BACKGROUND Particulate matter <10 mum (PM(10)) from fossil fuel combustion is associated with an increased prevalence of respiratory symptoms in children and adolescents. However, the effect of PM(10) on respiratory symptoms in young children is unclear. METHODS The association between primary PM(10) (particles directly emitted from local sources) and the prevalence and incidence of respirato...

objectives the present study aimed to determine the effect of increased visitation time on physiological indices of the patients hospitalized in icus. materials and methods this clinical trial study was conducted in the icus of vail-e-asr hospital in arak city, iran. a total of 60 subjects were randomly assigned to the intervention and control groups with visitation time for 10 minutes 3 times ...

BACKGROUND Although outdoor particulate matter (PM) has been linked to mortality and asthma morbidity, the impact of indoor PM on asthma has not been well established. OBJECTIVE This study was designed to investigate the effect of in-home PM on asthma morbidity. METHODS For a cohort of 150 asthmatic children (2-6 years of age) from Baltimore, Maryland, a technician deployed environmental mo...

Literature comparing national ambient air quality standards (AAQSs) globally is scattered and sparse. Twenty-four hour AAQSs for particulate matter <10 μm in aerodynamic diameter (PM(10)) and sulfur dioxide (SO(2)) in 96 countries were identified through literature review, an international survey, and querying an international legal database. Eighty three percent, of the 96 countries with infor...

Air pollution can increase mortality risk and may also exacerbate socioeconomic inequalities in health outcomes. This New Zealand study investigated whether exposure to particulate air pollution (PM(10)) was associated with mortality and health inequalities. Annual mean PM(10) estimates for urban Census Area Units (CAUs) were linked to cause-specific mortality data. A dose-response relationship...