We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Bisphenol S and Its Chlorinated Derivatives in Indoor Dust and Human Exposure
AI summary Read the abstract
Bisphenol S (BPS), increasingly used as a substitute for BPA in plastics, along with several of its chlorinated derivatives, was detected in indoor dust and air samples collected from occupied spaces. Concentrations varied by setting, suggesting that indoor environments are a meaningful route of human exposure to these chemicals. The presence of chlorinated BPS variants raises additional concern, as these derivatives may carry distinct toxicological profiles.
Bisphenol S (BPS), an environmental endocrine disruptor, has been identified in global environmental matrices. Nevertheless, limited studies have investigated the presence of chlorinated analogues of BPS (Clx-BPSs) with potential estrogenic activities in environmental matrices. In this study, the occurrence of BPS and five types of Clx-BPSs was characterized in indoor dust (n = 178) from Hangzhou City. BPS was measurable in 94% of indoor dust samples, with an average level of 0.63 μg/g (1-BPS (2-chloro-4-(4-hydroxyphenyl)sulfonylphenol; detection frequency 70%), Cl2-BPS-2 (2-chloro-4-(3-chloro-4-hydroxyphenyl)sulfonylphenol; 65%), and Cl2-BPS-1 (2,6-dichloro-4-(4-hydroxyphenyl)sulfonylphenol; 61%) were among the frequently detected Clx-BPSs. Cl1-BPS was the most abundant analyte, with an average of 0.048 μg/g (2-BPS-1 (0.035 μg/g, 2-BPS-2 (0.031 μg/g, 1-BPS (p < 0.01), as well as between BPS and Cl2-BPS-1 (p < 0.01). Moreover, an estimation was made for the total daily intake of Clx-BPSs via the ingestion of indoor dust by infants, children, and adults. This study presents the first evidence of the existence of Clx-BPSs in indoor dust, concurrently highlighting the necessity to address their potential human exposure risks.
More Papers Like This
Bisphenol A and its analogues in outdoor and indoor air: Properties, sources and global levels
AI summary Read the abstract
This review covers the presence of bisphenol A (BPA), a hormone-disrupting chemical used in plastic manufacturing, in indoor and outdoor air worldwide. BPA exposure through air and dust is a concern because it can interfere with hormones even at low levels, potentially affecting fertility, development, and metabolism. The review is relevant to microplastics because BPA is a common plastic additive that can leach from microplastic particles, adding to human exposure through multiple routes.
Occurrence, spatial distribution, and main source identification of ten bisphenol analogues in the dry season of the Pearl River, South China
AI summary Read the abstract
Researchers detected ten bisphenol analogues in surface water from China's Pearl River, finding that BPA and BPS together accounted for 68% of total bisphenol load and tracing their sources to domestic wastewater, treatment plant effluent, and microplastic leaching, with combined estrogenic activity posing low-to-medium environmental risk.
Determination of bisphenol A in size fractions of indoor dust from several microenvironments
AI summary Read the abstract
This study measured bisphenol A (BPA) — a harmful chemical found in many plastics — across different size fractions of indoor dust collected from homes, offices, and shops. BPA concentrations varied by dust particle size, suggesting fine indoor dust is a significant pathway for human BPA exposure.
In silico profiling of endocrine-disrupting potential of bisphenol analogues and their halogenated transformation products
AI summary Read the abstract
Researchers used computer modeling to evaluate the endocrine-disrupting potential of 18 bisphenol A analogues and their halogenated transformation products across 14 human hormone receptors. They found that several BPA replacements showed higher predicted endocrine-disrupting activity than BPA itself, with BPZ and BPPH flagged as the most hazardous. The study also found that halogenation generally increased the binding affinity of bisphenols to hormone receptors, raising concerns about the safety of BPA substitutes in the environment.
Bisphenol A and its analogues in sedimentary microplastics of Hong Kong
AI summary Read the abstract
Researchers investigated the occurrence and spatial distribution of bisphenol A and its analogues (BPB, BPF, BPS) in microplastics collected from 11 beaches in Hong Kong, finding BPA as the dominant contaminant with concentrations ranging from 82.4 to 989 ng/g microplastic.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.