ii Notice The material in this document has been subjected to U.S. Environmental Protection Agency (EPA) technical review and has been approved for publication as an EPA document. The information contained herein is offered to the reader as a review of the " state of the science " concerning wetland bioassessment and nutrient enrichment and is not intended to be prescriptive guidance or firm ad...

The people of the United States and world owe Environmental Protection Agency (U.S. EPA) a debt gratitude for preserving, protecting, defending human health environment past half century. As we celebrate 50th anniversary founding U.S. EPA, there are two truths about agency that difficult to deny: (1) EPA its constitute renowned has greatly improved both environmental public in States, served as...

The Environmental Protection Agency needs a mission statement. It needs this mission statement for a variety of reasons, not the least of which is to enhance the development and use of science pertinent to protecting the environment. Given the constraints of our nation's deeply legalistic approach to environmental problems, the amount of scientific information that has been developed and incorp...

Cornell University. It is intended to serve as a basis for class discussion rather than to illustrate the effective or ineffective handling of an administrative situation. No part of this publication may be reproduced, stored in a retrieval system, used in a spreadsheet, or transmitted in any form by any means without permission by the ACS Green Chemistry Institute®. These materials were develo...

Each year, 115 million tons of coal combustion products (CCPs) are produced in the United States, 90% of them by electric utilities. CCPs are mainly ash, usually mixed with wastes from pollution control scrubbers (consisting of particulate matter and neutralizing lime), coal piles, and other sources. In 1993, the U.S. Environmental Protection Agency (EPA) exempted pure coal ash from Subtitle C ...

Cornell University. It is intended to serve as a basis for class discussion rather than to illustrate the effective or ineffective handling of an administrative situation. No part of this publication may be reproduced, stored in a retrieval system, used in a spreadsheet, or transmitted in any form by any means without permission by the ACS Green Chemistry Institute®. These materials were develo...

In the September 1, 1994, Federal Register (59 FR 45526), the Environmental Protection Agency (EPA) proposed at 40 CFR Part 700 under section 5(h)(4) of the Toxic Substances Control Act (TSCA), Tier I and Tier II exemptions. These exemptions, which would be found at § 725.400, are exemptions from EPA review and expedited EPA review, respectively, for certain microorganisms under certain use con...

Introduction Lung cancer is the leading cause of cancer death in the U.S. with radon exposure as the second leading cause of lung cancer after smoking and the number one cause of lung cancer among nonsmokers. The Environmental Protection Agency (EPA) estimates that one in fifteen homes nationwide has elevated radon levels. Although public outreach efforts promote radon testing and subsequent mi...

ACToR (Aggregated Computational Toxicology Resource) is a database and set of software applications that bring into one central location many types and sources of data on environmental chemicals. Currently, the ACToR chemical database contains information on chemical structure, in vitro bioassays and in vivo toxicology assays derived from more than 150 sources including the U.S. Environmental P...

The federal government has charged the Environmental Protection Agency (EPA) with the responsibility of controlling and/or reducing the adverse levels of vehicle emissions, which result in unacceptable amounts of environmental pollution nationwide. In order to achieve this goal, the EPA, in turn, has mandated the installation of control technology in newer vehicles and more environmentally frie...