Effects of air pollution caused by sugarcane burning in Western São Paulo on the cardiovascular system

Abstract

OBJECTIVETo evaluate the effects of acute exposure to air pollutants (NO2 and PM10) on hospitalization of adults and older people with cardiovascular diseases in Western São Paulo.METHODSDaily cardiovascular-related hospitalization data (CID10 – I00 to I99) were acquired by the Department of Informatics of the Brazilian Unified Health System (DATASUS) from January 2009 to December 2012. Daily levels of NO2 and PM10 and weather data were obtained from Companhia Ambiental do Estado de São Paulo (CETESB – São Paulo State Environmental Agency). To estimate the effects of air pollutants exposure on hospital admissions, generalized linear Poisson regression models were used.RESULTSDuring the study period, 6,363 hospitalizations were analysed. On the day of NO2 exposure, an increase of 1.12% (95%CI 0.05–2.20) was observed in the interquartile range along with an increase in hospital admissions. For PM10, a pattern of similar effect was observed; however, results were not statistically significant.CONCLUSIONSEven though with values within established limits, NO2 is an important short-term risk factor for cardiovascular morbidity.

Impacto da queima da cana-de-açúcar sobre internações hospitalares por doenças respiratórias

“…Em regiões canavieiras, por exemplo, a queima noturna da palha da cana-de-açúcar pode ser considerada como o maior fator contribuinte de agravos em cidades interioranas 5,6 . Além de afetarem as comunidades próximas, os poluentes atmosféricos podem viajar quilômetros e atingir locais distantes da fonte de emissão e, mesmo que abaixo dos níveis determinados pela legislação, são capazes de provocar efeitos à saúde da população [7][8][9][10][11] .…”

Years of life lost due to premature deaths associated with air pollution: an ecological time-series study

“…calculated that an excess of 650 hospitalizations, with a cost of US$ 600,000, was caused through an increase in the concentration of this pollutant (PM 2.5 ) by 10 μg/m³. 5 A study carried out in Canada using data from 2003 to 2007 also identified a significant association between exposure to nitrogen dioxide (NO 2 ) and carbon monoxide (CO) and occurrences of hemorrhagic and ischemic strokes, with relative risks of 1.46 and 1.36. This association showed dose-response behavior with highest risk values in the fourth and fifth quintiles of NO 2 concentration.…”

Effects Of Environmental Factors And Atmospheric Pollution In The Incidence Of Hospital Admissions By Stroke In São Paulo City

“…The residing population in São Paulo, a global metropole is influenced by air pollution and climate changes, due to the accumulation of pollutants in this place by vehicular traffic and industrial gases emitted in the region 15 Stroke, as already seen, has high rates of mortality and high incidence worldwide 16 , as in Brazil. The relationship of this disease with pollution and temperature has already been considered in other studies 17,19 .…”