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Sources of Building Occupant Exposure to Indoor Particulate Matter in Puerto Rico

Zimmetry Environmental provides air testing, monitoring and consulting services to identify and mitigate exposure risks to particulate matter and other airborne pollutants.

Bayamon, Puerto Rico – WEBWIRE

Fortunately, there are ways to measure the amount of PM indoors and identify its composition. With this information, steps can be taken to improve the indoor air quality and mitigate any exposure concerns.

A new webpage was recently published by the U.S. Environmental Protection Agency (EPA) that shares information about common sources of indoor particulate matter (PM). EPA reports that the agency is especially concerned about tiny particles that are 10 micrometers in diameter or smaller as they can be inhaled deep into the lungs where they can cause serious health effects, including decreased lung function and other adverse health conditions.

PM found indoors includes particles that come from outdoor air and particles that are generated indoors. In a residential environment, EPA notes that PM can be generated by:

  • Cooking;
  • Some cleaning activities;
  • Combustion activities – such as burning candles; use of fireplaces, unvented space heaters, and kerosene heaters; and by smoking tobacco or other products;
  • Biological contaminants – such as animals, pests, plants and mold;
  • Printers; and
  • Indoor chemical reactions.

EPA also states that indoor dust is settled PM from a variety of sources that may contain:

  • Outdoor soil and dust that has been blown or tracked indoors;
  • Biological particles, also known as biological contaminants, including pollen, mold spores, pet dander, dust mites, and human skin flakes and hair;
  • Particles from human activities, such as cooking, cleaning and burning candles;
  • Particles from consumer and personal care products;
  • Plastics, flame retardant and pesticides; and
  • Sometimes industrial chemicals and heavy metals, such as lead.

“Fortunately, there are ways to measure the amount of PM indoors and identify its composition,” said Harry Pena, President of Zimmetry Environmental. “With this information, steps can be taken to improve the indoor air quality and mitigate any exposure concerns that may be present. At Zimmetry, we utilize particle counters, aerosol monitors, and other forms of air sampling and testing to identify PM and other airborne contaminants. These services help to protect building occupants and optimize indoor conditions.”

Zimmetry also recently sponsored an educational video about common sources of indoor particulate matter that can be seen at:

To learn more about Zimmetry Environmental and their indoor air quality, industrial hygiene, environmental, and compliance testing and consulting services, please visit, call (787) 995.0005 or email .

About Zimmetry Environmental
Since 2002, Zimmetry Environmental has been providing environmental consulting services to building owners and managers, architects, engineers, EHS professionals and Fortune 500 companies. The company is based in Puerto Rico and provides services across the Caribbean and Central America. The professionals at Zimmetry offer environmental compliance, indoor air quality, asbestos, lead-based paint, Phase I ESAs and general environmental consulting services.

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 Puerto Rico
 Industrial Hygiene
 Indoor Air Quality
 Particulate Matter

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