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The role of chloramine species in NDMA formation
(2018-09)
N-nitrosodimethylamine (NDMA), a probable human carcinogen disinfection by-product, has been
detected in chloraminated drinking water systems. Understanding its formation over time is important
to control NDMA levels in ...
Influence of rice field agrochemicals on the ecological status of a tropical stream
(2016-01-15)
Many tropical countries contain a high density of protected ecosystems, and these may often be bordered by intensive agricultural systems. We investigated the chemical and ecological status of a stream connecting an area ...
Parámetros físico-químicos en aguas costeras de la Isla del Coco, Costa Rica (2001-2007)
Physico-chemical parameters in coastal waters around Isla del Coco, Costa Rica (2001-2007)
(2008-11-17)
Four cruises to Isla del Coco (Cocos Island), Costa Rica, were carried out in order to gather oceanographic data
related to surface temperature, salinity, dissolved oxygen concentration, Secchi disk depth, nutrient ...
Aspectos prácticos de la validación e incertidumbre en mediciones químicas
(Buenos Aires, Argentina, 2009)
En este libro se abordan dos temas relacionados con uno de
los más importantes aspectos en lo relativo a la calidad de la
información generada por un laboratorio de análisis químico: la
validación de los métodos utilizados, ...
Bioavailability of Xenobiotics in the Soil Environment
(2010)
When synthetic, xenobiotic compounds such as agrochemicals and industrial chemicals are utilized, they eventually reach the soil environment where they are subject to degradation, leaching, volatilization, sorption, and ...
Análisis de residuos de plomo en repollo de Costa Rica
(1984)
Lead residues analysis in cabbage. Cabbage and soil samples from the main cabbage growing areas of Costa Rica were analyzed for lead residues. Lead residues result from the use of lead arseniate as an insecticide and ...
Naproxen degradation test to monitor Trametes versicolor activity in solid-state bioremediation processes
(2010-07-15)
The white-rot fungus Trametes versicolor has been studied as a potential agent for the removal of envi ronmental pollutants. For long-time solid-phase bioremediation systems a test is required to monitor the
metabolic ...
El Uso de Plaguicidas en América Latina: Tendencias e implicaciones ambientales (Memoria Encargada)
Pesticide Use in Latin America: Trends and Environmental Implications
(1988)
The current demand for pesticides in Latin America exceeds US $ 2000 million in value. Up to 1990, consumption is expected to rise by 7 to 12%. The use of pesticides has been fully accepted in Lati America as a readily ...
Removal of both N-nitrosodimethylamine and trihalomethanes precursors in a single treatment using ion exchange resins
(2017-11-01)
Drinking water utilities are relying more than ever on water sources impacted by wastewater effluents. Disinfection/oxidation of these waters during water treatment may lead to the formation of several disinfection ...
Metals in coastal mollusks of Costa Rica
Metales en moluscos costeros de Costa Rica
(2015-12)
The input of contaminants to coastal ecosystems is a global problem on the rise. Data on metal pollution from tropical sites is often lacking and pilot surveys are urgently needed to provide a general framework to estimate ...