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Organohalogen contaminants in wildlife from the Yangtze River Delta : Development of methods and assessments of legacy and emerging persistent organic pollutantsYin, Ge January 2016 (has links)
Rapid economic development has occurred during the past few decades in China with the Yangtze River Delta (YRD) area as one of the most progressive areas. The urbanization, industrialization, agricultural and aquaculture activities result in extensive production and application of chemicals. Organohalogen contaminants (OHCs) have been widely used as i.e. pesticides, flame retardants and plasticizers. They are persistent, bioaccumulative and pose a potential threat to ecosystem and human health. However, limited research has been conducted in the YRD with respect to chemicals environmental exposure. The main objective of this thesis is to investigate the contamination level, distribution pattern and sources of OHCs in the YRD. Wildlife from different habitats are used to indicate the environmental pollution situation, and evaluate selected matrices for use in long term biomonitoring to determine the environmental stress the contamination may cause. In addition, a method is developed for dicofol analysis. Moreover, a specific effort is made to introduce statistic power analysis to assist in optimal sampling design. The thesis results show extensive contamination of OHCs in wildlife in the YRD. The occurrences of high concentrations of chlorinated paraffins (CPs) are reported in wildlife, in particular in terrestrial species, (i.e. short-tailed mamushi snake and peregrine falcon). Impurities and byproducts of pentachlorophenol products, i.e. polychlorinated diphenyl ethers (PCDEs) and hydroxylated polychlorinated diphenyl ethers (OH-PCDEs) are identified and reported for the first time in eggs from black-crowned night heron and whiskered tern. High concentrations of octachlorodibenzo-p-dioxin (OCDD) are determined in these samples. The toxic equivalents (TEQs) of polychlorinated dibenzo-p-dioxin (PCDDs) and polychlorinated dibenzofurans (PCDFs) are at mean levels of 300 and 520 pg TEQ g-1lw (WHO2005 TEQ) in eggs from the two bird species, respectively. This is two orders of magnitude higher than European Union (EU) regulation limit in chicken eggs. Also, a novel pattern of polychlorinated biphenyls (PCBs) with octa- to decaCBs, contributing to as much as 20% of total PCBs therein, are reported in birds. The legacy POPs shows a common characteristic with relatively high level of organochlorine pesticides (i.e. DDT, hexacyclohexanes (HCHs) and Mirex), indicating historic applications. In contrast, rather low concentrations are shown of industrial chemicals such as PCBs and polybrominated diphenyl ethers (PBDEs). A refined and improved analytical method is developed to separate dicofol from its major decomposition compound, 4,4’-dichlorobenzophenone. Hence dicofol is possible to assess as such. Statistic power analysis demonstrates that sampling of sedentary species should be consistently spread over a larger area to monitor temporal trends of contaminants in a robust manner. The results presented in this thesis show high CPs and OCDD concentrations in wildlife. The levels and patterns of OHCs in YRD differ from other well studied areas of the world. This is likely due to the extensive production and use of chemicals in the YRD. The results strongly signal the need of research biomonitoring programs that meet the current situation of the YRD. Such programs will contribute to the management of chemicals and environment in YRD, with the potential to grow into the human health sector, and to expand to China as a whole. / <p>At the time of the doctoral defense, the following papers were unpublished and had a status as follows: Paper 2: Manuscript. Paper 5: Submitted. Paper 6: Manuscript.</p><p> </p>
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Trace Metal Analysis of Barren River and Nolin River Reservoirs by Atomic Absorption SpectroscopyKennedy, Mary Jo 01 July 1969 (has links)
This research was part of a project underway at Barren River and Nolin River Reservoirs in south-central Kentucky. The research was partially supported by a grant through the Sport Fishing Institute, Washington, D.C.
The study reported herein was concerned with the analysis of trace metal concentrations in the two reservoirs. It is believed that the fish population may in part depend upon the trace metals present in the water. It is anticipated that the data presented in this paper will eventually be correlated with the biology studies of the reservoirs being carried out by the Department of Biology of Western Kentucky University.
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"Mining" for a Reference Condition in Southern West Virginia StreamsRouch, Matthew 01 January 2014 (has links)
Quarterly samples were used to estimate assemblage-level (all species combined) fish production within three minimally-impacted, southern West Virginia streams. The total annual fish production estimate was highest in Slaunch Fork (37.52 kg∙ha-1∙y-1), a tributary of the Tug Fork River, and lowest in Cabin Creek (10.59 kg∙ha-1∙y-1), a Guyandotte River tributary. Creek Chub Semotilus atromaculatus, Mottled Sculpin Cottus bairdii and Blacknose Dace Rhinicthys atratulus were the most abundant species among sites, accounting for >90% of all sampled individuals. Reference condition criteria were also selected and metrics calculated for each of the three stream sites using a variety of established metrics. According to established criteria, all three of our sites scored high enough to be listed as “reference” sites. Third, a comprehensive GIS analysis was conducted in order to determine land use patterns and predict where similar assemblages would be present using various climatological and physical characteristics of our stream sites. These analyses revealed rapid expansion of surface mining activities putting many stream systems at risk.
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Etude des phénomènes de biotransformation des hydrocarbures aromatiques polycycliques (HAP) par les organismes aquatiques (poissons) : relation exposition - génotoxicitéLe Dû-Lacoste, Marie 12 December 2008 (has links)
Afin d’étudier la santé d’un écosystème marin et le potentiel toxique d’une contamination telle que celle liée à la présence d’hydrocarbures aromatiques polycycliques (HAP), il est nécessaire, outre de connaître les niveaux de contamination du milieu, de pouvoir accéder à la fraction toxique à laquelle les organismes aquatiques ont été exposés et de connaître les effets toxiques des contaminants incriminés. L’exposition et la contamination des organismes aquatiques aux HAP ont généralement été évaluées par le dosage des HAP bioaccumulés dans les tissus. Or, cette approche est critiquable si l'on tient compte des capacités de biotransformation des organismes, notamment des vertébrés, et des propriétés toxiques des produits de transformation formés. Dans ce contexte, l’objectif de cette thèse est d’étudier les phénomènes de bioccumulation et de biotransformation des HAP chez les organismes marins via l’étude des métabolites de HAP. Un effort de validation de biomarqueurs pertinents pour évaluer la génotoxicité des HAP en lien avec la contamination chimique des tissus et la production de métabolites est nécessaire. Des méthodes de dosage des métabolites de HAP dans les matrices biologiques ont tout d’abord été mises au point. Ces outils analytiques sensibles, innovants et performants ont ensuite été appliqués lors d’expositions de poissons à des HAP via différentes voies de contamination en milieu contrôlé. Ils ont permis une meilleure connaissance des phénomènes de biotransformation des HAP. Enfin, des études de terrain ont été réalisées, notamment dans le cadre de l’étude de la contamination de la Baie de Seine, montrant l’applicabilité du dosage des métabolites de HAP dans l’évaluation de l’exposition des organismes aux HAP en milieu naturel. Dans le cadre d’une approche intégrée chimie/biologie, ces travaux ont permis d’apporter une contribution dans le transfert méthodologique des biomarqueurs de génotoxicité des HAP pour des applications en surveillance de l’Atlantique Nord et notamment dans la Manche. / In order to study the health of a marine ecosystem and the toxic potential of a contamination such as that related to the presence of polycyclic aromatic hydrocarbons (PAHs), it is necessary, in addition to the determination of environmental contamination levels, to have access to the fraction for aquatic organisms have been exposed to and to identify the toxic effects of the contaminants. The exposure and contamination of aquatic organisms to PAHs have generally been evaluated by the quantification of bioaccumulated PAHs in tissues. However, this approach is criticable when taking into account the biotransformation capabilities of organisms such as vertebrates and the toxic properties of biotransformation products. In this way, the aim of this study is to study PAH bioaccumulation and biotransformation phenomena through the PAH metabolites study. An effort for the validation of relevant biomarkers to evaluate the link between the genotoxicity of PAHs, PAHs body burden and PAH metabolites production, is necessary. Analytical techniques to quantify PAH metabolites in biological matrices have first been set up. Then, these sensible, innovating and powerful analytical tools have been applied to the study of fish exposures to PAHs through differents contamination sources in controlled conditions. This allowed to have a better understanding of PAH biotransformation phenomena. Finally, field studies have been led, notably to study the contamination of the Seine bay, demonstrating the applicability of the quantification of PAH metabolites to evaluate the exposure and the contamination of organisms to PAHs in natural environment. Within the framework of an integrated approach chemistry/biology, this work led to a contribution in the methodological transfer of biomarkers of PAH genotoxicity
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Radon Contamination of Residences in a City Built Upon a Karst Landscape Bowling Green, Warren County, KentuckyWebster, James William 01 December 1990 (has links)
The United States Environmental Protection Agency (EPA) estimates that 8 to 12% of U.S. homes have radon concentrations that equal or exceed 4 picocuries per liter (pCi/l). A statewide screening of Kentucky by EPA resulted in an average residential radon concentration of 2.8 pCi/l with 17% of the homes at or above 4 pCi/l. EPA requires routine monitoring and maintenance or worker health records in mines and caves having radon daughter concentrations at or above 0.30 working levels (WL).
Bowling Green is a city located in a karst region of south central Kentucky. Residents of Bowling Green have been subjected to various environmental hazards that are closely linked with the landscape. Of particular concern has been the recurring problem of chemical fumes rising from contaminated caves and collecting in buildings.
The author has recorded radon daughter concentrations in excess of 5 WLs in caves beneath Bowling Green. A preliminary screening of residential radon concentrations in Bowling Green resulted in an average concentration of 25.8 pCi/l. Two of the test results were above 100 pCi/l and were recorded in homes that were known to have a history of fume problems. These results spurred this thesis which addresses the magnitude of residential radon contamination in Bowling Green and its association with the karst landscape.
The investigation involved radon daughter testing in Bowling Green caves and residential radon testing. A total of 84 measurements were conducted in order to establish a working average residential radon concentration for the city. Twelve other tests were performed in buildings known to have a history of chemical fume problems. The resulting average residential radon concentration was 9.06 pCi/l. First floor measurements averaged 4.73 pCi/l, and basement measurements averaged 22.92 pCi/l. The overall average for buildings with a history of fume problems was 35.15 pCi/l with first floors and basements averaging 29.75 and 57.40 pCi/l respectively. Forty-six percent of the homes comprising the sample population equaled or exceeded 4 pCi/l.
The results of the investigation indicate that: Bowling Green Caves sometime have radon daughter concentrations far in excess of 0.30 WL. The average residential radon concentration for Bowling Green exceeds the average for Kentucky obtained by EPA. The percentage of houses that have radon concentrations at or above 4 pCi/l for the study area exceeds the estimated national average of 8 to 12% and the statewide average.
The author suggests that insufficient data was collected to determine whether radon concentrations in Bowling Green homes with a history of chemical fume problems are higher than for the city as a whole.
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Assessing the presence / absence of environmental reporting in the annual reports of South African listed companiesGear, Simon 30 January 2015 (has links)
A research report submitted to the Faculty of Science, in partial fulfilment of the requirements for the degree of Master of Science, University of the Witwatersrand, Johannesburg. 30 October 2014. / The reporting of non-financial data has steadily increased over the past three decades and there
is evidence that including social and environmental indicators in the annual report is correlated
with improved environmental performance of listed companies. The annual reports of a selection
of 82 JSE-listed companies, including the full JSE Top 40, were analysed for mentions of the
natural environment for the reporting periods of 2010 and 2012. The introduction of the King III
principles by the JSE occurred between these two periods, providing an opportunity to assess the
impacts that this move had on annual reporting. Attention was paid to mentions in the leadership
reviews by the Chairmen and the CEOs, presence of empirical environmental data, environmental
KPIs and the manner in which these data were presented and discussed in the report. In addition,
a survey asking qualitative details of company reporting policy was conducted among the staff
members responsible for environmental reporting of these companies. The standard and
sophistication of environmental reporting varied widely across the sample, with Top 40 companies
generally reporting better than non-Top 40 companies. Primary industries were more likely to
provide empirical data than service industries and only agricultural industries appeared concerned
with the manner in which changes in the natural environment could affect their business. There
remains a wide variation in the type and detail of environmental reporting across the sample with
very little evidence that the data, as reported, play a meaningful role in the decisions of either
management or investors.
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Sistemas optoeletrônicos portáteis para detecção de gases, oxigênio dissolvido e de metais pesados aplicados no controle ambiental. / Portable environmental monitoring systems, dissolved oxygen, heavy metals, colorimetric, fluorimetry.Braga, Mauro Sergio 02 August 2016 (has links)
O monitoramento ambiental de forma contínua e em tempo real são desafios da realidade atual dos grandes centros urbanos, com a finalidade de prevenir desastres ambientais que possam pôr em perigo a saúde dos seres humanos e a existência de sistemas biológicos. Na presente tese foram propostos e desenvolvidos sistemas optoeletrônicos portáteis aplicados na detecção de O2, OD e íons de metais pesados, visando seu emprego no monitoramento de sistemas hidrológicos como mares, rios, lagos e lençóis freáticos. A definição final da estrutura do sistema portátil foi atingida após o desenvolvimento sistemático de diferentes ensaios experimentais. Primeiramente, foram estudadas e analisadas matrizes hospedeiras em estado sólido que fossem capazes de hospedar sistemas moleculares corantes sensíveis a certas substâncias específicas. A seguir, foi proposta e executada a integração direta dos filmes hospedeiros, dopados com moléculas corantes ativas, diretamente na superfície ativa de dispositivos fotodetectores para detecção de O2 e OD. Os resultados obtidos com estes sistemas que integram o detector e o filme ativo mostraram o mesmo nível de desempenho aos espectrômetros de bancada. Finalmente, de posse destes resultados, foi projetado e desenvolvido um sistema colorimétrico e fluorimétrico portátil e embarcado em uma placa de aquisição (myRIO-1900) da National Instruments, aplicado na detecção e classificação de íons metálicos. Destaque principal é outorgado à aplicação do colorímetro que, juntamente com o processamento de sinais e análises de padrões, utilizando o método de discriminante de Fisher, permitiu obter resultados excelentes na detecção e classificação dos íons de Pb2+, Cd2+, Zn2+, Cu2+, Fe3+ e Ni2+, com os mesmos níveis de desempenho que os obtidos a partir de espectrômetros de bancada de elevada resolução espectral. O sistema portátil desenvolvido sugere sua aplicação no controle ambiental in situ e em tempo real, podendo ser integrado em uma rede de sensores que possam fornecer dados de maneira contínua e receber comandos de centros de controle de monitoramento ambiental. No entanto, seria necessária a formulação de algoritmos eficientes no processo de mineração de dados da rede de sensores. / The continuous and in real time environmental monitoring are challenges of the current days of large urban centers, with the aim of preventing environmental disasters that could endanger human health and the existence of biological systems. In this thesis we have proposed and developed portable optoelectronic systems applied to the detection of O2, OD and heavy metal ions, aiming its use in monitoring hydrological systems such as oceans, rivers, lakes and groundwater. The final definition of the portable system structure was achieved after the systematic development of different experimental assays. First, host matrices were studied and analyzed in solid state which were able to host dye molecular systems sensitive to certain substances. Then, we proposed and executed the direct integration of the host film, doped with active dye molecules directly on the active surface of photodetector devices to the detection of O2 and OD. The results obtained with these systems that integrate the detector and the active film showed the same level of performance than those of benchtop spectrometers. Finally, with these results, we designed and developed a colorimetric and fluorimetric portable system with an embedded acquisition board (myRIO-1900) from National Instruments, applied to the detection and classification of metal ions. Main focus is given to the application of the colorimeter which, along with the signal processing and pattern analysis using the Fisher discriminant method, allowed to obtain excellent results in the detection and classification of Pb2+, Cd2+, Zn2+, Cu2+, Fe3+ and Ni2+ ions, with the same level of performance related to those obtained from high spectral resolution benchtop spectrometers. The portable system developed in the present thesis suggests its application in environmental control in situ and in real time, so that it can be integrated in a network of sensors that may provide continuous data and receive commands from environmental monitoring control center; nevertheless, requiring for that the development of efficient algorithms in data mining process of the sensor network.
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Sistemas optoeletrônicos portáteis para detecção de gases, oxigênio dissolvido e de metais pesados aplicados no controle ambiental. / Portable environmental monitoring systems, dissolved oxygen, heavy metals, colorimetric, fluorimetry.Mauro Sergio Braga 02 August 2016 (has links)
O monitoramento ambiental de forma contínua e em tempo real são desafios da realidade atual dos grandes centros urbanos, com a finalidade de prevenir desastres ambientais que possam pôr em perigo a saúde dos seres humanos e a existência de sistemas biológicos. Na presente tese foram propostos e desenvolvidos sistemas optoeletrônicos portáteis aplicados na detecção de O2, OD e íons de metais pesados, visando seu emprego no monitoramento de sistemas hidrológicos como mares, rios, lagos e lençóis freáticos. A definição final da estrutura do sistema portátil foi atingida após o desenvolvimento sistemático de diferentes ensaios experimentais. Primeiramente, foram estudadas e analisadas matrizes hospedeiras em estado sólido que fossem capazes de hospedar sistemas moleculares corantes sensíveis a certas substâncias específicas. A seguir, foi proposta e executada a integração direta dos filmes hospedeiros, dopados com moléculas corantes ativas, diretamente na superfície ativa de dispositivos fotodetectores para detecção de O2 e OD. Os resultados obtidos com estes sistemas que integram o detector e o filme ativo mostraram o mesmo nível de desempenho aos espectrômetros de bancada. Finalmente, de posse destes resultados, foi projetado e desenvolvido um sistema colorimétrico e fluorimétrico portátil e embarcado em uma placa de aquisição (myRIO-1900) da National Instruments, aplicado na detecção e classificação de íons metálicos. Destaque principal é outorgado à aplicação do colorímetro que, juntamente com o processamento de sinais e análises de padrões, utilizando o método de discriminante de Fisher, permitiu obter resultados excelentes na detecção e classificação dos íons de Pb2+, Cd2+, Zn2+, Cu2+, Fe3+ e Ni2+, com os mesmos níveis de desempenho que os obtidos a partir de espectrômetros de bancada de elevada resolução espectral. O sistema portátil desenvolvido sugere sua aplicação no controle ambiental in situ e em tempo real, podendo ser integrado em uma rede de sensores que possam fornecer dados de maneira contínua e receber comandos de centros de controle de monitoramento ambiental. No entanto, seria necessária a formulação de algoritmos eficientes no processo de mineração de dados da rede de sensores. / The continuous and in real time environmental monitoring are challenges of the current days of large urban centers, with the aim of preventing environmental disasters that could endanger human health and the existence of biological systems. In this thesis we have proposed and developed portable optoelectronic systems applied to the detection of O2, OD and heavy metal ions, aiming its use in monitoring hydrological systems such as oceans, rivers, lakes and groundwater. The final definition of the portable system structure was achieved after the systematic development of different experimental assays. First, host matrices were studied and analyzed in solid state which were able to host dye molecular systems sensitive to certain substances. Then, we proposed and executed the direct integration of the host film, doped with active dye molecules directly on the active surface of photodetector devices to the detection of O2 and OD. The results obtained with these systems that integrate the detector and the active film showed the same level of performance than those of benchtop spectrometers. Finally, with these results, we designed and developed a colorimetric and fluorimetric portable system with an embedded acquisition board (myRIO-1900) from National Instruments, applied to the detection and classification of metal ions. Main focus is given to the application of the colorimeter which, along with the signal processing and pattern analysis using the Fisher discriminant method, allowed to obtain excellent results in the detection and classification of Pb2+, Cd2+, Zn2+, Cu2+, Fe3+ and Ni2+ ions, with the same level of performance related to those obtained from high spectral resolution benchtop spectrometers. The portable system developed in the present thesis suggests its application in environmental control in situ and in real time, so that it can be integrated in a network of sensors that may provide continuous data and receive commands from environmental monitoring control center; nevertheless, requiring for that the development of efficient algorithms in data mining process of the sensor network.
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Usando biomonitoramento para avaliar o impacto da poluição atmosférica no entorno de indústrias / Using biomonitoring to evaluate impact of air pollution around industriesPriscila Iovine 12 December 2012 (has links)
Fontes de poluição atmosférica têm aumentado em países em desenvolvimento, tornando extremamente difícil o acesso aos efeitos da poluição atmosférica na saúde pública. Bioensaios com plantas têm sido extensivamente utilizados para monitorar a poluição atmosférica em áreas desprovidas de sistemas de monitoramento da qualidade do ar convencionais pela sua simplicidade, baixo custo e alta sensibilidade. O presente estudo visa caracterizar a distribuição espacial da concentração de poluentes no entorno de indústrias através de evidências de toxicidade celular e acúmulo foliar utilizando planta local (Catharanthus roseus (L.) G. Don). O abortamento polínico foi quantificado em microscópio óptico (400x). O acúmulo de elementos traços foi avaliado em EDXRF (Energy Dispersive X-Ray Fluorescence). Os resultados obtidos para a área de estudo 1 mostram que a taxa de abortamento polínico é maior quanto mais próximo da indústria (p=0,047). Para o acúmulo foliar, foram encontrados os elementos S, Fe e Na que se relacionam com produtos de combustão; processo industrial; e aerossol marinho. Para a área de estudo 2, a taxa de abortamento polínico aumenta com a proximidade da área de alto tráfego veicular assim como a concentração dos elementos Al, Cu, S e Zn nas folhas pela Análise de Regressão Linear. Este estudo mostra que as áreas no entorno de fontes emissoras de poluição têm alta concentração de elementos - traço e dano celular o que indica riscos à saúde da população local. Nossos resultados reforçam que o uso de metodologias alternativas e simples como testes de abortamento polínico e bioacumulação em folhas são apropriados para caracterizar gradientes de concentração em áreas desprovidas de sistema de monitoramento da qualidade do ar, em escalas maiores do que as já estudadas. A combinação de técnicas de biomonitoramento e geoprocessamento pode ser utilizada para monitoramento ambiental em áreas com tecnologia limitada / Developing countries are experiencing increases in air pollution sources, making assessment of air pollution impact on human health extremely difficult. Plant bioassays have been widely employed to monitor air pollution in areas devoid of conventional air pollution monitoring systems because of their simplicity, low cost and high sensitivity. The aim of this study was to determine the area of influence of industries using local flora (Catharanthus roseus (L.) G. Don). Abortive pollen tests and the accumulation of toxic elements in leaves were used to detect possible risks to health of the local population. Abortive grains were evaluated through the use of a microscope under 400-fold magnification. The trace elements accumulation was evaluated by using EDXRF (Energy Dispersive X-Ray Fluorescence). Results for study site 1 shown that the closer the distance from the industry, the higher the pollen abortion rate (p=0,047). For bioaccumulation test, S, Fe and Na were associated to combustion of fossil fuels, industrial process and marine aerosol. For study site 2, the closer the distance from the major source of traffic, the higher the pollen abortion rate. The same behavior was observed for Al, Cu, S and Zn concentrations in Linear Regression Analyses. The distribution of element concentrations was elaborated in maps with the obtained results. This work showed that the areas surrounding the emission sources had a higher concentration of toxic elements, leading to greater biological damage, which indicates health risks to the local population. Our results reinforce that the use of alternative and simple methods such as pollen abortion rates and bioaccumulation in leaves are appropriate for characterizing air quality gradients in areas devoid of conventional air pollution monitoring systems, even at greater scales than have been tested before. The association of this technique and geographic information system can be used for environmental screening in areas with limited technology
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O uso de formigas como bioindicadores no monitoramento ambiental de revegetação de áreas mineradas. / The uses of ants as bioindicators in the environmental monitoring of mined sites revegetation.Ré, Tatiana Monteiro 14 July 2007 (has links)
As atividades de mineração são o suporte do crescimento e do desenvolvimento econômico da sociedade moderna. Por outro lado, estas atividades são causadoras de consideráveis modificações ambientais. Assim, faz-se necessário o desenvolvimento da Avaliação de Impacto Ambiental, que vise a definição de planos de controle ambiental que garanta a mitigação de tais impactos, bem como o seu monitoramento para verificação da eficácia das medidas definidas. Esta avaliação é uma exigência da Constituição Brasileira de 1988: toda atividade poluidora deve recuperar os danos causados ao meio ambiente. A obrigação de recuperar consiste em repor a área em uma situação de normalidade e estabilidade. Desta forma, algumas medidas mitigadoras, como a reposição vegetal e a reimplantação da fauna, estão sendo tomadas por alguns empreendimentos, as quais medidas necessitam ser monitoradas, a fim de permitir a avaliação de sua eficácia e evolução ao longo do tempo. O biomonitoramento é uma prática nova nas ciências ambientais. Este estudo propõe uma metodologia de monitoramento biológico capaz de avaliar a eficácia e a evolução das técnicas de revegetação na mineração. Como estudo de caso, foi selecionada a Millennium Chemicals - empresa que pertence ao Grupo Lyondell Chemicals Company - que produz minerais pesados, na Mina do Guaju, localizada no extremo norte do Estado da Paraíba. Trata-se de uma proposta metodológica que visa uma simples e prática aplicabilidade, permitindo a continuidade do biomonitoramento ambiental por um longo período de tempo com a utilização de insetos, em especial da Família Formicidae. Além da proposta de metodologia, este trabalho também contempla resultados e análises do total de três coletas, que foram realizadas ao longo de um ano. A metodologia desenvolvida, incluindo os processos de coletas e análise de resultados, representa uma contribuição importante para a redução de custos despendidos para o processo de gerenciamento ambiental de empresas de mineração, através de um melhor direcionamento dos procedimentos ambientais adotados, sua relação com o 9 planejamento de lavra, e permitindo um monitoramento da área afetada pela mineração. / The mining industry is known to contribute to the growth and the economic development of modern society. However, these activities may generate considerable modifications to the environment. Therefore, it is necessary the development of an Environmental Impact Evaluation that aims the definition of the environmental control plans that guarantee the mitigation of such impacts, as well as their monitoring to check the effectiveness of the defined measures. Such a plan is a now requirement introduced by the Brazilian Constitution of 1988: all polluting activities must recover the actual damages to the environment. Because of that, procedures such as vegetation replacement and re-establishment of the fauna are being taken by most companies of mining where rehabilitation measures need to be monitored, in order to allow the evaluation of its effectiveness and progress throughout time. Biomonitoring is a new monitoring practice in environmental science. The present research work has the objective of developing a biological automonitoring methodology for evaluating the effectiveness and the progress of revegetation techniques in mined-out areas. As study case, it was selected Millennium Chemicals - a company that belongs to Lyondell Chemicals Company - that produces heavy minerals in Mina do Guaju, located in the extreme north of Paraíba State. The proposed methodology includes a simple and practical way for measuring biomonitored environment for an extended period of time with the use of insects, with particular focus on the Formicidae Family. In addition to the methodology proposed, this research work also contemplates preliminary results and analysis of the first collection, of the total of three collections, which should be carried throughout one year. The methodology proposed, which include data collection and analysis of results, represents an important contribution for the reduction of costs of environmental management of mining companies, through better environmental control procedures, and their relation with mine planning, and auto-monitoring of the areas eventually affected by mining activities.
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