Particulate Material (PM)

Definition

Particulate material (PM) refers to tiny solid or liquid particles suspended in the air. These particles can come from various sources such as dust, smoke, pollen, and emissions from combustion processes. PM pollution can have adverse effects on both human health and the environment.

Related terms

Air Quality Index (AQI): The Air Quality Index measures how clean or polluted the air is based on different pollutants including particulate matter. It helps people understand the potential health risks associated with current air quality levels.

Respiratory Issues: Particulate matter can irritate the respiratory system and worsen existing conditions such as asthma or bronchitis. Prolonged exposure to high levels of PM pollution may lead to chronic respiratory diseases.

Sources: Particulate matter can originate from natural sources like dust storms or wildfires, as well as human activities such as vehicle emissions, industrial processes, and construction sites. Understanding these sources helps in developing strategies for reducing PM pollution.