Introduces the characteristics and importance of air.

When it's not windy, it can be easy to forget about air. But air is everywhere–it fills your house, your car, and even your empty milk glass. In fact, a regular room holds about 75 pounds of it! This Level 1 book, reillustrated with John O'Brien's clever, eye–catching illustrations, tells you how to discover the air that's all around you.

This book presents revised guideline values for the four most common air pollutants - particulate matter, ozone, nitrogen dioxide and sulfur dioxide - based on a recent review of the accumulated scientific evidence. The rationale for selection of each guideline value is supported by a synthesis of information emerging from research on the health effects of each pollutant. As a result, these guidelines now also apply globally. They can be read in conjunction with Air quality guidelines for Europe, 2nd edition, which is still the authority on guideline values for all other air pollutants. As well as revised guideline values, this book makes a brief yet comprehensive review of the issues affecting the application of the guidelines in risk assessment and policy development. Further, it summarizes information on: . pollution sources and levels in various parts of the world, . population exposure and characteristics affecting sensitivity to pollution, . methods for quantifying the health burden of air pollution, and . the use of guidelines in developing air quality standards and other policy tools. Finally, the special case of indoor air pollution is explored. Prepared by a large team of renowned international experts who considered conditions in various parts of the globe, these guidelines are applicable throughout the world. They provide reliable guidance for policy-makers everywhere when considering the various options for air quality management.

A collection of poems for elementary students about the science of air, including oxygen, wind, hurricanes, and tornadoes.

Ingredient X: The Production of Effective Drugs deals with various aspects of pharmaceutical research and development, with emphasis on the importance of formulation ingredients on drug effectiveness and the role of the pharmaceutical development scientist in designing dosage forms for modern drugs. More than 50 illustrations are used to explain experiments and ""tools of the trade"". This book is comprised of four chapters and opens with an overview of research and development in the pharmaceutical industry, paying particular attention to the kind of work done by scientists according to the degree or level of training. The additives or so-called ""inert"" ingredients used in drug formulation are also considered. The next chapter explains how adding just the right amount of some ""inert"" ingredient—a factor X—can enhance the acceptability of a product to the user. The importance of maintaining drug potency in a dosage form, mainly through refrigeration or storage in cool places, is then discussed. The final chapter looks at the factors to consider to achieve the best possible drug formulation and most effective dosage form, including the safety factor. The need to establish correlations between laboratory quality tests and product performance during the development phase is highlighted. This monograph will be a useful resource for pharmacologists and pharmaceutical development scientists.

Clean air is essential for all living creatures—plants, animals, and people—to live healthy lives. Every Breath We Take is a positive, life-affirming look at clean air, with a subtle message about how air can be dirtied—and how it can be cleaned up. Photographs of beautiful children around the world exploring air through touch, smell, sound, and sight underscore the importance of clean air to all life on earth. This is science that surrounds us. The first step to cherishing something is recognizing its importance and understanding why it is necessary. A portion of the proceeds from the sales of this book will be donated to Moms Clean Air Force, a national movement of over a half million moms, dads, and grandparents who are protecting the right of every child to breathe clean air.