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生物传感器在环境监测领域的应用 总被引:2,自引:0,他引:2
本文简要介绍了生物传感器的原理、特点及分类,着重介绍生物传感器在水、大气、生物等环境监测领域的应用,展望了生物传感器在环保领域的发展方向及前景。 相似文献
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监测与管理是环保工作中最基本、最重要的两个方面,本文较详细地探讨了县级市环境监测和环境管理的定义、范围及内容,并从依靠与服务的根本关系上强调;只有两者有机结合、互相支持才能搞好新形势下的环保工作。 相似文献
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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
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本文从环境监测质量保证的角度出发,提出了环境监测报告的审核应注意其完整性,准确性、相关性及文字说明部分等方面的问题。 相似文献
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通过分析目前环境监测站监测档案建立和运用中存在的问题,探讨了档案的建立方法及在环境监测和环境管理中的运用。 相似文献
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本文根据县级环境监测站的实际情况,从外部和内部两方面因素出发,讨论了开展质量保证工作的具体作法。 相似文献
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The majority of environmental effects monitoring (EEM) frameworks that have been proposed compare selected indicator variables
as a means of assessing whether significant changes in stressed ecosystems have occurred. Most are deterministic in nature
and do not appropriately account for the natural variability and dynamics within the systems being comapred. This suggests
that the comparative procedures should be statistically based and immediately raises the issue of whether the selected comparative
procedures are to be used as decision-making tools or conclusive procedures. Conclusive procedures require a significant body
of evidence before rejecting the postulated null hypothesis. The costs and time involved in environmental data collection
accordingly bias action toward the maintenance of a status quo approach to environmental management. if, however, EEM is treated
as a decision-making procedure, risk functions that include consideration of type I and II statistical error may be developed
and combined with costs to select a minimum expected loss strategy for environemental management. Examples of the interpretative
difficulties and conclusion reversal phenomena caused when EEM is used as a conclusive procedure are presented. In addition,
risk functions appropriate for environmental management within an EEM context are constructed and applied. Only when such
tools are fully developed and applied can EEM expect to have significant impacts on minimizing environmental degradation. 相似文献
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James R. Karr 《Environmental management》1987,11(2):249-256
Direct biological monitoring is essential for effective assessment efforts. Past approaches to biomonitoring are too simplistic (for example, toxicity testing, indicator species) or conceptually invalid (diversity indexes). Assessments that use ecological guilds use ecological principles in a more integrative fashion. The best long-term approach is development of suites of metrics, like those used in the index of biotic integrity (IBI), to reflect individual, population, community, and ecosystem attributes in an integrative framework. Efforts to use the conceptual content of IBI in a wider diversity of habitats should be encouraged and followed up with effective control actions. 相似文献
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环境监测是环境管理的基础性工作,随着环境管理工作日趋法制化、规范化和定量化,开发环境监测业务处理系统软件十分必要。本文在分析环监业务的现状和要求的基础上,结合计算机技术、OA技术,提出了一种环监业务自动化办公系统的设计思想,并分析了其功能需要。 相似文献
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我国环境问题日趋严重,环境污染和生态破坏已成为社会发展的制约因素。然而,有些企业忽视环境保护工作,取消或合并环境监测站,削弱环境监测力量。针对这种情况,从行业环境监测站的任务、作用和不可取代性方面阐述了强化行业环境监测站建设的必要性。 相似文献
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Advances in telemetry have facilitated the continuous monitoring of fish position and movement. At present, there are few examples where this approach has been applied to environmental monitoring or assessment. Here we 1) present a case study that used a fixed antenna array and continuously scanning coded receiving system to monitor the movement of radio-tagged smallmouth bass (Micropterus dolomieu) in a thermal discharge canal on Lake Erie during the winter of 1998/1999, and 2) evaluate the use of fixed telemetry arrays for environmental monitoring. Although the number of radiotagged bass in the canal decreased gradually over time, fish spent the majority of the winter in the canal. When in the canal, bass selected areas upstream of the tempering pumps where water was the warmest. This region was also high in habitat complexity, had adequate velocity refuges, and abundant forage. Despite residing in the thermal effluent throughout the winter, none of the fish monitored were observed to participate in reproductive activities in the canal in the Spring. Interestingly, during a biofouling chlorination pulse in May, 50% of radiotagged fish still residing in the canal left and did not return during the monitoring period. Utility infrastructure accessible to fish, including thermal effluents, should be considered as fish habitat and managed accordingly to minimize mortality and sublethal effects on resident and transient fish. Fixed telemetry arrays that permit the continuous monitoring of fish behavior as described in this paper are widely applicable to many issues in environmental management, monitoring, and conservation. 相似文献
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浅谈遥感技术在大气监测中的应用 总被引:2,自引:0,他引:2
碳的氧化物、硫的氧化物、氮的氧化物和臭氧等是人类在生产活动和社会活动产生中的主要的环境污染物,它们威胁着人类的生存环境和地球上的生态平衡。因此,对它们进行实时监测和综合治理显得非常重要。文章介绍了遥感(RS)技术,重点介绍遥感技术在大气环境监测中的应用。 相似文献
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R. W. P. M. Laane J. Van Der Meer A. De Vries A. Van Der Giessen 《Environmental management》1990,14(2):221-227
During the winter period an inverse linear relation is found between the concentration of dissolved nutrients (phosphorus
and nitrogen) and salinity in the Dutch coastal zone. This indicates a conservative behavior of these compounds from the river,
through the estuary to the sea. During summer this relation is much more scattered because of biological processes. The physical
and statistical properties of the relationship between salinity and the concentration of dissolved inorganic phosphorus and
nitrogen are used to calculate when, where, and how many samples have to be taken in order to monitor a reduction of a compound
accurately. It appeared that at any given salinity in the estuary and in the sea, the winter period is the most suitable season
to detect a reduction of a given dissolved compound. The higher the salinity in the estuary, the more samples are required
to prove the reduction significantly. A reduction of only 10% cannot even be demonstrated by field measurements during summer
at salinities above 25. It is concluded that one cruise from the river to the sea, covering the salinities from 0 to 35 during
the winter period, aimed at establishing the relationship between the concentration and salinity by taking samples at a salinity
interval of for instance 1%, is sufficient to monitor a wide-ranging reduction of 10%–50% in both the fresh water and marine
water. This program must be combined with a sampling at a salinity of 0, directed to determine the riverine temporal variability. 相似文献
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本文阐述了省级环境监测中心站在整个国家环境监测网络中的重要地位和作用。回顾了我省环境监测中心站这些年来的工作,当前存在的困难和问题,以及如何对我省环境监测中心站进行体制改革的思考。 相似文献