J. 2011.  ’Catching’ Pesticide Residues in the Food We Eat.  SANCTUARY Newsletter of the White Memorial Conservation Center Vol. XXIX No. 2, Spring.

6. Gratz, S.; Mohrhaus, A.; Gamble, B.; Gracie, J.; Jackson, D.; Roetting, J.; Ciolino, L.; McCauley, H.; Schneider, G.; Crockett, D.; Krol, W.; Arsenault, T.; White, J.; Flottmeyer, M.; Johnson, Y.; Heitkemper, D.; Fricke, F. 2010.  Screen for the Presence of Polycyclic Aromatic Hydrocarbons in Select Seafoods Using LC-Fluorescence”,. Laboratory Information Bulletin (LIB) FDA/ORA/DFS No. 4475.

7. Gratz S.; Ciolina, L.; Mohrhaus, A.; Gamble, B.; Gracie, J.; Jackson, D.; Roetting, J.; McCauley, H.; Heitkemper, D.; Fricker, F.; Krol, W.; Arsenault, T.; White, J.C.; Flottmyer, M.; Johnson, Y. 2011.  Screening and determination of polycyclic aromatic hydrocarbons in seafoods using QuEChERS based extraction and high performance liquid chromatography with fluorescence detection. J. AOAC Int. 94(5):1601-1616.

8. Krol, W.J.; Eitzer, B.D.; Arsenault, T.; White, J.C.  2011. Pesticide Residues in Produce Sold in Connecticut 2009. Connecticut Agricultural Experiment Station Technical Bulletin 5.

9. Krol, W.J.; Eitzer, B.D.; Mattina, M.J.I.; Arsenault, T. 2010. Pesticide Residues in Produce Sold in Connecticut in 2008.  Connecticut Agricultural Experiment Station Technical Bulletin 3.

10. Krol, W.J.; Eitzer, B.D.; Mattina, M.J.I.; Arsenault, T.  2010.  Pesticide Residues in Produce Sold in Connecticut 2007. Connecticut Agricultural Experiment Station Bulletin 1024.

11. Riggs, A.G.; Borth, D.M.; Tutty, D.G.; Wu, W.S.;  Collaborators:  Barclay, B.; Bertrand, N.; Burns, A.; Cassidy, P.; Cobra, J.; Krol, W.; LaForge, R.; Phillips, T; Podhorniak, L.; Rains, D.; Rose, J.; Simmons, C.; Summer, S. 2008.  Determination of Hydrazine in Maleic Hydrazide Technical and Pesticide Formulations by Gas Chromatography:  Collaborative Study.  J AOAC Int., 91 (1), 5-12.

12. Krol, W.J.; Eitzer, B.D.; Mattina, M.J.I; Arsenault, T.  2007. Pesticide Residues in Produce Sold in Connecticut 2006.  Connecticut Weekly Agricultural Report, Vol. LXXXVII, (46).

13. Krol, W.J.; Eitzer, B.D.; Arsenault, T.; Mattina, M.J.I. 2007.  Pesticide Residues in Produce Sold in Connecticut 2006 Including a Comparison of Two Sample Preparation Methods. Connecticut Agricultural Experiment Station Bulletin 1012.

14. Krol, W.J.; LaMondia, J.A. 2006.  An Evaluation of Connecticut Grown Canola and Soybean as a Biodiesel Fuel Supplemental Energy Source for Connecticut Consumers.  Connecticut Weekly Agricultural Report, Vol. LXXXVI, (40).

15. Krol, W.J.; Arsenault, T.; Mattina, M.J.I. 2006.  Pesticide Residues in Produce Sold in Connecticut 2005.  Connecticut Agricultural Experiment Station Bulletin 1006.

16. Krol, W.J.  2006.  Food Analysis at The Connecticut Agricultural Experiment Station. Frontiers of Plant Science, A Report From the Connecticut Agricultural Station, Vol. 56 (2).

17. Krol, W.J.; Arsenault, T.; Mattina, M.J.I.  2006.  Pesticide Residues in Produce Sold in Connecticut 2002-2004. Connecticut Agricultural Experiment Station Bulletin 1000.

18. Krol, W.J.; Arsenault, T.; Mattina, M.J.I.  2005.  Assessment of Dermal Exposure to Pesticides Under ‘Pick Your Own’ Harvesting Conditions. Bull. Environ. Contam. Toxicol., 75, 211-218.

19. Bugbee, G.J.; White, J.C.; Krol, W.J. 2003.  Control of Variable Water milfoil in Bashan Lake, CT with 2,4-D:  Monitoring of Lake and Well Water.  J. Aquat. Plant Manage., 41, 18-25.

20. Krol, W.J.; Arsenault, T.; Mattina, M.J.I.  2002.  Persistent Organochlorine Pesticide Contamination of Birds Collected in Connecticut During the Year 2000. Bull. Environ. Contam. Toxicol., 69, 452-458.

21. Krol, W.J.; Arsenault, T.; Mattina, M.J.I.  2002.  Pesticide Residues in Food Sold in Connecticut 2001. Connecticut Agricultural Experiment Station Bulletin 981.

22. Krol, W.J.; Arsenault, T.; Mattina, M.J.I.  2001.  Pesticide Residues in Food Sold in Connecticut 2000. Connecticut Agricultural Experiment Station Bulletin 971.

23. Krol, W.J.; Arsenault, T.; Mattina, M.J.I.  2000.  Pesticide Residues in Food Sold in Connecticut 1999. Connecticut Agricultural Experiment Station Bulletin 964.

24. Krol, W.J.; Arsenault, T.L.; Pylypiw Jr., H.M.; Mattina, M.J.I. 2000.  Reduction of Pesticide Residues on Produce by Rinsing.  J. Ag. Food Chem., 48 (10), 4666 -4670.

25. Krol, W.J.; Arsenault, T.; Pylypiw Jr., H.M.; Mattina, M.J.I.  1999.  Pesticide Residues in Food Sold in Connecticut 1998. Connecticut Agricultural Experiment Station Bulletin 954.