IAQ investigators are given the tools to conduct thorough IAQ investigations, be knowledgeable about ventilation system components, occupant concerns and symptoms, sources of chemical and biological contaminants, IAQ sampling methods, interpreting sampling data, and current IAQ guidelines, standards and practices. Causes and solutions for common IAQ problems are given, along with guidance for special environments, and practical resources (checklists and forms) to help resolve IAQ problems.

This book presents WHO guidelines for the protection of public health from risks due to a number of chemicals commonly present in indoor air. The substances considered in this review, i.e. benzene, carbon monoxide, formaldehyde, naphthalene, nitrogen dioxide, polycyclic aromatic hydrocarbons (especially benzo[a]pyrene), radon, trichloroethylene and tetrachloroethylene, have indoor sources, are known in respect of their hazardousness to health and are often found indoors in concentrations of health concern. The guidelines are targeted at public health professionals involved in preventing health risks of environmental exposures, as well as specialists and authorities involved in the design and use of buildings, indoor materials and products. They provide a scientific basis for legally enforceable standards.

Indoor Air Quality: The Latest Sampling and Analytical Methods, Third Edition is a practical, user-friendly guide to the identification and assessment of the indoor air contaminants that contribute to building-related illness in commercial buildings, institutions, and residences. It covers the basic concepts of indoor air quality assessment, including its historic evolution. The book describes the most common substances encountered in an indoor air quality investigation, their health effects, and their occurrence in the environment. Drawing from the author’s experience, observations, and extensive research, this easy-to-read guide provides readers with a working knowledge of the latest approaches to sampling protocols and cutting-edge trends as well as suggested sampling strategies, helpful experience related tips, and a means for interpreting results. Additionally, in the later part of the book, there is considerable discussion of failure modes of building materials and systems—sources of many indoor air quality problems! This third edition details up-to-date strategies and analytical methods and addresses some of the more recent, as well as less common, concerns on indoor air pollutants. All chapters in the third edition have been updated to adhere to the more recent developments in indoor air quality. Also a new chapter on the illusive data and sampling approaches on ozone has been added. New in the Third Edition Revised and updated standards and guidelines Updated U.S. EPA NAAQS Updated LEEDv4 Standard Updated ANSI/ASHRAE Standard 189.1 Latest approaches to sampling and analytical methods Expanded discussion on controversial inhalable airborne particulate sampling methods Updated and expanded tables and data Updated and expanded figures and schematics Inclusion of a new chapter on ozone

The main objective of these updated global guidelines is to offer health-based air quality guideline levels, expressed as long-term or short-term concentrations for six key air pollutants: PM2.5, PM10, ozone, nitrogen dioxide, sulfur dioxide and carbon monoxide. In addition, the guidelines provide interim targets to guide reduction efforts of these pollutants, as well as good practice statements for the management of certain types of PM (i.e., black carbon/elemental carbon, ultrafine particles, particles originating from sand and duststorms). These guidelines are not legally binding standards; however, they provide WHO Member States with an evidence-informed tool, which they can use to inform legislation and policy. Ultimately, the goal of these guidelines is to help reduce levels of air pollutants in order to decrease the enormous health burden resulting from the exposure to air pollution worldwide.

Built on existing WHO indoor air quality guidelines for specific pollutants, these guidelines bring together the most recent evidence on fuel use, emission and exposure levels, health risks, intervention impacts and policy considerations, to provide practical recommendations to reduce this health burden.