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"Environmental forensics."
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Geoscientists at crime scenes : a companion to forensic geoscience
After the publication of the first Italian book on Forensic Geoscience: \"Geologia Forense\" (Di Maggio, Barone, et al. 2013, Flaccovio Ed.), the international demand to have an international version (in English language) about the new applications of this topic carried out in Italy and the possibility to apply them in international contexts encouraged us to create a new English book based on this. If forensic science is the application of technical and scientific methodologies applied to traditional categories of judicial investigations, in connection with the investigation of a crime or a social behavior, within them a special role is held by forensic geoscience, or the application of different disciplines of Earth Sciences in judicial contexts. Forensic geoscience encompasses some branches of the earth sciences such as geology, mineralogy, geochemistry, geophysics, remote sensing, soil science and archaeology, whose applications may provide a suitable or appropriate environmental interpretation of the surroundings, in the context of numerous types of offences, both criminal and civil. The environmental context can become part of the crime narrative in diverse situations: it can be the place where to hide a body or precious objects, or it may be a witness to a crime. Given the nature of many crime narratives carried out in outdoor areas, the environment, as it is not a closed system, plays a dual role, passive and active. Passive in the sense that it may be the principal repository of clues and evidence that both the victim and/or offender may have been present in a given location. Active since it can be the protagonist of the crime narrative, where, for example, it may have been abused in the design and construction phases of landfill or architectural structures, but also when it leaves proof marks on clothing and objects, such as the soil found on footwear. -- from back cover.
BOOK
Spatiotemporal Variability of Trace Elements Fingerprints in Otoliths of Japanese Eel (Anguilla japonica) and Its Use in Tracing Geographic Origin
To secure traceability along supply chains of foodstuffs, the spatiotemporal variability of trace elements’ fingerprints (TEF) in fish otoliths provides a powerful tool to determine and discriminate the origin. Spatiotemporal variability of TEF was examined in a commercially important seafood, Japanese eel (Anguilla japonica), by means of laser ablation-inductively coupled plasma mass spectrometry (LA-ICPMS). Six elemental ratios (Na:Ca, Mg:Ca, P:Ca, K:Ca, Sr:Ca, and Ba:Ca) were determined in the otoliths of specimens originating from four aquaculture farms to examine the spatial variability and from one wild habitat over three years to examine the temporal variation. Significant temporal variation was found in Mg:Ca and Sr:Ca ratios; however, discriminant function analysis showed a lower temporal variation (50%) for the three years. Spatial variations were significant in Sr:Ca and Ba:Ca ratios, and discriminant function analysis showed high (80%) spatial variation among the four farms. Otolith TEF in the Japanese eel showed specific spatial variation among aquaculture farms but intangible temporal variation, suggesting the otolith TEF reflect each aquaculture environment. The present study shows that otolith TEF can be a reliable tool to discriminate the geographic origin of the Japanese eel.
Journal Article
The current status of environmental forensic science in the member institutes of the European Network of Forensic Science Institutes (ENFSI)
The paper presents the results of a questionnaire survey carried out by The Forensic laboratory of the National Bureau of Investigation (NBI-FL), aiming to get an overview of the current status of environmental forensic science (EFS) and environmental crimes investigation in the European Network of Forensic Science Institutes (ENFSI). A questionnaire was sent out to 71 ENFSI member institutes and the response rate was 44%. The results of the survey indicate that the issue of environmental crime is taken seriously in most participating countries, but a need for improvement in the approach to the issue was identified. Countries define environmental crime differently and have different law structures regarding what kind of actions are considered environmental crimes. The most frequently mentioned actions were waste dumping, pollution, inappropriate handling of chemicals and hazardous waste, oil spills, illicit excavation and wildlife crime and trading.The different roles of the authorities involved in the investigative process seem to be somewhat unclear in several countries. Most institutes participated on some level in the forensic processes related to environmental crime cases. The most common tasks performed in forensic institutes were the analysis of environmental samples and interpretation of the results. Only three institutes had case coordination services related to EFS. Participation in sample collection was rare but a clear developmental need was identified. A majority of the respondents acknowledged a need for increased scientific collaboration and education in the field of EFS.
●The definitions of criminalized actions that affect the environment vary.●Environmental forensic science (EFS) is a small discipline.●The roles of the institutes vary but are often limited.●Only some institutes have designated EFS personnel.●Interest for improving expertise and collaboration in EFS was clearly observed.
Journal Article
Portable gas chromatography–mass spectrometry method for the in-field screening of organic pollutants in soil and water at pollution incidents
Environmental pollution incidents generate an emergency response from regulatory agencies to ensure that the impact on the environment is minimised. Knowing what pollutants are present provides important intelligence to assist in determining how to respond to the incident. However, responders are limited in their in-field capabilities to identify the pollutants present. This research has developed an in-field, qualitative analytical approach to detect and identify organic pollutants that are commonly detected by regulatory environmental laboratories. A rapid, in-field extraction method was used for water and soil matrices. A coiled microextraction (CME) device was utilised for the introduction of the extracted samples into a portable gas chromatography–mass spectrometry (GC–MS) for analysis. The total combined extraction and analysis time was approximately 6.5 min per sample. Results demonstrated that the in-field extraction and analysis methods can screen for fifty-nine target organic contaminants, including polyaromatic hydrocarbons, monoaromatic hydrocarbons, phenols, phthalates, organophosphorus pesticides, and organochlorine pesticides. The method was also capable of tentatively identifying unknown compounds using library searches, significantly expanding the scope of the methods for the provision of intelligence at pollution incidents of an unknown nature, although a laboratory-based method was able to provide more information due to the higher sensitivity achievable. The methods were evaluated using authentic casework samples and were found to be fit-for-purpose for providing rapid in-field intelligence at pollution incidents. The fact that the in-field methods target the same compounds as the laboratory-based methods provides the added benefit that the in-field results can assist in sample triaging upon submission to the laboratory for quantitation and confirmatory analysis.
Journal Article
Liability allocation in pollution involving multiple responsible parties
World over, the instances where polluters are made to pay for the damages they have caused to the environment are on the rise. If more than one party is found responsible for pollution, our analyses of statutes of different countries, covering more than 57% of the world population and more than 45% of its land area, showed that liability is to be allocated among the involved parties on an equitable basis, often decided by the courts. Analyses of a number of court cases showed that the factors considered for allocation in such cases may be classified into two, technical and non-technical. It was also found that the legal liability of pollution was different from the technical liability in many cases due to the influence of non-technical factors that were very specific to the case. These non-technical factors often do not fall under the investigation purview of an environmental forensic expert who carries out technical investigations to find the responsible parties. Based on the analysis, it is suggested that the liability allocation be a two-stage process; the first stage being technical liability allocation done by the forensic expert and the second stage the final (legal) allocation by the court. It is also suggested that clear guidelines be prepared for technical liability allocation. There was also a felt need to quantify remediability to make the remediation liability allocation easier.
Journal Article
Estimating illicit production of MDMA from its production waste, a Dutch case study
The Netherlands plays a key role in the global production of the synthetic illicit drug MDMA. However, the actual Dutch production of MDMA is difficult to quantify. The illicit production of MDMA results in large amounts of waste. This study uses amounts of waste found in the environment and production-related MDMA residues in wastewater to estimate the amount of MDMA that is produced. The MDMA produced, associated to the amount of waste found in the environment is 4.2 and 5.8 tons per year for two common synthesis routes. The MDMA produced, associated to production-related residues in wastewater is significantly larger, with 39.2 tons per year. The estimated MDMA production associated to waste in the environment and wastewater analysis is 43.4 and 45.0 tons per year for two common synthesis routes. Even though these estimates are difficult to validate, they are feasible when compared to prevalence-based consumption estimates or production estimates based on interceptions of precursors. The current study illustrates that waste of an illicit industry can shed light on its production volumes, thereby, complementing other efforts to estimate production, trade and use of synthetically produced illicit substances.
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•Dumped waste from illict MDMA manufacturing is used to quantify associated production volume.•Waste from MDMA production in wastewater is used to quantify associated production volume.•Waste related production estimates of MDMA compliment other market estimates.•Tracking production waste can improve the assessment of illicit production and markets of synthetic drugs.
Journal Article
‘Remediability Score’ as a tool for selecting the most suitable remediation technology for contaminated sites
Land gets contaminated due to different human activities like illegal industrial discharges, mining activities, and spillage of chemicals. The pollutants released through these activities can have prolonged effects on the environment and human health. Therefore, there is a need for immediate remediation of the contaminated site. Different remediation technologies are available for remediating a land contaminated with a particular contaminant. Selection of the most appropriate remediation technology among all those available would help in quick and efficient remediation of the land. There are multiple factors deciding the appropriateness of a technology for a given case. ‘Remediability’ is a term introduced in the scientific literature recently to describe the ease with which a contaminated land can be remediated and ‘Remediability Score (
RS
)’ quantifies remediability in a 0–100 scale. The higher the value of
RS
, the greater is the difficulty for remediation. The factors influencing remediability were presented before a group of experts in a Delphi process for assigning comparative importance. From the importance score obtained in a Saaty scale of 1 to 9, the weights of factors were calculated using Fuzzy AHP. The overall
RS
was calculated by taking the weighted impact of the factors after their magnitudes were normalized.
RS
for the various remediation technologies feasible for a contaminated site, Kuzhikandam, near Kochi, Kerala was calculated. The site was revealed to be contaminated with heavy metals and organic compounds in a field investigation. The most suitable technology for remediating the selected site was found to be vitrification with an
RS
of 22. The next best technology, stabilization/solidification, had an
RS
of 25. The study showed that
RS
can be a reliable matric for selecting the most suitable remediation technology for a contaminated site.
Journal Article
Remote sensing in environmental police investigations: aerial platforms and an innovative application of thermography to detect several illegal activities
Being able to identify the environmental crimes and the guilty parties is central to police investigations, and new technologies enable the authorities to do this faster and more accurately than ever before. In recent years, our research team has introduced the use of a range of aerial platforms and an innovative application of thermography to detect several illegal activities; for example, illegal sanitary sewer and storm-drain connections, illicit wastewater discharges, and other “anomalies” on surface waters can be easily identified using their thermal infrared signatures. It can also be used to detect illegal solid/liquid waste dumps or illicit air discharges. This paper introduces first results of a Thermal Pattern and Thermal Tracking approach that can be used to identify different phenomena and several pollutants. The aims of this paper were to introduce a fingerprint paradigm for environmental police investigations, defining several specific signatures (patterns) that permit the identification of an illicit/anomalous activity, and establish a procedure to use this information to find the correlation (tracking) between the crime and the culprit or the source and the target.
Journal Article
Oil spill environmental forensics
Oil Spill Environmental Forensics provides a complete view of the various forensic techniques used to identify the source of an oil spill into the environment. The forensic procedures described within represent various methods from scientists throughout the world. The authors explore which analytical and interpretative techniques are best suited for a particular oil spill project. This handy reference also explores the use of these techniques in actual environmental oil spills. Famous incidents discussed include the Exxon Valdez incident in 1989 and the Guanabara Bay, Brazil 2000. The authors chronicle both the successes and failures of the techniques used for each of these events. Dr. Zhendi Wang is a senior research scientist and Head of Oil Spill Research of Environment Canada, working in the oil and toxic chemical spill research field. He has authored over 270 academic publications and won a number of national and international scientific honors and awards. Dr. Wang is a member of American Chemical Society (ACS), the Canadian Society for Chemistry (CSC), and the International Society of Environmental Forensics (ISEF). *International experts show readers the forensic techniques used in oil spill investigations*Provides the theoretical basis and practical applications for investigative techniques*Contains numerous case studies demonstrating proven techniques
eBook
Integrated hierarchical geo-environmental survey strategy applied to the detection and investigation of an illegal landfill: A case study in the Campania Region (Southern Italy)
•Geoelectric and geomagnetic methods were performed to analyze a contaminated area.•The combined use of satellite data reveals the effectiveness of this strategy.•A pure surface geology approach supported the investigation of the illegal landfill.•A multi-temporal analysis of the landfill morphological evolution is proposed.
This paper describes an approach to detect and investigate the main characteristics of a solid waste landfill through the integration of geological, geographical and geophysical methods. In particular, a multi-temporal analysis of the landfill morphological evolution was carried out using aerial and satellite photos, since there were no geological and geophysical data referring to the study area. Subsequently, a surface geophysical prospection was performed through geoelectric and geomagnetic methods. In particular, the combination of electrical resistivity, induced polarization and magnetic measurements removed some of the uncertainties, generally associated with a separate utilization of these techniques. This approach was successfully tested to support the Prosecutor Office of Salerno (S Italy) during a specific investigation about an illegal landfill. All the collected field data supported the reconstruction of the site-specific history, while the real quarry geometry and site geology were defined. Key elements of novelty of this method are the combination and the integration of different methodological approaches, as the parallel and combined use of satellite, aerial and in-situ collected data, that were validated in a real investigation and that revealed the effectiveness of this strategy.
Journal Article