The sources of dangerous chemicals in schools are not always obvious. This guidance applies to any school that purchases, uses, stores, or disposes of chemicals or products containing dangerous materials. Some of the most common dangerous chemical products in schools include: Laboratory chemicals (e.g., acids, bases, solvents, metals, salts) Industrial arts or "shop" classes (e.g., inks, degreasers) Art supplies (e.g., paints, photographic chemicals) Pesticides, fertilizers, and de-icers Maintenance supplies and equipment (e.g., drain cleaners, floor stripping products, paints, oils, boiler...

This Handbook provides descriptive background information and general guidance on how to access and use data from the National Health and Nutrition Examination Surveys (NHANES). This is an enormous human database that can be used to develop information suitable for use in risk assessments, and to support regulatory and policy needs of EPA. For more than 30 years, EPA has been one of many collaborating agencies that help plan and support funding of data collection through NHANES. Because only a limited number of Agency managers and staff are aware of the content and availability of this rich...