Associations between liver lesions in winter flounder (Pleuronectes americanus) and sediment chemical contaminants from north-east United States estuaries     

Chang  S.; Zdanowicz  V. S.; Murchelano  R. A. 《ICES Journal of Marine Science》1998,55(5):954-969

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土壤水环境中污染物运移双点吸附解吸动力学模型     

赵颖  梁冰  薛强  刘磊  王永波 《岩土力学》2007,28(12):2574-2578

在考虑对流弥散、平衡/非平衡双点吸附解吸、微生物降解等情况下,建立了土壤环境中有机污染物迁移转化的动力学模型,并给出了有限差分解。在此模型的基础上,详细讨论了有机污染物在土壤中的分布规律,并对一阶吸附解吸速率常数 和平衡吸附点位所占总点位的比例 进行了灵敏度分析。分析研究表明：参数 对于土壤中有机污染物浓度分布有着重要的影响,其影响程度又与非平衡吸附点位所占总点位的比例（1- ）有关;污染后期土壤吸附相的存在,也会起到增加土壤水溶质浓度的作用,且 越大,这种作用越明显。  相似文献   

加拿大一美国圣劳伦斯河：需要对大河生态系统水平上的了解     

Warwick F. Vincent  Julian J. Dodson 《湖泊科学》1998,10(S1):31-34

Throughout the course of civilization, large rivers have played a major role in transport, water supply and human waste disposal. The pressure on these resources has greatly intensified over this century, but our ecological understanding of this most important class of freshwater environments remains poorly developed.  相似文献   

Synthesis,Characterization, and Application of Fe–Ni Bimetallic Nanoparticles for the Reductive Degradation of Nimesulide     

《洁净——土壤、空气、水》2017,45(1)

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Occurrence of Pharmaceutical Products,Female Sex Hormones and Caffeine in a Subtropical Region in Brazil     

《洁净——土壤、空气、水》2017,45(9)

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Ethnic conflict as a risk amplifier for resurgent P. vivax malaria in temperate zones: A case study from the Caucasus region     

《Global Environmental Change》2022

One of the most protracted post-Soviet conflicts of the 1990s was a territorial dispute between Armenia and Azerbaijan over the contested Karabakh region. Years of ethnic violence led to the displacement of nearly a million refugees, as well as a public health crisis that included epidemics of malaria, diphtheria and other preventable diseases. Malaria is not usually considered a health risk in temperate climates, but seasonal epidemics were widespread throughout the Caucasus in the early decades of the twentieth century. This paper combines qualitative historical research with geospatial analysis to explore how endemic malaria was controlled during the Soviet era, and how ethnic conflict reconfigured local ecologies to facilitate the re-emergence of P. vivax after the Soviet collapse in the 1990s. This research reveals that ethnic conflicts have specific qualities that increase risks of infectious and vector borne disease outbreaks, even in places that have successfully achieved a modern health and mortality profile. The risk amplifiers of ethnic conflicts include 1) the creation of contested spaces controlled by separatists that are outside of any national public health surveillance system; 2) mass population movements and refugee outflows due to ethnic violence; and 3) changes in land use that expand potential mosquito breeding sites throughout the conflict zone. Continued hostilities between Armenia and Azerbaijan, combined with the repopulation of key vector species (specifically An. sacharovi) lead us to conclude that populations in the Caucasus remain vulnerable to resurgent outbreaks of ethno-nationalist violence as well as the return of seasonal malaria, even after decades of successful control.  相似文献