270 Index
important waterborne pathogenic
microorganisms, 165
main source of contamination,
166
sanitary ordinances, 166
viruses, 165
phosphorous and nitrogen
(eutrophication), 161–165
accumulation of radioactivity, 165
ammonium nitrogen, 162
biomagnification, 165
compensation point, 164
decomposing microorganisms, 162
emergence of toxicity, 164
euphotic zone, 164
eutrophication, 164
less clarity, 164
limiting factor, 163
nutritive salts, 163
oxygen depletion, 164
photosynthesis, 163
poisoning cases, 164–165
scum creation, 165
self-perpetuating eutrophication,
164
sources and impacts of water
pollution, 159–160
aesthetic impacts, 159
ecological impacts, 159
groundwater, 160
hygienic impacts, 159
marine transport, 159
oxygen saturation concentration,
160
surface waters, 160
urban activities, 159
thermal pollution, 168
regulations, 168
US EPA recommendation, 168
wastewater from power stations,
168
toxic water pollutants, 166–167
acid rain, 166
agriculture, 166
biomagnification, 166
boron, 167
chlorine, 167
industry, 166
sources of toxic substances, 166
Watershed, 94–95, 99
Welfare State, 47, 230
Wetlands
coastal, 101–102
drainage of, 107
Mediterranean coastal, 104
Wildlife, omnipresence of, 132
Wind erosion, 95
z
Zinc, 148–149
Zooplankton, 54