EMERGENCY AUTHORIZED DISINFECTANTS IN SCHOOLS CAUSE DIABETES, INFERTILITY/BIRTH DEFECTS - PART 2

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NOT JUST SCHOOLS!

INDEPENDENT STUDY, INDIANA UNIVERSITY:

Abstract: Quaternary ammonium compounds (QACs or “quats”) make up a class of chemicals used as disinfectants in cleaning and other consumer products. While disinfection is recommended for maintaining a safe environment during the COVID-19 pandemic, the increased use of QACs is concerning as exposure to these compounds has been associated with adverse effects on reproductive and respiratory systems. We have determined the occurrence of 19 QACs in residential dust collected before and during the COVID-19 pandemic. QACs were detected in greater than 90% of the samples collected during the pandemic at concentrations ranging from 1.95 to 531 μg/g (n = 40; median of 58.9 μg/g). The total QAC concentrations in these samples were significantly higher than in samples collected before the COVID-19 pandemic (p less than 0.05; n = 21; median of 36.3 μg/g). Higher QAC concentrations were found in households that generally disinfected more frequently (p less than 0.05). Disinfecting products commonly used in these homes were analyzed, and the QAC profiles in dust and in products were similar, suggesting that these products can be a significant source of QACs. Our findings indicate that indoor exposure to QACs is widespread and has increased during the pandemic.

Download slides: http://hdl.handle.net/2142/109895