Launch of the Alliance of Severo Ochoa Centres and Maria de Maeztu Units of Excellence

​ The Secretary of State for R&D+i, Carmen Vela, chaired the kickoff meeting of the new Severo Ochoa and Maria Maeztu Alliance of Excellence.

Green gentrification can limit the favourable effects of green areas on health

A scientific research conducted by ICTA-UAB and IMIM suggests that more socially disadvantaged neighbours do not benefit equally from the effects newly created green areas have on health.

Candidates invited for 3 postdoc and 5 PhD student positions in ERC project of Prof. Jeroen van den Bergh

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Oil contamination in the Amazon modifies chemical composition of rivers

A scientific study by the ICTA-UAB and ISS-EUR quantifies the environmental impact of oil extraction activities and contamination in headwaters of the Amazon.

ICTA-UAB researchers alert that oil palm plantations produce infertility in tropical lands

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ICTA-UAB to study the sustainable use of soil and natural resources in the framework of the COUPLED program

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UAB scientists and citizens can identify Barcelona's allergy-causing plants with the new Plant*tes app

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EJAtlas Includes 2,100 Case Studies on Socio-Environmental Conflicts Around the World

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Unrestricted Improvements in Fishing Technology Threaten the Future of Seafood

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¿Son los Pirineos una barrera real para el transporte atmosférico de polen?

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Ice age thermostat prevented extreme climate cooling

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The New Theory of Economic “Agrowth” Contributes to the Viability of Climate Policies

 ICTA-UAB researcher Jeroen van den Bergh publishes in Nature Climate Change a study in which he proposes a new economic theory compatible with the fight against climate change.

Map Commemorating Women’s Resistance to Extractivism and Defense of Life and Territory in Latin America

A map created by researchers at the Institute of Environmental Science and Technology of the Universitat Autònoma de Barcelona (ICTA-UAB), the Latin-American Network of Women Defending Social and Environmental Rights and the Colombian NGO CENSAT-Agua Viva Friends of the Earth Colombia makes visible the struggles of women in Latin America against mining and in defense of life.

European Project to Analyse the Effects of Waste Generated by Tourism on Mediterranean Islands

An European study involving the Institute of Environmental Science and Technology of the Universitat Autònoma e Barcelona will address and propose solutions to the effects of the increase of waste generated by tourism on Mediterranean islands during the summer season.

More Urban Green Needed in Barcelona to Have Positive Effects on Environmental Quality and Wellness

A PhD dissertation by Francesc Baró, from ICTA-UAB, quantifies and maps the benefits of urban and periurban green in Barcelona such as the improvement of air quality, climate change mitigation and opportunities for outdoor recreation.

New ICTA-UAB 'Welcome Guide'

The new ICTA-UAB 'Welcome Guide' it is at your disposal now. With this document, we aim to help you discover the basics of the PhD programme, ICTA-UAB’s structure, etc.

Social Relations, Success in Hunting and Good Health, Sources of Happiness for Indigenous People

Rural and indigenous people from the Global South push absolute income into the background as source of wellbeing.

More than One-Third of the Population Would Stop Economic Growth to Achieve Sustainability

A study by researchers of the Institut of Environmental Science and Technology (ICTA-UAB) assesses Spanish public opinion on economic growth, the environment and prosperity.

The ICTA-UAB Will Assess, in Collaboration with EU Staff, the Effectiveness of EU Sustainability Policies

The EU Project MAGIC (H2020) coordinated by the Institut de Ciència i Tecnologia Ambientals de la Universitat Autònoma de Barcelona (ICTA-UAB) has the goal to study and develop new strategies for a better use of science for governance.
ICTA-UAB and ISGlobal Researchers Denounce Lack of Studies on the Harmful Health Effects of Oil Spills

Date: 2016-10-26

. A project led by ICTA-UAB, ISGlobal and the UAB Faculty of Veterinary Medicine in the Peruvian Amazon analyses the health effects of oil spills among people living close to oil extraction areas in developing countries. 

. The resident communities come into contact with toxics through drinking water and contaminated food, as well as dermal contact with contaminated farming soil. 

A total of 638 million inhabitants in developing countries live close to oil extraction sites. Despite this elevated number, a recent study by researchers from the Institute of Environmental Science of Universitat Autònoma de Barcelona (ICTA-UAB), the Barcelona Institute for  Global  Health (ISGlobal) and the UAB Faculty of Veterinary Medicine points out the fact that the harmful effects of the contamination caused by oil extraction to the health of people living in these areas is unknown.

The study, published in the journal Environmental Health, is part of a broad scientific project which has been conducted by ICTA-UAB for over a decade and which analyses the concerning levels of oil contamination existing in areas of the Peruvian Amazon very close to the border with Ecuador. The scientists criticise the fact that there is an absence of studies which can determine with precision the harmful effects these oil spills have on the indigenous population and demonstrate that the oil contamination expands thousands of kilometres of rivers, sediments and soil, thereby causing a chain of bioaccumulation of heavy metal contaminants which spans over water, fish, animals and people.

Researchers were able to verify in previous studies that in this area alone, inhabited by Quechua and Achuar societies, 1,100 kilometres of rivers are affected, representing 22% of the total; while cartographic studies conducted reveal that a total of 2.6 million barrels of oil have been spilled. This region of the Amazon rainforest was declared an environmental emergency by the Peruvian government in 2003 and a sanitary emergency in 2013, but no local registries of morbidity or mortality exist up to date. "People who are ill cannot visit the doctor or go to the hospital. They simply die and no one knows the cause", says Martí Orta, ICTA-UAB scientist who criticises that although the adverse health effects of being exposed to oil and other derivative products are known, neither restorative measures nor sanctions have been applied.

According to researchers, the majority of existing studies have focused on analysing harmful effects of spills among clean-up groups, but not on the populations residing in the area, which are extremely vulnerable since they are exposed to contaminants for prolonged periods of time. "It is important to study the effects of oil derivative contamination on the people living in regions where oil is extracted, since the time and the way in which they are exposed to these substances are different.   Moreover, studies conducted until now focused on workers and not on the effects produced in the part of the population which could be more vulnerable such as children, pregnant women or people with other health problems", says ISGlobal scientist Cristina O'Callaghan-Gordo. The local communities take in contaminated water and food, and are physically in contact with affected rivers and lands through bathing and daily farming tasks.

Being exposed to the oil and produced water used in the extraction process (rich in heavy metals, hydrocarbons and other radioactive elements) cause neurological and hematologic health problems and produce irritations among the population. In addition, the burning of natural gas means that individuals inhale volatile organic compounds such as nitrogen dioxide and sulfur dioxide.

The study emphasises the need for further research into the effects of oil spills in the resident population with the aim of truly discovering the health risks associated with exposure to these elements, promote effective control policies to prevent contamination and foster public health policies dedicated to avoiding human exposure to already contaminated areas. 

Original article
O’Callaghan-Gordo C., Orta-Martínez M., Kogevinas M. “Health effects of non-occupational exposure to oil extraction". Environmental Health. 2016

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