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E-raamat: Quantitative Risk Assessment for Environmental and Occupational Health

  • Formaat: 215 pages
  • Ilmumisaeg: 20-Dec-2018
  • Kirjastus: CRC Press
  • Keel: eng
  • ISBN-13: 9781351084611
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  • Formaat: 215 pages
  • Ilmumisaeg: 20-Dec-2018
  • Kirjastus: CRC Press
  • Keel: eng
  • ISBN-13: 9781351084611
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Many individuals and groups need a usable treatment of the methodology required to assess the human health risks caused by toxicant exposure. This need is shared by industrial hygienists, environmental, occupational and public health professionals, toxicologists, epidemiologists, labor unions, attorneys, regulatory officials, and manufacturers and users of chemicals. The reader needs only a basic knowledge of biology adn algebra in order to utilize the methodology presented. In addition, a basic knowledge of toxicology, epidemiology, and statistics is derisrable for a full understanding of some aspects of risk assessment. Sophisticated computer programs are not required. All the computations can be carried out with a pocked calculator.
Preface vii
Acknowledgments ix
1.0 Introduction 1(8)
W.H. Hallenbeck
1.1 Contents
5(1)
1.2 Methods
6(1)
1.3 Limitations
7(2)
2.0 Exposure Characterization 9(10)
K.M. Cunningham
2.1 Exposure scenario
10(4)
2.2 Material characteristics
14(2)
2.3 Risk group characteristics
16(1)
2.4 Summary
17(2)
3.0 Qualitative Evaluation of Human and Animal Studies 19(24)
W.H. Hallenbeck
K.M. Cunningham
3.1 Control data
20(1)
3.2 Latent period, effective exposure, and followup
21(2)
3.3 Matching of experimental and risk groups
23(2)
3.4 Animal studies: special considerations
25(2)
3.5 Epidemiology studies: special considerations
27(3)
3.6 Classification of toxicants by health effect and dose-response character
30(8)
3.6.1 Carcinogens
31(4)
3.6.2 Germ-cell mutagens
35(2)
3.6.3 Developmental toxicants
37(1)
3.6.4 Organ/tissue toxicants
38(1)
3.6.5 Summary
38(1)
3.7 Data Bases
38(4)
3.7.1 Threshold limit values (TLVs) and permissible exposure limits (PELs)
39(1)
3.7.2 Human data
39(1)
3.7.3 Animal data
40(1)
3.7.4 Units of dose rate
40(1)
3.7.5 Hierarchy of data selection
41(1)
3.8 Summary
42(1)
4.0 Quantitative Evaluation of Human and Animal Studies 43(18)
W.H. Hallenbeck
4.1 Calculation of human dose from animal and human studies
44(4)
4.2 Quantitation of response
48(3)
4.3 Tests of significance
51(5)
4.4 Calculation of control-adjusted test group response
56(1)
4.5 Calculation of the upper limit of control-adjusted test group response
57(4)
5.0 Risk Analysis 61(12)
W.H. Hallenbeck
K.M. Cunningham
5.1 Individual excess risk
61(4)
5.1.1 Experimental dose range
61(1)
5.1.2 Subexperimental dose range
62(1)
5.1.3 Risk factor analysis
63(2)
5.1.4 Plausibility analysis
65(1)
5.2 Excess cases
65(7)
5.2.1 Experimental dose range
65(1)
5.2.2 Subexperimental dose range
66(6)
5.3 Sensitivity analysis
72(1)
6.0 Acceptable Concentrations 73(10)
W.H. Hallenbeck
6.1 Risk analysis method for toxicants with zero thresholds (e.g. carcinogens)
74(3)
6.1.1 Acceptable individual excess risk
74(2)
6.1.2 Acceptable number of excess cases
76(1)
6.2 Safety factor method for toxicants with nonzero thresholds
77(6)
7.0 Example: Environmental and Occupational Exposure to a Hypothetical Industrial Toxicant 83(14)
W.H. Hallenbeck
7.1 Solutions based on a rat study
86(8)
7.1.1 Lowest effective human dose
86(1)
7.1.2 Test and control group response
87(1)
7.1.3 Statistical significance of the difference between test and control group responses
88(1)
7.1.4 Control-adjusted test group response
88(1)
7.1.5 Upper limit of the control-adjusted test group response
88(1)
7.1.6 Maximum dose to an individual in the general population
89(1)
7.1.7 Maximum individual excess risk for the general population and workers
89(1)
7.1.8 Risk factors
90(1)
7.1.9 Maximum individual excess risk for the general population and workers
90(1)
7.1.10 Excess cases and excess cases per year for the general population
90(1)
7.1.11 Excess cases and excess cases per year for workers
91(1)
7.1.12 Acceptable concentrations for the general population
92(1)
7.1.13 Acceptable concentrations for workers
93(1)
7.2 Solutions based on an occupational epidemiology study
94(4)
7.2.1 Lowest effective human dose
94(1)
7.2.2 Test and control group response
95(1)
7.2.3 Statistical significance of the difference between test and control group responses
95(1)
7.2.4 Control-adjusted test group response
96(1)
7.2.5 Upper limit of the control-adjusted test group response
96(1)
7.2.6 Maximum dose to an individual in the general population
96(1)
7.2.7 Maximum individual worker dose
96(1)
7.2.8 Risk factors
96(1)
8.0 Example: Environmental Exposure to a Natural Toxicant, Radon-222 and its Daughters 97(24)
K.M. Cunningham
W.H. Hallenbeck
8.1 Exposure characterization
98(2)
8.2 Evaluation of studies
100(7)
8.2.1 Swedish iron miners study
102(1)
8.2.2 Czechoslovakian uranium miners study
103(1)
8.2.3 Colorado uranium miners study
104(1)
8.2.4 Epidemiological study analyses
104(3)
8.3 Risk analysis
107(5)
8.3.1 Equations for probability
107(1)
8.3.2 Adjustments for latency
108(1)
8.3.3 Calculation of risks
109(1)
8.3.4 Sensitivity analysis
109(3)
8.4 Acceptable exposures
112(1)
8.5 Comparison of results to other estimates of risk
113(2)
8.6 Sources of uncertainty
115(1)
8.7 Public health and regulatory implications
116(2)
8.8 Summary
118(1)
8.9 Conclusions
119(2)
References 121(11)
Appendices 132(63)
1 Lower 1% and Upper 99% Limits for a Binomial Variable
133(40)
2 Glossary of Terms, Abbreviations, and Acronyms
173(6)
3 Equations
179(4)
4 U.S. Food and Drug Administration Risk Analysis Method for Carcinogens
183(2)
5 Physical and Radiological Characteristics of Radon and Radon Daughters
185(4)
6 Definitions of Radiological Terms
189(2)
7 Calculation of Working Level Months
191(4)
Index 195
Hallenbeck, William H.