|Children and staff may be exposed to|
phthalates coming from vinyl floors.
They published their results on the ubiquitous plastic ingredients in the ACS journal Environmental Science & Technology.
Chungsik Yoon and colleagues note that polyvinyl chloride (PVC), also known as vinyl, is the second most-produced plastic by volume and is commonly used in flooring.
Phthalates, which increase both the flexibility and durability of PVC, are key ingredients in PVC materials used in vinyl flooring and a wide range of other products, including toys, food packaging, medical devices, and even pharmaceuticals, cosmetics and soaps.
The problem is that these additives leach out of products into the air and dust. Concern over their potential health effects, particularly in infants and children, has spurred scientists to investigate human exposure to them indoors.
However, most studies fall short of verifying what products were contributing to indoor phthalate levels. Yoon's team set out to fill that gap.
Using a portable instrument called an X-ray fluorescence (XRF) analyzer, they tested the flooring materials in 50 public and private daycares and kindergartens in Seoul, South Korea, to test for PVC.
They also collected dust samples from various surfaces in the buildings and analyzed them.
The PVC-verified flooring was a major source of the most common phthalate that they detected, called di(2-ethylhexyl) phthalate (known as DEHP).
"This is the first study to verify the sources of phthalates with an XRF analyzer and to evaluate the relationship between phthalate concentrations and PVC-verified materials," the scientists state.
Source: American Chemical Society
Children have a higher risk of chemical exposure, since their bodies are still developing and they are breathing higher volumes of air compared to their size.
Since children and their caregivers or teachers spend the majority of time indoors, providing good indoor air quality has become an important goal for schools and daycare centers.
There three ways to help improve indoor air quality:
- Adequate ventilation: In many schools and daycares, the existing ventilation system would need major updates to help improve IAQ. However, changing filters frequently and opening windows when possible can make a difference.
- Source control: Schools and daycares should take stock of cleaning products and cosmetic products that are used and switch to the least toxic ones. Craft materials and school supplies should also be non-toxic.
- Air cleaning: A portable air cleaner with activated carbon and HEPA will help provide cleaner air by removing airborne chemicals, gases, odors, particles, allergens, dust, mold, bacteria and viruses.
Electrocorp has designed a wide range of air cleaners for schools, universities and daycare facilities. The air purifiers come with a deep-bed activated carbon filter, a HEPA filter and optional UV germicidal filtration.
For more information, please contact Electrocorp today.