Particulate Matter (PM2.5) in (μg/m³) WHO-Guideline=5 refers to the World Health Organization (WHO) guidelines for the concentration of fine particulate matter (PM2.5) in the air. Here is a detailed explanation:
Particulate Matter (PM2.5): Refers to airborne particles with a diameter of 2.5 micrometers or less. These particles are small enough to be inhaled deeply into the lungs.
in (μg/m³): Indicates the unit of measurement for the concentration of these particles in the air, which is micrograms per cubic meter.
WHO-Guideline=5: Refers to the World Health Organization guideline, which recommends that the annual average concentration of PM2.5 in the air should not exceed 5 μg/m³ to protect human health.
Therefore, according to WHO guidelines, the safe concentration of PM2.5 in the air is up to 5 micrograms per cubic meter. Levels above this value can pose health risks, especially for sensitive groups such as children, the elderly, and people with respiratory and cardiovascular diseases.
