Reducing Environmental Cancer Risk

Though overall cancer incidence and mortality have continued to decline in recent years, cancer continues to devastate the lives of far too many Americans. In 2009 alone, 1.5 million American men, women, and children were diagnosed with cancer, and 562,000 died from the disease. There is a growing body of evidence linking environmental exposures to cancer. The Pres. Cancer Panel dedicated its 2008¿2009 activities to examining the impact of environmental factors on cancer risk. The Panel considered industrial, occupational, and agricultural exposures as well as exposures related to medical practice, military activities, modern lifestyles, and natural sources. This report presents the Panel¿s recommend. to mitigate or eliminate these barriers. Illus.

This report considers the biological and behavioral mechanisms that may underlie the pathogenicity of tobacco smoke. Many Surgeon General's reports have considered research findings on mechanisms in assessing the biological plausibility of associations observed in epidemiologic studies. Mechanisms of disease are important because they may provide plausibility, which is one of the guideline criteria for assessing evidence on causation. This report specifically reviews the evidence on the potential mechanisms by which smoking causes diseases and considers whether a mechanism is likely to be operative in the production of human disease by tobacco smoke. This evidence is relevant to understanding how smoking causes disease, to identifying those who may be particularly susceptible, and to assessing the potential risks of tobacco products.

Skin cancer is the most commonly diagnosed cancer in the United States, yet most cases are preventable. Every year in the United States, nearly 5 million people are treated for skin cancer, at an estimated cost of $8.1 billion. Melanoma, the most deadly form of skin cancer, causes nearly 9,000 deaths each year. Despite recent efforts to address risk factors, skin cancer rates continue to rise. While those with lighter skin are more susceptible, anyone can get skin cancer—and it can be serious, even deadly. Almost all of the conditions can be caused by unnecessary ultraviolet (UV) radiation exposure, usually from excessive time in the sun or from the use of indoor tanning devices. It is alarming that every year, nearly one out of every three young white women aged 16–25 engages in indoor tanning. It's important to shatter the myth that tanned skin is a sign of health. And a “base” tan is not a “safe” tan. Tanned skin is damaged skin. Understanding the risk of UV exposure is crucial to protecting ourselves and our loved ones. That is why “The Surgeon General's Call to Action to Prevent Skin Cancer” is important for all of us. It outlines action steps we can all take—as individuals, parents, educators, employers, policy makers, health care professionals, and communities—to reverse this alarming trend. As a nation, we can all do more to address skin cancer as a serious public health challenge. Everyone is urged to find out more about the risk of skin cancer—and what we all can do to prevent it.

You cannot see, smell or taste radon. But it still may be a problem in your home. When you breathe air containing radon, you increase your risk for respiratory issues. Radon has been classified as a known human carcinogen and has been recognized as a significant health problem by groups such as the Centers for Disease Control, the American Lung Association, the American Medical Association, and the American Public Health Association. As such, risks from in-home radon exposure have been a major concern for the EPA. The "Consumer's Guide to Radon Reduction: How to Fix Your Home" Contains information about home radon mitigation: radon reduction techniques and radon reduction systems.

Risk assessment has become a dominant public policy tool for making choices, based on limited resources, to protect public health and the environment. It has been instrumental to the mission of the U.S. Environmental Protection Agency (EPA) as well as other federal agencies in evaluating public health concerns, informing regulatory and technological decisions, prioritizing research needs and funding, and in developing approaches for cost-benefit analysis. However, risk assessment is at a crossroads. Despite advances in the field, risk assessment faces a number of significant challenges including lengthy delays in making complex decisions; lack of data leading to significant uncertainty in risk assessments; and many chemicals in the marketplace that have not been evaluated and emerging agents requiring assessment. Science and Decisions makes practical scientific and technical recommendations to address these challenges. This book is a complement to the widely used 1983 National Academies book, Risk Assessment in the Federal Government (also known as the Red Book). The earlier book established a framework for the concepts and conduct of risk assessment that has been adopted by numerous expert committees, regulatory agencies, and public health institutions. The new book embeds these concepts within a broader framework for risk-based decision-making. Together, these are essential references for those working in the regulatory and public health fields.