University of Michigan Dioxin Exposure Study 06/05/2008 ... · University of Michigan Dioxin...

University of Michigan Dioxin Exposure Study 06/05/2008 SOIL DIOXIN CONCENTRATIONS: Weighted TEQ by region ZONE: Midland/Saginaw Floodplain STRATA: 0-1 inch Number of Participants: 191 Sample Type: soil Notes: TEQ is the TEF-weighted average of the 17 dioxin congeners (excluding the PCBs) based on

WHO 1998 TEFs Survey Sampling Weight: wt_final_soil

TEQ (ppt)

Zone N Mean S.E. Median 75th %ile 95th %ile Min. Max. Overall 191 300.6 52 14.4 281.2 1325.8 1.1 9334.2 M/S FP 191 300.6 52 14.4 281.2 1325.8 1.1 9334.2 M/S Near FP M/S Out FP M/S Plume Jackson/Calhoun

M/S: Midland/Saginaw FP: Floodplain SAS program: Get_table1_figure1.sas Created by: BH & XJ Last Update: XZ 06/05/2008



Overall Distribution of TEQ_DF17-1998, N=191

Curve: Normal(Mu=303.36 Sigma=755.95)

Percent

0

10

20

30

40

50

60

70

80

90

Soil TEQ_DF17-1998

-500 1000 2500 4000 5500 7000 8500 10000 11500 13000 14500

Mean 300.6

Minimum 1.1

Median 14.4

Maximum 9334.2

Overall Distribution of log10(TEQ_DF17-1998), N=191


Percent

0.0

2.5

5.0

7.5

10.0

12.5

15.0

17.5

log10(Soil TEQ_DF17-1998)

-0.25 0.25 0.75 1.25 1.75 2.25 2.75 3.25 3.75 4.25 4.75

Mean 1.5

Minimum 0.1

Median 1.2

Maximum 4.0

SAS program: Get_table1_figure1.sas Created by: BH & XJ Last Update: XZ 06/05/2008

University of Michigan Dioxin Exposure Study 07/02/2008 WEIGHTED SOIL CONCENTRATIONS: Distribution of each dioxin and furan congener concentration, shown using box plots on the log10 scale. ZONE: Midland/Saginaw Floodplain STRATA: 0-1 inch

Number of Participants: 191 Sample Type: soil Survey Sampling Weight: wt_final_soil

SAS program: Get_boxplot_figure2

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Dioxins Furans

Created by: BH Last Update: XZ 07/02/2008

University of Michigan Dioxin Exposure Study 07/07/2008 WEIGHTED SOIL CONCENTRATIONS: Contribution of each congener to the total TEQ, shown using box plots ZONE: Midland/Saginaw Floodplain STRATA: 0-1 inch

Number of Participants: 191 Sample Type: soil

Notes: TEQ is the TEF-weighted average of the 17 dioxin congeners (excluding the PCBs) based on WHO 1998 TEFs Survey Sampling Weight: wt_final_soil

2378

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Con

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to T

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TEQ

_DF1

7_W

HO

98 (%

)

Dioxins Furans

SAS program: Get_boxplot_Figure3_4_TEQ98_17.sas Created by: BH Last Update: XZ 07/07/2008

University of Michigan Dioxin Exposure Study 07/07/2008 WEIGHTED SOIL CONCENTRATIONS: Percent contribution to total TEQ for dioxins and furans, by region, shown using box plots ZONE: Midland/Saginaw Floodplain STRATA: 0-1 inch

Number of Participants: 191 Sample Type: soil Notes: TEQ is the TEF-weighted average of the 17 dioxin congeners (excluding the PCBs) based on WHO 1998 TEFs Survey Sampling Weight: wt_final_soil

Region* 1-Midland/Saginaw FP; 2-Midland/Saginaw Near FP; 3-Midland/Saginaw Out FP; 4-Midland/Saginaw Plume; 5-Jackson/Calhoun

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Dioxins Furans




TEQ (ppt)

Zone N Mean S.E. Median 75th %ile 95th %ile Min. Max. Overall 191 361.7 67.4 11.8 389.8 1466.3 0.8 6736.6 M/S FP 191 361.7 67.4 11.8 389.8 1466.3 0.8 6736.6 M/S Near FP M/S Out FP M/S Plume Jackson/Calhoun






Percent

0

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Soil TEQ_DF17-1998

-250 250 750 1250 1750 2250 2750 3250 3750 4250 4750 5250 5750 6250 6750 7250

Mean 361.7

Minimum 0.8

Median 11.8

Maximum 6736.6



Percent

0

5

10

15

20

25


-0.5 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5

Mean 1.5

Minimum -0.1

Median 1.1

Maximum 3.8


University of Michigan Dioxin Exposure Study 07/02/2008 WEIGHTED SOIL CONCENTRATIONS: Distribution of each dioxin and furan congener concentration, shown using box plots on the log10 scale. ZONE: Midland/Saginaw Floodplain STRATA: 1-6 inch Number of Participants: 191 Sample Type: soil Survey Sampling Weight: wt_final_soil


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Dioxins Furans


University of Michigan Dioxin Exposure Study 07/07/2008 WEIGHTED SOIL CONCENTRATIONS: Contribution of each congener to the total TEQ, shown using box plots ZONE: Midland/Saginaw Floodplain STRATA: 1-6 inch Number of Participants: 191 Sample Type: soil Notes: TEQ is the TEF-weighted average of the 17 dioxin congeners (excluding the PCBs) based on WHO 1998 TEFs Survey Sampling Weight: wt_final_soil

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1234

789_

HpC

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OCDF

0

20

40

60

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100

Con

tribu

tion

to T

otal

TEQ

_DF1

7_W

HO

98 (%

)

Dioxins Furans


University of Michigan Dioxin Exposure Study 07/07/2008 WEIGHTED SOIL CONCENTRATIONS: Percent contribution to total TEQ for dioxins and furans, by region, shown using box plots ZONE: Midland/Saginaw Floodplain STRATA: 1-6 inch Number of Participants: 191 Sample Type: soil Notes: TEQ is the TEF-weighted average of the 17 dioxin congeners (excluding the PCBs) based on WHO 1998 TEFs Survey Sampling Weight: wt_final_soil


1 2 3 4 5 1 2 3 4 5

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Contr

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F17-

1998

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Dioxins Furans


University of Michigan Dioxin Exposure Study 06/05/2008 SOIL DIOXIN CONCENTRATIONS: Weighted TEQ by region ZONE: Midland/Saginaw Floodplain STRATA: Vegetation Number of Participants: 163 Sample Type: soil Notes: TEQ is the TEF-weighted average of the 17 dioxin congeners (excluding the PCBs) based on


TEQ (ppt)

Zone N Mean S.E. Median 75th %ile 95th %ile Min. Max. Overall 163 62.4 21.1 3.2 16.1 291.1 0.1 2211.6 M/S FP 163 62.4 21.1 3.2 16.1 291.1 0.1 2211.6 M/S Near FP M/S Out FP M/S Plume Jackson/Calhoun


University of Michigan Dioxin Exposure Study 06/05/2008 SOIL DIOXIN CONCENTRATIONS: Weighted TEQ by region ZONE: Midland/Saginaw Floodplain STRATA: Vegetation Number of Participants: 163 Sample Type: soil Notes: TEQ is the TEF-weighted average of the 17 dioxin congeners (excluding the PCBs) based on




Percent

0

20

40

60

80

100

Soil TEQ_DF17-1998

-100 100 300 500 700 900 1100 1300 1500 1700 1900 2100 2300 2500 2700 2900

Mean 62.4

Minimum 0.1

Median 3.2

Maximum 2211.6



Percent

0.0

2.5

5.0

7.5

10.0

12.5

15.0


-1.0 -0.5 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0

Mean 0.7

Minimum -0.8

Median 0.5

Maximum 3.3


University of Michigan Dioxin Exposure Study 07/02/2008 WEIGHTED SOIL CONCENTRATIONS: Distribution of each dioxin and furan congener concentration, shown using box plots on the log10 scale. ZONE: Midland/Saginaw Floodplain STRATA: Vegetation



2378

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Dioxins Furans


University of Michigan Dioxin Exposure Study 07/07/2008 WEIGHTED SOIL CONCENTRATIONS: Contribution of each congener to the total TEQ, shown using box plots ZONE: Midland/Saginaw Floodplain STRATA: Vegetation


2378

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Contr

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Total

TEQ

_DF1

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98 (%

)

Dioxins Furans


University of Michigan Dioxin Exposure Study 07/07/2008 WEIGHTED SOIL CONCENTRATIONS: Percent contribution to total TEQ for dioxins and furans, by region, shown using box plots ZONE: Midland/Saginaw Floodplain STRATA: Vegetation



1 2 3 4 5 1 2 3 4 5

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1998

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Dioxins Furans


University of Michigan Dioxin Exposure Study 06/05/2008 SOIL DIOXIN CONCENTRATIONS: Weighted TEQ by region ZONE: House Perimeter STRATA: 0-1 inch Number of Participants: 766 Sample Type: soil Notes: TEQ is the TEF-weighted average of the 17 dioxin congeners (excluding the PCBs) based on


TEQ (ppt)

Zone N Mean S.E. Median 75th %ile 95th %ile Min. Max. Overall 766 14.4 1.9 3.9 9.2 58.5 0.3 3054.7 M/S FP 203 71.3 12.7 12.1 40 291 1.1 2480.1 M/S Near FP 164 67.4 48.7 4 10.5 135 0.8 3054.7 M/S Out FP 168 14.8 2.4 4.7 12.1 71.7 0.8 204.7 M/S Plume 37 113.1 38.2 58.1 96.6 255.9 4.9 922.8 Jackson/Calhoun 194 5.2 0.5 2.8 6.2 15.6 0.3 65.6






Percent

0

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40

60

80

100

120

140

Soil TEQ_DF17-1998

-200 200 600 1000 1400 1800 2200 2600 3000 3400 3800 4200 4600 5000 5400 5800

Mean 14.4

Minimum 0.3

Median 3.9

Maximum 3054.7



Percent

0.0

2.5

5.0

7.5

10.0

12.5

15.0

17.5

20.0

22.5


-1.0 -0.5 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0

Mean 0.7

Minimum -0.5

Median 0.6

Maximum 3.5


University of Michigan Dioxin Exposure Study 06/18/2008 SOIL DIOXIN CONCENTRATIONS: Test results for comparing weighted TEQ among regions ZONE: House Perimeter STRATA: 0-1 inch Number of Participants: 766 Sample Type: soil

Notes: TEQ is the TEF-weighted average of the 17 dioxin congeners (excluding the PCBs) based on WHO 1998 TEFs Survey Sampling Weight: wt_final_soil Summary Statistics for soil (house perimeter 0-1 inch) weighted TEQ concentration for region comparisons

Region Mean of log10 TEQ % > Jackson/Calhoun's 75th

percentile, which is 6.2 ppt

% > Jackson/Calhoun's 95th percentile,

which is 15.6 ppt 1-M/S FP (n=203) 1.2375 72.2% 45.8% 2-M/S Near FP (n=164) 0.7945 38.3% 18.5% 3-M/S Out FP (n=168) 0.8069 43.6% 21.7% 4-M/S Plume (n=37) 1.8509 98.4% 97.2% 5-Jackson/Calhoun (n=194) 0.4699 24.4% 4.7% M/S: Midland / Saginaw; FP: Floodplain Pair-wise comparisons for soil (house perimeter 0-1 inch) weighted TEQ between regions (Each cell contains the p-value and effect direction) This table shows the results of 1) t-tests (SAS PROC Surveyreg) for comparisons of the means of log10TEQ between each combination of two regions; 2) Wald chi-square tests (SAS PROC Surveylogistic) for comparisons of the odds of subjects being above the 75th percentile TEQ for Jackson/Calhoun Counties between each combination of two regions; and 3) Wald chi-square tests (SAS PROC Surveylogistic) for comparisons of the odds of subjects being above the 95th percentile TEQ for Jackson/Calhoun Counties between each combination of two regions. "+" after p-value: the row-region has higher mean or higher odds of being above the selected cut-point than the column-region. "-" after p-value: the row-region has lower mean or lower odds of being above the selected cut-point than the column-region.

1-M/S FP 2-M/S Near FP 3-M/S Out FP 4-M/S Plume 5-Jackson/Calhoun

P-value Mean of log10 TEQ

%>J/C’s 75th

%>J/C’s 95th

Mean of log10 TEQ

%>J/C’s 75th

%>J/C’s 95th

Mean of log10 TEQ

%>J/C’s 75th

%>J/C’s 95th

Mean of log10 TEQ

%>J/C’s 75th

%>J/C’s 95th

1-M/S FP <0.0001+ <0.0001+ <0.0001+ <0.0001+ <0.0001+ 0.0001 + <0.0001- 0.0028 - <0.0001- <0.0001+ <0.0001+ <0.0001+

2-M/S Near FP 0.8994 - 0.4794 - 0.5484 - <0.0001- <0.0001- <0.0001- 0.0004 + 0.0219 + 0.0002 +

3-M/S Out FP <0.0001- <0.0001- <0.0001- <0.0001+ 0.0003 + <0.0001+

4-M/S Plume <0.0001+ <0.0001+ <0.0001+

J/C: Jackson/Calhoun

SAS program: Get_soil_region_compare.sas Created by: BH & WC Last Update: XZ 06/18/2008

University of Michigan Dioxin Exposure Study 07/02/2008 WEIGHTED SOIL CONCENTRATIONS: Distribution of each dioxin and furan congener concentration, shown using box plots on the log10 scale. ZONE: House Perimeter STRATA: 0-1 inch



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Dioxins Furans


University of Michigan Dioxin Exposure Study 07/07/2008 WEIGHTED SOIL CONCENTRATIONS: Contribution of each congener to the total TEQ, shown using box plots ZONE: House Perimeter STRATA: 0-1 inch



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Cont

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Tota

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98 (%

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Dioxins Furans


University of Michigan Dioxin Exposure Study 07/07/2008 WEIGHTED SOIL CONCENTRATIONS: Percent contribution to total TEQ for dioxins and furans, by region, shown using box plots ZONE: House Perimeter STRATA: 0-1 inch



1 2 3 4 5 1 2 3 4 5

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Contr

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n to T

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EQ_D

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1998

(%)

Dioxins Furans




TEQ (ppt)

Zone N Mean S.E. Median 75th %ile 95th %ile Min. Max. Overall 449 96.9 72.7 10 22 80.1 0.7 15306.8 M/S FP 198 71.1 14.6 11.3 28.2 275.9 1.1 2835.7 M/S Near FP 75 82.7 36.9 11.9 42.7 402.7 1.2 918.7 M/S Out FP 87 151.7 135.8 11.2 21 80.1 1 15306.8 M/S Plume 36 109.7 45.3 56.4 70.5 292.7 7 1068.3 Jackson/Calhoun 53 9.1 1.4 7.4 9.3 25.8 0.7 31.9





Curve: Normal(Mu=97.052 Sigma=1045)

Percent

0

20

40

60

80

100

Soil TEQ_DF17-1998

-1000 2000 5000 8000 11000 14000 17000 20000 23000 26000 29000

Mean 96.9

Minimum 0.7

Median 10.0

Maximum 15307



Percent

0

5

10

15

20

25

30


-0.25 0.25 0.75 1.25 1.75 2.25 2.75 3.25 3.75 4.25 4.75

Mean 1.0

Minimum -0.1

Median 1.0

Maximum 4.2


University of Michigan Dioxin Exposure Study 07/02/2008 WEIGHTED SOIL CONCENTRATIONS: Distribution of each dioxin and furan congener concentration, shown using box plots on the log10 scale. ZONE: House Perimeter STRATA: 1-6 inch Number of Participants: 449 Sample Type: soil Survey Sampling Weight: wt_final_soil


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Dioxins Furans


University of Michigan Dioxin Exposure Study 07/07/2008 WEIGHTED SOIL CONCENTRATIONS: Contribution of each congener to the total TEQ, shown using box plots ZONE: House Perimeter STRATA: 1-6 inch Number of Participants: 449 Sample Type: soil


2378

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0

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Cont

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98 (%

)

Dioxins Furans


University of Michigan Dioxin Exposure Study 07/07/2008 WEIGHTED SOIL CONCENTRATIONS: Percent contribution to total TEQ for dioxins and furans, by region, shown using box plots ZONE: House Perimeter STRATA: 1-6 inch Number of Participants: 449 Sample Type: soil



1 2 3 4 5 1 2 3 4 5

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Contr

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1998

(%)

Dioxins Furans


University of Michigan Dioxin Exposure Study 06/05/2008 SOIL DIOXIN CONCENTRATIONS: Weighted TEQ by region ZONE: House Perimeter STRATA: Vegetation Number of Participants: 416 Sample Type: soil Notes: TEQ is the TEF-weighted average of the 17 dioxin congeners (excluding the PCBs) based on


TEQ (ppt)

Zone N Mean S.E. Median 75th %ile 95th %ile Min. Max. Overall 416 12.3 5.3 3 4.8 19.7 0.3 10484.7 M/S FP 188 17.5 4.5 3.6 8.7 65.4 0.3 1888.4 M/S Near FP 69 492.9 464.4 3.7 12.1 202.1 0.5 10484.7 M/S Out FP 71 4 0.5 3.1 4.6 10.1 0.9 35.8 M/S Plume 36 38.3 14.9 15.3 30.8 126.3 0.8 335.7 Jackson/Calhoun 52 3.1 0.5 2.3 4.4 7.2 0.5 13


University of Michigan Dioxin Exposure Study 06/05/2008 SOIL DIOXIN CONCENTRATIONS: Weighted TEQ by region ZONE: House Perimeter STRATA: Vegetation Number of Participants: 416 Sample Type: soil Notes: TEQ is the TEF-weighted average of the 17 dioxin congeners (excluding the PCBs) based on




Percent

0

20

40

60

80

100

Soil TEQ_DF17-1998

-500 1000 2500 4000 5500 7000 8500 10000 11500 13000 14500

Mean 12.3

Minimum 0.3

Median 3.0

Maximum 10485



Percent

0

5

10

15

20

25

30


-0.5 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5

Mean 0.5

Minimum -0.5

Median 0.5

Maximum 4.0


University of Michigan Dioxin Exposure Study 07/02/2008 WEIGHTED SOIL CONCENTRATIONS: Distribution of each dioxin and furan congener concentration, shown using box plots on the log10 scale. ZONE: House Perimeter STRATA: Vegetation



2378

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HpC

DF

OCDF

0

1

2

3

4

5

Cong

ener

Con

centr

ation

s (log

10(p

pt+1)

)

Dioxins Furans


University of Michigan Dioxin Exposure Study 07/07/2008 WEIGHTED SOIL CONCENTRATIONS: Contribution of each congener to the total TEQ, shown using box plots ZONE: House Perimeter STRATA: Vegetation


2378

_TCDD

1237

8_PeC

DD

1234

78_H

xCDD

1236

78_H

xCDD

1237

89_H

xCDD

1234

678_

HpC

DD

OCDD

2378

_TCDF

1237

8_PeC

DF

2347

8_PeC

DF

1234

78_H

xCDF

1236

78_H

xCDF

1237

89_H

xCDF

2346

78_H

xCDF

1234

678_

HpC

DF

1234

789_

HpC

DF

OCDF

0

20

40

60

80

Contr

ibutio

n to T

otal T

EQ_D

F17-

1998

(%)

Dioxins Furans


University of Michigan Dioxin Exposure Study 07/07/2008 WEIGHTED SOIL CONCENTRATIONS: Percent contribution to total TEQ for dioxins and furans, by region, shown using box plots ZONE: House Perimeter STRATA: Vegetation



1 2 3 4 5 1 2 3 4 5

0

25

50

75

100

Contr

ibutio

n to

Total

TEQ

_DF1

7-19

98 (%

)

Dioxins Furans


University of Michigan Dioxin Exposure Study 06/05/2008 SOIL DIOXIN CONCENTRATIONS: Weighted TEQ by region ZONE: Soil Contact STRATA: 0-6 inch Number of Participants: 484 Sample Type: soil Notes: TEQ is the TEF-weighted average of the 17 dioxin congeners (excluding the PCBs) based on


TEQ (ppt)

Zone N Mean S.E. Median 75th %ile 95th %ile Min. Max. Overall 484 9.8 0.9 3.5 7.5 39.3 0.3 2949.8 M/S FP 132 63.1 14.5 9.6 40 249.8 1.1 2949.8 M/S Near FP 100 24.9 6.5 5.7 11.5 117.4 0.7 730 M/S Out FP 101 10.1 1.1 3.8 11.5 37.3 0.4 115.2 M/S Plume 27 62.9 12.8 53.8 61.7 272.2 19.7 272.2 Jackson/Calhoun 124 3.3 0.3 2.2 4.3 9.5 0.3 19


University of Michigan Dioxin Exposure Study 06/05/2008 SOIL DIOXIN CONCENTRATIONS: Weighted TEQ by region ZONE: Soil Contact STRATA: 0-6 inch Number of Participants: 484 Sample Type: soil Notes: TEQ is the TEF-weighted average of the 17 dioxin congeners (excluding the PCBs) based on




Percent

0

50

100

150

200

250

Soil TEQ_DF17-1998

-200 200 600 1000 1400 1800 2200 2600 3000 3400 3800 4200 4600 5000 5400 5800

Mean 9.8

Minimum 0.3

Median 3.5

Maximum 2949.8



Percent

0

5

10

15

20

25


-1.0 -0.5 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0

Mean 0.6

Minimum -0.6

Median 0.5

Maximum 3.5


University of Michigan Dioxin Exposure Study 06/18/2008 SOIL DIOXIN CONCENTRATIONS: Test results for comparing weighted TEQ among regions ZONE: Soil Contact STRATA: 0-6 inch Number of Participants: 484 Sample Type: soil

Notes: TEQ is the TEF-weighted average of the 17 dioxin congeners (excluding the PCBs) based on WHO 1998 TEFs Survey Sampling Weight: wt_final_soil Summary Statistics for soil (soil contact 0-6 inch) weighted TEQ concentration for region comparisons

Region Mean of log10 TEQ % > Jackson/Calhoun's 75th

percentile, which is 4.3 ppt

% > Jackson/Calhoun's 95th percentile,

which is 9.5 ppt 1-M/S FP (n=132) 1.1363 80.0% 50.3% 2-M/S Near FP (n=100) 0.8616 59.9% 32.0% 3-M/S Out FP (n=101) 0.7075 46.4% 28.4% 4-M/S Plume (n=27) 1.6970 100.0% 100.0% 5-Jackson/Calhoun (n=124) 0.3126 25.2% 4.6% M/S: Midland / Saginaw; FP: Floodplain Pair-wise comparisons for soil (soil contact 0-6 inch) weighted TEQ between regions (Each cell contains the p-value and effect direction) This table shows the results of 1) t-tests (SAS PROC Surveyreg) for comparisons of the means of log10TEQ between each combination of two regions; 2) Wald chi-square tests (SAS PROC Surveylogistic) for comparisons of the odds of subjects being above the 75th percentile TEQ for Jackson/Calhoun Counties between each combination of two regions; and 3) Wald chi-square tests (SAS PROC Surveylogistic) for comparisons of the odds of subjects being above the 95th percentile TEQ for Jackson/Calhoun Counties between each combination of two regions. "+" after p-value: the row-region has higher mean or higher odds of being above the selected cut-point than the column-region. "-" after p-value: the row-region has lower mean or lower odds of being above the selected cut-point than the column-region.

1-M/S FP 2-M/S Near FP 3-M/S Out FP 4-M/S Plume 5-Jackson/Calhoun

P-value Mean of log10 TEQ

%>J/C’s 75th

%>J/C’s 95th

Mean of log10 TEQ

%>J/C’s 75th

%>J/C’s 95th

Mean of log10 TEQ

%>J/C’s 75th

%>J/C’s 95th

Mean of log10 TEQ

%>J/C’s 75th

%>J/C’s 95th

1-M/S FP 0.0047 + 0.0107 + 0.0254 + <0.0001+ <0.0001+ 0.0013 + <0.0001- <0.0001- <0.0001- <0.0001+ <0.0001+ <0.0001+

2-M/S Near FP 0.0571 + 0.1046 + 0.5940 + <0.0001- <0.0001- <0.0001- <0.0001+ 0.0002 + <0.0001+

3-M/S Out FP <0.0001- <0.0001- <0.0001- <0.0001+ 0.0120 + <0.0001+

4-M/S Plume <0.0001+ <0.0001+ <0.0001+

J/C: Jackson/Calhoun

SAS program: Get_soil_region_compare.sas Created by: BH & WC Last Update: XZ 06/18/2008

University of Michigan Dioxin Exposure Study 07/02/2008 WEIGHTED SOIL CONCENTRATIONS: Distribution of each dioxin and furan congener concentration, shown using box plots on the log10 scale. ZONE: Soil Contact STRATA: 0-6 inch



2378

_TCDD

1237

8_PeC

DD

1234

78_H

xCDD

1236

78_H

xCDD

1237

89_H

xCDD

1234

678_

HpC

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OCDD

2378

_TCDF

1237

8_PeC

DF

2347

8_PeC

DF

1234

78_H

xCDF

1236

78_H

xCDF

1237

89_H

xCDF

2346

78_H

xCDF

1234

678_

HpC

DF

1234

789_

HpC

DF

OCDF

0

1

2

3

4

5

Cong

ener

Con

centr

ation

s (log

10(p

pt+1)

)

Dioxins Furans


University of Michigan Dioxin Exposure Study 07/07/2008 WEIGHTED SOIL CONCENTRATIONS: Contribution of each congener to the total TEQ, shown using box plots ZONE: Soil Contact STRATA: 0-6 inch



2378

_TCDD

1237

8_PeC

DD

1234

78_H

xCDD

1236

78_H

xCDD

1237

89_H

xCDD

1234

678_

HpC

DD

OCDD

2378

_TCDF

1237

8_PeC

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8_PeC

DF

1234

78_H

xCDF

1236

78_H

xCDF

1237

89_H

xCDF

2346

78_H

xCDF

1234

678_

HpC

DF

1234

789_

HpC

DF

OCDF

0

20

40

60

80

Cont

ributi

on to

Tota

l TEQ

_DF1

7-19

98 (%

)

Dioxins Furans


University of Michigan Dioxin Exposure Study 07/07/2008 WEIGHTED SOIL CONCENTRATIONS: Percent contribution to total TEQ for dioxins and furans, by region, shown using box plots ZONE: Soil Contact STRATA: 0-6 inch




1 2 3 4 5 1 2 3 4 5

0

25

50

75

100

Contr

ibutio

n to

Total

TEQ

_DF1

7-19

98 (%

)

Dioxins Furans


University of Michigan Dioxin Exposure Study 06/05/2008 SOIL DIOXIN CONCENTRATIONS: Weighted TEQ by region ZONE: Soil Contact STRATA: Vegetation Number of Participants: 18 Sample Type: soil Notes: TEQ is the TEF-weighted average of the 17 dioxin congeners (excluding the PCBs) based on


TEQ (ppt)

Zone N Mean S.E. Median 75th %ile 95th %ile Min. Max. Overall 18 6.6 2.3 3.7 3.7 15.2 0.5 121.1 M/S FP 13 22.1 14.7 1.7 15.2 121.1 0.8 121.1 M/S Near FP 4 9.4 5.7 4.5 9 34.9 0.5 34.9 M/S Out FP 1 3.7 0 3.7 3.7 3.7 3.7 3.7 M/S Plume Jackson/Calhoun


University of Michigan Dioxin Exposure Study 06/05/2008 SOIL DIOXIN CONCENTRATIONS: Weighted TEQ by region ZONE: Soil Contact STRATA: Vegetation Number of Participants: 18 Sample Type: soil Notes: TEQ is the TEF-weighted average of the 17 dioxin congeners (excluding the PCBs) based on




Percent

0

20

40

60

80

100

Soil TEQ_DF17-1998

-5 5 15 25 35 45 55 65 75 85 95 105 115 125 135 145

Mean 6.6

Minimum 0.5

Median 3.7

Maximum 121.1



Percent

0

10

20

30

40

50

60

70

80

90


-0.6 -0.2 0.2 0.6 1.0 1.4 1.8 2.2 2.6 3.0 3.4

Mean 0.6

Minimum -0.3

Median 0.6

Maximum 2.1


University of Michigan Dioxin Exposure Study 07/02/2008 WEIGHTED SOIL CONCENTRATIONS: Distribution of each dioxin and furan congener concentration, shown using box plots on the log10 scale. ZONE: Soil Contact STRATA: Vegetation



2378

_TCDD

1237

8_PeC

DD

1234

78_H

xCDD

1236

78_H

xCDD

1237

89_H

xCDD

1234

678_

HpC

DD

OCDD

2378

_TCDF

1237

8_PeC

DF

2347

8_PeC

DF

1234

78_H

xCDF

1236

78_H

xCDF

1237

89_H

xCDF

2346

78_H

xCDF

1234

678_

HpC

DF

1234

789_

HpC

DF

OCDF

0

1

2

3

4

Cong

ener

Con

centr

ation

s (log

10(p

pt+1)

)

Dioxins Furans


University of Michigan Dioxin Exposure Study 07/07/2008 WEIGHTED SOIL CONCENTRATIONS: Contribution of each congener to the total TEQ, shown using box plots ZONE: Soil Contact STRATA: Vegetation

Number of Paricipants: 18 Sample Type: soil Notes: TEQ is the TEF-weighted average of the 17 dioxin congeners (excluding the PCBs) based on WHO 1998 TEFs Survey Sampling Weight: wt_final_soil

2378

_TCDD

1237

8_PeC

DD

1234

78_H

xCDD

1236

78_H

xCDD

1237

89_H

xCDD

1234

678_

HpC

DD

OCDD

2378

_TCDF

1237

8_PeC

DF

2347

8_PeC

DF

1234

78_H

xCDF

1236

78_H

xCDF

1237

89_H

xCDF

2346

78_H

xCDF

1234

678_

HpC

DF

1234

789_

HpC

DF

OCDF

0

20

40

60

Cont

ributi

on to

Tota

l TEQ

_DF1

7-19

98 (%

)

Dioxins Furans


University of Michigan Dioxin Exposure Study 07/07/2008 WEIGHTED SOIL CONCENTRATIONS: Percent contribution to total TEQ for dioxins and furans, by region, shown using box plots ZONE: Soil Contact STRATA: Vegetation



1 2 3 4 5 1 2 3 4 5

0

25

50

75

100

Contr

ibutio

n to

Total

TEQ

_DF1

7-19

98 (%

)

Dioxins Furans


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