Table Descriptive statistics for Σpcdd/DFs and teq




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Table 3. Descriptive statistics for ΣPCDD/DFs and TEQWHO-Avian (ng/kg ww) by site from food web invertebrate collections for Araneae samples collected within the Chippewa and Tittabawassee River floodplains during 2004–2006, Midland, Michigan, USA.







ΣPCDD/DFs




TEQWHO-Aviana

Siteb

n

mean±SD

(range)


CLMs

mean±SD

(range)


CLMs



















R-1

2

(36–45)c,d



(0.99–1.8)



R-2

1

360



4.5



T-4

2

(260–510)



(43–110)



T-6

1

1100



380






a TEQWHO-Avian were calculated based on the 1998 avian WHO TEF values

b R-1 to R-2 = Tittabawassee and Chippewa rivers reference area; T-3 to T-6 = Tittabawassee River study area

c Values were rounded and represent only two significant figures

d Arithmetic mean, standard deviation, and 95% confidence limits (CLMs) were not reported for sites with less than 3 samples




Table 4. Descriptive statistics for ΣPCDD/DFs and TEQWHO-Avian (ng/kg ww) by site from food web invertebrate collections for Lepidoptera samples collected within the Chippewa, Tittabawassee, and Saginaw River floodplains during 2004–2006, Midland, Michigan, USA.







ΣPCDD/DFs




TEQWHO-Aviana

Siteb

n

mean±SD

(range)


CLMs

mean±SD

(range)


CLMs



















R-1

4

12±3.9

(8.1–17)c



6.2–19

0.95±0.41

(0.52–1.4)



0.29–1.6

R-2

3

22±2.8

(20–25)


15–29

1.1±0.41

(0.73–1.5)



0.037–2.1

T-3

1

57d



9.3



T-4

1

240



85



T-5

2

(140–180)



(87–98)



T-6

2

(42–180)



(11–47)



S-7

3

540±740

(110–1400)



-1300–2400

25±10

(16–36)


-0.15–51

S-8

2

(18–41)



(4.5–16)



S-9

2

(39–51)



(3.1–5.6)






a TEQWHO-Avian were calculated based on the 1998 avian WHO TEF values

b R-1 to R-2 = Tittabawassee and Chippewa rivers reference area; T-3 to T-6 = Tittabawassee River study area; S-7 to S-9 = Saginaw River study area

c Values were rounded and represent only two significant figures

d Arithmetic mean, standard deviation, and 95% confidence limits (CLMs) were not reported for sites with less than 3 samples

Table 5. Descriptive statistics for ΣPCDD/DFs and TEQWHO-Avian (ng/kg ww) by site from food web invertebrate collections for Nematocera samples collected within the Chippewa, Tittabawassee, and Saginaw River floodplains during 2004–2006, Midland, Michigan, USA.







ΣPCDD/DFs




TEQWHO-Aviana

Siteb

n

mean±SD

(range)


CLMs

mean±SD

(range)


CLMs



















R-1

2

(20–42)c,d



(1.7–3.7)



R-2

1

130



9.1



T-3

2

(140–170)



(40–56)



T-4

2

(310–1200)



(130–520)



T-5

1

800



500



T-6

1

1100



470



S-7

2

(170–250)



(100–160)



S-8

2

(110–140)



(56–74)



S-9

3

200±49

(160–260)



82–330

76±23

(58–100)


20–130




a TEQWHO-Avian were calculated based on the 1998 avian WHO TEF values

b R-1 to R-2 = Tittabawassee and Chippewa rivers reference area; T-3 to T-6 = Tittabawassee River study area; S-7 to S-9 = Saginaw River study area

c Values were rounded and represent only two significant figures

d Arithmetic mean, standard deviation, and 95% confidence limits (CLMs) were not reported for sites with less than 3 samples

Table 6. Descriptive statistics for ΣPCDD/DFs and TEQWHO-Avian (ng/kg ww) by site from food web invertebrate collections for Oligocheata (non-depurated) samples collected within the Chippewa, Tittabawassee, and Saginaw River floodplains during 2004–2006, Midland, Michigan, USA.







ΣPCDD/DFs




TEQWHO-Aviana

Siteb

n

mean±SD

(range)


CLMs

mean±SD

(range)


CLMs



















R-1

4

54±20

(31–74)c



23–85

1.3±0.92

(0.53–2.6)



-0.16–2.8

R-2

2

(56–86)d



(1–2.8)



T-3

2

(1600–1800)



(200–230)



T-4

4

1100±440

(560–1500)



370–1800

280±190

(130–550)



-20–580

T-5

2

(1300–1700)



(120–310)



T-6

4

2500±1700

(950–4700)



-150–5100

330±97

(190–410)



180–490

S-7

2

(1500–2600)



(300–920)



S-9

2

(810–1400)



(44–68)






a TEQWHO-Avian were calculated based on the 1998 avian WHO TEF values

b R-1 to R-2 = Tittabawassee and Chippewa rivers reference area; T-3 to T-6 = Tittabawassee River study area; S-7 to S-9 = Saginaw River study area

c Values were rounded and represent only two significant figures

d Arithmetic mean, standard deviation, and 95% confidence limits (CLMs) were not reported for sites with less than 3 samples

Table 7. Descriptive statistics for ΣPCDD/DFs and TEQWHO-Avian (ng/kg ww) by site from food web invertebrate collections for Orthoptera samples collected within the Chippewa, Tittabawassee, and Saginaw River floodplains during 2004–2006, Midland, Michigan, USA.







ΣPCDD/DFs




TEQWHO-Aviana

Siteb

n

mean±SD

(range)


CLMs

mean±SD

(range)


CLMs



















R-1

2

(12–91)c,d



(0.57–0.63)



R-2

1

10



1.9



T-3

1

55



23



T-4

2

(74–82)



(12–14)



S-7

2

(5.7–85)



(2.1–18)



S-9

1

5.6



1.1






a TEQWHO-Avian were calculated based on the 1998 avian WHO TEF values

b R-1 to R-2 = Tittabawassee and Chippewa rivers reference area; T-3 to T-6 = Tittabawassee River study area; S-7 to S-9 = Saginaw River study area

c Values were rounded and represent only two significant figures

d Arithmetic mean, standard deviation, and 95% confidence limits (CLMs) were not reported for sites with less than 3 samples

Table 8. Descriptive statistics for ΣPCDD/DFs and TEQWHO-Avian (ng/kg ww) by site from food web invertebrate collections for Trichoptera samples collected within the Chippewa, Tittabawassee, and Saginaw River floodplains during 2004–2006, Midland, Michigan, USA.







ΣPCDD/DFs




TEQWHO-Aviana

Siteb

n

mean±SD

(range)


CLMs

mean±SD

(range)


CLMs



















R-1

5

24±13

(13–40)


8.3–40

1.4±0.98

(0.71–3)


0.23–2.7

R-2

5

55±68

(13–180)


-29–140

9.3±16

(0.93–37)



-10–29

T-3

3

170±40

(140–220)



71–270

48±27

(21–74)


-18–110

T-4

4

320±200

(150–520)



7.8–630

100±68

(61–200)


-8.2–210

T-5

4

210±110

(64–310)


34–390

85±63

(22–170)


-16–190

T-6

3

390±180

(230–580)



-54–840

160±96

(91–270)


-79–400

S-7

3

410±170

(250–590)



-11–830

230±140

(130–390)



-110–570

S-8

2

(170–220)d



(97–120)



S-9

1

160



58






a TEQWHO-Avian were calculated based on the 1998 avian WHO TEF values

b R-1 to R-2 = Tittabawassee and Chippewa rivers reference area; T-3 to T-6 = Tittabawassee River study area; S-7 to S-9 = Saginaw River study area

c Values were rounded and represent only two significant figures

d Arithmetic mean, standard deviation, and 95% confidence limits (CLMs) were not reported for sites with less than 3 samples

Table 9. Descriptive statistics for ΣPCDD/DFs and TEQWHO-Avian (ng/kg ww) by site from food web invertebrate collections for Brachycera samples collected within the Chippewa, Tittabawassee, and Saginaw River floodplains during 2004–2006, Midland, Michigan, USA.







ΣPCDD/DFs




TEQWHO-Aviana

Siteb

n

mean±SD

(range)


CLMs

mean±SD

(range)


CLMs



















R-1

1

30c,d



1.5



R-2

1

300



13



T-3

2

(380–2800)



(43–1400)



T-4

2

(280–1200)



(96–490)



T-5

3

1300±900

(500–2300)



-940–3500

640±540

(250–1200)



-690–2000

T-6

1

190



100



S-9

1

150



67






a TEQWHO-Avian were calculated based on the 1998 avian WHO TEF values

b R-1 to R-2 = Tittabawassee and Chippewa rivers reference area; T-3 to T-6 = Tittabawassee River study area; S-7 to S-9 = Saginaw River study area

c Values were rounded and represent only two significant figures

d Arithmetic mean, standard deviation, and 95% confidence limits (CLMs) were not reported for sites with less than 3 samples

Table 10. Descriptive statistics for ΣPCDD/DFs and TEQWHO-Avian (ng/kg ww) by site from food web invertebrate collections for Ephemeroptera samples collected within the Chippewa, Tittabawassee, and Saginaw River floodplains during 2004–2006, Midland, Michigan, USA.







ΣPCDD/DFs




TEQWHO-Aviana

Siteb

n

mean±SD

(range)


CLMs

mean±SD

(range)


CLMs



















R-1

2

(54–2500)c,d



(30–32)



R-2

3

84±38

(60–130)


-10–180

8.4±9.4

(2.8–19)


-15–32

T-3

2

(250–260)



(42–130)



T-4

2

(510–620)



(210–220)



T-5

4

250±62

(190–330)



160–350

84±75

(37–200)


-36–200

T-6

2

(400–480)



(220–290)



S-7

1

340



150



S-8

1

110



37






a TEQWHO-Avian were calculated based on the 1998 avian WHO TEF values

b R-1 to R-2 = Tittabawassee and Chippewa rivers reference area; T-3 to T-6 = Tittabawassee River study area; S-7 to S-9 = Saginaw River study area

c Values were rounded and represent only two significant figures

d Arithmetic mean, standard deviation, and 95% confidence limits (CLMs) were not reported for sites with less than 3 samples


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