HISTORICAL DISPERSANT AND IN-SITU BURNING OPPORTUNITIES IN THE UNITED STATES

1997 ◽  
Vol 1997 (1) ◽  
pp. 805-810
Author(s):  
Janet H. Kucklick ◽  
Don Aurand

ABSTRACT Evaluating the value of using dispersants or in-situ burning in various regions of the United States requires an estimate of how often such technology might reasonably be considered. This study collected information on marine oil spills of 1000 barrels or more occurring in the coastal and offshore waters of the United States (excluding Alaska) from 1973 through June 1994. Each incident was examined using criteria for oil type, weather conditions, water depth, and distance from the shoreline. This allowed the frequency and geographic distribution of dispersible and burnable spills to be estimated. The effect of modifying the criteria on the frequency distribution of dispersible and burnable spills was evaluated. Data were obtained on 138 refined product and 69 crude oil spills. The majority of these spills occurred in shallow water, close to the shoreline, and/or close to a sensitive receptor. Depending on the severity of the criteria, between 10% and 51% of the crude oil spills and 4% and 18% of the refined oil spills studied were realistic candidates for dispersant use. Between 35% and 58% of the crude and 22% and 38% of the refined oil spills were realistic candidates for burning.

1995 ◽  
Vol 1995 (1) ◽  
pp. 965-966
Author(s):  
David E. Fritz ◽  
Alexis E. Steen

ABSTRACT The American Petroleum Institute (API) has the only program in the United States dedicated to freshwater oil spill research. In existence since 1990, the API Inland Spills Work Group consists of representatives from industry and government. Projects have included a manual prepared with NOAA that evaluates cleanup techniques in order to minimize environmental impacts of spills in freshwater habitats, a literature review and annotated bibliography of environmental and human health effects of freshwater oil spills, a study of chemical treating agents for use in freshwater applications, and an evaluation of in situ burning of oil spilled in marshes.


1981 ◽  
Vol 1981 (1) ◽  
pp. 677-683 ◽  
Author(s):  
Mary Ann Froehlich ◽  
John F. Bellantoni

ABSTRACT The incidence of oil spills of more than 10,000 gallons in the years 1974 through 1977 was compared for four regions in the United States that carry heavy oil traffic: Greater New York-New Jersey, Delaware Bay, the Louisiana coast, and the northern Texas coast. The purpose was to determine whether there was any significant difference in oil spill rates among the four regions. The spill data from the study were drawn from the Pollution Incident Reporting System (PIRS), the records of the National Response Center (NRC), and the Commercial Vessel Casualty File. Oil movement data were obtained from the U.S. Army Corps of Engineers, Waterborne Commerce of the United States. A comparison of PIRS and NRC data indicated that neither data source was complete. From the amount of agreement between the two sources and some statistical assumptions, it was estimated that the PIRS data covered about 75 percent of all spills and about 88 percent of all vessel-related spills. The spill rates calculated for the four regions showed no significant differences. However, a significantly higher spill rate was noted for the Hudson River subdivision of the New York-New Jersey region. An examination of the spill reports showed that most of the spills were associated with poor weather conditions, that is, ice or fog.


1991 ◽  
Vol 1991 (1) ◽  
pp. 389-393 ◽  
Author(s):  
John M. Cunningham ◽  
Karen A. Sahatjian ◽  
Chris Meyers ◽  
Gary Yoshioka ◽  
Julie M. Jordan

ABSTRACT Dispersants have been a controversial oil spill response technique since their introduction during the Torrey Canyon oil spill off the coast of the United Kingdom in 1967. Despite reductions in the toxicity of dispersants and improvements in their application since then, dispersants have not been used extensively in the United States because of logistical difficulties, unfavorable weather conditions, and a lack of demonstrated effectiveness during actual spill conditions. In addition, there is a widely held perception in the United States that dispersant use has been limited by complex authorization procedures. This paper reviews the dispersant policies of several European nations and Canada and compares them with those of the United States. Recent developments in U. S. dispersant policy are outlined, particularly those designed to expedite decision making. The paper concludes by examining some recent U. S. oil spills in which dispersant use was considered.


1999 ◽  
Vol 1999 (1) ◽  
pp. 1275-1278
Author(s):  
Gary Yoshioka ◽  
Eva Wong ◽  
Beverly Grossman ◽  
Wendy Drake ◽  
Robert W. Urban ◽  
...  

ABSTRACT This study evaluates the feasibility of conducting in situ burning (ISB) on past major oil spills (i.e., spills since 1967 over 10,000 barrels in North America and over 50,000 barrels in South America and Europe) using current technology. A diverse set of 141 spills representing various combinations of parameters affecting spill response (e.g., spill size, oil type, weather conditions, sea temperature, and geographic location) initially were evaluated using four “Phase I” criteria: distance to populated area, oil weathering, logistics, and weather conditions. In Phase I, a spill that failed to meet one of the four criteria was considered an “unsuccessful” candidate for ISB. Spills that met all four criteria were further evaluated using a “Phase II” analysis that applied additional criteria and considered individual spill circumstances to determine if the spill should be rated a “successful,” “marginal call,” or “unsuccessful” ISB candidate. In total, 47 of the 141 spills passed the Phase I analysis. Fourteen spills were ultimately determined successful in the Phase II analysis, and 12 were designated marginal calls. Proximity to populated areas was the most significant of the four Phase I criteria; 59 of the 141 spills did not pass Phase I because the incident occurred near a sizable city.


2016 ◽  
Vol 97 (6) ◽  
pp. 1033-1056 ◽  
Author(s):  
Taneil Uttal ◽  
Sandra Starkweather ◽  
James R. Drummond ◽  
Timo Vihma ◽  
Alexander P. Makshtas ◽  
...  

Abstract International Arctic Systems for Observing the Atmosphere (IASOA) activities and partnerships were initiated as a part of the 2007–09 International Polar Year (IPY) and are expected to continue for many decades as a legacy program. The IASOA focus is on coordinating intensive measurements of the Arctic atmosphere collected in the United States, Canada, Russia, Norway, Finland, and Greenland to create synthesis science that leads to an understanding of why and not just how the Arctic atmosphere is evolving. The IASOA premise is that there are limitations with Arctic modeling and satellite observations that can only be addressed with boots-on-the-ground, in situ observations and that the potential of combining individual station and network measurements into an integrated observing system is tremendous. The IASOA vision is that by further integrating with other network observing programs focusing on hydrology, glaciology, oceanography, terrestrial, and biological systems it will be possible to understand the mechanisms of the entire Arctic system, perhaps well enough for humans to mitigate undesirable variations and adapt to inevitable change.


1998 ◽  
Vol 9 (5) ◽  
pp. 549-568
Author(s):  
Noel D. Uri

The impact of energy on the adoption of conservation tillage is of special importance in addressing concerns about the effect of agricultural production on the environment in the United States. It is the subject of this paper. After establishing that a relationship exists between the price of energy and the adoption of conservation tillage via cointegration techniques, the relationship is quantified. It is shown that while the real price of crude oil, the proxy used for the price of energy, does not affect the rate of adoption of conservation tillage, it does impact the extent to which it is used. Finally, there is no structural instability in the relationship between the relative use of conservation tillage and the real price of crude oil over the period 1963 to 1997.


2021 ◽  
Vol 12 ◽  
Author(s):  
Scott C. Thomas ◽  
Devon Payne ◽  
Kevin O. Tamadonfar ◽  
Cale O. Seymour ◽  
Jian-Yu Jiao ◽  
...  

Thermoflexus hugenholtzii JAD2T, the only cultured representative of the Chloroflexota order Thermoflexales, is abundant in Great Boiling Spring (GBS), NV, United States, and close relatives inhabit geothermal systems globally. However, no defined medium exists for T. hugenholtzii JAD2T and no single carbon source is known to support its growth, leaving key knowledge gaps in its metabolism and nutritional needs. Here, we report comparative genomic analysis of the draft genome of T. hugenholtzii JAD2T and eight closely related metagenome-assembled genomes (MAGs) from geothermal sites in China, Japan, and the United States, representing “Candidatus Thermoflexus japonica,” “Candidatus Thermoflexus tengchongensis,” and “Candidatus Thermoflexus sinensis.” Genomics was integrated with targeted exometabolomics and 13C metabolic probing of T. hugenholtzii. The Thermoflexus genomes each code for complete central carbon metabolic pathways and an unusually high abundance and diversity of peptidases, particularly Metallo- and Serine peptidase families, along with ABC transporters for peptides and some amino acids. The T. hugenholtzii JAD2T exometabolome provided evidence of extracellular proteolytic activity based on the accumulation of free amino acids. However, several neutral and polar amino acids appear not to be utilized, based on their accumulation in the medium and the lack of annotated transporters. Adenine and adenosine were scavenged, and thymine and nicotinic acid were released, suggesting interdependency with other organisms in situ. Metabolic probing of T. hugenholtzii JAD2T using 13C-labeled compounds provided evidence of oxidation of glucose, pyruvate, cysteine, and citrate, and functioning glycolytic, tricarboxylic acid (TCA), and oxidative pentose-phosphate pathways (PPPs). However, differential use of position-specific 13C-labeled compounds showed that glycolysis and the TCA cycle were uncoupled. Thus, despite the high abundance of Thermoflexus in sediments of some geothermal systems, they appear to be highly focused on chemoorganotrophy, particularly protein degradation, and may interact extensively with other microorganisms in situ.


2021 ◽  
Author(s):  
Kyle M Lewald ◽  
Antoine Abrieux ◽  
Derek A Wilson ◽  
Yoosook Lee ◽  
William R Conner ◽  
...  

Drosophila suzukii, or spotted-wing drosophila, is now an established pest in many parts of the world, causing significant damage to numerous fruit crop industries. Native to East Asia, D. suzukii infestations started in the United States a decade ago, occupying a wide range of climates. To better understand invasion ecology of this pest, knowledge of past migration events, population structure, and genetic diversity is needed. To improve on previous studies examining genetic structure of D. suzukii, we sequenced whole genomes of 237 individual flies collected across the continental U.S., as well as several representative sites in Europe, Brazil, and Asia, to identify hundreds of thousands of genetic markers for analysis. We analyzed these markers to detect population structure, to reconstruct migration events, and to estimate genetic diversity and differentiation within and among the continents. We observed strong population structure between West and East Coast populations in the U.S., but no evidence of any population structure North to South, suggesting there is no broad-scale adaptations occurring in response to the large differences in regional weather conditions. We also find evidence of repeated migration events from Asia into North America have provided increased levels of genetic diversity, which does not appear to be the case for Brazil or Europe. This large genomic dataset will spur future research into genomic adaptations underlying D. suzukii pest activity and development of novel control methods for this agricultural pest.


Author(s):  
S. A. Zolina ◽  
I. A. Kopytin ◽  
O. B. Reznikova

In 2018 the United States surpassed Saudi Arabia and Russia to become the largest world oil producer. The article focuses on the mechanisms through which the American shale revolution increasingly impacts functioning of the world oil market. The authors show that this impact is translated to the world oil market mainly through the trade and price channels. Lifting the ban on crude oil exports in December 2015 allowed the United States to increase rapidly supply of crude oil to the world oil market, the country’s share in the world crude oil exports reached 4,4% in 2018 and continues to rise. The U.S. share in the world petroleum products exports, on which the American oil sector places the main stake, reached 18%. In parallel with increasing oil production the U.S. considerably shrank crude oil import that forced many oil exporters to reorient to other markets. Due to high elasticity of tight oil production to the oil price increases oil from the U.S. has started to constrain the world oil price from above. According to the majority of authoritative forecasts, oil production in the U.S. will continue to increase at least until 2025. Since 2017 the tendency to the increasing expansion of supermajors into American unconventional oil sector has become noticeable, what will contribute to further strengthening of the U.S. position in the world oil market and accelerate its restructuring.  


Sign in / Sign up

Export Citation Format

Share Document