Document Detail

Recent sedimentary history of anthropogenic impacts on the Culiacan River Estuary, northwestern Mexico: geochemical evidence from organic matter and nutrients.
MedLine Citation:
PMID:  12009134     Owner:  NLM     Status:  MEDLINE    
210Pb geochronology and sediment profiles of carbon, phosphorus and nitrogen were used to study time dependent changes in nutrients fluxes to Culiacan River Estuary. Results indicate that the release of urban sewage and agriculture wastes transported through Culiacan River has produced historically increased carbon, phosphorus and nitrogen fluxes to the study area. C:N:P elemental ratios showed that increments in the nutrients input begins simultaneously for C, N and P in 1948 with the clearing of the catchment for agriculture; although excess of nutrients input increased most importantly around the 1970s to roughly follow the rapidly growing population of Culiacan City. C/N ratios, delta13C and delta15N suggested that nutrient enrichment is mostly influenced by sewage delivered through Culiacan River.
A C Ruiz-Fernández; C Hillaire-Marcel; B Ghaleb; M Soto-Jiménez; F Páez-Osuna
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Environmental pollution (Barking, Essex : 1987)     Volume:  118     ISSN:  0269-7491     ISO Abbreviation:  Environ. Pollut.     Publication Date:  2002  
Date Detail:
Created Date:  2002-05-14     Completed Date:  2002-11-05     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8804476     Medline TA:  Environ Pollut     Country:  England    
Other Details:
Languages:  eng     Pagination:  365-77     Citation Subset:  IM    
Centre GEOTOP-UQAM-McGill, Université du Québec à Montréal, Canada.
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MeSH Terms
Carbon / analysis*
Environmental Monitoring
Geologic Sediments / chemistry*
Lead Radioisotopes / analysis
Nitrogen / analysis*
Phosphorus / analysis*
Retrospective Studies
Reg. No./Substance:
0/Lead Radioisotopes; 0/Sewage; 7440-44-0/Carbon; 7723-14-0/Phosphorus; 7727-37-9/Nitrogen

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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