The Effect of Moderate Temperature Rise on Emitted Chemicals from Modern Building Materials DOI Creative Commons
P. Chepaitis, Qian Zhang, David Kalafut

и другие.

Buildings, Год журнала: 2024, Номер 14(11), С. 3683 - 3683

Опубликована: Ноя. 19, 2024

Chemical emissions from building materials may significantly impact indoor air quality and potentially human health, since individuals spend most of their time indoors. With rising global temperatures more frequent heatwaves, materials’ resilience becomes crucial for structural integrity. However, the effects temperature rise on material are not systematically studied. This study investigates effect a moderate volatile organic compound (VOC) aldehyde eighteen commonly used materials, such as engineered hardwood, nylon carpet, terrazzo flooring, acoustic tile, at two elevated yet realistic points. The chemical were collected using micro-chamber setup analyzed thermal desorption/gas chromatography/mass spectrometry high-performance liquid chromatography. results showed that 78% tested demonstrated increased higher temperatures. Wood-flooring statistically significant increases in formaldehyde temperatures, which could be associated with health risks. Eight particularly those large surface area applications, half these labeled “low-VOC”. These findings inform updating standards third-party certification respect to variation when assessing emissions. research aims provide comprehensive understanding VOC emerging environmental conditions due extreme heat climate scenarios.

Язык: Английский

Legacy and Emerging Plasticizers and Stabilizers in PVC Floorings and Implications for Recycling DOI Creative Commons
Helene Wiesinger,

Christophe Bleuler,

Verena Christen

и другие.

Environmental Science & Technology, Год журнала: 2024, Номер 58(4), С. 1894 - 1907

Опубликована: Янв. 19, 2024

Hazardous chemicals in building and construction plastics can lead to health risks due indoor exposure may contaminate recycled materials. We systematically sampled new polyvinyl chloride floorings on the Swiss market (

Язык: Английский

Процитировано

17

More than 30 Years of PVC Recycling in Europe—A Critical Inventory DOI Open Access

Uwe Lahl,

Barbara Zeschmar-Lahl

Sustainability, Год журнала: 2024, Номер 16(9), С. 3854 - 3854

Опубликована: Май 4, 2024

PVC has a special status, as chlorine is component of the polymer molecule. The properties are reason why molecule needs additivation. mass plastic to which most diverse and quantitatively largest number additives added. This makes difficult recycle. More than three decades ago, industry announced its commitment improve sustainability material through recycling. We analysed latest figures from European industry, ensuring that statistics included quantities enter market recyclate. also significance replacing virgin with recyclates. conclude this that, after good decades, recycling result rather meagre. lion’s share waste in Europe still going waste-to-energy plants, where it tends be nuisance. many announcements close cycle via incineration have not got very far either. And expand chemical parallel been successful. On basis stocktaking, we analysed, second separately published part, conclusions can drawn for regulatory measures, building on current ECHA investigation report.

Язык: Английский

Процитировано

7

Material Recycling of Plastics—A Challenge for Sustainability DOI Open Access

Uwe Lahl,

Barbara Zeschmar-Lahl

Sustainability, Год журнала: 2024, Номер 16(15), С. 6630 - 6630

Опубликована: Авг. 2, 2024

The complexity of plastic polymers and even more so additives has increased enormously in recent years. This makes the material recycling waste considerably difficult, especially case mixed waste. Some have now been strictly regulated or completely banned for good reasons (‘legacy additives’). Material mechanical generally uses old plastics that still contain these substances. Consequently, products are manufactured using such recyclates contaminated with harmful poses a major challenge sustainability, as there is conflict objectives between protecting health consumers, vulnerable groups, conserving resources recycling, keeping cycles ‘clean’ destroying pollutants, transporting them to safe final sink. With regard first objective, we recommend avoiding use intensive contact consumers (‘contact-sensitive products’) until further notice. We also show climate policy challenges (and chemical) industry necessitate defossilization (‘feedstock change’). turnaround can only succeed if solely closed-loop takes place future; should primarily replace virgin plastics. For this means work used high degree homogeneity known formulation collected separately, already today PET bottles. objective article illustrate increasing additives, legacy which will force legislative readjustment todays’ recycling.

Язык: Английский

Процитировано

5

How Indoor Decoration Materials Contribute to Phthalates Pollution: Uncovering Occurrences, Sources, and Their Implications for Environmental Burdens in Households DOI

Hangjia Shen,

Ying Zhang,

Xinyu Lu

и другие.

Journal of Hazardous Materials, Год журнала: 2025, Номер 490, С. 137719 - 137719

Опубликована: Фев. 25, 2025

Язык: Английский

Процитировано

0

Recycling process of decoration and demolition waste is a neglected source for emerging concerns in particulate phase: PAHs as an example DOI Creative Commons

Nana Zang,

Pinjing He, Hua Zhang

и другие.

Environment International, Год журнала: 2025, Номер unknown, С. 109393 - 109393

Опубликована: Март 1, 2025

Язык: Английский

Процитировано

0

Microplastics generation from flooring materials under UV Exposure: A comprehensive analysis of microplastics emission and chemical deformation DOI

Won Duk Suh,

Ho Hyeon Jo, Young Choi

и другие.

Journal of Hazardous Materials, Год журнала: 2025, Номер unknown, С. 138194 - 138194

Опубликована: Апрель 1, 2025

Язык: Английский

Процитировано

0

Engineering Innovations for Polyvinyl Chloride (PVC) Recycling: A Systematic Review of Advances, Challenges, and Future Directions in Circular Economy Integration DOI Creative Commons
Alexander Chidara, Kai Cheng, David Gallear

и другие.

Machines, Год журнала: 2025, Номер 13(5), С. 362 - 362

Опубликована: Апрель 28, 2025

Polyvinyl chloride (PVC) recycling poses significant engineering challenges and opportunities, particularly regarding material integrity, energy efficiency, integration into circular manufacturing systems. This systematic review evaluates recent advancements in mechanical innovations, tooling strategies, intelligent technologies reshaping PVC recycling. An emphasis is placed on machinery-driven solutions—including high-efficiency shredders, granulators, extrusion moulders, advanced sorting systems employing hyperspectral imaging robotics. further explores chemical technologies, such as pyrolysis, gasification, supercritical fluid extraction, for managing contamination additive removal. The of Industry 4.0 notably digital twins artificial intelligence, highlighted its role predictive maintenance, real-time quality assurance, process optimisation. A combined PRISMA approach ontological mapping are applied to classify technological pathways lifecycle optimisation strategies. Critical constraints—including thermal degradation, leaching, feedstock heterogeneity—are examined alongside emerging like microwave-assisted depolymerisation, offering scalable, low-emission solutions. Regulatory instruments, REACH Extended Producer Responsibility (EPR), analysed their influence machinery compliance design standards. Drawing from sustainable frameworks, this study also promotes eco-designs, modular paper concludes by proposing a digitally optimized, machinery-integrated model aligned with economy principles support the development future-ready reprocessing infrastructures. serves comprehensive resource researchers, practitioners, policymakers, advancing polymer

Язык: Английский

Процитировано

0

Formamide as a Robust Alternative to Water for Plasticizing Polyelectrolyte Complexes DOI

Sarriah Hassoun,

Zachary A. Digby,

Nagham Abou Hamad

и другие.

Macromolecules, Год журнала: 2024, Номер unknown

Опубликована: Сен. 23, 2024

Язык: Английский

Процитировано

2

LitChemPlast: An Open Database of Chemicals Measured in Plastics DOI Creative Commons
Helene Wiesinger, Anna Shalin, Xinmei Huang

и другие.

Environmental Science & Technology Letters, Год журнала: 2024, Номер 11(11), С. 1147 - 1160

Опубликована: Окт. 29, 2024

Plastics contain various chemical substances, which can impact human and ecosystem health the transition to a circular economy. Meanwhile, information on presence of individual substances in plastics is generally not made publicly available, but relies extensive analytical efforts. Here, we review measurement studies chemicals compile them into new LitChemPlast database. Over 3500 stemming from all plastic life-cycle stages, have been detected different 372 studies. Approximately 75% only nontargeted workflows, while targeted analyses focused limited well-known particularly metal(loid)s, brominated flame retardants,

Язык: Английский

Процитировано

2

Plastics Recycling and Hazardous Substances – Risk Cycle DOI Open Access

Uwe Lahl,

Barbara Zeschmar-Lahl

Опубликована: Июль 2, 2024

The complexity of plastic polymers and even more so additives has increased enormously in recent years. This makes the high-quality recycling mixed waste considerably difficult. Some have now been strictly regulated or completely banned for good reasons ('legacy additives'). Material mechanical generally utilises old plastics that still contain these substances. Consequently, products are manufactured using such recyclates contaminated with harmful We therefore recommend avoiding use intensive contact consumers until further notice. also show climate policy challenges (and chemical) industry necessitate a defossilisation ('feedstock change'). turnaround can only succeed if solely takes place future; should primarily replace virgin plastics. work used high degree homogeneity known formulation collected separately, as is already case today PET bottles. In this context, we would like to point out inconsistencies current legislation on European emissions trading system.

Язык: Английский

Процитировано

2