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1.
Copper is the biocide of choice for present-day antifouling (AF) paints. It is also a major source of copper loading in to the marine environment and, as such, might cause local copper levels to exceed water quality criteria. The present study is multifaceted and looks into the overall impact of copper-based AF paints on copper concentrations along a 64-km stretch of the Indian River Lagoon and at Port Canaveral, Florida. This preliminary study is one of the first to outline issues and present background evidence on the current status of copper and copper-based AF usage in Florida and to address the need for management. Previous measurements of copper levels in these waters show a history of copper contamination close to marinas, boatyards, and at Port Canaveral that often exceed state and federal water quality standards. Further, we estimate that the total annual copper input into the Indian River Lagoon is between 1.7 tons/year (sailboats) and 2.1 tons/year (powerboats) from boats in 14 marinas. We estimate the copper input into Port Canaveral to be about 1.4 tons/year from seven cruise ships. A brief survey of marina operators and boat owners revealed attitudes and practices associated with AF paint usage that ranged from excellent to inferior. Management recommendations are made for a proactive approach to improving AF paint selection and application, assessing the environmental status of copper, and redefining existing management practices for sustainable AF paint usage and environmental health.  相似文献   

2.
Marian Radetzki   《Resources Policy》2009,34(4):176-184
Measured by weight, copper is the third most important metal used by man. The annual value of its 2007 output was on a par with the GDP of e.g. Ukraine. Copper is also one of the oldest metals, its employment going back 7000 years. For millennia, it was predominantly employed for decorative purposes, coinage and in warfare. Technical breakthroughs in antiquity, like smelting and alloying, expanded its production and enhanced its utility. Copper's true heyday occurred after 1850, with the usage of electricity. In the period since then, volumes increased 300-fold, while costs and prices declined. With impressive progress in the technology of its production and consumption, the red metal has been able to hold its own, despite the emergence over history of formidable substitutes like iron, aluminum, plastics and optic fiber.  相似文献   

3.
Mineral exploitation is a necessary component of China's economic development goals. Such exploitation brings with it the potential for serious environmental degradation. Careful environmental impact assessments of mining projects are required in order to implement China's environmental protection law and identify measures for protecting surrounding agricultural environments. This article describes an environmental information system that has been developed for the purpose of assisting with the environmental impact assessment of nonferrous mining operations with a particular focus on agricultural impacts. An application of the environmental information system to the Yongping copper mine, located in Jiangxi Province, is discussed. The role of the environmental information system is analyzing and predicting soil contamination from heavy metals and other types of impacts from this mining operation is described. The environmental information system is designed for implementation on an IBM PC/XT microcomputer. The experience gained from the Yongping copper mine application and the growing popularity of microcomputers in China indicate a significant potential for the effective use of a microcomputer-based environmental information system in other parts of China.  相似文献   

4.
Despite numerous studies, the ‘Porter Hypothesis’ (PH), which states well-designed regulations can compel manufacturers to develop innovations with both economic and environmental benefits, remains unsettled. We examine two significant cases for which PH claims were once made: the British alkali industry and the (Tennessee) Copper Basin smelting operations. Our conclusions are: (1) the PH is based on a flawed understanding of how ‘win win’ innovations spontaneously emerge in competitive settings, (2) regulatory pressures were only one (and typically minor) factor, and (3) “strict and well designed” environmental regulations are unlikely to deliver superior outcomes to traditional property rights-based approaches.  相似文献   

5.
This paper depicts the method used to quantify the environmental impact of mining activities in surface mine projects. The affected environment was broken down into thirteen components, such as Human health and immunity, Surface water, Air quality, etc. The effect of twenty impacting factors from the mining and milling activities was then calculated for each Environmental Component. Environmental assessments are often performed by using matrix methods in which one dimension of the matrix is the “Impacting Factor” and the other one is the “Environmental Components”. For the presented matrix method, each Impacting Factor was first given a magnitude between −10 and 10. These factors are used to set up a matrix named Impacting Factor Matrix, whose elements represent the Impacting Factor values. The effects of each Impacting Factor on each Environmental Component were then quantified by multiplying the Impacting Factor Matrix by Weighting Factor Matrix. The elements of the weighting factors matrix reflect the effects of each Impacting Factor on each Environmental Component. The outlined method was originally developed for a mining and milling operation in Iran, but it can successfully be used for mining ventures and more general industrial activities in other countries in accordance to their environmental regulations and laws.  相似文献   

6.
Throughout history, mining communities have invariably found themselves striving for a good quality of life and a long‐term future. In the 21st century, problems of maintaining the economic vitality of mining regions are now compounded by concerns about the biophysical integrity of the local environment. In regions of the world where the economic viability of the resource is marginal and achieving a reasonable quality of life is a daily struggle, sustainable mining may seem to be a dubious prospect at best. Yet the twin imperatives of global political forces and burgeoning environmental concerns are requiring industry, governments and other interests to re‐conceptualize the way in which mining takes place in communities. Although mining itself may not be seen as an industry that contributes to the achievement of environmental objectives, it could — with careful planning — be used as a tool to foster a more sustainable and healthier community. This argument is considered in the context of the coal mining region of Santa Catarina, Brazil.  相似文献   

7.
As part of the process of drafting environmental guidelines for mining, a study of the impact of mining on the environment was undertaken by the Ghanaian Minerals Commission. The study evaluated the impact of underground mines and surface mines on the physical environment as well as their socio-economic impact. Among its conclusions: for both types of mines, drainage emptying out into rivers is a major cause of pollution; mine roads open up uninhabited regions to farming and other uses. Underground mines employ more workers than surface mines; the socioeconomic benefits of the surface mines to local people are less than those of underground mines.  相似文献   

8.
Copper flotation waste from copper production using a pyrometallurgical process contains toxic metals such as Cu, Zn, Co and Pb. Because of the presence of trace amounts of these highly toxic metals, copper flotation waste contributes to environmental pollution. In this study, the leaching characteristics of copper flotation waste from the Black Sea Copper Works in Samsun, Turkey have been investigated before and after vitrification. Samples obtained from the factory were subjected to toxicity tests such as the extraction procedure toxicity test (EP Tox), the toxicity characteristic leaching procedure (TCLP) and the "method A" extraction procedure of the American Society of Testing and Materials. The leaching tests showed that the content of some elements in the waste before vitrification exceed the regulatory limits and cannot be disposed of in the present form. Therefore, a stabilization or inertization treatment is necessary prior to disposal. Vitrification was found to stabilize heavy metals in the copper flotation waste successfully and leaching of these metals was largely reduced. Therefore, vitrification can be an acceptable method for disposal of copper flotation waste.  相似文献   

9.
Environmental protection is a topical and controversial issue of contemporary Third World development. As a result of the growing crisis of environment and development as well as issues of global environmental balance, divergent views and proposals have been put forward by external governments, international agencies, and environmental groups in resolving the environmental degradation problems of the developing world. However, very little appraisal has been made of the efforts by indigenous Third World governments in facing up to their environmental conservation issues. This article examines the role of past and recent government environmental control policies and programs in Nigeria. The article analyzes three aspects of environmental protection: (1) the theoretical economic bases of environmental protection and the Nigerian approach to environmental protection, including traditional values and modern institutional control measures, the latter embracing nature conservation efforts; (2) environmental considerations in national development plans; and (3) the evolution of a federal environmental protection agency and a national policy on environment. Finally, the article discusses the future challenges and directions for environmental policy.  相似文献   

10.
随着我国铜冶炼(原生铜和再生铜)行业对含铜二次资源需求量的增加,集废旧资源回收、拆解和分选、二次资源出售、铜再生利用于一体的产业链逐渐发展壮大起来。然而高能耗、高污染、低质量、低产出的特点在再生铜行业依然存在,环境监管政策和标准也不健全不完善。随着人们对美丽生态环境诉求的增加,必须加强有色金属行业的环境管理。本文对再生铜行业发展和环境管理做了一些思考,特别是对再生铜行业环境管理存在的问题进行了分析,并针对问题提出了几点政策性建议,以期为我国再生铜产业的环境友好发展和环境监管提供借鉴。  相似文献   

11.
/ Aquatic resources in Soda Butte Creek within Yellowstone National Park, USA, continue to be threatened by heavy metals from historical mining and milling activities that occurred upstream of the park's boundary. This includes the residue of gold, silver, and copper ore mining and processing in the early 1900s near Cooke City, Montana, just downstream of the creek's headwaters. Toxicity tests, using surrogate test species, and analyses of metals in water, sediments, and macroinvertebrate tissue were conducted from 1993 to 1995. Chronic toxicity to test species was greater in the spring than the fall and metal concentrations were elevated in the spring with copper exceeding water quality criteria in 1995. Tests with amphipods using pore water and whole sediment from the creek and copper concentrations in the tissue of macroinvertebrates and fish also suggest that copper is the metal of concern in the watershed. In order to understand current conditions in Soda Butte Creek, heavy metals, especially copper, must be considered important factors in the aquatic and riparian ecosystems within and along the creek extending into Yellowstone National Park.KEY WORDS: Mining; Metals; Toxicity; Biomonitoring; Copper; Yellowstone National Park  相似文献   

12.
Intensified surface mining, power generation, and smelting operations in the Hunter River lowlands, NSW, Australia have posed numerous new environmental management problems. Legislative controls over water, soils, and land use management have been clearly insufficient and remain so. The complex range of environmental changes is challenging government agencies as well as coal developers. While water demands are increasing in the region the proportionally greatest competitors are power generation and irrigation. Comprehensive regional water quality assessment is inadequate and divided between a number of agencies with fragmentary interests. Coal development inquiries signal further controversy over appropriate management solutions and are an ongoing phenomenon in the region. The early 1980s resource boom has been followed by lower rates of economic growth, which have resulted in disparate agency responses to major ongoing environmental questions. While issue attention cycles are often remarkably short in environmental management, matters of water, land, and air quality require intensive and ongoing monitoring and policy development.  相似文献   

13.
The impact of disasters, whether natural or man-made, not only has human dimensions, but environmental ones as well. Environmental conditions may exacerbate the impact of a disaster, and vice versa, disasters tend to have an impact on the environment. Deforestation, forest management practices, or agriculture systems can worsen the negative environmental impacts of a storm or typhoon, leading to landslides, flooding, silting, and ground/surface water contamination. We have only now come to understand these cyclical causes and impacts and realize that taking care of our natural resources and managing them wisely not only assures that future generations will be able to live in sustainable ways, but also reduces the risks that natural and man-made hazards pose to people living today. Emphasizing and reinforcing the centrality of environmental concerns in disaster management has become a critical priority, requiring the sound management of natural resources as a tool to prevent disasters and lessen their impacts on people, their homes, and livelihoods. As the horrors of the Asian tsunami of December 2004 continue to be evaluated, and people in the region slowly attempt to build a semblance of normalcy, we have to look to the lessons learnt from the tsunami disaster as an opportunity to prepare ourselves better for future disasters. This article focuses on findings and lessons learnt on the environmental aspects of the tsunami, and its implications on disaster preparedness plans. This article essentially emphasizes the cyclical interrelations between environments and disasters, by studying the findings and assessments of the recent Indian Ocean earthquake and tsunami that struck on 26 December 2004. It specifically looks at four key affected countries - Maldives, Sri Lanka, Indonesia, and Thailand.  相似文献   

14.
In August 2000, a survey of public opinion was carried out among visitors, local residents and representatives of local self-governments in the territory of the Podyji/Thaya River Basin National Park in the Czech Republic. The goal was to obtain stakeholders' opinions and attitudes towards nature conservation, the National Park and tourism within the territory which used to be closed to the public for 40 years due to the Iron Curtain. Without the knowledge of opinions of stakeholders it is not possible to manage nature conservation and development in the protected area properly. Using the method of direct interviews, 646 questionnaires where collected, of which 523 were from visitors and tourists, 115 from local residents and 8 from mayors of towns/villages. The questionnaires were analysed in order to detect differences in attitudes among the respondent groups in the following thematic areas: (a) the National Park, its environment and perception of it by respondents; (b) relationship of respondents to the territory; (c) tourism and attitudes towards recreational activities; (d) the Administration of the National Park and evaluation of its work; and (e) economic impact of tourism for local communities. One section of the study focused on comparing the attitudes between local inhabitants and mayors and the other section presents a collation of opinions from locals, mayors and tourists. Although a positive evaluation of the national park dominated the results, some negative attitudes and experiences were identified among locals. In addition, the situation also differed within communities. Results also indicated a relatively strong relationship to the territory by locals, but low job opportunities and income from tourism. The level of tourism intensity was perceived as an increasing and sometimes disturbing factor for local communities; motoring was observed as being the most negative activity for nature. The Administration of the Podyji/Thaya River Basin National Park was sometimes criticised and the communication with the community was not always evaluated satisfactorily. All groups of respondents identified waste management to be the most pressing issue. Identification of differences in attitudes of interviewed respondents may be effectively used in planning environmental management and sustainable tourism development in the area.  相似文献   

15.
准东煤电煤化工开发建设中的生态环境问题探讨   总被引:1,自引:0,他引:1  
文章通过分析准东地区煤炭资源分布及产业带入驻企业的基本情况,阐述了准东煤电煤化工产业带的发展及现状,重点分析了准东煤炭资源开发需要关注的生态环境问题:如对水资源的影响;对大气环境的影响;对地表环境的影响以及对自然保护区的影响.并就如何解决这类问题的对策和建议做了充分的讨论,为准东煤炭资源开发建设与生态环境的保护做了有益的探索,也为管理部门更好的、科学的管理准东煤田建设提供了可资借鉴和参考的依据.  相似文献   

16.
Establishment of plans for environmental planning and management requires that a number of natural and societal factors must be taken into consideration. Insights into the inherent dynamics of nature as well as the role that past human activities have played for establishing the current condition of the landscape and the natural environment in general are essential. Many natural and man-made changes occur over time scales of decades or centuries, and these are difficult to comprehend without a historical perspective. Such a perspective can be obtained using palaeoecological studies, i.e. by geochemical and biological analyses of lake sediment and peat deposits. To illustrate the long-term dynamics of nature and particularly the role of man, we present here five case studies from Sweden concerning pollution, lake acidification, lake eutrophication, biodiversity, and landscape dynamics and conservation – topics of broad interests – and discuss benefits of including a longer time perspective in environmental management.  相似文献   

17.
Nuclear and nonnuclear industrial and research activities have been conducted on the Hanford reservation since 1943. Materials originating from these activities may enter the surrounding environment through releases of airborne and liquid effluents and solid wastes. Concern about the environmental effects of these releases has evolved over the past four decades into a comprehensive onsite and offsite monitoring program. Today, environmental monitoring to assess potential impacts of released materials includes field sampling and chemical and physical analyses of air, ground and surface water, fish and wildlife, soil, vegetation, and foodstuffs. This paper reviews the history of Hanford operations and summarizes the current environmental monitoring program and its major findings. Mathematical models based on monitoring data show that radiation doses to people living near the Hanford site are well below existing regulatory standards. Only trace amounts of radionuclides from Hanford have been detected in the offsite environment.  相似文献   

18.
There is a growing interest among scholars in instruments based on environmental worldview. Several studies have used instruments of this kind to compare groups of children or to assess the impact of environmental education initiatives (EEIs) on children’s environmental worldview. When using scales of this nature, it is important to control for factors that might blur the true impact of EEIs. One such factor - and which may have been neglected - is personality. This study (n = 957) examines the link between environmental worldview of Belgian adolescents (as measured by the New Environmental Paradigm scale for children - NEP) and their personality (as measured by the Hierarchical Personality Inventory for Children - HiPIC). The results show that adolescents who are willing to take responsibility for their actions and who feel in control over the outcomes of their decisions are more likely to have an ecocentric worldview. Furthermore, this study demonstrates that, for Belgian adolescents, egocentrism and ecocentrism are opposite conceptions. All correlations were, however, small and showed no deterministic pattern in the relationship between adolescents’ environmental worldview and personality, indicating that worldviews are not stable or innate characteristics within individuals, but can be influenced by interactions between the individual and its context. Personality traits explained only a very small part of the variation in adolescents’ environmental worldview (.7%), suggesting that they are unlikely to blur the impact of EEIs in worldview-based assessment. This is an important finding as it indicates that the results of studies showing differences in the environmental worldview of different groups of respondents or changes in their environmental worldview as a result of taking part in an EEI are not artefacts of non-control for personality and that they may, therefore, reflect genuine differences, changes or impacts.  相似文献   

19.
Do individuals’ perceptions of their interdependence with the natural environment affect their environmental behaviors? From the perspective of interdependence theory, we introduce a scale to measure commitment to the natural environment. In Study 1, higher levels of commitment to the environment and greater inclusion of nature in the self separately predicted higher levels of pro-environmental behavior, even when controlling for social desirability and ecological worldview. In Study 2, participants primed to experience high commitment to the environment reported greater levels of pro-environmental behavioral intentions as well as pro-environmental behavior relative to participants primed to experience low commitment to the environment. Commitment to the natural environment is a new theoretical construct that predicts environmental behavior.  相似文献   

20.
Impact scoping is the process of identifying important issues of a proposal and focusing the environmental impact assessment (EIA) on the high-priority issues. Although impact scoping in one form or another has been inherent to EIA for some time, documentation of its development and discussion of refinements to impact scoping processes have not been forthcoming. This article traces the development of impact scoping through time and highlights the need for such processes in EIA. A focused environmental assessment (FEA) approach to impact scoping that is suitable for implementation in an EIA is presented here and advantages of its use are delineated. FEA is a three-staged process that encourages impact scoping through progressive steps including impact identification, assessment and management planning. FEA combines a suite of EIA methods including: issues matrices, impact hypotheses, valued ecosystem components, and stakeholder participation sessions to effectively integrate impact scoping with EIA.  相似文献   

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