Analysis of possible carcinogenic compounds in recycled plastic modified asphalt

Boom, Yeong Jia; Enfrin, Marie; Grist, Stephen; Giustozzi, Filippo

doi:10.1016/j.scitotenv.2022.159910

Cited by 15 publications

(4 citation statements)

References 31 publications

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“…111,112 Some aromatic hydrocarbons released are suspected or proven carcinogens that may cause cancer through chronic inhalation even at trace concentrations. 113 Exposure also poses risks for non-cancer health end points. 114 Field surveys found higher incidences of asthma, bronchitis, and premature deliveries in communities located near major roadways or asphalt mixing plants.…”

Section: Health Risks On Humansmentioning

confidence: 99%

“…Long-term exposure carried greater risks. Epidemiological studies have linked benzene, a known human carcinogen, to elevated occurrences of cancers, like leukemia, in exposed asphalt workers. , Some aromatic hydrocarbons released are suspected or proven carcinogens that may cause cancer through chronic inhalation even at trace concentrations …”

Section: Environmental and Health Impacts Of Asphalt Vocsmentioning

confidence: 99%

See 1 more Smart Citation

Emission Characteristics, Environmental Impacts, and Health Risks of Volatile Organic Compounds from Asphalt Materials: A State-of-the-Art Review

Li,

Qin,

Zhang

et al. 2024

Energy Fuels

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The emission of volatile organic compounds (VOCs) from asphalt during construction processes presents substantial risks to human health and the environment. To advance sustainable transportation development, this review offers a comprehensive study of the methods for characterization, release characteristics, influencing factors, release mechanisms, and environmental impacts of asphalt VOCs. At present, research has been conducted on characterization methods, component characteristics, influencing factors, and environmental and health risks. The findings indicate that gas chromatography–mass spectrometry is the most comprehensive method for characterizing asphalt VOCs. Asphalt VOCs mainly comprise alkanes, aromatics, and aliphatic hydrocarbons. Factors including the temperature, asphalt source, and ultraviolet radiation can all affect the release characteristics of asphalt VOCs. Elevated VOC levels contribute to the photochemical production of ozone and fine particulate matter, exacerbating air pollution and climate change. Additionally, specific asphalt VOCs, including benzene and polycyclic aromatic hydrocarbons, pose health risks to humans. While progress has been achieved in the current research, challenges persist in quantifying VOCs, assessing their environmental impacts and health risks, and implementing effective mitigation technologies. To address these challenges, future research should focus on establishing asphalt VOC fingerprints, quantitative methods, evaluation criteria, material innovation, optimization of construction processes, exposure assessment, and collaborative solution implementation.

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Section: Health Risks On Humansmentioning

confidence: 99%

Section: Environmental and Health Impacts Of Asphalt Vocsmentioning

confidence: 99%

Emission Characteristics, Environmental Impacts, and Health Risks of Volatile Organic Compounds from Asphalt Materials: A State-of-the-Art Review

Li,

Qin,

Zhang

et al. 2024

Energy Fuels

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“…Last but not least, as plastic road preparation requires higher temperatures than the melting point of plastic, and the incorporation of plastic particles generates hazardous fumes from both bitumen and plastics [ 174 ]. Until today, there are limited data on the real-time toxicological assessment of the total amount of fumes emitted from plastic-modified asphalt among roadworkers [ 175 , 176 ].…”

Section: Environmental and Human Health Adverse Effects Of Plastic Roadsmentioning

confidence: 99%

Plastic Roads in Asia: Current Implementations and Should It Be Considered?

et al. 2023

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The rapid economic and industrial growth experienced in the Asian region has significantly increased waste production, particularly single-use plastic. This surge in waste poses a significant challenge for these countries’ municipal solid waste management systems. Consequently, there is a pressing need for progressive and effective solutions to address the plastic waste issue. One promising initiative involves utilizing used plastic to produce components for asphalt pavement. The concept of plastic road technology has gained traction in Asia, with 32 countries displaying varying levels of interest, ranging from small-scale laboratory experiments to large-scale construction projects. However, as a relatively new technology, plastic road implementation requires continuous and comprehensive environmental and health risk assessments to ascertain its viability as a reliable green technology. This review paper presents the current findings and potential implementation of plastic-modified asphalt in Asian countries, with particular attention given to its environmental and human health impacts. While plastic asphalt roads hold promise in waste reduction, improved asphalt properties, and cost savings, it is imperative to thoroughly consider the environmental and health impacts, quality control measures, recycling limitations, and long-term performance of this road construction material. Further research and evaluation are needed to fully understand the viability and sustainability of plastic asphalt roads. This will enable a comprehensive assessment of its potential benefits and drawbacks, aiding in developing robust guidelines and standards for its implementation. By addressing these considerations, it will be possible to optimize the utilization of plastic waste in road construction and contribute to a greener and more sustainable future.

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“…The complex matrix of bitumen, while consisting predominantly of heavy oil fractions categorized as saturates, aromatics, resins, and asphaltenes, , can emit organic chemicals ranging from low-molecular-weight volatile organic compounds (VOCs) to high-molecular-weight polyaromatic hydrocarbons (PAHs). , Among these are compounds, which include certain PAHs , and VOCs ,− that can exhibit carcinogenesis. As bitumen is a natural product containing variations in its chemical composition, it has been reported that the levels of the emitted VOCs and PAHs can vary notably between samples. , The matrix of bitumen and its unique physiochemical properties have been explored in literature, while the microstructure of bitumen is often modeled as a colloidal structure.…”

Section: Introductionmentioning

confidence: 99%

Multimethod Approach to Investigate the Factors Influencing High-Temperature Fuming of Bitumen

Deller,

Grist,

Giustozzi

et al. 2024

ACS Omega

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Bitumen is heated at high temperatures during asphalt paving applications. In these circumstances, there is the possibility for fuming. These fumes can vary in intensity and, if significant, may attract complaints. The bitumen's chemical composition depends on the crude oil from which it originates. A tool to screen bitumen and evaluate its potential to release fumes would be highly beneficial. In this study, three methods have been employed to investigate a series of bitumen samples that were known to produce complaints by (a) quantifying benzene, toluene, ethylbenzene, and m, o, p-xylene (BTEX), (b) measuring the partition coefficients of these analytes, and (c) measuring the volatile mass of bitumen exposed to isothermal heating. It was found that the concentration of BTEX varied significantly between bitumen samples. The partition coefficients of these analytes are substantially the same between samples. Finally, the volatile mass of each sample varies significantly between samples, independent of bitumen grade or country of origin. These volatile masses correlate strongly with fuming complaints from bitumen and can be used as predictors of bitumen fuming risk.

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Analysis of possible carcinogenic compounds in recycled plastic modified asphalt

Cited by 15 publications

References 31 publications

Emission Characteristics, Environmental Impacts, and Health Risks of Volatile Organic Compounds from Asphalt Materials: A State-of-the-Art Review

Emission Characteristics, Environmental Impacts, and Health Risks of Volatile Organic Compounds from Asphalt Materials: A State-of-the-Art Review

Plastic Roads in Asia: Current Implementations and Should It Be Considered?

Multimethod Approach to Investigate the Factors Influencing High-Temperature Fuming of Bitumen

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