United States register, or blue book.

Description based on: 1873.

State implementation of federal standards : hearing before the Subcommittee on Intergovernmental Relations of the Committee on Governmental Affairs, United States Senate, Ninety-seventh Congress, first session.

"November 24, 1981"--Pt. 3.

The case for national environmental laboratories; a report prepared for the use of the Committee on Public Works, United States Senate,

"S. 3410, a bill to establish a structure that will provide integrated knowledge and understanding of the ecological, social, and technological problems associated with air pollution, water pollution, solid waste disposal, general pollution, and degradation of the environment, and other related problems": p. 31-40.

"Right forward, fours right, march!" : a little story of Company I, Third Wisconsin Volunteers, First Brigade, First Division, First Corps /

Mode of access: Internet.

Hardtack and coffee, or, The unwritten story of Army life /

Reprint. Originally published: Boston : G.M. Smith, 1887.

Reports of army engineers upon the proposed canals connecting Lake Erie with the Ohio River and with Lake Michigan.

Report on the proposed canal from Lake Erie to the Ohio River / by H.C. Newcomer -- Report on the proposed canal from Lake Michigan to Lake Erie / by G.A. Zinn -- Appendix A. Business for canal -- Appendix B. The proposed Michigan & Erie canal an indispensable part of the great east-and-west main water route / by F.B. Taylor -- Appendix C. Description of harbors.

Report of the Chief of Engineers U.S. Army

Mode of access: Internet.

America's munitions 1917-1918.

Most plates printed on both sides.

Study to evaluate the adequacy and predictive value of fish and wildlife planning recommendations at Corps of Engineers reservoir projects : individual reservoir project evaluation reports : the Pat Mayse Lake project /

"July 1983"--Cover.

A history update of the U.S. Army Engineer Topographic Laboratories, Fort Belvoir, Virginia, 1984-1988 /

Shipping list no.: 94-0371-P.

Adequacy and predictive value of fish and wildlife planning recommendations at Corps of Engineers reservoir projects /

Mode of access: Internet.

Trends in waterborne commerce of the United States /

Includes bibliographical references.

Interim report of the Secretary of the Army on the pilot wastewater management program.

Appendices issued separately.

The Evolution of Chimpanzee Sanctuaries in the United States

Chimpanzees are native only to the jungles of equatorial Africa, but for the last hundred years, they have also lived in captivity in the United States, most commonly in biomedical research laboratories, but also at Air Force bases for experiments for the space program, at accredited and unaccredited zoos, at circuses, as performers in Hollywood and even in private homes and backyards as pets. But that has been gradually evolving over the last few decades, as more and more chimpanzees move to newly-established chimpanzee sanctuaries. That transition was already underway even before the announcement by the National Institutes of Health (NIH) last year that it will retire all of its remaining chimpanzees from labs to sanctuaries. By thoroughly examining the evolution of these sanctuaries leading up to that seminal decision, along with the many challenges they face, including money, medical care, conflicting philosophies on the treatment of animals and the pitfalls that have led other sanctuaries to the brink of ruin, we can take away a better understanding of why chimpanzee sanctuaries are needed and why caretakers of other animal species are now looking to the chimpanzee sanctuary movement as a model to show how animals can be cared for in retirement.

OBSERVATIONS AND EMISSIONS OF ENERGY-ASSOCIATED OZONE PRECURSORS IN THE MID-ATLANTIC UNITED STATES

Surface ozone is formed in the presence of NOx (NO + NO2) and volatile organic compounds (VOCs) and is hazardous to human health. A better understanding of these precursors is needed for developing effective policies to improve air quality. To evaluate the year-to-year changes in source contributions to total VOCs, Positive Matrix Factorization (PMF) was used to perform source apportionment using available hourly observations from June through August at a Photochemical Assessment Monitoring Station (PAMS) in Essex, MD for each year from 2007-2015. Results suggest that while gasoline and vehicle exhaust emissions have fallen, the contribution of natural gas sources to total VOCs has risen. To investigate this increasing natural gas influence, ethane measurements from PAMS sites in Essex, MD and Washington, D.C. were examined. Following a period of decline, daytime ethane concentrations have increased significantly after 2009. This trend appears to be linked with the rapid shale gas production in upwind, neighboring states, especially Pennsylvania and West Virginia. Back-trajectory analyses similarly show that ethane concentrations at these monitors were significantly greater if air parcels had passed through counties containing a high density of unconventional natural gas wells. In addition to VOC emissions, the compressors and engines involved with hydraulic fracturing operations also emit NOx and particulate matter (PM). The Community Multi-scale Air Quality (CMAQ) Model was used to simulate air quality for the Eastern U.S. in 2020, including emissions from shale gas operations in the Appalachian Basin. Predicted concentrations of ozone and PM show the largest decreases when these natural gas resources are hypothetically used to convert coal-fired power plants, despite the increased emissions from hydraulic fracturing operations expanded into all possible shale regions in the Appalachian Basin. While not as clean as burning natural gas, emissions of NOx from coal-fired power plants can be reduced by utilizing post-combustion controls. However, even though capital investment has already been made, these controls are not always operated at optimal rates. CMAQ simulations for the Eastern U.S. in 2018 show ozone concentrations decrease by ~5 ppb when controls on coal-fired power plants limit NOx emissions to historically best rates.