Unit 1 Ecological Environment 1
Part 1 Ecosystem Biomes 1
Contents 1
Part 2 Ecosystem Pathways 2
Part 3 Ecosystem Producers,Consumers,Decomposers 8
Part 4 Ecosystem-Rock Cycles 10
Part 5 Ecosystem Communication 11
Part 6 Plants That Purify：Nature's Way to Treat Sewage 12
1．Avalanche 16
Unit 2 Environmental Disturbance and Problems 16
Part 1 Destructive Power of Nature 16
2．Tsunami 19
3．E1 Ni？o 21
4．Earthquake 23
5．Flood 25
6．Lightnin 29
7．Volcanoes 31
8．Desertification 34
1．Deforestation 38
Part 2 Destructive Power of Mankind 38
2．Endangered Species 45
Part 3 The Problems We Face 68
1．Population Growth 68
2．Air Pollution 78
3．Water Pollution 91
4．Noise Pollution 108
Introduction to the Damage to Human Health of Air Pollution 112
Unit 3 The Effects of Pollution 112
Part 1 The Effects of Air Pollution on Health 112
1．Outdoor Air and Health 113
2．Indoor Air：Still a Major Threat 116
3．Six Air Pollutants Have the Greatest Impact on the Health of Children and Adults 119
Reading Material：The Health Effects of Air Pollution 127
4．Effects of Air Pollution on Living Organisms and on Materials 129
5．The Effects of the Earth Warming 132
1．Infectious Diseases Associated with Poor Water Quality 136
Part 2 The Effects of Water Pollution 136
2．Impact of Wastewater Irrigation on Health 137
3．The Effcts of Water Pollution in the Great Lakes 138
4．Toxic Effects of Metals in Water Pollution 140
Part 3 The Effects of Solid Wastes 145
1．Hazardous Solid Wastes 145
2．The Relationship Between Climate Change and Solid Waste 146
Introduction 147
Part 4 The Effects of Noise Pollution—Noise pollution：A Health Problem 147
1．Hearing Loss 148
2．Heart Disease 150
3．The Body's Other Reactions 151
4．Noise and the Unborn 152
5．Special Effects on Children 153
6．Intrusion at Home and Work 154
7．Sleep Disruption 156
8．Mental and Social Well-Being 157
9．Danger to Life and Limb 158
10．A Final Word 159
Unit 4 Pollution Control 162
Introduction to Pollution Control 162
Part 1 Environmental Management Systems 164
1．About ISO14000 164
2．About the Kyoto Protocol 168
3．Environment and Economy 172
4．Environmental Management in American 190
5．Information on Hong Kong's Environmental Laws 194
6．Something about Chinese Mainland 197
7．Environmental Related Treaties in WTO 217
Part 2 Pollution Control Engineering 226
1．Methods ofWastewater Treatment 226
Reading Material：Treatment of Slaughterhouse Wastewater in One-stage and in Two-stage UASB Reactors 232
2．Methods of Cleaning Air 238
Reading Material：For Fabric Filters 245
3．Techniques for Removal Pollutants from Soil 248
Reading Material：Cleaning of Mercury Contaminated Soil by Using a Combined Washing and Distillation Process 251
Reading Material：How to Avoid The Harm of Pesticide in America 252