Water supply & treatment.

Long Island Sound is not only the most heavily used estuary in North America, it is also one of the most beautiful waterways, with picturesque seascapes and landfalls. But centuries of pollution and other abuse have gradually been killing off its marine life and have pushed the Sound to the brink of disaster. This fascinating book traces the history of the Sound and its use as a resource from the time of contact between the Native Americans and Dutch traders through the suburban sprawl of recent decades--and tells how a group of scientists and citizens has been working to save the Sound from ruin. Tom Andersen begins by describing the dramatic events of the summer of 1987, when a condition called hypoxia (lack of dissolved oxygen in the water brought about by a combination of pollution and other factors) killed large numbers of fish and lobsters in the Sound. He discusses how scientists first documented and explained the development of hypoxia and how research and cleanup are now being carried out to restore the Sound. Interweaving current events, natural history, and human history, Andersen presents a cautionary tale of exploitation without concern for preservation.

When the people of Flint, Michigan, turned on their faucets in April 2014, the water pouring out was poisoned with lead and other toxins. Through a series of disastrous decisions, the state government had switched the city’s water supply to a source that corroded Flint’s aging lead pipes. Complaints about the foul-smelling water were dismissed: the residents of Flint, mostly poor and African American, were not seen as credible, even in matters of their own lives. It took eighteen months of activism by city residents and a band of dogged outsiders to force the state to admit that the water was poisonous. By that time, twelve people had died and Flint’s children had suffered irreparable harm. The long battle for accountability and a humane response to this man-made disaster has only just begun. In the first full account of this American tragedy, Anna Clark's The Poisoned City recounts the gripping story of Flint’s poisoned water through the people who caused it, suffered from it, and exposed it. It is a chronicle of one town, but could also be about any American city, all made precarious by the neglect of infrastructure and the erosion of democratic decision making. Places like Flint are set up to fail—and for the people who live and work in them, the consequences can be fatal.

Fine Sediment in Open Water is mainly written for professional engineers working in estuaries and coastal systems. It provides the basis for a fundamental understanding of the physical, biological and chemical processes governing the transport and fate of fine sediment in open water and explains how this understanding can steer engineering studies with numerical models. This is a unique treatment of processes at a variety of spatial and temporal scales, from the micro-scale (colloid scale) to system-wide scales, and from intra-tidal time periods to decades.Beginning with the processes governing the transport and fate of fine sediment in shallow open water, the first eight chapters are dedicated to the hydrodynamic, soil mechanics and biological processes which determine fine sediment concentrations in the water column, in/on the bed and the exchange of sediment between bed and water column. The next two chapters treat the net fluxes of fine sediment as a function of asymmetries in forcing and sediment properties. These fundamental processes form the basis for the subsequent chapters on modeling in which the governing equations are presented, and tools are provided to aggregate and parameterize the various processes elaborated in the first eight chapters. Further, any numerical model study should be based on a conceptual model, as illustrated in the final five chapters, which provide examples of numerical modeling studies on the transport and fate of fine sediment in a coastal sea, an estuary, a tidal river, a lake, and around and within a harbor basin.Related Link(s)

Miss Marigold, the garden lady, visits Pepper Lane Elementary to help them transform a weedy, rocky patch of ground into a garden.

From nineteenth-century public baths to today's private backyard havens, swimming pools have long been a provocative symbol of American life. In this social and cultural history of swimming pools in the United States, Jeff Wiltse relates how, over the years, pools have served as asylums for the urban poor, leisure resorts for the masses, and private clubs for middle-class suburbanites. As sites of race riots, shrinking swimsuits, and conspicuous leisure, swimming pools reflect many of the tensions and transformations that have given rise to modern America.