title: Occurrence and formation of trihalomethanes in marine aquaria studied using solid-phase microextraction gas chromatography-mass spectrometry.
abstract: The occurrence and formation of chlorinated and brominated trihalomethanes (THMs) were studied in artificial saltwater and natural seawater marine aquaria as well as in groundwater and surface waters. A new headspace solid-phase microextraction method was used, which included gas chromatography-mass spectrometry and provided method detection limits of less than 0.1 microg/L, with a signal-to-noise ratio of 3 to 5. The results showed that disinfection by using either chlorine or ozone caused a significant formation of THMs in situ. Speciation of the THMs was a strong function of the water matrix, with initial bromide concentrations playing a pivotal role. These results provide a tool for understanding and monitoring the formation of key disinfection byproducts in marine aquaria that may cause respiratory, eye irritation, or other health concerns.
authors: Department of Chemistry, Missouri University of Science and Technology, Rolla, Missouri, USA.
authors: Honglan
authors: H
authors: Shi
authors: Craig
authors: C
authors: Adams
mesh_terms: D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods*; D012623:Seawater / Q000032:analysis*; D052617:Solid Phase Microextraction / Q000379:methods*; D022882:Trihalomethanes / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D022882:Trihalomethanes; D014874:Water Pollutants, Chemical