Total peroxides and sulfate in rainwater in the Mexican eastern Pacific Ocean during the Climatic Experiment in the Americas Warm Water Pools

Total peroxides were analyzed in 26 rainwater samples collected on board of the R/V El Puma of the NationalAutonomous University of México (UNAM) during the Climatic Experiment in the Americas Warm WaterPools (ECAC-1) over the eastern Pacific Ocean between 12 and 14° N, and between 98 and 100° W, fr...

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Detalhes bibliográficos
Autores: A. Báez, H. Padilla, M. C. Torres, R. Belmont, R. García
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2007
País:México
Recursos:Universidad Nacional Autónoma de México
Repositorio:Redalyc-UNAM
OAI Identifier:oai:redalyc.org:56520305
Acesso em linha:https://www.redalyc.org/articulo.oa?id=56520305
Access Level:acceso abierto
Palavra-chave:Ciencias de la Tierra
sulfates
rainwater
Total peroxides
Descrição
Resumo:Total peroxides were analyzed in 26 rainwater samples collected on board of the R/V El Puma of the NationalAutonomous University of México (UNAM) during the Climatic Experiment in the Americas Warm WaterPools (ECAC-1) over the eastern Pacific Ocean between 12 and 14° N, and between 98 and 100° W, fromMay 23 to 25, 2001. The volume weighted mean concentration of total peroxides was 13.1 ± 1.94 &#956;M. Also,sulfate ion was analyzed. The volume weighted mean concentrations for sulfate and sea-salt sulfate were 0.76± 0.59 and 0.04 ± 0.06 mg L-1, respectively. Excess sulfate (non-sea-salt sulfate) represented 95% of the totalsulfate. The total peroxides concentration in rainwater correlated significantly with total sulfate and excess sulfate(0.560 and 0.586 at a p < 0.05, respectively) possibly because most of the excess sulfate and hydrogen peroxide,observed in the Mexican eastern Pacific Ocean, could have been produced from the oxidation of biogenic Total peroxides were analyzed in 26 rainwater samples collected on board of the R/V El Puma of the NationalAutonomous University of México (UNAM) during the Climatic Experiment in the Americas Warm WaterPools (ECAC-1) over the eastern Pacific Ocean between 12 and 14° N, and between 98 and 100° W, fromMay 23 to 25, 2001. The volume weighted mean concentration of total peroxides was 13.1 ± 1.94 &#956;M. Also,sulfate ion was analyzed. The volume weighted mean concentrations for sulfate and sea-salt sulfate were 0.76± 0.59 and 0.04 ± 0.06 mg L-1, respectively. Excess sulfate (non-sea-salt sulfate) represented 95% of the totalsulfate. The total peroxides concentration in rainwater correlated significantly with total sulfate and excess sulfate(0.560 and 0.586 at a p < 0.05, respectively) possibly because most of the excess sulfate and hydrogen peroxide,observed in the Mexican eastern Pacific Ocean, could have been produced from the oxidation of biogenicTotal peroxides were analyzed in 26 rainwater samples collected on board of the R/V El Puma of the NationalAutonomous University of México (UNAM) during the Climatic Experiment in the Americas Warm WaterPools (ECAC-1) over the eastern Pacific Ocean between 12 and 14° N, and between 98 and 100° W, fromMay 23 to 25, 2001. The volume weighted mean concentration of total peroxides was 13.1 ± 1.94 &#956;M. Also,sulfate ion was analyzed. The volume weighted mean concentrations for sulfate and sea-salt sulfate were 0.76± 0.59 and 0.04 ± 0.06 mg L-1, respectively. Excess sulfate (non-sea-salt sulfate) represented 95% of the totalsulfate. The total peroxides concentration in rainwater correlated significantly with total sulfate and excess sulfate(0.560 and 0.586 at a p < 0.05, respectively) possibly because most of the excess sulfate and hydrogen peroxide,observed in the Mexican eastern Pacific Ocean, could have been produced from the oxidation of biogenic sulfur compounds. The non-significant correlation between sea-sal