Dow Wild Game Study: Turkey data

Tittabawassee River Watch www.trwnews.net

Dow Wild Game Study: Turkey Data

Click here for official Final report: MDCH Dioxins in Wild Game Taken from the Tittabawassee River Floodplain South of Midland, Midland and Saginaw Counties, Michigan EPA ID# MID980994354 Final Report April 29, 2005. Report is officially peer reviewed and backed by the Federal Government ATSDR.

EPA indicates there is much more in the Tittabawassee River than contaminated fish and dioxin, click here

Click here for official State of Michigan T.River Flood Plain Wild Game Consumption Advisory

EPA July 2004 Memo concerning Dow Wild Game Study

	Potential health risks to persons consuming game.
	Dioxin contamination of game indicate contamination of the terrestrial food chain
	Unacceptable, serious aquatic ecological risks to fish, fish eating birds, and mammals.
	There is particular concern regarding distortions of risk information which are causing inaccurate risk messages to the public.
	Click here to read the EPA 7/30/04 memo

Click here to view raw data used to make the following charts

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Note: in the 'Radar" graph below, each circle gridline represents a threshold that is
at least 10 times the level of the adjacent circle inside it (logarithmic scale).
Example: a sample plotted between the 10 and 100 grid rings represent values that are
at least 10 to 99 times the value of samples between the 1 and 10 rings and 100 to 999 times
the value of samples between the 0.1 and 1 rings. Lines connect all the values in a series.
The individual data points represent sample TEQ values from the chart that follows.

Turkey Raw Data

Turkey	Area	TEQ (pg/g)	Percent	(kg)
		Wet Wt.	Lipids	Body Wt.	Age	Sex
		1/2 mid

TR01TY01M1	Ref Area	0.107	4.25	6.01	JUVENILE	FEMALE
TR01TY02M1	Ref Area	0.117	4.02	5.22	JUVENILE	FEMALE
TR01TY03M1	Ref Area	0.26	5.78	4.42	MATURE	FEMALE
TR01TY03MSKIN	Ref Area	2.14	28
TR01TY03MSKINOFF	Ref Area	0.152	1.19
TR01TY04M1	Ref Area	0.141	6.85	2.3	ADULT	FEMALE
TR01TY04MSKIN	Ref Area	1.67	53.5
TR01TY04MSKINOFF	Ref Area	0.101	1.83
TR01TY05M1	Ref Area	0.213	2.9	3.83	MATURE	FEMALE
TR01TY06M1	Ref Area	0.388	5.74	4.68	MATURE	FEMALE
TR01TY06MSKIN	Ref Area	3.08	33.2
TR01TY06MSKINOFF	Ref Area	0.099	1.89
TR01TY07M1	Ref Area	0.178	4.73	5.59	MATURE	FEMALE
TR01TY08M1	Ref Area	0.112	4.23	5.3	MATURE	FEMALE
TR01TY09M1	Ref Area	0.14	5.16	6.55	IMMATURE	MALE
TR01TY10M1	Ref Area	0.145	4.14	5.1	IMMATURE	MALE
TR01TY11M1	Ref Area	0.232	6.84	9.61	MATURE	MALE
TR01TY12M1	Ref Area	0.136	5.34	8.56	MATURE	MALE


TR02TY01M1	Smith Crossing	0.628	2.39	4.76	IMMATURE	FEMALE
TR02TY02M1	Smith Crossing	12.4	2.76	6.32	IMMATURE	ND
TR02TY03M1	Smith Crossing	8.23	2.52	4.37	MATURE	FEMALE
TR02TY04M1	Smith Crossing	25.4	3.18	7.26	ND	MALE
TR02TY05M1	Smith Crossing	9.11	5.99	9.38	ADULT	MALE
TR02TY06M1	Smith Crossing	4.99	4.89	9.13	ND	FEMALE
TR02TY07M1	Smith Crossing	21.1	4.68	6.41	JUVENILE	MALE
TR02TY07MSKIN	Smith Crossing	264	37
TR02TY07MSKINOFF	Smith Crossing	13.3	1.82
TR02TY08M1	Smith Crossing	4.43	1.81	5.08	JUVENILE	FEMALE
TR02TY09M1	Smith Crossing	8.94	2.2	4.85	JUVENILE	FEMALE
TR02TY10M1	Smith Crossing	7.2	1.76	4.76	JUVENILE	FEMALE
TR02TY10MSKIN	Smith Crossing	46.7	8.35
TR02TY10MSKINOFF	Smith Crossing	2.89	0.94
TR02TY11M1	Smith Crossing	7.55	1.44	5.64	JUVENILE	FEMALE
TR02TY11MSKIN	Smith Crossing	47.9	6.06
TR02TY11MSKINOFF	Smith Crossing	3.28	0.75

TR03TY01M1	Imerman Park	12.9	3.46	8.05	MATURE	MALE

GES memo (7/16/04) to the MDEQ indicates the results of the Dow/Entrix Wild Game study in the Tittabawassee River Flood plain confirms findings of MDEQ/GES 2003 T.River Aquatic Ecological Risk Assesement. Conclusions:

Review of the Entrix (2004) report has shown that the data contained therein support one of the major conclusions of the Michigan DEQ terrestrial ecological risk assessment (GES, 2004), that is that biota and food chains on the Tittabawassee River downriver of Midland are contaminated by PCDDs and PCDFs. A reasonable conclusion from this is that predators and scavengers at the tops of these food chains are likely to be even more exposed to these contaminants than the deer, squirrels, and turkeys sampled in the Entrix (2004) study.

However, the Entrix (2004) study was designed to generate data for an evaluation of risk to human health, rather than to ecological receptors. Because of this, design elements in the Entrix (2004) study, though perhaps appropriate for a human health risk analysis, result in an underestimation of the contaminant concentrations to which wildlife would be exposed and, hence, the magnitude of the risks incurred. These design elements comprise:

	The sampling was confined to organisms which, because of their diets, are unlikely to bioaccumulate PCDDs and PCDFs to the extent that other organisms would.
	The carcass handling procedures resulted in a likely underestimation of the magnitudes of the PCDD/PCDF whole-body burdens to which predators and scavengers may be exposed.
	The sample spatial distribution almost certainly results in an underestimation of the PCDD/PCDF body burdens of turkeys in the lower sections of the floodplain, and, hence, in the potential exposures to their predators and scavengers.

Click here to read the entire July 2004 memo

Tittabawassee River Aquatic Ecological Risk Assessment Slide Show

Tittabawassee River Aquatic Ecological Risk Assesement Final Report (pdf)

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