RESUMO

Air quality in the State of Sao Paulo was evaluated during the first general State plan of mobility restrictions due to the COVID-19 pandemic (24th March to May 31, 2020). Nitrogen dioxide (NO2), ozone (O3), particulate matter PM10 and PM2.5 and sulphur dioxide (SO2) concentrations were assessed in cities of the Sao Paulo State with a monitoring station and compared to historical data. Linear regression models were built to investigate the relationship between the isolation of the population - determined using mobile phone monitoring data - and the concentration of each pollutant during the studied period. Although the reduction of pollutants such as NO2, SO2 and PM2.5 is very clear, the economic and climatic characteristics of each region were decisive in the general behaviour of O3 and PM10. It was not possible to establish a correlation between the pollutants and the isolation index, partly due to the lack of data, partly due to the compliance of the population to those measurements, which was variable over time. Another important limitation factor was the absence of data related to the pollutants of interest in many of the stations. However, the isolation measures carried out in the State opened the opportunity to individually assess the air quality measurements in each of the stations, enabling an understanding that will allow in the future the design of air quality policies together with local sanitary policies.

Assuntos

RESUMO

Fundão mining tailings dam in Mariana District has collapsed in 2015 and caused the biggest environmental disaster in Brazil. Barra Longa District had its urban area invaded by toxic sludge and its population was extensively exposed to it. Blood and urine samples were collected from 11 residents, focused on investigating the presence of metals at the end of an exploratory health study in 507 inhabitants in 2016. Results have shown increased levels of aluminum, arsenic, cadmium, cooper, lead, manganese and nickel, and zinc defficiency in their body, as well as clinical outcomes.

Assuntos

RESUMO

No Brasil, os padrões nacionais de qualidade do ar são da década de 1990, desatualizados em relação aos internacionais, o que dificulta um controle eficaz dos níveis de poluição e contribui para a continuidade de mortes e internações. A fim de quantificar o montante de desfechos desfavoráveis de saúde em decorrência da concentração de material particulado no Estado de São Paulo, esse trabalho tem como objetivo realizar projeções de mortes, internações e gastos com internações públicas atribuíveis à poluição atmosférica, para o período de 2012 a 2030. Para isso foram considerados distintos cenários de poluição por material particulado fino (MP2,5), tomando-se como referência o ano-base 2011. Os resultados mostram que, mantendo o mesmo nível de poluição observado em 2011, haverá um total de mais de 246 mil óbitos por todas as causas entre 2012 e 2030, cerca de 953 mil internações hospitalares públicas e um gasto público estimado em internações de mais de R$ 1,6 bilhão. A magnitude dos resultados aponta para a necessidade de implementação de medidas mais rigorosas para o controle da poluição do ar, formas alternativas de energia limpa de transporte, entre outras ações, como forma de reduzir os danos à saúde da população e os gastos governamentais...

Abstract National air quality standards in Brazil were established in the 1990s and are now outdated in relation to international patterns. This creates a challenge for effective control of air pollution levels and contributes to increasing mortality and hospital admissions rates. In order to quantify the impact of adverse health outcomes due to the concentration of particulate matter in São Paulo, this paper aims to project the number of deaths, hospitalizations and amounts spent on public hospital admissions from 2012 to 2030. It considers distinct scenarios of air pollution by fine particulate matter (PM2.5), using the year 2011 as baseline. The results show that if air pollution continues at the current levels, it will cause more than 246 thousand deaths from all causes between 2011 and 2030, as well as some 953 thousand hospital admissions and an estimated public health cost of R$ 1.6 billion due to hospitalizations. The magnitude of these results demonstrates the need to implement more rigorous measures to control air pollution and to encourage clean energy transportation, among other public actions, in order to reduce damage to the health of the population and to diminish government spending...

Resumen En Brasil, los estándares nacionales de calidad del aire datan de la década de 1990, es decir, están obsoletos en comparación con las normas internacionales, lo que dificulta un control eficaz de los niveles de contaminación y contribuye a la continuidad de las muertes y hospitalizaciones ocasionadas por esta razón. Con el fin de cuantificar el total de los resultados adversos para la salud debidas a la concentración de material particulado en el Estado de São Paulo, este trabajo tiene como objetivo realizar proyecciones de muertes, hospitalizaciones y gastos por internaciones en hospitales públicos atribuibles a la polución atmosférica en el período comprendido entre 2012 y 2030. Para ello se han considerado distintos escenarios de contaminación por material particulado fino (MP2,5), tomando como referencia el año base 2011. Los resultados muestran que, manteniendo el mismo nivel de contaminación observado en esa fecha, habrá un total de más de 246.000 muertes por todas las causas entre 2011 y 2030, alrededor de 953.000 ingresos hospitalarios en el sistema público de salud y un gasto público por internaciones estimado en más de R$ 1,6 billones. La magnitud de los resultados pone en evidencia la necesidad de implementar medidas más rigurosas para el control de la contaminación del aire, formas alternativas de transporte con energía limpia, entre otras acciones, con el fin de reducir los daños a la salud de la población y los gastos del gobierno...

Assuntos

Assuntos

RESUMO

OBJECTIVE: To evaluate whether resistance to third-generation cephalosporins and/or aztreonam was associated with a higher mortality rate among patients with nosocomial Klebsiella pneumoniae infections. DESIGN: Retrospective cohort study.Setting. Tertiary care university hospital. METHODS: A total of 143 patients with nosocomial infections due to K. pneumoniae were evaluated. Death within 21 days after diagnosis of infection was the outcome. Demographic data, invasive procedures, presence and severity of underlying conditions, infection diagnosis, anatomic site of isolation, and treatment of infection, as well as resistance to third-generation cephalosporins and/or aztreonam, were evaluated for association with the outcome. RESULTS: The mortality associated with nosocomial K. pneumoniae infections was 22% in our study. Drug resistance was found in isolates from 48% of case patients. Multivariate analysis demonstrated that the severity of the patient's underlying condition (odds ratio, 12.50; P<.01) and isolation of the microorganism from the blood or from another usually sterile site (odds ratio, 2.94; P=.03) were associated with death. On the other hand, the presence of resistance to cephalosporins and/or aztreonam did not affect mortality, and the use of inadequate treatment was not significantly associated with increased mortality. When only the severe cases of infection were analyzed, the results were unchanged. CONCLUSIONS: Resistance to cephalosporins and/or aztreonam did not affect mortality, and the use of inadequate treatment was not significantly associated with increased mortality. The reasons for this are not clear. It is possible that the severity of the underlying disease and the patient's condition have a larger role than the K. pneumoniae infection in determining the outcome, and initially inadequate treatment may not have an impact sufficient to cause irreversible damage, allowing treatment to be changed to an effective drug.

Assuntos