Visualizing Environmental Science

86 CHAPTER 4 Risk Analysis and Environmental Health Hazards Environmental contaminants are linked to many serious health concern ...

92 CHAPTER 4 Risk Analysis and Environmental Health Hazards For example, soy-based foods such as bean curd and soymilk contain n ...

Determining Health Effects of Pollutants 87 Risk assessment assumes that we can extrapolate (work backward) from the huge doses ...

Summary 93 Summary 1 A Perspective on Risks 74 A risk is the probability of harm (such as injury, disease, death, or environmen ...

88 CHAPTER 4 Risk Analysis and Environmental Health Hazards is, they add the known effects of each compound in the mixture. Such ...

94 CHAPTER 4 don’t know to avoid exposures, children are generally more susceptible to chemicals. The potentially lethal dose fo ...

Determining Health Effects of Pollutants 89 body weight as an adult. This means that a child also breathes more air pollutants i ...

Critical and Creative Thinking Questions 95 ✓✓THE PLANNER Which risk—an extremely small amount of a cancer-causing chemical in ...

substance. The precautionary principle might require that all new industrial chemicals be tested for acute and chronic toxicity ...

5 How Ecosystems Work SOLVING LAKE WASHINGTON’S ECOLOGICAL IMBALANCE L ake Washington is a large, deep freshwater lake on the ea ...

The Precautionary Principle 91 Raymond Gehman/NG Image Collection *ÀiV>Ṏœ˜>ÀÞÊ«Àˆ˜Vˆ«iʜÀÊiVœ˜œ“ˆVÊ«ÀœÌiV̈œ˜ˆÃ“¶ÊUʈ} ...

97 150 200 250 100 50 0 1955 1960 1965 1970 Dissolved phosphorus(10 3 Kilograms per year) 1975 Ye a r Total dissolved phosphorus ...

92 CHAPTER 4 Risk Analysis and Environmental Health Hazards For example, soy-based foods such as bean curd and soymilk contain n ...

98 CHAPTER 5 How Ecosystems Work with one another in the wild to produce fertile off- spring; members of one species generally d ...

Summary 93 Summary 1 A Perspective on Risks 74 A risk is the probability of harm (such as injury, disease, death, or environmen ...

What Is Ecology? 99 forest ecosystem and a pond ecosystem located adjacent to the forest. One possible connection between these ...

94 CHAPTER 4 don’t know to avoid exposures, children are generally more susceptible to chemicals. The potentially lethal dose fo ...

100 CHAPTER 5 How Ecosystems Work Summarize how energy flows through a food web and transfers between trophic levels. Distingui ...

Critical and Creative Thinking Questions 95 ✓✓THE PLANNER Which risk—an extremely small amount of a cancer-causing chemical in ...

The Flow of Energy Through Ecosystems 101 plants absorb the radiant energy of the sun and convert it into the chemical energy co ...