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NADIA GAMBOA

Pontificia Universidad Catolica del Peru, Departamento de ciencias. Sección Química, Faculty Member

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Nadia Gamboa is Full Professor in Pontificia Universidad Católica del Perú and lectures on analytical and environmental chemistry mainly. Her research interests are focussed on environmental monitoring, water resources, residues and biomass energy. She leads GRIDES-PUCP, an interdisciplinary research group that gathers engineers, geographers, business administrators as well as graduate and undergraduate students, looking for sustainability withj social responsibility . Her group hosts the students for performing their thesis projects.

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Estella Weiss-Krejci

Austrian Academy of Sciences

Fahmi Muhammad Ridwan

Universiti Malaysia Perlis (UniMAP)

Muhammad Sonny Abfertiawan

Institut Teknologi Bandung

Viacheslav Kuleshov

Stockholm University

Maria Luisa Fernandez-Marcos

University of Santiago de Compostela

Bogor Agricultural University, Indonesia

Mahendra Varman

University of Malaya, Malaysia

Dr. Majid Hussain

University of Haripur

University of Tuzla

Joseph M. Smoak

University of South Florida

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Papers by NADIA GAMBOA

El empleo de la derivada en la espectroscopía ultravioleta-visible

Desde fines de 1930 hasta la actualidad, los espectrofotómetros han progresado desde simples colo... more Desde fines de 1930 hasta la actualidad, los espectrofotómetros han progresado desde simples colorímetros hasta equipos computarizados con brazos robots que colocan automáticamente las muestras en ausencia temporal de un operador. Grandes pasos se han dado desde la aparición del primer equipo comercial en 1939. Estos avances no son sólo tecnológicos sino de tratamiento de datos. Una de las herramientas matemáticas empleadas en espectroscopía ultravioleta-visible (UV-Vis), fotometría de llama, espectroscopía infrarroja y de fluorescencia, es la derivación. El fundamento teórico de esta técnica fue expuesto en 1953, pero fue puesta en práctica dos décadas después. En los párrafos siguientes no se explicará el principio de la espectroscopía UV-Vis, ya que existen numerosos textos que lo hacen; en cambio, se comentará el empleo de la derivación en la misma.

Los ácidos difosfónicos: usos y aplicaciones

Los derivados más estudiados de este ácido son: ácido diclorometilcndifosfónico: Cl 2 C(P0 3 H 2)... more

Breve Revision Sobre Nitrosaminas y Aminas Nitrosables en La Atmosfera

Boletín de la Sociedad Química del Perú, 1995

DDT, a historical review

DDT is closely linked to the twentieth century. Its production, use and marketing are now banned... more

El cadmio, ¿su presencia nos alerta de la contaminación antropogénica?

DOAJ (DOAJ: Directory of Open Access Journals), Nov 1, 2019

Miguel Ángel Chong Cáceres

DOAJ (DOAJ: Directory of Open Access Journals), Jul 1, 2021

Contaminación de suelos dedicados al cultivo de papa por pesticidas

DOAJ (DOAJ: Directory of Open Access Journals), Apr 1, 1997

Síntesis de compuestos organofosforados vía reacción de Arbusow

DOAJ (DOAJ: Directory of Open Access Journals), Apr 1, 1990

¿Qué es la contaminación atmosférica?

DOAJ (DOAJ: Directory of Open Access Journals), Apr 1, 1994

Evaluación regional de sustancias tóxicas persistentes

DOAJ (DOAJ: Directory of Open Access Journals), Mar 1, 2001

un proyecto que servirá para dar las bases del estado de conocimiento de sustancias tóxicas persi... more

Escenarios de emisión de gases de efecto invernadero

DOAJ (DOAJ: Directory of Open Access Journals), Oct 1, 1998

RESUMEN El efecto invernadero es un fenómeno natural. Más aún, existe vida en la Tierra debido a ... more RESUMEN El efecto invernadero es un fenómeno natural. Más aún, existe vida en la Tierra debido a la capacidad de absorber energía de los gases que ocasionan este efecto. La actividad industrial ha incrementado la concentración de estos compuestos en la atmósfera y el hombre es responsable del evidente cambio climático. Para predecir el futuro del planeta se supone seis escenarios de emisión de gases de efecto invernadero. Estas hipótesis ayudan a una mejor comprensión de este problema global.

Perfil Nacional para Evaluar la Infraestructura Nacional para la Gestión de Sustancias Químicas: resumen ejecutivo

DOAJ (DOAJ: Directory of Open Access Journals), May 1, 2008

Este documento fue elaborado por el Proyecto Plan Nacional de Implementacion del Convenio de Esto... more

DDT, una revisión histórica

DOAJ (DOAJ: Directory of Open Access Journals), Nov 1, 2014

Cadmium, does its presence warn us of anthropogenic pollution?

Hazardous wastes: sources, pathways, receptors / Richards J. Watts. USA: John Wiley & Sons, 1997. 764 p

DOAJ (DOAJ: Directory of Open Access Journals), Nov 1, 1999

Educacion Superior en America Latina: Reflexiones y perspectivas en química

Química: 25 años de realizaciones 1967-1992

Salinization in Peruvian North Coast Soils: Case Study in San Pedro de Lloc

Saline and Alkaline Soils in Latin America, 2020

Soils in San Pedro de Lloc have been used for agriculture since pre-Columbian times. Rice crops a... more Soils in San Pedro de Lloc have been used for agriculture since pre-Columbian times. Rice crops are still currently irrigated by flooding using water from the Jequetepeque River. Therefore, soil degradation by salinization is a permanent threat to soil fertility and production. This chapter presents the results of studies carried out in the 1960s, 70s, and 80s, as well as recent works on surface water, underground water, and soil quality monitoring. Physicochemical parameters, such as electrical conductivity, pH, total dissolved solids, hardness, chemical oxygen demand, as well as nitrate, sulfate, phosphate, and chloride concentrations were measured in both surface water and underground water. Organic matter, texture class, and SAR were additionally measured in the soil samples. Electrical conductivity was spatially represented for easy comparison. The isopleth curves of the water table and a map showing the expansion of the agricultural area are included. It is concluded that the increase in the volume of water used for irrigation after the construction of the Gallito Ciego dam has raised the water table and soil salinization has been stimulated. This has led to the abandonment of cultivation fields and groundwater wells between 2003 and 2019 due to intense salinization.

Is mercury from small-scale gold mining prevalent in the southeastern Peruvian Amazon?

Environmental Pollution, 2016

There is an ongoing debate on the fate of mercury (Hg) in areas affected by artisanal and small-s... more There is an ongoing debate on the fate of mercury (Hg) in areas affected by artisanal and small-scale gold mining (ASGM). Over the last 30 years, ASGM has released 69 tons of Hg into the southeastern Peruvian Amazon. To investigate the role of suspended matter and hydrological factors on the fate of ASGM-Hg, we analysed riverbank sediments and suspended matter along the partially ASGM-affected Malinowski-Tambopata river system and examined Hg accumulation in fish. In addition, local impacts of atmospheric Hg emissions on aquatic systems were assessed by analysing a sediment core from an oxbow lake. Hg concentrations in riverbank sediments are lower (20-53 ng g(-1)) than in suspended matter (∼400-4000 ng g(-1)) due to differences in particle size. Elevated Hg concentrations in suspended matter from ASGM-affected river sections (∼1400 vs. ∼30-120 ng L(-1) in unaffected sections) are mainly driven by the increased amount of suspended matter rather than increased Hg concentrations in the suspended matter. The oxbow lake sediment record shows low Hg concentrations (64-86 ng g(-1)) without evidence of any ASGM-related increase in atmospheric Hg input. Hg flux variations are mostly an effect of variations in sediment accumulation rates. Moreover, only 5% of the analysed fish (only piscivores) exceed WHO recommendations for human consumption (500 ng g(-1)). Our findings show that ASGM-affected river sections in the Malinowski-Tambopata system do not exhibit increased Hg accumulation, indicating that the released Hg is either retained at the spill site or transported to areas farther away from the ASGM areas. We suspect that the fate of ASGM-Hg in such tropical rivers is mainly linked to transport associated with the suspended matter, especially during high water situations. We assume that our findings are typical for ASGM-affected areas in tropical regions and could explain why aquatic systems in such ASGM regions often show comparatively modest enrichment in Hg levels.

Degradación fotocatalítica de detergentes en efluentes domésticos

Esta obra ha sido publicada bajo la licencia Creative Commons Reconocimiento-No comercial-Compart... more

El empleo de la derivada en la espectroscopía ultravioleta-visible

Desde fines de 1930 hasta la actualidad, los espectrofotómetros han progresado desde simples colo... more Desde fines de 1930 hasta la actualidad, los espectrofotómetros han progresado desde simples colorímetros hasta equipos computarizados con brazos robots que colocan automáticamente las muestras en ausencia temporal de un operador. Grandes pasos se han dado desde la aparición del primer equipo comercial en 1939. Estos avances no son sólo tecnológicos sino de tratamiento de datos. Una de las herramientas matemáticas empleadas en espectroscopía ultravioleta-visible (UV-Vis), fotometría de llama, espectroscopía infrarroja y de fluorescencia, es la derivación. El fundamento teórico de esta técnica fue expuesto en 1953, pero fue puesta en práctica dos décadas después. En los párrafos siguientes no se explicará el principio de la espectroscopía UV-Vis, ya que existen numerosos textos que lo hacen; en cambio, se comentará el empleo de la derivación en la misma.

Los ácidos difosfónicos: usos y aplicaciones

Los derivados más estudiados de este ácido son: ácido diclorometilcndifosfónico: Cl 2 C(P0 3 H 2)... more

Breve Revision Sobre Nitrosaminas y Aminas Nitrosables en La Atmosfera

Boletín de la Sociedad Química del Perú, 1995

DDT, a historical review

DDT is closely linked to the twentieth century. Its production, use and marketing are now banned... more

El cadmio, ¿su presencia nos alerta de la contaminación antropogénica?

DOAJ (DOAJ: Directory of Open Access Journals), Nov 1, 2019

Miguel Ángel Chong Cáceres

DOAJ (DOAJ: Directory of Open Access Journals), Jul 1, 2021

Contaminación de suelos dedicados al cultivo de papa por pesticidas

DOAJ (DOAJ: Directory of Open Access Journals), Apr 1, 1997

Síntesis de compuestos organofosforados vía reacción de Arbusow

DOAJ (DOAJ: Directory of Open Access Journals), Apr 1, 1990

¿Qué es la contaminación atmosférica?

DOAJ (DOAJ: Directory of Open Access Journals), Apr 1, 1994

Evaluación regional de sustancias tóxicas persistentes

DOAJ (DOAJ: Directory of Open Access Journals), Mar 1, 2001

un proyecto que servirá para dar las bases del estado de conocimiento de sustancias tóxicas persi... more

Escenarios de emisión de gases de efecto invernadero

DOAJ (DOAJ: Directory of Open Access Journals), Oct 1, 1998

RESUMEN El efecto invernadero es un fenómeno natural. Más aún, existe vida en la Tierra debido a ... more RESUMEN El efecto invernadero es un fenómeno natural. Más aún, existe vida en la Tierra debido a la capacidad de absorber energía de los gases que ocasionan este efecto. La actividad industrial ha incrementado la concentración de estos compuestos en la atmósfera y el hombre es responsable del evidente cambio climático. Para predecir el futuro del planeta se supone seis escenarios de emisión de gases de efecto invernadero. Estas hipótesis ayudan a una mejor comprensión de este problema global.

Perfil Nacional para Evaluar la Infraestructura Nacional para la Gestión de Sustancias Químicas: resumen ejecutivo

DOAJ (DOAJ: Directory of Open Access Journals), May 1, 2008

Este documento fue elaborado por el Proyecto Plan Nacional de Implementacion del Convenio de Esto... more

DDT, una revisión histórica

DOAJ (DOAJ: Directory of Open Access Journals), Nov 1, 2014

Cadmium, does its presence warn us of anthropogenic pollution?

Hazardous wastes: sources, pathways, receptors / Richards J. Watts. USA: John Wiley & Sons, 1997. 764 p

DOAJ (DOAJ: Directory of Open Access Journals), Nov 1, 1999

Educacion Superior en America Latina: Reflexiones y perspectivas en química

Química: 25 años de realizaciones 1967-1992

Salinization in Peruvian North Coast Soils: Case Study in San Pedro de Lloc

Saline and Alkaline Soils in Latin America, 2020

Soils in San Pedro de Lloc have been used for agriculture since pre-Columbian times. Rice crops a... more Soils in San Pedro de Lloc have been used for agriculture since pre-Columbian times. Rice crops are still currently irrigated by flooding using water from the Jequetepeque River. Therefore, soil degradation by salinization is a permanent threat to soil fertility and production. This chapter presents the results of studies carried out in the 1960s, 70s, and 80s, as well as recent works on surface water, underground water, and soil quality monitoring. Physicochemical parameters, such as electrical conductivity, pH, total dissolved solids, hardness, chemical oxygen demand, as well as nitrate, sulfate, phosphate, and chloride concentrations were measured in both surface water and underground water. Organic matter, texture class, and SAR were additionally measured in the soil samples. Electrical conductivity was spatially represented for easy comparison. The isopleth curves of the water table and a map showing the expansion of the agricultural area are included. It is concluded that the increase in the volume of water used for irrigation after the construction of the Gallito Ciego dam has raised the water table and soil salinization has been stimulated. This has led to the abandonment of cultivation fields and groundwater wells between 2003 and 2019 due to intense salinization.

Is mercury from small-scale gold mining prevalent in the southeastern Peruvian Amazon?

Environmental Pollution, 2016

There is an ongoing debate on the fate of mercury (Hg) in areas affected by artisanal and small-s... more There is an ongoing debate on the fate of mercury (Hg) in areas affected by artisanal and small-scale gold mining (ASGM). Over the last 30 years, ASGM has released 69 tons of Hg into the southeastern Peruvian Amazon. To investigate the role of suspended matter and hydrological factors on the fate of ASGM-Hg, we analysed riverbank sediments and suspended matter along the partially ASGM-affected Malinowski-Tambopata river system and examined Hg accumulation in fish. In addition, local impacts of atmospheric Hg emissions on aquatic systems were assessed by analysing a sediment core from an oxbow lake. Hg concentrations in riverbank sediments are lower (20-53 ng g(-1)) than in suspended matter (∼400-4000 ng g(-1)) due to differences in particle size. Elevated Hg concentrations in suspended matter from ASGM-affected river sections (∼1400 vs. ∼30-120 ng L(-1) in unaffected sections) are mainly driven by the increased amount of suspended matter rather than increased Hg concentrations in the suspended matter. The oxbow lake sediment record shows low Hg concentrations (64-86 ng g(-1)) without evidence of any ASGM-related increase in atmospheric Hg input. Hg flux variations are mostly an effect of variations in sediment accumulation rates. Moreover, only 5% of the analysed fish (only piscivores) exceed WHO recommendations for human consumption (500 ng g(-1)). Our findings show that ASGM-affected river sections in the Malinowski-Tambopata system do not exhibit increased Hg accumulation, indicating that the released Hg is either retained at the spill site or transported to areas farther away from the ASGM areas. We suspect that the fate of ASGM-Hg in such tropical rivers is mainly linked to transport associated with the suspended matter, especially during high water situations. We assume that our findings are typical for ASGM-affected areas in tropical regions and could explain why aquatic systems in such ASGM regions often show comparatively modest enrichment in Hg levels.

Degradación fotocatalítica de detergentes en efluentes domésticos

Esta obra ha sido publicada bajo la licencia Creative Commons Reconocimiento-No comercial-Compart... more

Educación Superior en América Latina. Reflexiones y perspectivas en Química

by NADIA GAMBOA, Ximena Chiriboga, and Claudio dos Santos

Eastern and Western South America Regionally Based Assessment of Persistent Substances

by NADIA GAMBOA and Gabriela Eguren

QUIMICA 25 AÑOS DE REALIZACIONES

by NADIA GAMBOA and Olga Lock