Previous research has clearly established associations between low socioeconomic status (SES) and poor youth physical health outcomes. This article provides an overview of the main pathways through which low SES environments come to influence youth health. We focus on 2 prevalent chronic health problems in youth today, asthma and obesity. We…

Analyzes a simple model relating environmental pollution to population and per capita income and concludes that no single cause is sufficient to explain.... environmental problems, and that there is little about the pollution problems.... of the next 50 years that is inevitable." (Author/AL)

Despite the abundance, persistence, and worldwide distribution of DDT residues, they are not as freely available to the biota as might be assumed....Mere good fortune has protected man and the rest of the biota from much higher concentrations." (Author/AL)

This paper proposes that any depth of understanding of environmental indices (and therefore, their determination) can be achieved only through the establishment of the evolutionary paradigm as the fundamental basis of all the environmental-biological problems Man encounters. Evolutionary theory could be used in the understanding of other parametal…

Reports a test of the stability of the model used in Jay Forrester's World Dynamics''. When Forrester's fundamentally Malthusian assumptions were replaced by technological-optimist views, computer simulations predicted a stable population with increasing quality of life, rather than a population crash and decreasing quality of life. (AL)

A model estimating the contributions of sulfur compounds by natural and human activities, and the rate of removal of sulfur from the atmosphere, is based on a review of the existing literature. Areas requiring additional research are identified. (AL)

Major consequences of present and additional environmental quantities of DDT pesticide are predictable by mathematical models of transport, accumulation and concentration mechanisms in the Wisconsin regional ecosystem. High solubility and stability produce increased DDT concentrations at high organism trophic levels within world biosphere…

The Regional Air Pollution Study (RAPS) to be conducted in St. Louis, is the largest air monitoring program of the Environmental Protection Agency. A key segment will be the collection of a data base on which this system of mathematical models can be tested and upon which submodels can be validated. (BL)

Presents several conceptual models dealing with issues in environmental education. Models described are: (1) Population/Resources/Pollution, (2) Cause-and-Effect Analysis, and (3) Ethical Analysis. (CS)

This article discusses the need for more accurate and complete input data and field verification of the various models of air pollutant dispension. Consideration should be given to changing the form of air quality standards based on enhanced dispersion modeling techniques. (Author/RE)

Interventions to address current, future, and potential public health dilemmas, such as air pollution, urban sprawl, brown field reclamation, and threats of intentional toxic exposures would benefit from a synergy between the disciplines of environmental health and health education. A comparison between the Protocol for Assessing Community…

This article focuses on content of the United States' Department of State Study called the Global 2000 Report issued by the Carter Administration on July 24, 1980. The report discusses the present trends which will lead to a more crowded, more polluted world, vulnerable to disruption. (Author/SA)

The increasingly important role of transportation and its environmental impact is given major emphasis in this curriculum unit for secondary students. Four purposes of this unit are to describe and show (1) the historical development of transportation in America; (2) the effect of current transportation practices upon the environment; (3) some…