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This document presents the process of radon diagnostics and mitigation in schools to help educators determine the best way to reduce elevated radon levels found in a school. The guidebook is designed to guide school leaders through the process of measuring radon levels, selecting the best mitigation strategy, and directing the efforts of a multidisciplinary team in improving the overall indoor-air quality of the school. The book focuses on using a team approach, because effective radon mitigation requires specialized knowledge in several disciplines. EPA has extensively researched two highly successful radon-control strategies: (1) mitigation using active soil depressurization (ASD); and (2) mitigation using the school's ventilation system. Chapters 1 and 2 review what radon is, why it is a concern, and the mechanisms by which it enters and accumulates in a building. Chapters 3 and 4 outline the initial investigation process, in which the condition of the ventilation system is examined to determine whether restoring the ventilation to its intended operating condition could reduce radon levels to below the Environmental Protection Agency's (EPA's) action level. The option of retesting is discussed in the fifth chapter. Chapter 6 discusses the detailed investigation phase that may be necessary if premitigation levels are too high or improving the ventilation system did not sufficiently reduce radon levels. Active subslab depressurization systems are described in chapter 7. The eighth and ninth chapters outline the process of making postmitigation measurements and discuss steps to ensure the long-term effectiveness of the mitigation strategy. Information regarding building codes and worker protection is offered in chapter 10. One table and 21 figures are included. Appendices contain a glossary and list of acronyms, a list of resource organizations, references, metric conversion factors, mitigation cost information, and two case studies based on the experience of EPA's research team. (LMI)

Intended for use in Roman Catholic seminaries to educate in their ecumenical and interfaith responsibilities those in training to become priests, this handbook discusses the manifold implications of Jewish-Christian relations. It is recommended that the topic of Jewish-Christian relations be integrated into the existing areas of seminary study. There are four chapters. Chapter 1 examines the basic perspectives of the Roman Catholic church today regarding Jewish-Christian relations. Chapter 2 raises a few of the interconnected questions concerning Christian-Jewish relations that pertain to biblical studies. Discussed are the Hebrew Scriptures, the New Testament, liturgy and homiletics, church history, catechetics, systematics, and moral theology. The chapter concludes with a curriculum outline that provides a checklist of major topics to be integrated into appropriate courses. The spiritual tradition of Judaism is the topic of chapter 3. The fourth chapter discusses field experiences for inter-religious understanding. A resource bibliography is provided. The appendices contain the Vatican Council II Declaration on the Relation of Church to Non-Christian Religions, 1974 Vatican guidelines, John Paul II's addresses to the Jewish Community (Mainz, 1980) and to representatives of Episcopal conferences (Rome, 1982), and Archbishop John R. Roach's 1981 address before the Synagogue Council of America, "A Renewed Vision of Catholic-Jewish Relations." (RM)