Assessing Toxic Risk: Teachers Guide and Student Edition

by Trautmann, Nancy M.; Carlsen, William S.; Krasny, Marianne E.; Cunningham, Christine; Trautmann, Nancy M.; Carroll, Patricia; National Science Teachers Association Environmental Inquiry leadership

• ISBN13: 9780873551960
• ISBN10: 0873551966
• Format: Paperback
• Copyright: 2002-02-01
• Publisher: Natl Science Teachers Assn

Table of Contents

Preface	vii
sciLINKS	ix
Section 1. Understanding Toxic Risk	1	(38)
The Dose Makes the Poison	3	(12)
Any Chemical Can Be Toxic	3	(1)
Are Natural Chemicals Safer?	4	(1)
How Much Is Too Much?	4	(6)
Dose/Response Bioassays	5	(1)
Comparing Chemical Toxicities	6	(4)
Long-Term versus Short-Term Toxicity	10	(1)
Testing Chronic Toxicity	11	(1)
Conclusion	12	(1)
For Discussion	12	(1)
Toxicity Calculations	13	(2)
From Data to Standards	15	(6)
Setting Drinking Water Standards	15	(4)
From Data to Standards	19	(1)
For Discussion	20	(1)
What's the Risk?	21	(6)
How Safe Is Safe Enough?	22	(1)
What Are the Trade-Offs?	23	(3)
One Risk versus Another	23	(2)
Risk versus Cost	25	(1)
For Discussion	26	(1)
Ecological Risks	27	(6)
Effects of Chemical Properties	28	(2)
Testing Environmental Impacts of New Compounds	30	(2)
For Discussion	32	(1)
Using Bioassays for Environmental Research	33	(6)
Bioassay Species	34	(1)
Concentration versus Dose	35	(1)
An Introduction to Experimental Design	35	(1)
Interpreting Bioassay Results	36	(1)
For Discussion	37	(1)
References	37	(2)
Section 2. Toxicology Protocols: Introduction to Research	39	(40)
Toxicology Protocols	41	(34)
Protocol 1. Serial Dilutions	41	(2)
Protocol 2. Dose/Response Experiments Using Lettuce Seeds	43	(8)
Protocol 3. Dose/Response Experiments Using Duckweed	51	(7)
Protocol 4. Dose/Response Experiments Using Daphnia	58	(6)
Protocol 5. Testing Environmental Samples Using Bioassays	64	(2)
Protocol 6. Preparing Water Treatment Columns	66	(3)
Protocol 7. Chemical Classification of Toxicants	69	(6)
Worksheets for Protocols	75	(4)
Protocol Planning Sheet	76	(2)
Data Analysis Peer Review Form	78	(1)
Section 3. Beyond Protocols: Conducting Interactive Research	79	(2)
Ideas for Bioassay Research	81	(1)
Dose/Response Bioassays	81	(1)
Bioassays on Environmental Samples	82	(1)
Detoxification/Classification Experiments	83	(1)
Other Possibilities	84	(5)
Worksheets for Interactive Research	89	(1)
Forms for Planning Research	90	(1)
Choosing a Research Topic	90	(3)
Interactive Research Planning Sheet #1	93	(2)
Interactive Research Planning Sheet #2	95	(5)
Presenting Research Results	100	(1)
Bioassays Research Report Form	100	(3)
Poster Design Guidelines	103	(1)
Peer Review Forms	104	(1)
Experimental Design Peer Review Form	104	(1)
Research Report Peer Review Form	105	(1)
Poster Peer Review Form	106