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631.
The mercury content has been determined in samples of fumarolic gases, phreatic waters, soil and vegetation collected at Vulcano, Aeolian Islands, Italy. Volcanic activity is demonstrated as a source of natural mercury pollution whose extent has been evaluated here by studying the contribution of different components of the surface environment. The possible influences for living organisms are examined. 相似文献
632.
在白银露天矿污染气象站五年的污染气象观测基础上,分析了采场粉尘浓度与污染源强度和气象因素之间的相关性,提出了粉尘污染预报的模式和方法,其准确率达到66.9%。并以粉尘污染预报模式为依据。提出了污染源控制管理模式。试验表明利用本模式对污染源实施控制管理具有实用意义和价值。 相似文献
633.
Rick Reibstein 《Journal of Cleaner Production》2011,19(5):498-504
The Massachusetts Toxics Use Reduction Act (TURA), one of the original pollution prevention laws, has faced repeated repeal attempts and budget cuts. Yet the Massachusetts toxics use data and other analyses have provided firm indications that the law has actually worked. Though the program has survived it is notable that an approach that both saves money and reduces pollution has been reduced and not expanded. This paper does not attempt to answer the question of why the strategies of TURA have not seen wider application, but offers four stories to illustrate what happens when they are properly applied. The experience of corporate officials who had to comply with TURA, related at a symposium on the occasion of the law’s 20th anniversary, shed light on how a strong pollution prevention law can benefit regulated companies as well as the environment and worker and public health, and provide suggestions, in addition to data and surveys, that TURA-like sets of governance tools should receive wider consideration. 相似文献
634.
安全生产应急预案桌面推演的设计与实施探讨 总被引:3,自引:1,他引:3
对实战演练和桌面推演进行分析与比较;阐述桌面推演的历史沿革与演化;提出应急预案桌面推演方案框架设计要点;尤其对推演方案中事故场景设计的主要关注点,如事故发生现实可能性,事故后果危害或灾难性,场景演化过程合理性、可信性,事故发展演变多样性,事故场景典型代表性和桌面推演可实现性等都提出了见解。给出桌面推演实例,并阐述桌面推演取得实效的基本条件和保障措施,对应急预案桌面推演在技术上进一步深入发展和完善的前景进行了探讨和展望。 相似文献
635.
本文简要介绍了中山市在国家环保总局“十五”环境规划期间做为第一批工业污染源全面达标试点城市,环境监测部门发挥出的重要职能和作用。对工业污染源全面达标验收工作做了全面而客观的总结和评估,为日后开展此项工作的兄弟单位提供了有益的经验和启示。 相似文献
636.
Leonard Champney 《Journal of the American Water Resources Association》1979,15(6):1602-1607
ABSTRACT: A general model of the policy implementation process is utilized to facilitate a discussion of the way Section 208 of PL 92-500 is being carried out on an areawide basis. A study of four “208 areas” in the “New York-Philadelphia corridor” highlights the operation of several variables used in the model. The varying political and socioeconomic conditions in geographic areas which have similar water quality problems are leading to the evolution of vastly different implementing structures, or institutional arrangements. The analysis suggests that these differences may have important implications for the success of the program in each of these areas. A major underlying theme is that such problems are characteristic of the 208 process nationwide and reflect general difficulties associated with managing water quality in a federal system. 相似文献
637.
The origin of faeces by means of biomarker detection 总被引:6,自引:0,他引:6
Bull ID Lockheart MJ Elhmmali MM Roberts DJ Evershed RP 《Environment international》2002,27(8):647-654
638.
Presently in Australia there are no mandatory drinking water standards. Here we argue that the risk associated with drinking
water in Australia is of a dimension discernible to warrant mandatory regulations. The catchments that supply the major metropolitan
areas of Sydney and Adelaide, and the groundwater for the city of Perth have been seriously compromised by the encroachment
of development and activities. Melbourne in the past has generally relied on a closed catchment reservoir system; however,
population growth in the near future will sequester the full online operation of additional reservoirs, which have multiple
land use catchments. In addition to the current landscape circumstances, the management of a water system in itself proposes
significant issues of risk. Two critical assumptions that are unique to a mass medium substance like water and dramatically
alter the appraisal of risk are: (1) very large numbers of people are potentially exposed, and (2) small changes in contaminant
levels may have adverse population outcomes. It is also known that water reticulation systems frequently suffer from contamination
problems caused solely by the distribution system, and optimal management of these facilities would best be served by statutory
protected transparency and dedicated water quality programs. In 1979, an Australian parliamentary committee stated that an
“uncontaminated water supply is” a “basic requirement for the obtainment of good health”; however, recent surveys of Australian
water systems show many are not meeting basic water quality criteria, and many communities are not receiving regular monitoring
or testing as required by government authorized Australian drinking water guidelines. Exacerbating this situation is the lack
of reporting and statutory endorsed standardized procedures to ensure information is properly and promptly recorded and that
data are centralized for maximum benefit. The evaluation of risk associated with drinking water in Australia is often hampered
by inadequate or incomplete data. Lastly, regional and rural water supplies face a vast array of contemporary problems and
experiences that include widespread usage of pesticides and agricultural chemicals. In recent years, the Darling River has
experienced the worst algal bloom known to man, and this river system not only supplies a number of regional and rural towns
with water, but eventually connects with the River Murray, which supplies the State of South Australia with approximately
50% of its water requirements. 相似文献
639.
640.
着重阐述了武汉市汽车排气污染现状及汽车污染物的产生 ,介绍了国内外控制汽车污染物排放的技术和措施 ,提出了武汉市汽车排气污染的发展趋势。 相似文献