Abstract
A large quantity of volatile organic compounds (VOCs) can be released into water environments from oil spills and chemical exposure accidents. A recently developed solid ceramic dosimeter (SCD) could be used for long-term measuring of low VOCs concentrations in water. However, calibration and field testing of these SCDs have thus been far insufficient to apply for VOCs monitoring in a water environment in a chemical industrial area. We conducted laboratory calibration experiments and stability tests of the SCD. The mass accumulation of 14 target VOCs from 2 to 100 μg/L was increased linearly with time in the sampler. The absorption rate of the VOCs was related to Henry’s law constant. The average diffusion coefficient of the 14 VOCs in the SCD wall was 1.02 × 10−9 m2/s. The SCD was utilized in a petrochemical plant complex in South Korea with an industrial wastewater reservoir. After a total of 7 days of deployment, chloroform, ethylbenzene, and toluene were detected by both passive sampling and grab sampling at the same VOC concentrations.
Highlights
As the chemical industry in Korea has rapidly grown over the last several decades, the threat of chemical incidents has been increasing
The method detection limit (MDL), limit of quantification (LOQ), relative standard deviation (RSD), and recovery were calculated to measure the performance of the analytical method
The LOQ is defined as the minimum concentration of the compounds that can be determined with an acceptable concentration level of precision and trueness
Summary
As the chemical industry in Korea has rapidly grown over the last several decades, the threat of chemical incidents has been increasing. Membranes 2020, 10, 186 organisms can occur in both the short and long terms, continuous monitoring of VOCs in the water near chemical industrial areas is necessary. Passive sampling is easy, cost effective, and requires only simple extraction of the analytes from the sampler [6] Due to these advantages, passive sampling is widely used for the measurement of hydrophobic organic contaminants in aquatic environments [7,8,9,10]. Use of the proper sampling and analytical methods for VOC monitoring in water is essential in order to evaluate the effect of VOCs that can be released due to chemical accidents. The performance of passive sampling using this SCD was be compared with that of conventional grab sampling
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
