Often, the dust particles are small, leading to high concentrations of PM10 and PM2.5 and all related health impacts.įorecasts of concentrations of air pollution gases are presented in the third panel. PM2.5 increases the age-specific mortality risk, particularly from cardiovascular causes.ĭesert Dust consists of particles smaller than 62 μm originating in deserts.The biggest impact of particulate air pollution on public health is understood to be from long-term exposure to PM2.5: PM10 includes fine particulate matter defined as PM2.5, which are fine particles with a diameter of 2.5 μm or less. PM10 reduces the body's ability to fight infections.PM10 causes or aggravate bronchitis and other lung diseases.PM10 can increase the number and severity of asthma attacks.PM10 are among the most harmful of all air pollutants. PM10 is visible by eye as the haze that we think of as smog. Particulate matter also forms when gases emitted from motor vehicles and industry undergo chemical reactions in the atmosphere. They are a mixture of materials that can include smoke, soot, dust, salt, acids, and metals. These particles are less than 10 microns in diameter (approximately 1/7th the thickness of the a human hair) and are defined as PM10. Of greatest concern to public health are the particles small enough to be inhaled into the deepest parts of the lung. Sources of particulate matter can be natural or anthropogenic. Atmospheric particulate matter (PM) are microscopic solid or liquid matter suspended in the air. The second panel shows the forecast of particles (PM and desert dust) for Elk Grove. Therefore, measurements along roads will show higher values than forecast here. meteoblue uses the background index, because weather models can not reproduce small-scale differences along the roads. The Air Quality index is defined separately near roads (“roadside” index) or away from roads ("background" index). For the pollen forecast there are no official guidelines for color-coding, as pollen are not part of the Air Quality Index forecast. CAQI colour-coding is used in all air pollution forecast panels of the meteogram to indicate the level of pollution. It is a number on a scale from 1 to 100, where a low value (green colors) means good air quality and a high value (red colors) means bad air quality. The entire population is more likely to be affected.Īctive children and adults, and people with respiratory disease, such as asthma, should avoid all outdoor exertion everyone else, especially children, should limit outdoor exertion.The top panel shows the forecast for the Common Air Quality Index (CAQI) used in Europe since 2006. The general public is not likely to be affected.Įveryone may begin to experience health effects members of sensitive groups may experience more serious health effectsĪctive children and adults, and people with respiratory disease, such as asthma, should avoid prolonged outdoor exertion everyone else, especially children, should limit prolonged outdoor exertion Members of sensitive groups may experience health effects. Air quality is considered satisfactory, and air pollution poses little or no riskĪir quality is acceptable however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.Īctive children and adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.
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