Produção científica da área da Química no desenvolvimento da oceanografia no Brasil

Lacerda, Luiz Drude de; Marins, Rozane Valente

doi:10.1590/s0100-40422010000400045

Cited by 3 publications

(2 citation statements)

References 2 publications

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“…63,65,66 Houve estudos produzidos tanto em praias urbanas 60,62 quanto rurais, 57,67 assim como em ilhas. 68,69 Todos esses estudos foram reconhecidos como uma contribuição importante das áreas de química (principalmente da química analítica) 70 Hoje sabe-se que, seguindo as tendências globais, praticamente qualquer praia da extensa costa brasileira está em menor ou maior grau contaminada pela presença de plásticos. A poluição por plásticos em estuários do Brasil também é ubíqua, 56,71,72 tendo sido relatada em diversas situações, inclusive por meio da ingestão de plásticos por peixes de interesse comercial e na conservação de recursos pesqueiros.…”

Section: Plásticos E Seus Poluentes Associadosunclassified

Oceanografia e Química: unindo conhecimentos em prol dos oceanos e da sociedade

Hatje¹,

Costa²,

Cunha³

2013

Quím. Nova

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Recebido em 17/7/13; aceito em 2/9/13; publicado na web em 18/9/13 OCEANOGRAPHY AND CHEMISTRY: BRIDGING KNOWLEDGE IN FAVOR OF THE OCEANS AND SOCIETY. The marine environment is certainly one of the most complex systems to study, not only because of the challenges posed by the nature of the waters, but especially due to the interactions of physical, chemical and biological processes that control the cycles of the elements. Together with analytical chemists, oceanographers have been making a great effort in the advancement of knowledge of the distribution patterns of trace elements and processes that determine their biogeochemical cycles and influences on the climate of the planet. The international academic community is now in prime position to perform the first study on a global scale for observation of trace elements and their isotopes in the marine environment (GEOTRACES) and to evaluate the effects of major global changes associated with the influences of megacities distributed around the globe. This action can only be performed due to the development of highly sensitive detection methods and the use of clean sampling and handling techniques, together with a joint international program working toward the clear objective of expanding the frontiers of the biogeochemistry of the oceans and related topics, including climate change issues and ocean acidification associated with alterations in the carbon cycle. It is expected that the oceanographic data produced this coming decade will allow a better understanding of biogeochemical cycles, and especially the assessment of changes in trace elements and contaminants in the oceans due to anthropogenic influences, as well as its effects on ecosystems and climate. Computational models are to be constructed to simulate the conditions and processes of the modern oceans and to allow predictions. The environmental changes arising from human activity since the 18 th century (also called the Anthropocene) have made the Earth System even more complex. Anthropogenic activities have altered both terrestrial and marine ecosystems, and the legacy of these impacts in the oceans include: a) pollution of the marine environment by solid waste, including plastics; b) pollution by chemical and medical (including those for veterinary use) substances such as hormones, antibiotics, legal and illegal drugs, leading to possible endocrine disruption of marine organisms; and c) ocean acidification, the collateral effect of anthropogenic emissions of CO 2 into the atmosphere, irreversible in the human life time scale. Unfortunately, the anthropogenic alteration of the hydrosphere due to inputs of plastics, metal, hydrocarbons, contaminants of emerging concern and even with formerly "exotic" trace elements, such us rare earth elements is likely to accelerate in the near future. These emerging contaminants would likely soon present difficulties for studies in pristine environments. All this knowledge brings with it a great responsibility: helping to envisage viable adaptation and mitigation soluti...

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Section: Plásticos E Seus Poluentes Associadosunclassified

Oceanografia e Química: unindo conhecimentos em prol dos oceanos e da sociedade

Hatje¹,

Costa²,

Cunha³

2013

Quím. Nova

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“…3 In the last 10 years, the contribution of chemistry to the marine sciences in Brazil has been outstanding, with about 400 papers published in indexed periodicals, of which almost 80 in Química Nova and in the Journal of the Brazilian Chemical Society. 4 In spite of the increasing and significant participation in the knowledge generation, it is remarkable the virtual absence of chemists in the planning of efforts in Science and Technology in marine sciences in Brazil. For example, a broad effort for the graduation system expansion in marine science put in practice by the Brazilian Federal Agency for Support and Evaluation of Graduate Education (Marine Science Public Notice 2009) has approved 26 projects involving almost 30 institutions and about 30 million dollars.…”

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confidence: 99%