Condiciones de salud de los indígenas hitnü potencialmente expuestos a petróleo crudo (Arauca, Colombia) / Health conditions of Hitnü indigenous people potentially exposed to crude oil in Arauca, Colombia

Introducción. El pueblo hitnü vive en condiciones sanitarias precarias, con inseguridad alimentaria y víctima de la violencia sociopolítica en Arauca (Colombia). Además, se sospecha que pueden estar afectados por la exposición a los hidrocarburos del petróleo. Objetivo. Identificar los eventos de salud del perfil de morbilidad y mortalidad de los indígenas hitnü que podrían asociarse con la exposición a petróleo crudo. Materiales y métodos. Se realizó un estudio transversal con indígenas hitnü, durante febrero y marzo de 2021, época de sequía. Se aplicó un cuestionario de hogares y uno individual para recolectar datos del ambiente peridomiciliario, ocupaciones y otras actividades, así como datos sociodemográficos, signos, síntomas y hallazgos de un examen médico. La potencial asociación con los hidrocarburos se exploró considerando tres grupos, según su localización: cabecera de Arauca, resguardo Aspejená (no expuestos) y resguardos de San José del Lipa y La Vorágine (expuestos por su cercanía al río Ele y afluentes). Con listados libres, se exploraron las causas de muerte. El estudio incorporó un riguroso manejo intercultural en todos sus componentes. Resultados. Participaron 576 indígenas de 16 asentamientos. El agua consumida pudo servir como medio de exposición a los hidrocarburos. Los problemas de salud fueron muy variados e incluían enfermedades infecciosas y crónicas, malnutrición y trauma. Las masas en el cuello se asociaron con residir en los resguardos ancestrales (RP=3,86; IC95% 1,77-8,39), territorios potencialmente expuestos al petróleo. Las causas de muerte más relevantes fueron el homicidio, los tumores y la tuberculosis. Conclusión. Por su posible asociación con los hidrocarburos, es prioritario el estudio intercultural de linfoadenopatías entre indígenas potencialmente expuestos al petróleo.

Introduction. The Hitnü indigenous people live in precarious sanitary conditions, with food insecurity and being victims of sociopolitical violence in Arauca, Colombia. In addition, it is possible that they may be affected by exposure to hydrocarbons found in oil. Objective. To identify the health outcomes of morbidity and mortality profiles of the Hitnü people that could be associated with the exposure to crude oil. Materials and methods. A cross-sectional study was carried out with Hitnü indigenous people, during February and March, 2021, time of drought. A household questionnaire was applied, and one individual to collect data from the environment around the house, occupations and other activities, as well as data from sociodemographic, signs, symptoms, and findings of a medical examination. The potential association with hydrocarbons was explored considering three groups: inhabitants in Arauca city, Aspejaná reserve (not exposed), and San José del Lipa and La Vorágine reserves (exposed by the Ele river and tributaries). With free listings, causes of death were explored. The study incorporated a rigorous intercultural management in all its components. Results. A total of 576 indigenous people from 16 settlements participated. The water consumed could serve as means of exposure to hydrocarbons. Health problems were very varied, including infectious and chronic diseases, malnutrition, and trauma. The masses on the neck were associated with residing in the ancestral reserves (PR = 3.86; CI95% 1.77-8.39), territories with potential exposure to crude-oil. The most relevant causes of death were homicide, tumors, and tuberculosis. Conclusion. For its possible association with exposure to hydrocarbons, it is a priority to start the intercultural study of lymphadenopathies in indigenous communities potentially exposed to crude oil.

Desastres com petróleo e ações governamentais ante os impactos socioambientais e na saúde: scoping review / Oil disasters and government actions in the face of social, environmental, and health-related impacts: A scoping review

RESUMO Este artigo teve por objetivo analisar as ações desenvolvidas pelos governos para o enfrentamento dos impactos socioambientais e na saúde em decorrência dos desastres envolvendo petróleo no mundo. Trata-se de uma revisão de escopo realizada na Bireme, Lilacs, SciELO, PubMed, Cochrane Library e Embase, considerando artigos publicados entre 1973 e 2021. As buscas efetuadas nas bases de dados resultaram em 22 artigos sobre 10 desastres de petróleo ao redor do mundo em três continentes (Ásia, América e Europa), cujas causas dos desastres foram encalhe (3), naufrágio (1), colisão (2), derrame (3) e explosão (1). As ações desenvolvidas foram caracterizadas como intersetoriais, econômicas, ambientais e na saúde, sendo que as mais frequentes foram ações ambientais e econômicas. Nas ações desenvolvidas, observaram-se críticas ao controle, mitigação ou prevenção dos danos instantâneos ou futuros decorrentes dos desastres por petróleo, sendo essa uma agenda ainda em aberto para os movimentos sociais na luta pela garantia de um ambiente saudável, promotor de saúde e com preservação de toda a sua biodiversidade. Conclui-se que as ações para o enfrentamento dos desastres por petróleo nos diferentes países parecem ter sido incipientes, revelando uma incapacidade governamental de orientar o enfrentamento dos impactos desse evento inusitado.

ABSTRACT This article aims to analyze the actions taken by governments to face the social, environmental, and health impacts of oil spill disasters worldwide. This scoping review was conducted in Bireme, Lilacs, SciELO, PubMed, Cochrane Library, and Embase databases, considering articles published between 1973 and 2021. The database search returned 22 articles on ten global oil disasters in three continents (Asia, the Americas, and Europe), whose causes were grounding (03), shipwreck (01), collision (02), spill (03), and explosion (01). The actions developed were characterized as intersectoral, economic, environmental, and health-related, and the most frequent were environmental and economic actions. In the actions developed, we observed criticisms of controlling, mitigating, or preventing instantaneous or future damages resulting from oil disasters, which is still an open agenda for social movements in the struggle to ensure a healthy, health-promoting environment that preserves all its biodiversity. The actions to face oil disasters in different countries seem incipient, revealing a governmental inability to guide the confrontation of the impacts of this unusual event.

Advances in the bioaugmentation-assisted remediation of petroleum contaminated soil / 生物工程学报

Bioremediation is considered as a cost-effective, efficient and free-of-secondary-pollution technology for petroleum pollution remediation. Due to the limitation of soil environmental conditions and the nature of petroleum pollutants, the insufficient number and the low growth rate of indigenous petroleum-degrading microorganisms in soil lead to long remediation cycle and poor remediation efficiency. Bioaugmentation can effectively improve the biodegradation efficiency. By supplying functional microbes or microbial consortia, immobilized microbes, surfactants and growth substrates, the remediation effect of indigenous microorganisms on petroleum pollutants in soil can be boosted. This article summarizes the reported petroleum-degrading microbes and the main factors influencing microbial remediation of petroleum contaminated soil. Moreover, this article discusses a variety of effective strategies to enhance the bioremediation efficiency, as well as future directions of bioaugmentation strategies.

A Retrospective Mid- and Long-term Follow-up Study on the Changes in Hematologic Parameters in the Highly Exposed Residents of the Hebei Spirit Oil Spill in Taean, South Korea

OBJECTIVES: This study aimed to analyze changes in hematologic parameters in the residents of the areas highly contaminated by the Hebei Spirit Oil Spill in 2007 and those who participated in the clean-up activities. METHODS: According to demographic characteristics, health status and behavior, and level of exposure to oil, we compared the hematologic results in 2009 and 2012 among 701 residents. The hematologic parameters were composed of white blood cell (WBC) count, and levels of hemoglobin, hematocrit (Hct), aspartate aminotransferase (AST), alanine aminotransferase (ALT), glucose, glycosylated hemoglobin (HbA1c), blood urea nitrogen (BUN), creatinine (Cr), total cholesterol (T-chol), high-density lipoprotein (HDL), and triglyceride (TG). RESULTS: Paired t-test revealed that the WBC count and levels of Hct, AST, ALT, glucose, and HbA1c significantly increased, whereas the BUN, Cr, HDL, and TG levels significantly decreased. Multiple linear regression modelling showed a relationship between the level of exposure to oil and temporal changes in Hct, glucose, HbA1c, and BUN levels. CONCLUSION: Our results suggest a relationship between level of exposure to oil and changes in hematologic parameters over 3 years. Further studies should be conducted to determine the impact of oil spill on health such as the occurrence of diseases.