WATER COLUMN TOXICITY DATA PROBIT CALCULATION OF LC50

WATER COLUMN TOXICITY DATA

PROBIT CALCULATION OF LC50

Probit Procedure

Probit Analysis on CONC

Probability

CONC

95 % Fiducial Limits

0.01

2.16588

0.83778

3.89622

0.02

3.14719

1.36817

5.27970

0.03

3.98923

1.86664

6.40567

0.04

4.76811

2.35721

7.41100

0.05

5.51255

2.84909

8.34642

0.06

6.23706

3.34701

9.23734

0.07

6.95026

3.85383

10.09863

0.08

7.65778

4.37154

10.93999

0.09

8.36359

4.90156

11.76819

0.10

9.07066

5.44504

12.58822

0.15

12.69305

8.39374

16.68045

0.20

16.57847

11.78589

20.95732

0.25

20.84700

15.68333

25.63096

0.30

25.60925

20.12970

30.92460

0.35

30.98818

25.14636

37.12550

0.40

37.13337

30.73745

44.61613

0.45

44.23644

36.92049

53.88635

0.50

52.55218

43.77361

65.54785

0.55

62.43114

51.46951

80.39802

0.60

74.37329

60.29232

99.56802

0.65

89.12208

70.66773

124.78810

0.70

107.84114

83.24102

158.87767

0.75

132.47618

99.05248

206.76309

0.80

166.58541

119.94013

277.89384

0.85

217.57820

149.60065

393.04744

0.90

304.46875

197.14864

609.23099

0.91

330.20877

210.68655

677.42467

0.92

360.64379

226.42966

760.25126

0.93

397.35639

245.07841

863.13948

0.94

442.79353

267.69998

994.69564

0.95

500.98996

296.02506

1170

0.96

579.20826

333.10952

1415

0.97

692.29671

385.05880

1788

0.98

877.52308

466.75313

2442

0.99

1275

631.81918

3992

L.4.2 Program BIOACC.SAS for bioaccumulation test data analysis

BIOACC.SAS is a program to compare bioaccumulation data from dredged

materials or other treatments with a reference, using raw data or log10

transformation. Included in these analyses are: mean bioaccumulation from each

exposure, Shapiro-Wilk's Test for normality, Levene's Test for equality of

variances, t-tests for equal or unequal variances, LSD test, and tests on rankits

(normalized ranks for contaminant concentration). Refer to the decision tree in

Figures L-4A and 4B to determine which test results should be used. The

program includes power calculations for an LSD test on untransformed

bioaccumulation data.

L48

Appendix L Selected Resource Documents