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Term Air pollution
Definition

The presence of gases, powders and fumes in the air which can modify its natural constituents, thereby altering its physical and chemical properties. The term criteria pollutants refers to common substances that are harmful to human health and wellbeing and that can be used as indicators of air quality. Criteria pollutants are carbon monoxide, sulfur oxides (SOx), nitrogen oxides (NOx), ozone (O3), lead (Pb) and particulate matter (PM). Air quality and air pollution are closely related to transportation, urban development, and health.  

Air pollution can be both indoor, within the confines of the places where people work or live, and outdoor, namely in the atmosphere. Normally, indoor air pollution is the subject of study in toxicology and occupational medicine.

Air pollutants can be classified as primary or secondary, depending on how they form. Primary pollutants include all contaminants discharged to the atmosphere, while secondary contaminants are not directly discharged, but formed as a result of the transformations and chemical reactions experienced by primary contaminants.

The environmental regulation for air quality in the Dominican Republic (NA-AI-001-03) sets the maximum allowable concentration of pollutants, while regulation NA-AI-002-03 establishes the maximum permissible levels of atmospheric air pollutants from fixed sources.
 

 
 

Additional Information
PhotoAir pollution
Topic  BiodiversityEnvironmental managementEnvironmental educationProtected areas