ArticleSe pu = Chinese journal of chromatography2025
[Occurrence characterization of fluorinated liquid crystal monomers in indoor dust and human health exposure risks].
Article in Se pu = Chinese journal of chromatography, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Fluorinated liquid crystal monomers （FLCMs） are the most widely used materials in liquid crystal display （LCD） manufacturing. They can be released into environmental media during production， use， and disposal， and are recognized as a class of novel persistent organic pollutants. Contamination of FLCMs in indoor dust is closely linked to human health； however， existing research has yet to fully elucidate their occurrence characteristics and population-differentiated health risks within this medium. This study analyzed the occurrence characteristics of FLCMs in dust from five indoor environments （laboratories， dormitories， classrooms， print shops， and cafeterias） using comprehensive two-dimensional gas chromatography coupled with time-of-flight mass spectrometry （GC×GC-TOF MS）. Population-differentiated health risks were further evaluated by Monte Carlo simulation. The results showed that the total contents of 20 target FLCMs ranged from 3.68 to 593 ng/g （median： 85.1 ng/g）. Print shops exhibited the highest ∑FLCMs contents （206-593 ng/g）， followed by laboratories （89.0-219 ng/g） and classrooms （28.4-137 ng/g）. This differential distribution was closely associated with the number and types of electronic devices， ventilation conditions， and indoor cleaning frequency. The health risk assessment indicated that 4-［difluoro（3，4，5-trifluorophenoxy）methyl］-3，5-difluoro-4'-propylbiphenyl （tFPO-CF2-dF3B）， and 4-［
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