排序方式: 共有26条查询结果,搜索用时 62 毫秒
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Cherif Sonia Djelal Hayet Firmin Stephane Bonnet Pierre Frezet Lawrence Kane Abdoulaye Amine Assadi Aymen Trari Mohamed Yazid Hynda 《Environmental science and pollution research international》2022,29(44):66640-66658
Environmental Science and Pollution Research - This study deals with the toxicity of the treated solutions of two types of dyes, namely, the anthraquinonic Reactive Bleu 19 dye (RB19) and the... 相似文献
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Developing environmental quality standards for various pesticides and priority pollutants for French freshwaters 总被引:2,自引:0,他引:2
Babut M Corinne B Marc B Patrick F Jeanne G Geneviève G 《Journal of environmental management》2003,69(2):139-147
The French Ministry of the Environment and Water Agencies have derived environmental quality standards following the existing French framework called SEQ-Eau, for 28 pesticides and seven priority substances listed in the Water Framework Directive. Like other existing frameworks, SEQ-Eau relies upon the use of standard toxicity test results and assessment factors. This approach made it possible to derive the desired quality standards, but due to the lack of chronic toxicity data many of the standards are only provisional. In addition, emerging issues such as endocrine disruption should be taken into account in this framework. Depending on the available data, more flexible derivation approaches, such as the statistical distribution of NOECs, are recommended for future versions of SEQ-Eau. A comparison is made using SEQ-Eau and the methodology currently being discussed in Europe to develop environmental quality standards, showing that the European approach is more conservative. Conversely, the proposed approach under the Water Framework Directive does not cover the entire range of required quality classes. 相似文献
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Air pollutant emissions from rice straw open field burning in India, Thailand and the Philippines 总被引:4,自引:0,他引:4
Butchaiah Gadde Sébastien Bonnet Christoph Menke Savitri Garivait 《Environmental pollution (Barking, Essex : 1987)》2009,157(5):1554-1558
Rice is a widely grown crop in Asia. China (30%) and India (21%) contribute to about half of the world's total rice production. In this study, three major rice-producing countries in Asia are considered, India, Thailand and the Philippines (the later two contributing 4% and 2% of the world's rice production). Rice straw is one of the main field based residues produced along with this commodity and its applications vary widely in the region. Although rice production practises vary from one country to another, open burning of straw is a common practice in these countries.In this study, an approach was followed aiming at (a) determining the quantity of rice straw being subject to open field burning in those countries, (b) congregating pollutant specific emissions factors for rice straw burning, and (c) quantifying the resulting air pollutant emissions. Uncertainties in the results obtained as compared to a global approach are also discussed. 相似文献
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Lobo Maria Tereza Morais Pereira Souza Scalize Paulo Sérgio Kraus Cleber Nunes da Silva Weliton José Garnier Jérémie da Motta Marques David Bonnet Marie-Paule de Souza Nogueira Ina 《Environmental science and pollution research international》2020,27(10):10642-10657
Environmental Science and Pollution Research - Canadian Water Quality Index (CWQI) provides protection for freshwater life promoting healthy ecosystems and safeguarding human health. Biological... 相似文献
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Xavier Bonnet Don Bradshaw Richard Shine David Pearson 《Behavioral ecology and sociobiology》1999,46(4):267-272
Large (to >1 m), diurnally active tiger snakes (Notechis scutatus) are abundant on Carnac Island, near the coast of Western Australia. Our behavioural and mark-recapture studies provide the
first ecological data on this population, and reveal a surprising phenomenon. Many adult tiger snakes have had their eyes
destroyed, apparently during nest defence, by silver gulls (Larus novaehollandiae). This loss of vision did not reduce the snakes' body condition (mass relative to length), or their rates of growth or survival
(measured over a 12-month period). Blind male snakes trail-followed females, and mated successfully. Thus, destruction of
a major sensory modality had no detectable effect on these predators. This result is strongly counter-intuitive, but mirrors
an earlier report of congenital blindness (without ill-effects) in American viperid snakes. Similarities between the two systems
(island populations, highly venomous snakes, reliance on sessile prey) clarify the circumstances under which the loss of vision
does not reduce an organism's viability. These natural experiments support Gans' hypothesis of “momentarily excessive construction”
in that the snakes possess a complex organ system that they do not actually require for successful feeding, survival or reproduction.
Received: 30 November 1998 / Received in revised form: 24 April 1999 / Accepted: 9 May 1999 相似文献
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Samples collected in the Irminger Basin during the Marine Productivity Programme (2001–2004) were used to study Calanus finmarchicus vertical distribution and histological changes of its mid-gut epithelium in relation to overwintering strategy. Previous
studies have shown that cell composition of the glandular part of the mid-gut, size and abundance of B cells responsible for
digestive enzyme secretion and thickness of the epithelium could be good indicators of individual physiological state. We
used C. finmarchicus abundance, vertical distribution, lipid sac volume and mid-gut epithelium histological composition of individuals collected
in contrasting hydrographic areas of the Irminger Basin and sampled at different seasons to understand C. finmarchicus life cycle in the Irminger Basin. Lipid sac volumes were significantly different between the seasons but neither between
the hydographic areas nor the various depths of the water column. B cells concentrations and thickness of the epithelium have
allowed us to distinguish a non-diapausing surface population (350 m) in the East Greenland Current while individuals at depth
(1,250 m) were overwintering. This result is correlated by a bimodal vertical distribution of the CV in this biozone. In the
other hydrographic areas, all CV were dormant, although surface individuals were not analysed in the Southern Irminger Current. 相似文献