Prevalence of per- and polyfluoroalkyl substances (PFASs) in drinking and source water from two Asian countries

Guardian, Mary Grace E.; Boongaling, Edison G.; Bernardo-Boongaling, Valeree Ross R.; Gamonchuang, Jirasak; Boontongto, Tittaya; Burakham, Rodjana; Arnnok, Prapha; Aga, Diana S.

doi:10.1016/j.chemosphere.2020.127115

Cited by 58 publications

(20 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To our knowledge, there are no previous studies reporting concentrations of TFMS in surface water in lakes. Other studies have reported ultrashort-chain PFAAs in other matrices such as wastewater, tap water, and bottled water, where PFPrA was found to constitute up to 42% of total PFAAs …”

Section: Resultsmentioning

confidence: 94%

Mass Balance of Perfluoroalkyl Acids, Including Trifluoroacetic Acid, in a Freshwater Lake

Björnsdotter

Yeung

Kärrman

et al. 2021

Environ. Sci. Technol.

View full text Add to dashboard Cite

Perfluoroalkyl acids (PFAAs) are highly persistent chemicals that are ubiquitously found in the environment. The atmospheric degradation of precursor compounds has been identified as a source of PFAAs and might be an important pathway for contamination. Lake Vättern is one of Sweden’s largest lakes and is an important source for drinking water. In addition to contamination via atmospheric deposition, the lake is subject to several potential contamination sources via surface water inflow. The relevance of different sources is not well understood. A mass balance of selected PFAAs was assembled based on measured concentrations in atmospheric deposition, surface water from streams that constitute the main inflow and outflow, and surface water in the lake. The largest input was seen for trifluoroacetic acid (150 kg/year), perfluoropropanoic acid (1.6 kg/year), perfluorobutanoic acid (4.0 kg/year), and perfluoro-octanoic acid (1.5 kg/year). Both atmospheric deposition and surface water inflow was found to be important input pathways. There was a positive correlation between the input of most perfluoroalkyl carboxylic acids via atmospheric deposition and global radiation and between the input via surface water inflow and catchment area. These findings highlight the importance of atmospheric oxidation of volatile precursor compounds for contamination in surface waters.

show abstract

Section: Resultsmentioning

confidence: 94%

Mass Balance of Perfluoroalkyl Acids, Including Trifluoroacetic Acid, in a Freshwater Lake

Björnsdotter

Yeung

Kärrman

et al. 2021

Environ. Sci. Technol.

View full text Add to dashboard Cite

show abstract

“…In addition, a strong increase in short chain PFASs was observed by comparing the samples taken before 2010 [20,32] with those taken after 2010 [38,41], indicating that short chain PFASs in Chinese drinking water need more attention and source tracking, followed by efficient control and reduction [50,51]. Furthermore, in recent years, some newly identified PFASs were detected in Chinese drinking water, such as FHxSA, PFEtS, F-53B and HFPO-TA [52,53].…”

Section: Temporal Trendmentioning

confidence: 98%

Per- and polyfluoroalkyl substances (PFASs) in Chinese drinking water: risk assessment and geographical distribution

Liu

Huang

et al. 2021

Environ Sci Eur

View full text Add to dashboard Cite

Background In recent years, the widespread presence of perfluoroalkyl and polyfluoroalkyl substances (PFASs) in the environment and the related exposures and adverse health effects has received increasing attention. However, PFASs are not routinely monitored in drinking water in many parts of the world, including China. PFAS data are mainly generated by research studies. This paper provides an overview of the available research studies on PFASs in Chinese drinking water to better understand the current status of PFAS contamination and the potential for exposure. Results The available studies provided PFAS data from 526 drinking water samples across 66 cities in China with a total of approximately 452 million inhabitants. We mapped the risk distribution associated with PFAS-contaminated drinking water in China by comparing the measured levels with recent international guidelines. The PFAS concentrations reported in more than 20% of the studied cities, likely affecting 98.5 million people, were above the maximum contaminant level issued by Vermont in 2019. Furthermore, we also investigated the human exposure to PFASs in drinking water by estimating total daily intakes based on Exposure Factors Handbook of Chinese Population. This study revealed that East China and the Southwest regions posed a relatively higher risk to the Chinese population and some cities in the Yangtze River basin such as Zigong, Jiujiang, Lianyungang and a considerable share of other cities have exceeded the health-based guidelines issued by EU and US agencies. Conclusion Drinking water in many cities and regions in China is contaminated with PFASs at levels of concern. PFAS elimination of PFASs from drinking water in contaminated cities and affected regions in China is urgently needed. PFAS releases from industries and other sources need better control and reduction. Further monitoring in remote Chinese regions is needed to overcome the knowledge gaps for a more comprehensive understanding of population exposure. The current risk assessment of PFASs in China should be re-evaluated considering the most recent toxicological studies, to clarify if the guidelines need to be lowered as recently done in Europe and the United States. This is necessary to have the best national base for risk assessment and a science-based driver for countermeasures.

show abstract

“…Among the legacy substances, PFOA, PFOS, PFNA and PFHpA, were detected in all water samples from both countries, the latter compound being the most abundant. Of note, for the first time the authors reported the occurrence of novel PFAS alternatives such as N-MeFOSAA, which was the second most abundant compound in both the countries [177]. Also, by assessing the drinking water source known as Baoshan Reservoir, located in Hsinchu City, Taiwan, Jiang et al identified 6 different PFAS substances in all the tested samples.…”

Section: Pfas Occurrence In Drinking Watermentioning

confidence: 99%

PFAS Molecules: A Major Concern for the Human Health and the Environment

Panieri

Baralić

Đukić-Ćosić

et al. 2022

Toxics

167

View full text Add to dashboard Cite

Per- and polyfluoroalkyl substances (PFAS) are a group of over 4700 heterogeneous compounds with amphipathic properties and exceptional stability to chemical and thermal degradation. The unique properties of PFAS compounds has been exploited for almost 60 years and has largely contributed to their wide applicability over a vast range of industrial, professional and non-professional uses. However, increasing evidence indicate that these compounds represent also a serious concern for both wildlife and human health as a result of their ubiquitous distribution, their extreme persistence and their bioaccumulative potential. In light of the adverse effects that have been already documented in biota and human populations or that might occur in absence of prompt interventions, the competent authorities in matter of health and environment protection, the industries as well as scientists are cooperating to identify the most appropriate regulatory measures, substitution plans and remediation technologies to mitigate PFAS impacts. In this review, starting from PFAS chemistry, uses and environmental fate, we summarize the current knowledge on PFAS occurrence in different environmental media and their effects on living organisms, with a particular emphasis on humans. Also, we describe present and provisional legislative measures in the European Union framework strategy to regulate PFAS manufacture, import and use as well as some of the most promising treatment technologies designed to remediate PFAS contamination in different environmental compartments.

show abstract

Prevalence of per- and polyfluoroalkyl substances (PFASs) in drinking and source water from two Asian countries

Cited by 58 publications

References 47 publications

Mass Balance of Perfluoroalkyl Acids, Including Trifluoroacetic Acid, in a Freshwater Lake

Mass Balance of Perfluoroalkyl Acids, Including Trifluoroacetic Acid, in a Freshwater Lake

Per- and polyfluoroalkyl substances (PFASs) in Chinese drinking water: risk assessment and geographical distribution

PFAS Molecules: A Major Concern for the Human Health and the Environment

Contact Info

Product

Resources

About