Research Topics
| Leonard J S TsujiSummaryAffiliation: University of Waterloo Country: Canada Publications
| Collaborators
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Detail Information
Publications
Foil backing used in intraoral radiographic dental film: a source of environmental leadLeonard J S Tsuji
Department of Environment and Resource Studies, University of Waterloo, Waterloo, Ontario
J Can Dent Assoc 71:35-8. 2005..Although the amount of lead introduced into the oral cavity would be relatively small, the elimination of sources of lead exposure, especially for children, is important...- Elevated blood-lead levels in first nation people of Northern Ontario Canada: policy implicationsL J S Tsuji
Department of Environment and Resource Studies, 200 University Ave West, University of Waterloo, Waterloo, ON N2L 3G1, Canada
Bull Environ Contam Toxicol 80:14-8. 2008..Our findings present some concern in that approximately 18% of the 196 First Nations people examined had blood-lead levels > or =100 microg/L... 
Lead shot contribution to blood lead of First Nations people: the use of lead isotopes to identify the source of exposureLeonard J S Tsuji
Department of Environment and Resource Studies, University of Waterloo, Waterloo, Ontario, Canada
Sci Total Environ 405:180-5. 2008..e., use of a shotgun) was also an important route of lead exposure. The banning of lead shotshell for all game hunting would eliminate a source of environmental lead for all people who use firearms and/or eat wild game...- The use of leeches to monitor aquatic PCB contamination at Mid-Canada Radar Line site 050: four years post-remediationL J S Tsuji
Department of Environment and Resource Studies, University of Waterloo, Waterloo, ON, Canada
Environ Monit Assess 153:1-7. 2009..Thus, the removal of the terrestrial source of PCB contamination at Site 050 appears to have removed the main source of aquatic PCBs... - The identification of lead ammunition as a source of lead exposure in First Nations: the use of lead isotope ratiosLeonard J S Tsuji
Department of Environment and Resource Studies, University of Waterloo, Waterloo, ON, Canada
Sci Total Environ 393:291-8. 2008..Thus, lead-contaminated meat from game harvested with lead bullets may also be contributing to the lead body burden... - Spring-harvested game birds in the Western James Bay region of Northern Ontario, Canada: the amount of organochlorines in matched samples of breast muscle, skin, and abdominal fatLeonard J S Tsuji
Department of Environment and Resource Studies, University of Waterloo, Waterloo, ON, Canada
Environ Monit Assess 146:91-104. 2008..Lastly, the consumption of waterfowl was a source of PCBs for people of Fort Albany and Kashechewan, but not DDT, as this organochlorine was infrequently detected... - Spring-harvested game birds from the western James Bay region of northern Ontario, Canada: organochlorine concentrations in breast muscleLeonard J S Tsuji
Department of Environment and Resource Studies, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1
Sci Total Environ 385:160-71. 2007..Nevertheless, skin and fat associated with the breast muscle may be another matter... - Determining tissue-lead levels in large game mammals harvested with lead bullets: human health concernsL J S Tsuji
Department of Environment and Resource Studies, University of Waterloo, 200 University Ave West, Waterloo, ON N2L 3G1, Canada
Bull Environ Contam Toxicol 82:435-9. 2009..Thus, we would advise that the tissue surrounding the wound channel be removed and discarded, as this tissue may be contaminated by lead bullet fragments... - Identifying potential receptors and routes of contaminant exposure in the traditional territory of the Ouje-Bougoumou Cree: land use and a geographical information systemLeonard J S Tsuji
Department of Environment and Resource Studies, University of Waterloo, Waterloo, Ontario, Canada
Environ Monit Assess 127:293-306. 2007..Potential receptors of contaminants associated with mining activity (e.g., fish and small mammals) and potential routes of exposure (e.g., ingestion of contaminated game and drinking of contaminated water) were identified... - The Mid-Canada Radar Line and First Nations' people of the James Bay region, Canada: an evaluation using log-linear contingency modelling to analyze organochlorine frequency dataLeonard J S Tsuji
Department of Environment and Resource Studies, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1
J Environ Monit 7:888-98. 2005..Moreover, the levels of total p,p'-DDT were greater for Fort Albany and Kashechewan women compared to these same aboriginal groups... - Abandoned Mid-Canada Radar Line sites in the Western James region of Northern Ontario, Canada: a source of organochlorines for First Nations people?Leonard J S Tsuji
Department of Environment and Resource Studies, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1
Sci Total Environ 370:452-66. 2006.... - Impact of a school snack program on the dietary intake of grade six to ten First Nation students living in a remote community in northern Ontario, CanadaKelly Skinner
University of Waterloo, Waterloo, Ontario, Canada
Rural Remote Health 12:2122. 2012..The purpose of this study was to examine the impact of a school snack program on the dietary intake of grade six to ten First Nation students living in a remote community in northern Ontario... 
Traditional food consumption behaviour and concern with environmental contaminants among Cree schoolchildren of the Mushkegowuk territoryTina Hlimi
Department of Environment and Resource Studies, University of Waterloo, Waterloo, ON N2L 3G1, Canada
Int J Circumpolar Health 71:17344. 2012..g. wild game, fish) and concerns about environmental contaminants among schoolchildren of the Mushkegowuk Territory First Nations (Moose Factory, Fort Albany, Kashechewan, Attawapiskat, and Peawanuck)...- Using a SWOT analysis to inform healthy eating and physical activity strategies for a remote First Nations community in CanadaKelly Skinner
School of Public Health and Health Systems, University of Waterloo, Waterloo, Ontario, Canada
Am J Health Promot 26:e159-70. 2012..To plan community-driven health promotion strategies based on a strengths, weaknesses, opportunities, and threats (SWOT) analysis of the healthy eating and physical activity patterns of First Nation (FN) youth... - Dietary exposure of PBDEs resulting from a subsistence diet in three First Nation communities in the James Bay Region of CanadaEric N Liberda
Department of Environmental Studies, University of Waterloo, Canada
Environ Int 37:631-6. 2011..PBDEs may potentially be of concern to indigenous (First Nations) people of Canada who subsist on traditional foods, but there is a paucity of information on this topic... - Is there a need to revise Health Canada's human PCB guidelines?Eric N Liberda
Department of Environment and Resource Studies, University of Waterloo, Waterloo, ON
Can J Public Health 98:407-11. 2007.... - Lead pellet ingestion and liver-lead concentrations in upland game birds from southern Ontario, CanadaN Kreager
Department of Environment and Resource Studies, University of Waterloo, Waterloo, Ontario, Canada
Arch Environ Contam Toxicol 54:331-6. 2008..Data indicate that the ingestion of lead pellets in upland game birds and the potential consumption of lead-contaminated meat by humans are concerns related to the continued use of lead shotshell for hunting... - Vegetable and fruit intakes of on-reserve first nations schoolchildren compared to Canadian averages and current recommendationsAllison Gates
School of Public Health and Health Systems, University of Waterloo, 200 University Ave West, Waterloo, ON N2L 3G1, Canada
Int J Environ Res Public Health 9:1379-97. 2012..Prevalence rates of overweight and obesity exceed those of the general population... - Use of traditional environmental knowledge to assess the impact of climate change on subsistence fishing in the James Bay Region of Northern Ontario, CanadaYukari Hori
Department of Physical and Environmental Sciences, University of Toronto at Scarborough, Toronto, Ontario, Canada
Rural Remote Health 12:1878. 2012..Also, TEK was utilized to examine a potential shift in subsistence fish species distribution due to climate change... - The use of leeches and logit log-linear contingency models to assess and monitor aquatic PCB contamination originating from mid-Canada radar line site 050L McCreanor
Department of Environment and Resource Studies, University of Waterloo, Waterloo, ON, Canada
Environ Monit Assess 140:211-22. 2008..Lastly, the removal of the terrestrial source of PCBs during remediation did remove the source of aquatic contaminants in that body burden of contaminants in leeches were significantly lower a year after cleanup... - Liver lead concentrations of several bird species from the western James bay region of northern Ontario, Canada: do the data support the Canadian nontoxic legislation?L J S Tsuji
Department of Environment and Resource Studies, 200 University Avenue West, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada
Bull Environ Contam Toxicol 69:309-13. 2002 - Intakes of milk and alternatives among on-reserve First Nations youth in northern and southern Ontario, CanadaMichelle Gates
School of Public Health and Health Systems, University of Waterloo, 200 University Ave West, Waterloo, Ontario N2L 3G1, Canada
Public Health Nutr 16:515-23. 2013..Intakes were compared with the general population and dietary standards. Variation in intakes by community (proxy for remoteness) and BMI was examined... - Impact on blood Pb levels of maternal and early infant feeding practices of First Nation Cree in the Mushkegowuk Territory of northern Ontario, CanadaRhona M Hanning
Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada L8N 3Z5
J Environ Monit 5:241-5. 2003..Although blood and milk Pb levels were largely within acceptable ranges, the presence of some elevated levels and association between blood Pb and traditional game consumption may reflect the legacy of using lead-containing ammunition... - Dissolution of lead pellets in saliva: a source of lead exposure in childrenL J S Tsuji
Department of Environment and Resource Studies, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada
Bull Environ Contam Toxicol 68:1-7. 2002 - Soil and plant lead of upland habitat used extensively for recreational shooting and game bird hunting in Southern Ontario, CanadaJ Holdner
Department of Environment and Resource Studies, 200 University Avenue West, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada
Bull Environ Contam Toxicol 73:568-74. 2004 - Assessing the impact of pilot school snack programs on milk and alternatives intake in 2 remote First Nation communities in northern Ontario, CanadaMichelle Gates
University of Waterloo, School of Public Health and Health Systems, 200 University Ave West, Waterloo, Ontario N2L 3G1, Canada
J Sch Health 83:69-76. 2013..This research aimed to assess the impact of simple food provision programs on the intakes of milk and alternatives among youth in Kashechewan and Attawapiskat First Nations (FNs), Ontario, Canada... - Wetland soil and vegetation bismuth content following experimental deposition of bismuth pelletsNathan S C Fahey
Department of Environment and Resource Studies, University of Waterloo, Waterloo, Ontario, Canada
J Environ Monit 10:951-4. 2008..15) different to vegetation in plots that were not manipulated. The results suggest bismuth mobilization from bismuth pellets into soil but not to aboveground vegetation... - Barriers and supports for healthy eating and physical activity for First Nation youths in northern CanadaKelly Skinner
Department of Health Studies and Gerontology, University of Waterloo, Ontario, Canada
Int J Circumpolar Health 65:148-61. 2006..Empowerment is a core issue that should be considered in the design of public health interventions for First Nations youths in remote sub-arctic communities... - Dentine-lead levels and dental caries in First Nation children from the western James Bay region of northern Ontario, CanadaL J S Tsuji
Department of Environment and Resource Studies, 200 University Avenue West, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada
Bull Environ Contam Toxicol 70:409-14. 2003 - A community-based participatory approach and engagement process creates culturally appropriate and community informed pandemic plans after the 2009 H1N1 influenza pandemic: remote and isolated First Nations communities of sub-arctic Ontario, CanadaNadia A Charania
Department of Environment and Resource Studies, University of Waterloo, Waterloo, ON, Canada
BMC Public Health 12:268. 2012..Thus, the objective of the present study was to elicit and address First Nations community members' suggested modifications to their community-level pandemic plans after the 2009 H1N1 influenza pandemic... - Is there a need to re-examine the approval of bismuth shotshell as a non-toxic alternative to lead based on the precautionary principle?Nathan S C Fahey
University of Waterloo, Department of Environment and Resource Studies, Waterloo, Ontario, Canada
J Environ Monit 8:1190-4. 2006.... - Elevated levels of PCBs in first nation communities of the Western James Bay region of Northern Ontario, Canada: the use of correspondence analysis to identify source of exposureL J S Tsuji
Department of Environment and Resource Studies, University of Waterloo, 200 University Avenue West, Waterloo, Ontario, Canada
Bull Environ Contam Toxicol 75:903-9. 2005 - Tissue-bismuth levels of game birds harvested with bismuth shotshell: policy implicationsL J S Tsuji
Department of Environment and Resource Studies, University of Waterloo, Ontario, Canada
Bull Environ Contam Toxicol 72:128-34. 2004