Article
Environmental Sciences
Yatai Li, Longkun He, Di Xie, Anqi Zhao, Lixin Wang, Nathan M. Kreisberg, John Jayne, Yingjun Liu
Summary: This study investigated the indoor air dynamics of semivolatile organic compounds (SVOCs) in response to temperature and ventilation rate in an office setting. The results showed that temperature had a strong and quick impact on SVOC concentrations, while changes in ventilation rate had no significant influence. Further analysis suggested that these observations were due to the sorption of SVOCs onto indoor surfaces. These findings are important for understanding and managing indoor air exposure to SVOCs.
ENVIRONMENT INTERNATIONAL
(2022)
Article
Engineering, Environmental
Robin E. Dodson, Katherine E. Manz, Shaunessey R. Burks, Richa Gairola, Nina F. Lee, Yun Liu, Kurt D. Pennell, Erica D. Walker, Joseph M. Braun
Summary: The study investigated the impact of an air filtration method, CR Box, on indoor air concentrations of SVOCs during the COVID-19 pandemic. The deployment of CR Boxes in an office building resulted in lower concentrations of several PFAS and phthalates. However, there were also increases in the concentrations of certain PFAS and phthalates, although these increases were not statistically significant. The results suggest that CR Boxes can reduce exposure to certain SVOCs but may contribute to increased sound levels.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Aureelie Laguerre, Elliott T. T. Gall
Summary: Wildfire smoke can accumulate indoor materials, and two methods were developed for measuring PAHs on indoor materials. The extraction recoveries of PAHs ranged from 50-83% and were influenced by the number of aromatic rings. The recovery of heavy PAHs was higher than that of light PAHs.
Article
Engineering, Environmental
Jason B. X. Hua, Rachel F. Marek, Keri C. Hornbuckle
Summary: The study investigated PCB emissions and concentrations in three elementary school rooms built in 1958. It was found that glass-block windows had the highest emissions, and airborne PCB concentrations exceeded action and guidance levels. The study highlights the importance of directly measuring PCB emissions to reduce PCB concentrations in school air.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Miriam L. Diamond, Joseph O. Okeme, Lisa Melymuk
Summary: The hands of indoor occupants transport SVOCs in the indoor environment to an extent comparable to that of fugacity-driven and advective transport, similar to the transmission of pathogens. The significance lies in the ability of hands to rapidly transfer SVOCs among surfaces indoors, with implications for exposure.
ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS
(2021)
Article
Meteorology & Atmospheric Sciences
Liqing Wu, Zhenhao Ling, Min Shao, Huan Liu, Sihua Lu, Shengzhen Zhou, Junchen Guo, Jingying Mao, Jian Hang, Xuemei Wang
Summary: S/IVOCs play a crucial role in the formation of secondary organic aerosols (SOA) in China, with SOA concentrations being highly sensitive to S/IVOC emissions. Upgrading the S/IVOC emission inventory and chemical evolution parameterization in the WRF-Chem model has improved the model's ability to resolve observed SOA concentrations, but there are still discrepancies between simulation and observation. Additionally, SOA concentrations in China are predominantly influenced by S/IVOC emissions compared to other precursor parameters.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2021)
Article
Construction & Building Technology
Sutharsini Sivanantham, Claire Dassonville, Anthony Gregoire, Laeticia Malingre, Olivier Ramalho, Corinne Mandin
Summary: A nationwide indoor air quality survey in French schools between 2013 and 2017 revealed different profiles of indoor pollution, including classrooms with high concentrations of phthalates, air pollutants, dust pollutants, or lower pollutant levels. These clusters were characterized by building characteristics and outdoor environmental factors, with highly-polluted classrooms tending to be older, less mechanically ventilated, with higher outdoor pollutant concentrations and signs of building dampness.
ENERGY AND BUILDINGS
(2021)
Article
Engineering, Environmental
Ying Yu, Song Guo, Hui Wang, Ruizhe Shen, Wenfei Zhu, Rui Tan, Kai Song, Zirui Zhang, Shuangde Li, Yunfa Chen, Min Hu
Summary: This study investigates the formation of secondary organic aerosol (SOA) from Chinese domestic cooking emissions using a Gothenburg potential aerosol mass reactor. It found that factors such as the types of volatile organic compounds and semivolatile/intermediate-volatility organic compounds, as well as cooking styles, have a greater impact on SOA formation from cooking emissions than the cooking materials themselves. Additionally, comprehensive characterization of semivolatile/intermediate-volatility organic compounds is urgently needed for a better understanding of SOA formation from cooking emissions.
ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS
(2022)
Article
Environmental Sciences
Nicole Ninya, Laura Vallecillos, Rosa Maria Marce, Francesc Borrull
Summary: This study monitored the presence of volatile organic compounds (VOCs) and semi-volatile organic compounds (semi-VOCs) in indoor and outdoor environments in a school in Tarragona, Spain. The results showed a significant increase in solvent concentrations indoors due to the implementation of COVID-19 measures. The concentrations of organic compounds in indoor air were twenty times higher than those outdoors.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Lenka Sedlackova, Lisa Melymuk, Branislav Vrana
Summary: This study used silicone elastomer as a passive sampler to monitor gaseous SVOCs in indoor air, and developed a model based on mass transfer theory to estimate the air sampling rate. The study also examined uptake and release kinetics of SVOCs and found that the use of performance reference compounds for in-situ passive sampler calibration was suitable.
Article
Engineering, Environmental
Chenyang Bi, Xinke Wang, Hongwan Li, Xiaofeng Li, Ying Xu
Summary: Phthalate and alternative plasticizers are among the most abundant indoor pollutants and can directly transfer from source products to dust, with various factors such as Koa, emission parameter and dust layer characteristics influencing the concentration and kinetics of this transfer. Minimizing the use of SVOC-containing products and regular vacuuming are effective strategies to reduce young children's exposure to SVOCs.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Environmental Sciences
Sergey N. Maximoff, Rajat Mittal, Ajeet Kaushik, Jaspreet S. Dhau
Summary: Volatile organic compounds (VOCs) are a significant class of indoor air pollutants and reducing their levels can be achieved through the use of activated carbons (ACs). A study estimated the amount of AC needed under different conditions using literature data on thermophysical parameters for 45 pairs of AC-VOC.
Article
Construction & Building Technology
Kyunghoon Kim, Hyeong-Moo Shin, Luann Wong, Thomas M. Young, Deborah H. Bennett
Summary: The study examined the temporal variability of indoor dust concentrations of semivolatile organic compounds (SVOCs) and found that most SVOCs have small within-home temporal variability, but some may vary over time due to seasonal changes.
Article
Engineering, Environmental
Hai-Ling Li, Pu-Fei Yang, Li-Yan Liu, Bei-Bei Gong, Zi-Feng Zhang, Wan-Li Ma, Robie W. Macdonald, Anatoly N. Nikolaev, Yi-Fan Li
Summary: Equations have been developed to predict the partitioning of gas/particle and dust/gas in indoor environments, and these equations have been verified by global monitoring data. The assumption of instantaneous equilibrium for compounds with high partition coefficients may not be valid. The newly developed equations provide a tool for accurate assessment of human exposure to SVOCs in the indoor environment.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Green & Sustainable Science & Technology
Wenmin Ma, Jian Hu, Jun Li, Peng Gao, Chukwunonso Peter Okoli, Peng Wang, Jun Li
Summary: This study investigated the horizontal and vertical distribution characteristics, sources, and health risks of VOCs/SVOCs in an abandoned petrochemical enterprise site in Guangzhou City. The investigation revealed that VOCs/SVOCs were mainly concentrated in the oil delivery console, storage tank area, oil refining area, and fire pumping stations. The main sources of VOCs/SVOCs were petroleum, solvent, and coal sources.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Environmental Sciences
Kyunghoon Kim, Deborah H. Bennett, Antonia M. Calafat, Irva Hertz-Picciotto, Hyeong-Moo Shin
ENVIRONMENTAL RESEARCH
(2020)
Article
Construction & Building Technology
Kyunghoon Kim, Hyeong-Moo Shin, Luann Wong, Thomas M. Young, Deborah H. Bennett
Summary: The study examined the temporal variability of indoor dust concentrations of semivolatile organic compounds (SVOCs) and found that most SVOCs have small within-home temporal variability, but some may vary over time due to seasonal changes.
Review
Engineering, Environmental
Clara M. A. Eichler, Elaine A. Cohen Hubal, Ying Xu, Jianping Cao, Chenyang Bi, Charles J. Weschler, Tunga Salthammer, Glenn C. Morrison, Antti Joonas Koivisto, Yinping Zhang, Corinne Mandin, Wenjuan Wei, Patrice Blondeau, Dustin Poppendieck, Xiaoyu Liu, Christiaan J. E. Delmaar, Peter Fantke, Olivier Jolliet, Hyeong-Moo Shin, Miriam L. Diamond, Manabu Shiraiwa, Andreas Zuend, Philip K. Hopke, Natalie von Goetz, Markku Kulmala, John C. Little
Summary: A critical review of indoor chemical emissions and exposure led to the proposal of a modular mechanistic framework for predicting human exposure to SVOCs. The framework allows for integration of new knowledge, other chemical classes of indoor pollutants, and mechanistic processes relevant to human exposure indoors.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Environmental Sciences
Jiwon Oh, Deborah H. Bennett, Antonia M. Calafat, Daniel Tancredi, Dorcas L. Roa, Rebecca J. Schmidt, Irva Hertz-Picciotto, Hyeong-Moo Shin
Summary: Prenatal exposure to per- and polyfluoroalkyl substances (PFAS) such as PFOA and PFNA was found to be associated with an increased risk of autism spectrum disorder (ASD) in children, while exposure to PFHxS showed a negative association. Furthermore, higher concentrations of PFOA, PFNA, and PC-1 were associated with an increased risk of ASD.
ENVIRONMENT INTERNATIONAL
(2021)
Article
Environmental Sciences
Kyunghoon Kim, Hyeong-Moo Shin, Luann Wong, Thomas M. Young, Deborah H. Bennett
Summary: Couch PUF can absorb many SVOCs and may be an important reservoir for some SVOCs, but it may not be an effective passive sampling medium for those with relatively high Koa values. Direct dermal contact with couch seats may be an important exposure route for non-users of skin-applied compounds.
Article
Environmental Sciences
Jiwon Oh, Rebecca J. Schmidt, Daniel Tancredi, Antonia M. Calafat, Dorcas L. Roa, Irva Hertz-Picciotto, Hyeong-Moo Shin
Summary: This study revealed that prenatal maternal serum perfluorooctanoate (PFOA) concentrations were inversely associated with child's cognitive development in infancy and toddlerhood, particularly at 24 and 36 months. While other five PFAS showed weak associations with cognitive development, PFOA exhibited significant negative effects on both the overall cognitive scores and specific subscales.
ENVIRONMENTAL RESEARCH
(2021)
Article
Engineering, Environmental
Kyunghoon Kim, Hyeong-Moo Shin, Stefanie A. Busgang, Dana Boyd Barr, Parinya Panuwet, Rebecca J. Schmidt, Irva Hertz-Picciotto, Deborah H. Bennett
Summary: This study measured the concentrations of phenols and parabens in the urine samples of pregnant women in California from 2007 to 2014, finding a decreasing trend in certain substances over time, with levels consistently lower than in pregnant women in other U.S. regions. This may be attributed to national regulations or advocacy campaigns in California.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Engineering, Environmental
Hyeong-Moo Shin, Jiwon Oh, Kyunghoon Kim, Stefanie A. Busgang, Dana Boyd Barr, Parinya Panuwet, Rebecca J. Schmidt, Irva Hertz-Picciotto, Deborah H. Bennett
Summary: This study examined the variability of urinary concentrations of phenols, parabens, and triclocarban during pregnancy. It found that pooling biospecimens within the same trimester can increase the reproducibility of exposure to these compounds in pregnant women. Additionally, methyl paraben and propyl paraben showed higher intraclass correlation coefficients compared to bisphenol A.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Environmental Sciences
Jiwon Oh, Hyeong-Moo Shin, Tomoko Nishimura, Mohammad Shafiur Rahman, Nagahide Takahashi, Kenji J. Tsuchiya
Summary: This study investigated the effects of prenatal exposure to PFAS on child cognitive development. The results showed mixed associations between PFOA and PFOS concentrations and cognitive functions at specific ages, but positive associations with longitudinal changes in cognitive development from 4 to 40 months of age.
ENVIRONMENT INTERNATIONAL
(2022)
Article
Environmental Sciences
Yachen Zhu, Hyeong-Moo Shin, Luohua Jiang, Scott M. Bartell
Summary: This study used an approximate Bayesian computation method to improve the estimation of PFOA exposure and investigate the effects of PFOA on preeclampsia. By combining measured PFOA serum concentrations and environmentally modeled PFOA concentrations, the study reconstructed historical PFOA exposures. The results showed a similar association between PFOA and preeclampsia compared to previous studies.
ENVIRONMENTAL RESEARCH
(2022)
Article
Engineering, Environmental
Jiwon Oh, Deborah H. Bennett, Daniel J. Tancredi, Antonia M. Calafat, Rebecca J. Schmidt, Irva Hertz-Picciotto, Hyeong-Moo Shin
Summary: Exposure to PFAS during pregnancy and lactation is a growing public health concern. This study found that PFAS concentrations in mothers changed over time, with breastfeeding duration playing a significant role in postpartum PFAS concentrations.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Construction & Building Technology
Seon-Kyung Park, Heon-Jun Lee, Eugene Song, Yerin Jung, Hyun Jung Yoo, Jeong-Eun Oh, Hyeong-Moo Shin, Jung-Hwan Kwon
Summary: Permethrin, a commonly used active ingredient in spray-type home insecticides, is poorly characterized in terms of indoor exposure. This intervention study with four participants found that personal air monitoring could reduce uncertainties in permethrin exposure assessment resulting from the use of spray-type insecticides.
Article
Biochemistry & Molecular Biology
Mariana Parenti, Rebecca J. Schmidt, Sally Ozonoff, Hyeong-Moo Shin, Daniel J. Tancredi, Paula Krakowiak, Irva Hertz-Picciotto, Cheryl K. Walker, Carolyn M. Slupsky
Summary: This study investigated the association between prenatal phthalate exposure and changes in maternal and placental metabolomes, as well as their association with child neurodevelopmental outcomes. The findings suggest that maternal phthalate exposure during pregnancy can affect the placental metabolome, and this metabolome is associated with neurodevelopmental outcomes in male children.
Article
Environmental Sciences
Jiwon Oh, Hyeong-Moo Shin, Kurunthachalam Kannan, Stefanie A. Busgang, Rebecca J. Schmidt, Julie B. Schweitzer, Irva Hertz-Picciotto, Deborah H. Bennett
Summary: This case-control study found that childhood concentrations of PFOA and PFHpA were associated with increased odds of ASD and DD, while PFUnDA was associated with decreased odds of ASD. Mixture analysis showed that PFAS mixture was associated with increased odds of ASD.
ENVIRONMENTAL RESEARCH
(2022)
Review
Endocrinology & Metabolism
Hyeong-Moo Shin, Jiwon Oh, Rebecca J. Schmidt, Elizabeth N. Pearce
Summary: Autism spectrum disorder (ASD) has a rising prevalence and is associated with abnormal maternal thyroid function during pregnancy and exposure to endocrine-disrupting chemicals.
ENDOCRINOLOGY AND METABOLISM
(2022)
