![]() ![]() Numerous epidemiologic time- series studies have shown generally consistent associations of outdoor (ambient) air pollution with cardiovascular hospital admissions (Burnett et al. Association Between PM 10 and O 3 Levels and Hospital Visits for Cardiovascular Diseases in Bangkok, Thailand.Potential Role of Ultrafine Particles in Associations between Airborne Particle Mass and Cardiovascular Health.The rate of deposition of submicrometer particles from a particle source onto a silicon wafer in a VLF cleanroom is investigated. ![]() Most of the people are unaware about the potential impacts of this “exotic” display.Ĭoronary heart disease (CHD) is the leading cause of death and hospitalization among adults 6. Fireworks display end up in environmental contamination.Environmental Studies from Crisis to Cure – R.Rajagoplan Textbook of Environmental Studies for Undergraduate Courses. Keywords: cardiovascular diseases, cytokines, diesel, epidemiology, oxidative stress, particle size, toxic air pollutants. To advance this, we discuss in a companion article (Sioutas C, Delfino RJ, Singh M. The next steps in epidemiologic research are to identify more clearly the putative PM casual components and size fractions linked to their sources. High UFP exposures may lead to systemic inflammation through oxidative stress responses to reactive oxygen species and thereby promote the progression of atherosclerosis and precipitate acute cardiovascular responses ranging from increased blood pressure to myocardial infarction. It is likely that redox- active components in UFPs from fossil fuel combustion reach cardiovascular target sites. UFPs) dominate particle number concentrations and surface area and are therefore capable of carrying large concentrations of adsorbed or condensed toxic air pollutants.Ĭontrolled Exposure Study of Air Pollution and T-Wave Alternans in Volunteers without Cardiovascular Disease. Epidemiologic data using pollutant gases and particle characteristics such as particle number concentration and elemental carbon have provided indirect evidence that products of fossil fuel combustion are important. The causal components driving the PM associations remain to be identified. Panel studies with repeated measures have supported the time- series results showing associations between PM and risk of cardiac ischemia and arrhythmias, increased blood pressure, decreased heart rate variability, and increased circulating markers of inflammation and thrombosis. Numerous epidemiologic time- series studies have shown generally consistent associations of cardiovascular hospital admissions and mortality with outdoor air pollution, particularly mass concentrations of particulate matter (PM) ≤2. ![]() Potential Role of Ultrafine Particles in Associations between Airborne Particle Mass and Cardiovascular Health. ![]()
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