دورية أكاديمية
Assessment of physical-chemical characteristics of water and sediments from a Brazilian tropical estuary: status and environmental implications.
| العنوان: | Assessment of physical-chemical characteristics of water and sediments from a Brazilian tropical estuary: status and environmental implications. |
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| المؤلفون: | de G Pereira M; Departamento de Ciências Exatas e da Terra, Universidade do Estado da Bahia, Rua Silveira Martins 2555, Cabula, 41150-000 Salvador, BA, Brazil. madson-pereira@ig.com.br, de Andrade MV, Ornelas VC, de Almeida RA, Fontes MP, Ribeiro JN, Ribeiro AV, dos Santos AV, Souza AN, de Araújo CB, de Araújo AC, Onofre CR, das G A Korn M |
| المصدر: | TheScientificWorldJournal [ScientificWorldJournal] 2012; Vol. 2012, pp. 676173. Date of Electronic Publication: 2012 Mar 12. |
| نوع المنشور: | Journal Article; Research Support, Non-U.S. Gov't |
| اللغة: | English |
| بيانات الدورية: | Publisher: Hindawi Publishing Corporation Country of Publication: United States NLM ID: 101131163 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1537-744X (Electronic) Linking ISSN: 1537744X NLM ISO Abbreviation: ScientificWorldJournal Subsets: MEDLINE |
| أسماء مطبوعة: | Publication: New York : Hindawi Publishing Corporation Original Publication: Boynton Beach, FL : Scientific World, Inc., c2001- |
| مواضيع طبية MeSH: | Tropical Climate*, Geologic Sediments/*chemistry , Water/*chemistry, Brazil ; Microscopy, Electron ; Spectrophotometry, Atomic ; Thermogravimetry |
| مستخلص: | The environmental quality of the Jacuípe River's estuary (very important in northeastern Brazil) was assessed during 2007 and 2008. In water, concentrations (mg L⁻¹) of NO₂⁻ (<0.004 to 0.016), NO₃⁻ (0.01 to 0.33), soluble PO₄³⁻ (<0.02 to 0.22), dissolved oxygen (3.9 to 9.6), total contents (mg L⁻¹) of Cd (<0.001), Cu (<0.01), Pb (<0.01), and Zn (<0.1), pH (5.60 to 8.00), and electrical conductivity (0.12 to 48.60 mS cm⁻¹) agreed with environmental standards. In sediments, clay and total organic matter (%, m/m) varied, respectively, from 8.8 to 12.0 and from 1.1 to 8.8, while infrared, thermogravimetric profile, electronic micrograph, as well as X-Ray analyses showed desirable adsorptive characteristics. However, maximum exchangeable levels (mg kg⁻¹) of Cd (1.3), Cu (44.6), Pb (35.7), and Zn (43.7) and their respective maximum pseudototal concentrations (mg kg⁻¹): 19.4, 95.1, 68.2, and 30.3 were below the recommended limits. In this sense, it was possible to demonstrate good environmental preservation even with the growing number of industries and touristic activities in the evaluated estuarine area. |
| References: | Environ Monit Assess. 2002 Oct;79(1):75-100. (PMID: 12381024) Environ Int. 2004 Oct;30(8):1089-98. (PMID: 15337354) Environ Sci Technol. 1994 Mar 1;28(3):104A. (PMID: 22668456) |
| المشرفين على المادة: | 059QF0KO0R (Water) |
| تواريخ الأحداث: | Date Created: 20120411 Date Completed: 20120713 Latest Revision: 20240324 |
| رمز التحديث: | 20240324 |
| مُعرف محوري في PubMed: | PMC3317759 |
| DOI: | 10.1100/2012/676173 |
| PMID: | 22489197 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1537-744X |
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| DOI: | 10.1100/2012/676173 |