![]() These practices will continue to evolve as people return to work and resume other activities, leading to more routine and thorough disinfection to minimize virus transmission. Exploration of potential effects, environmental fate, and technologies to minimize environmental releases of QACs, however, is warranted.ĭuring the SARS-CoV-2 (COVID-19) pandemic, many disinfection practices, including hand washing and surface cleaning, have changed to limit disease transmission. The threat caused by COVID-19 is clear, and a reasonable response is elevated use of QACs to mitigate spread of infection. Thus, it is important to assess potential environmental and engineering impacts of elevated QAC usage, which may include disruption of wastewater treatment unit operations, proliferation of antibiotic resistance, formation of nitrosamine disinfection byproducts, and impacts on biota in surface waters. QACs have been previously detected in wastewater, surface waters, and sediments, and effects on antibiotic resistance have been explored. The amounts of these compounds used in household, workplace, and industry settings has very likely increased, and usage will continue to be elevated given the scope of the pandemic. EPA for use to inactivate the SARS-CoV-2 (COVID-19) virus. ![]() Quaternary ammonium compounds (QACs) are active ingredients in over 200 disinfectants currently recommended by the U.S.
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