“…The concentrations of a total sum of 14 VOCs, toluene, acetone, and ethanol, were significantly associated with the increment of optoelectronic sales per million U.S. dollars after adjusting for traffic and meteorological conditions [10]. In the TFT-LCD companies, the measured VOCs included ethanol, acetone, isopropyl alcohol (IPA), propylene glycol monomethyl ether acetate (PGMEA), propylene glycol monomethyl ether, cyclohexanone, benzene, toluene, m/p-xylene, o-xylene, butyl acetate, and hexane [4,11,12]. Additionally, a very common chemical compound, tetramethylammonium hydroxide (TMAH), was reported to be used in the anisotropic wet etching of the TFT-LCD manufacturing processes [13].…”