Particulate
Particulate refers to the fine solid particles or liquid droplets that are suspended in the air. These particles can originate from various sources, including combustion processes, industrial emissions, vehicle exhaust, and natural phenomena such as dust storms and volcanic eruptions. The size, composition, and concentration of particulates can vary widely, depending on the source and environmental conditions.
Health Effects[edit | edit source]
Exposure to particulates can have significant health effects. Fine particulates (those with a diameter of 2.5 micrometers or less, also known as PM2.5) can penetrate deep into the lungs and may even enter the bloodstream. This can lead to a range of health problems, including respiratory diseases, cardiovascular diseases, and premature death. The World Health Organization (WHO) has identified particulate pollution as a major global health risk.
Measurement and Regulation[edit | edit source]
The concentration of particulates in the air is typically measured in micrograms per cubic meter (µg/m3). Many countries have established air quality standards that specify maximum allowable concentrations of particulates. These standards are often based on the guidelines provided by the WHO.
In addition to regulatory standards, there are also various technologies and strategies for controlling particulate emissions. These include filtration systems, electrostatic precipitators, and scrubbers for industrial emissions, as well as emission control technologies for vehicles.
See Also[edit | edit source]
References[edit | edit source]
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