Coarse particles and hospital admissions due to respiratory diseases in children. An ecological time series study.

Background: Exposure to particulate matter (PM) is associated with hospitalizations due to respiratory diseases among children.

Design And Setting: An ecological time series study was carried out to identify the role of coarse fractions of particulate matter (PM10-2.5) in hospitalizations among children up to 10 years of age, in Piracicaba (SP) in the year 2015.

Environmental pollution and deaths due to stroke in a city with low levels of air pollution: ecological time series study.

Context And Objective: Little has been discussed about the increased risk of stroke after exposure to air pollutants, particularly in Brazil. The mechanisms through which air pollution can influence occurrences of vascular events such as stroke are still poorly understood. The aim of this study was to estimate the association between exposure to some air pollutants and risk of death due to stroke.