Introductory material about acid rain, 'a broad term used to describe several ways that acids fall out of the atmosphere.' Includes a discussion of how acid rain is caused by pollutants in the environment, how acid rain is measured, and what can be done to reduce acid rain. In English and Spanish. (Copyright 2006 by Librarians' Internet Index)
Reports on 'ongoing comprehensive evaluation of air toxics in the U.S.' Contains the results of an assessment of 1999 air toxics emissions (released in 2006), and an earlier report on 1996 toxic air pollutants.. (Copyright 2006 by Librarians' Internet Index)
