water quality

Presents a discussion of the environmental, economic, and health effects of water pollution and scarcity, and covers conservation efforts and measures such as the Clean Water Act of 1972 and the construction of desalination plants, with commentary by experts and noteworthy case studies.

Addresses concerns people have about drinking water supplies in America and Canada, answering questions about health issues, sources, federal regulations, and other related topics, and including sources of additional information.

Discusses the problem of maintaining a clean water supply and relates this issue to such topics as pollution, depletion of sources, and other environmental concerns.

A guide to measuring water quality that explains how to do nine water quality tests and calculate and assess the results; also includes sections on benthic macroinvertebrates, land use practices and education activities, and international rivers, and provides handouts, data sheets, and a case study of an education program.

An environmental history of the Nashua River, from its discovery by Indians through the polluting years of the Industrial Revolution to the ambitious clean-up that revitalized it.

Scientist Masaru Emoto reveals the findings of his research into the impact positive and negative thoughts and emotions have on the properties of water and ice crystals.

Contains articles in which the authors examine some of the environmental problems facing the world in the twenty-first century, and look at policies that have been adopted to address concerns over land, air and water quality, and climate change at the global, national, state, and local levels.