Valdez Oil Spill Research Articles

Beyond Postmodern Irony: Empathetic Storytelling in Hilary Mantel’s Beyond Black

The contemporary age, which has impacted the world and its inhabitants with a sense of anxiety and uncertainty, stemming from economic, political, global, and environmental events, has woven its effects into diverse scopes of life. In the late 20th century, the challenges facing the modern world intensified and peaked in the subsequent century due to events such as the 9/11 attacks, the 2008 global financial crisis, conflicts leading to refugee crises in regions like the Middle East, and environmental disasters like Chernobyl (1986) and Fukushima Daiichi (2011). Additionally, incidents such as the Exxon Valdez oil spill (1989), the Deepwater Horizon oil spill (2010), and the issue of global warming have further contributed to this heightened sense of risk and uncertainty, impacting both nations and individuals alike. Beside these various scopes of life, literature has also been impacted by the transformation of the world. The impact on literature has been particularly pronounced with embracing a sincere one on behalf of the author by abandoning the excessive irony and carefree attitude of postmodernism, signalling a transformation beyond the conventional realms of postmodernism. As Nicholas Stavris states in Supplanting the Postmodern (2015), “faced with a contemporary culture of anxiety, artists attempt to overcome the uncertainties of the human condition in the twenty-first century by reaching out for a renewed period of sincerity. Authenticity is the new focus for the present day artist” (p. 407). Similarly, in The Post-war Novel and the Death of the Author (2020) Arya Aryan remarks this positive change in literature by noting that a “new concept of authorship emerges in this more globalised and fragile new risk therapy culture for it produces pressures on novelists not only to embrace the New Sincerity but to return to the old eighteenth-century ideals of the novelist as a purveyor of moral sentiment within the new version of liberal economics” (p. 179). Hence, the change in the attitude of authors has led to the emergence of many new theories, which critique the excessive irony, detachment, and scepticism that characterize postmodern culture. Contemporary literature advocates for a return to sincerity, authenticity, and earnestness in literature by prioritising genuine emotion, connection and empathy. By examining the implications of this shift, this article explores Hilary Mantel’s Beyond Black (2005) within the context of metamodernism, aiming to reveal the discernible shift away from the detached irony of postmodernism towards a literary landscape that values sincerity and empathy. Through a detailed exploration of Mantel’s narrative choices, this analysis aims to uncover how the author places empathy at the forefront of storytelling. This article contends that Mantel’s work exemplifies a crucial transition in contemporary literature, highlighting the integral role of empathy in weaving one's life into the narrative fabric to overcome the challenges of the contemporary age, thereby portraying contemporary authors as more responsible and engaged in shaping the literary experience, bridging the gap between sincerity and irony.

A Quantitative Comparison of Oil Sources on Shorelines of Prince William Sound, Alaska, 17 Years After the Exxon Valdez Oil Spill.

Environmental damage caused by accidental discharges of pollutants depends in part on the degree of prior contamination, in that increased pollution of an already heavily contaminated region will usually be considered less detrimental than equivalent pollution of a pristine region. Quantitative comparisons of specific pollution events with the extent and severity of prior contamination are rare, owing to difficulties in identifying and assessing contaminants remaining from prior pollution events, and in some cases contaminants from natural sources. The 1989 Exxon Valdez oil spill (EVOS) presents an unusual opportunity to quantitatively evaluate residual contaminants from petroleum sources on shorelines of Prince William Sound (PWS), Alaska. Here, we evaluate surface oil contamination from Monterey Formation petroleum-derived residues (released into PWS from ruptured storage tanks during the 1964 earthquake) on 200 shoreline segments selected at random within the EVOS spill path. We compare these results with previously estimated contamination from the EVOS and from other human activities. Our results indicate that residual shoreline contamination from the EVOS is more than ~ 50% greater than the sum total from human activity sites, that residual contamination by Monterey Formation sources is negligible in comparison to that from the EVOS, and that most of the shorelines in PWS were as close to pristine prior to the EVOS as is likely to be found anywhere else worldwide.

Potential impact of offshore human activities on gray whales (Eschrichtius robustus)

Gray whale (Eschrichtius robustus) reactions to offshore human activities have been relatively well studied compared to those of other mysticetes. Studies of short-term behavioural responses to underwater noise associated with aircraft, ships and seismic explorations indicate a 0.5 probability that whales will respond to continuous broadband noise when sound levels exceed ca 120dB2 and to intermittent noise when levels exceed ca 170dB, usually by changing their swimming course to avoid the source. Gray whales were ‘startled’ at the sudden onset of noise during playback studies, but demonstrated a flexibility in swimming and calling behaviour that may allow them to circumvent increased noise levels. Whales may be ‘harassed’ by noise from large commercial vessels, especially in shipping lanes or near busy ports. Gray whales sometimes change course and alter their swimming speed and respiratory patterns when followed by whalewatching boats. Conversely, some whales swim toward small skiffs deployed from whalewatching boats in breeding lagoons, seemingly attracted by the noise of idling outboard engines. Reported gray whale reactions to aircraft are varied and seem related to ongoing whale behaviour and aircraft altitude. Whale response to research involving tagging and biopsy sampling appears to be short term. Gray whales were seen swimming through surface oil from the Exxon Valdez oil spill along the Alaskan coast and showed only partial avoidance to natural oil seeps off the California coast. Laboratory tests suggest that gray whale baleen, and possibly skin, may be resistant to damage by oil, but spilled oil or oil dispersant in a primary feeding area could negatively affect gray whales by contaminating benthic prey. Gray whales are sometimes injured or killed in collisions with vessels or entanglement in fishing gear. Concern about the cumulative long-term impact of offshore human activities is particularly acute in the Southern California Bight, where many activities are often concurrent.

Review of Marine Pollution in Oil Spill Cases in terms of International Environmental Law

This paper will focus on one of the cases related to pollution caused by the disposal of oil spills into the sea, a case study of the Exxon Valdez oil spill. In that matter, this paper can ''provide the stage'' for several relevant cases related to MARPOL 73/78 to build a discourse on environmental protection at sea based on the perspective of international environmental law. The writing of this paper uses a normative juridical legal research method. Judging from this Exxon Valdez case study, it can be agreed that this international treaty related to the prevention of pollution from ships or MARPOL has a renewal of its effectiveness if there has been an incident of pollution at sea in the past. The incident that impacted MARPOL 73/78 itself has also taught us the importance of protecting marine ecosystems.

Possible environmental solutions to oil spills in the Black Sea due to the Russian invasion (on the examples of the U.S. and international experience dealing with oil spills)

The Black Sea is an inland sea, that is basically isolated from the World Ocean. Even though it is connected only with the Mediterranean Sea through the Turkish Straits, the Black Sea is very environmentally vulnerable. Armed conflict invariably has a negative impact on nature. Oil spills that happened because of Russian invasion have radically changed the ecosystems of the Black Sea, and subsequently seriously threatened its biodiversity, and ecosystem as a whole. During the last 20-30 years, even before the full-scale Russian invasion, specialists of the Ukrainian Scientific Center for Marine Ecology, together with the EMBLAS project, were deeply worried about changes in the Black Sea [1].
 Even more rapid change in the Black Sea ecosystem happened in June 2022 when Russian forces used two anti-ship missiles to target an abandoned cargo tanker adrift in the northern Black Sea. The vessel was loaded with around 600 tons of diesel fuel. The abandoned tankers, with thousands of barrels of diesel fuel, constituted an “environmental time bomb [2].” 
 As to the existing framework, in 1992, six coastal countries (Bulgaria, Georgia, Romania, the Russian Federation, Turkey and Ukraine) signed and ratified the Convention on the Protection of the Black Sea from Pollution. Since then, the Black Sea Pollution Protection Commission has been responsible for the sustainable management of the Black Sea. The real effectiveness of this Commission turned out to be very low considering the fact that not a single act was adopted for the preservation of the Black Sea in terms of Russian invasion since February 24th 2022.
 Indeed, there is some legal protection for nature under the laws of armed conflict too, although these laws are ambiguous and have strict limitations. For instance, there is a set of Draft Principles for environmental preservation in relation to armed conflict, which was just adopted by the UN International Law Commission. 
 Thus, in the absence of adequate international mechanisms to address oil spills immediately, it is worth to take into account well established US Response System as the federal government mechanism to respond to discharges of oil into navigable waters of the US. While this system functions through a cooperative network of federal, state, and local agencies, Ukraine lacks this coordinated cooperation, and cannot respond properly to the significant contamination of the Black Sea.
 Thus, we will reveal the existing international mechanisms to combat oil spills. Then, we will mainly focus on US Governing policies that deal with oil spills on the Exxon Valdez oil spill example, applying it to the existing policies in Ukraine.

Environmental Forensic Investigation in the Residential Neighborhood Volta Grande IV, Volta Redonda, RJ, Brazil, Using TPH and PAHs Analyses in Soil Samples

This article presents the results of a forensic investigation concerning the origin of hydrocarbons detected in the subsurface soil of the residential neighborhood Volta Grande IV, Volta Redonda, RJ, Brazil Before the establishment of the residential neighborhood (between 1978 and 1993), a blend of steel slag with by-products of carbon-chemical origin neutralized with calcium carbonate was buried in a portion of the area. Part of this material remained in the site and was covered by clayey soil. The area was leveled, and the houses were then built. Previous studies detected the presence of hydrocarbons in the soil, especially Polycyclic Aromatic Hydrocarbons (PAHs) above the Brazilian regulatory standards of CONAMA 420/2009 (CONAMA, 2009). Concern was raised that these hydrocarbons might be derived from local steel mill wastes. CSN conducted a geoforensic investigation to delineate the location of the waste from the steelworks company, in which integrated forensic hydrocarbons fingerprinting and data interpretation techniques were used to characterize the chemical compositions. There is an increasing trend of employing environmental chemistry techniques to determine the source(s) and fate of the contaminants and, in some cases, to determine their age or each source’s share. Environmental forensic techniques and databases were originally developed in the oil industry and were initially applied to environmental work with the Exxon Valdez incident (Emsbo-Mattingly, and Litman, 2016; Morrison, 2000; Morrison et al, 2006; Wang and Fingas, 2003; Douglas, 2007). Since then, the techniques have been refined for identification of both petrogenic and pyrogenic materials. Chemical fingerprinting and diagnostic source ratios helped compare the hydrocarbon patterns of residential soils with regional background, soils with suspected steel mill residues (dark soil), and selected reference samples. The application of geoforensic techniques is recent and rare in Brazil. For this reason, this work also aims to contribute with the development and application of the geoforensic tools in Brazil. Soil samples were analyzed for TPH, TPH fingerprint (modified EPA 8015D method), PAHs and biomarkers (modified EPA 8270D method). The forensic investigation determined that the VOCs in the residential soil are associated with gasoline and possibly diesel fuel oil releases into the subsurface soils that are not associated with the steel mill waste. The PAHs in residential subsurface soil generally fell below background concentrations and are likely associated with regional soot. The PAHs in the three samples with concentrations above background (out of a total of thirty-six samples) exhibit compositional features similar to coal byproducts, such as tar and coke, possibly attributable to the steel mill operation. Soil from the eastern portion of the neighborhood contained chemical signatures similar to coal tar; signatures from other samples were comparable to degraded asphalt and urban soot. Residues were limited to approximately 10% of the area, between 1 and 3m of depth.

A “Ticking Bomb” Named FSO Safer: Environmental Impact and State Responsibility under the View of International Law of the Sea

Oil spill is known as one of many common environmental disasters. Many oil spill disasters have cost countries and companies around the world huge amount of losses, and most importantly severe environmental damage which is not recoverable. Currently, one of Yemeni ships named FSO Safer is trapped and stranded around 5 miles from the outer coast of Yemen. The ship is carrying around 1 million barrels of crude oil in its storage, unfortunately the ship is currently in a poor condition and unstable, which may cause the largest super tanker oil spill disaster in the history, even worse than the Exxon Valdez disaster. Countries around the world including UN Members are looking for an immediate alternative to mitigate the disaster, as the Yemeni Government is currently in an armed conflict with the Houthi and have a very limited resource. This paper will analyze, which country will be affected by this imminent peril, who shall be responsible for the disaster and whether an exceptional circumstance that surrounds Yemen Government may discharge them for their responsibility as a state. This paper found that, this imminent disaster, will affect most of the countries located in the area of Red Sea, and the responsibility to deal with this imminent disaster are attached to all the affected countries under the UNCLOS 1982, including Yemen without any exception. An international movement initiated by the UN and Yemen Government itself must act immediately to prevent the disaster.

Development and testing of a SOSM approach to examine the natural attenuation of oil spillage on shorelines

Understanding the fate and behavior of spilled oil on the shoreline is crucial for helping decision-makers make trade-offs between natural attenuation and shoreline treatments. In this study, primary processes of oil attenuation and translocation on the shoreline, including penetration, washout, and biodegradation, have been considered to develop a numerical model, Shoreline Oil Spill Model (SOSM), for predicting the fate of spilled oil in various shoreline geological compartments. A holistic system design is employed to develop a user-friendly graphical interface system for SOSM. Global and local sensitivity analyses are used to examine the importance of the input factors on different outputs in SOSM. The results of the sensitivity analysis indicate that the input of oil spill mass correlates positively with the oil retention and surface and subsurface oil mass, while the oil concentration and penetration depth are sensitive to the grain size of the beach sediment. Subsequently, the SOSM is tested to hindcast the fate of stranded oil from the Exxon Valdez oil spill. Reasonable validation results have been obtained for the study site. It confirms the utility of the SOSM to examine and predict the level of shoreline oil contamination in the field following accidental spill events.

Measuring Organization of Large Surficial Clasts in Heterogeneous Gravel Beach Sediments

The natural stratification and interlocking “organization” of armored sediments in heterogeneous, coarse-grained, beaches provides protection and enhances habitat for borrowing sedentary megafauna and macrofauna such as hard-shelled clams. Here, we develop a novel metric for quantifying sediment organization of large surficial beach clasts through sedimentologic and photogrammetric analyses of 37 lower intertidal heterogeneous gravel beaches in western Prince William Sound, Alaska (USA). Grain size, photogrammetric, and Wolman Pebble Count clast-size data from 64, ~1-m2 study plots are combined into a clast-size-independent “Organization Metric” to quantify the degree of organization in the meshed arrangement of larger surficial sediments. This metric was validated through field manipulation experiments and comparisons of adjacent plots characterized by different clast sizes. Application of this metric to subsets of Prince William Sound beaches that underwent differential treatment following the Exxon Valdez oil spill reveals persistent physical effects of artificial beach disturbance even 21 years after the cleanup. This has important implications for beach management (e.g., cleaning or dredging) and for the diverse and productive sedentary megafaunal assemblages that live within these sediments. Overall, this study provides a new approach for quantifying organization of heterogenous coarse sediments in diverse natural settings; in particular, heterogenous gravel beaches.

Legal Response to Oil Pollution in the Maritime Environment: A Comparative Analysis of Nigeria, United Kingdom and the United States

This article undertakes a comparative analysis of the legal response to oil pollution in the maritime environment in Nigeria, the United Kingdom and the United States. Major oil spills in these three states are examined with the aim of highlighting how each state responded to the pollution. In Nigeria, oil spills that are examined include: Texaco’sFuniwa-5 oil well spill of 1980 and the Mobil Qua-Iboe oil spillage of 1998. As regards the United Kingdom, the Torrey Canyon incident and other spills are examined. For the United States, the Ixtoc 1 spill of 1979, the Exxon Valdez spill of 1989 and the Deepwater Horizon spill of 2010 are examined. These spills were often due to accidents and negligence during oil drilling and transportation. The United Kingdom and the United States had more robust legislation and policies that spelt out in advance how companies were to respond to oil spills. They also had effective mechanisms for the implementation and enforcement of the response to oil spills. This was the case even in situations, such as the Torrey Canyon incident, in which the oil spills was from a vessel transporting crude oil in the international waters. In Nigeria, legislation on oil spills were often outdated andin conflict with each other. They were also poorly implemented due to inter alia inadequate funds, lack of political will on the part of the government and the fact that the Nigerian government is in Joint Venture agreements with the Multinational oil companies.

EVOS and the Prince William Sound Long Term Environmental Monitoring Program

ABSTRACT Following the 1989 Exxon Valdez oil spill (EVOS), the Prince William Sound Regional Citizens' Advisory Council began the Long-Term Environmental Monitoring Program (LTEMP) in 1993 to track oil hydrocarbon chemistry of recovering sediments and mussel tissues along the path of the spill in Prince William Sound (PWS) and across the Northern Gulf of Alaska (NGOA) region. The program also samples sites near the Alyeska Marine Terminal (AMT) within Port Valdez, primarily to monitor tanker operations and the resulting treatment and discharge of oil-contaminated tanker ballast water. Over the last 28 years, the program has documented EVOS oil's disappearance at the spill-impacted sites (albeit buried oil still exists at a few unique sheltered locations in PWS). Within the Port, a few tanker- and diesel-spill incidents have been documented over the years, but all were minor and with recovery times of < 1 yr. Of highest concern has been the permitted chronic release of weathered oil from tankers' ballast-water that is treated and discharged at the Alyeska Marine Terminal (AMT). In earlier years (1980s–90s), with discharge volumes reaching 17–18 MGD, up to a barrel of finely dispersed weathered oil would be released into the fjord daily. Over the last two decades, total petrogenic inputs (TPAH43) into the Port have declined as measured in the monitored mussels and sediments. This trend reflects a combination of decreased Alaska North Slope (ANS) oil production and thus, less tanker traffic, plus less ballast from the transition to double-hulled tankers with segregated ballast tanks, and improved treatment-facility efficiency in removing PAH. From the 2018 collections, mussel-tissue hydrocarbon concentrations from all eleven LTEMP stations (within Port Valdez as well as PWS and NGOA regions) were below method detection limits and similar to laboratory blanks (TPAH43 < 44 ng/g dry wt.). At these low background levels, elevated TPAH values from a minor 2020 spill incident at the Terminal were easily detected at all three Port Valdez stations.

The Valdez Oil Spill, Environmental Impact and Corporate Liability

Despite the 21st century being more educated, richer, healthier, peaceful and better connected than the previous centuries, a negligent happening of the past - Exxon Valdez oil-spill of 1989 still looms, hovers and monitors our actions today. Though it is not the largest oil spill recorded, the impact on the Alaskan shoreline makes it one of the lowest points in history for it was an accident that grew out of sheer dereliction. The loss of biodiversity and commercial activities in the region hit by the spill had a butterfly effect on the economy of the country. Ever since the occurrence of this accident, a lot more care has been given to the degree of risk concerned with the transportation of oil through laws and regulations to abide by at the sea. Sound statutes are one of the many reasons why Prince William Sound has not witnessed a major oil leakings since the Valdez accident. In light of the climate crisis and the UN Sustainable Goals of 2030, this article aims to explore the Exxon Valdez accident, corporate liabilities and the importance of stringent laws to understand environmental damages and compensations.

Ecosystem response persists after a prolonged marine heatwave

Some of the longest and most comprehensive marine ecosystem monitoring programs were established in the Gulf of Alaska following the environmental disaster of the Exxon Valdez oil spill over 30 years ago. These monitoring programs have been successful in assessing recovery from oil spill impacts, and their continuation decades later has now provided an unparalleled assessment of ecosystem responses to another newly emerging global threat, marine heatwaves. The 2014–2016 northeast Pacific marine heatwave (PMH) in the Gulf of Alaska was the longest lasting heatwave globally over the past decade, with some cooling, but also continued warm conditions through 2019. Our analysis of 187 time series from primary production to commercial fisheries and nearshore intertidal to offshore oceanic domains demonstrate abrupt changes across trophic levels, with many responses persisting up to at least 5 years after the onset of the heatwave. Furthermore, our suite of metrics showed novel community-level groupings relative to at least a decade prior to the heatwave. Given anticipated increases in marine heatwaves under current climate projections, it remains uncertain when or if the Gulf of Alaska ecosystem will return to a pre-PMH state.

Ship Handling in Unprotected Waters: A Review of New Technologies in Escort Tugs to Improve Safety

It is a well-known fact that the 1989 Exxon Valdez disaster caused the escort towing of laden tankers in many coastal areas of the world to become compulsory. In order to implement a new type of escort towing, specially designed to be employed in very adverse weather conditions, considerable changes in the hull form of escort tugs had to be made to improve their stability and performance. Since traditional winch and ropes technologies were only effective in calm waters, tugs had to be fitted with new devices. These improvements allowed the remodeled tugs to counterbalance the strong forces generated by the maneuvers in open waters. The aim of this paper is to perform a comprehensive literature review of the new high-performance automatic dynamic winches. Furthermore, a thorough analysis of the best available technologies regarding towline, essential to properly exploit the new winches, will be carried out. Through this review, the way in which the escort towing industry has faced this technological challenge is shown.

Identification of persistent oil residues in Prince William Sound, Alaska using rapid spectroscopic techniques

Spectroscopic techniques including X-ray fluorescence (XRF) and attenuated total reflectance – Fourier transform infrared spectroscopy (ATR-FTIR) are used to examine oil residues persisting on shorelines in Prince William Sound that originate from the 1989 Exxon Valdez oil spill and oil released as a consequence of the 1964 Great Alaska earthquake. When coupled to classification models, ATR-FTIR and XRF spectral data can be used to distinguish between the two sources of oil with 92% and 86% success rates for the two techniques respectively. Models indicate that the ATR-FTIR data used to determine oil source includes the CO stretch, the twisting-scissoring of the CH2 group, and the CC stretch. For XRF data, decision tree models primarily utilize the abundance of nickel and zinc present in the oil as a means to classify source. This approach highlights the utility of rapid, field-based spectroscopic techniques to distinguish different inputs of oil to coastal environments.

Shoreline Surveys during the 1989 Exxon Valdez Oil Spill Response

Shoreline Surveys during the 1989 Exxon Valdez Oil Spill Response

Considering Cumulative Social Effects of Technological Hazards and Disasters

This article describes research designs utilized to study cumulative sociocultural and psychosocial effects of technological hazards and disasters. We apply these designs to two cases: (a) the Exxon Valdez disaster with a focus on Cordova, Alaska, and (b) the Enbridge Northern Gateway Pipeline project with a focus on the Gitga’at First Nation in Hartley Bay, British Columbia, Canada. The Exxon Valdez oil spill began in 1989 with the grounding of the supertanker on Bligh Reef in Prince William Sound, Alaska. Fisheries collapsed, key species failed to recover, and litigation languished for 19 years, creating an accumulation of impacts from the initial event. The Gitga’at First Nation serves as a case for examining cumulative effects of energy development, specifically the Enbridge Northern Gateway Pipeline project proposed in 2010. Hartley Bay’s sociocultural and psychosocial well-being are under threat from these and other ongoing development activities; they have also endured centuries of government-led subjugation. In studying each of these communities, we used mixed methods approaches that combined document review, observations, interviews, and surveys. Based on our experiences, we contend that the most effective way to examine cumulative social impacts is to employ concepts and theories drawn from existing research to support guidelines, frameworks, and methods.

Embedding effect and the consequences of advanced disclosure: evidence from the valuation of cultural goods

This study revisits the embedding effect, a long-standing problem in the nonmarket valuation literature. The embedding effect was a popular research topic during the 1990s, especially following the Exxon Valdez oil spill in Alaska. It has resurfaced after a special issue of The Journal of Economic Perspectives in 2012 in which Jerry Hausmann asserts that among the three long-standing problems with contingent valuation, the embedding effect is the most challenging. In this study, we focus on how information disclosure regarding the nested structure of goods affects both the willingness to pay and the presence of the embedding effect. Our results suggest that the level of embedding can be reduced with a more complete description of the nested structure of the goods under valuation. Therefore, it is highly important for each valuation study to test whether sufficient information is provided on the goods’ nested structure to ensure that the relationships among the goods’ subsets are correctly understood by respondents. We show that by providing respondents with more high-quality information, it is possible to mitigate the embedding effect.

Long-Term Ecological Impacts from Oil Spills: Comparison of Exxon Valdez, Hebei Spirit, and Deepwater Horizon.

The long-term ecological impacts of the Exxon Valdez oil spill (EVOS) are compared to two extensively studied and more recent large spills: Deepwater Horizon (DWH) and the Hebei Spirit oil spill (HSOS). Each of the three spills differed in magnitude and duration of oil released, environmental conditions, ecological communities, response and clean up measures, and ecological recovery. The EVOS began on March 24, 1989, and released 40.8 million liters of Alaska North Slope crude oil into the cold, nearly pristine environment of Prince William Sound, Alaska. EVOS oiled wildlife and rocky intertidal shorelines and exposed early life stages of fish to embryotoxic levels of polycyclic aromatic hydrocarbons (PAH). Long-term impacts following EVOS were observed on seabirds, sea otters, killer whales, and subtidal communities. The DWH spill began on April 20, 2010, and released 507 million liters of light Louisiana crude oil from 1600 m on the ocean floor into the Gulf of Mexico over an 87-day period. The DWH spill exposed a diversity of complex aquatic communities in the deep ocean, offshore pelagic areas, and coastal environments to petroleum hydrocarbons. Large-scale persistent ecological effects included impacts to deep ocean corals, failed recruitment of oysters over multiple years, damage to coastal wetlands, and reduced dolphin, sea turtle, and seabird populations. The HSOS began on December 7, 2007, and released approximately 13 million liters of Middle East crude oils into ecologically sensitive areas of the Taean area of western Korea. Environmental conditions and the extensive initial cleanup of HSOS oil stranded on shorelines limited the long-term impacts to changes in composition and abundance of intertidal benthic communities. Comparisons of EVOS, DWH, and HSOS show the importance and complexity of the interactions among the environment, oil spill dynamics, affected ecological systems, and response actions.

Rapid recovery of coastal environment and ecosystem to the Hebei Spirit oil spill’s impact

The 2007 Hebei Spirit oil spill (HSOS), the largest in the national history, has negatively impacted the entire environment and ecosystem along the west coast of South Korea. Although many studies have reported the damages and impacts from the HSOS, quantitative assessment evaluating the recovery time and status have not been documented. Here, we first address the recovery timeline of the HSOS, by comprehensive analyses of 10-years accumulated data in quantitative manner. Concentrations of residual oils in seawater, sediments, and oysters rapidly dropped to backgrounds in 16, 75, and 33 months, respectively. Also, damaged benthic communities of intertidal and subtidal areas were fully recovered only after ~6 years. The present results collectively indicated unexpectedly fast recovery of the damaged environment and ecosystem from such a huge oil spill. The high tidal mixing (~9 m tidal height) and intensive human cleanup (~1.2 million volunteers) at the initial cleanup period might have contributed to rapid recovery; cf. 4–5 times faster than the Exxon Valdez oil spill. However, potential risk to human health remains unclear. Thus, it is warranted to conduct more in depth epidemiological studies to address chronic health effects associated with the cleanup volunteers as well as the local residents who have been living nearby the oil spill impacted sites.