Scientists have found in a recent study that indoor environments are exposing people to a growing mix of ‘new contaminants’, increasing the risks of several diseases linked to lungs, heart and cancer.
This is evident from findings published in the journal New contaminantsAlthough most research is done on pollution outdoors, people typically spend 90 percent of their time indoors, making them more sensitive to harmful chemicals.
Growing mix of “new contaminants”
Emerging pollutants consist of persistent organic pollutants, including antibiotics, microplastics and endocrine disrupting chemicals. The sources of these new contaminants include sunscreens, shampoos, plastics, paints, carpets, building materials and electronics.
These pollutants enter the body through inhalation, skin contact and ingestion, making them widely found in urine, blood, breast milk and bone marrow. As a result, people are at risk for heart disease, cancer and developmental problems.
Unlike traditional outdoor contaminants, new indoor contaminants are more dangerous because they act as chemical reactors. As a result of a chemical reaction, these contaminants can turn into new, more persistent and toxic chemicals.
According to corresponding author Wei Du of Kunming University of Science and Technology, “In many buildings, indoor pollution may be more serious than what we measure outside, and this is especially concerning for children and older adults who rarely leave these environments.”
“Our daily routines put us in constant contact with chemical residues in the air, dust and on surfaces, even when we cannot see or smell them,” he added.
Given the severity of indoor contaminants, it is a top priority to ensure systematic monitoring of these emerging contaminants in indoor environments. In addition, high-resolution measurements and research must be carried out to protect the generations.
