What does this research mean for the field?

Identifiable gasoline residues can be successfully recovered from both natural (cotton) and synthetic (polyester) porous substrates for up to 16 hours despite exposure to aggressive tropical weathering conditions. Novelty: ClaimNovelty.CONFIRMATORY. Consensus alignment: ConsensusAlignment.NEUTRAL.

August 30, 2026Environmental Forensics

Chemical Profiling and Persistence of Gasoline Residues on Natural and Synthetic Porous Substrates under Tropical Weathering Conditions

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Authors

NHNoor Hazfalinda Hamzah KOKhairul Osman SPSuvitraa Paramasivam

Discussion

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Overview

Experimental study reveals gasoline residue persistence on cotton and polyester across 16 hours of tropical weathering, indicating viable evidence collection windows for arson investigations.

Key Points

To evaluate the retention and chemical profiling of gasoline residues on natural and synthetic porous substrates exposed to outdoor tropical weathering conditions.
Controlled ignition and suppression were performed on natural (100% cotton) and synthetic (100% polyester) substrates, followed by outdoor tropical weathering in Malaysia for durations between 30 and 960 minutes.
Residues were extracted using passive headspace adsorption and analyzed by gas chromatography–mass spectrometry (GC–MS) according to ASTM E1618-19 standards and matched against the NIST library (≥85% match quality).
Nine diagnostic target compounds, including critical alkylbenzenes and indane, were consistently identified across all weathering intervals up to 960 minutes (16 hours).
Both 100% cotton and 100% polyester substrates maintained identifiable gasoline residues despite prolonged exposure to high ambient heat and humidity.

Cite This Study

Hamzah et al. (2026) studied this question.

synapsesocial.com/papers/6a93f1176c1a8fb52e79dcdc https://doi.org/10.1080/15275922.2026.2722928

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August 30, 2026Environmental Forensics

Chemical Profiling and Persistence of Gasoline Residues on Natural and Synthetic Porous Substrates under Tropical Weathering Conditions

View Full Paper

Ask AI

Bookmark

Authors

NHNoor Hazfalinda Hamzah KOKhairul Osman SPSuvitraa Paramasivam

Discussion

Member takes

Overview

Experimental study reveals gasoline residue persistence on cotton and polyester across 16 hours of tropical weathering, indicating viable evidence collection windows for arson investigations.

Key Points

To evaluate the retention and chemical profiling of gasoline residues on natural and synthetic porous substrates exposed to outdoor tropical weathering conditions.
Controlled ignition and suppression were performed on natural (100% cotton) and synthetic (100% polyester) substrates, followed by outdoor tropical weathering in Malaysia for durations between 30 and 960 minutes.
Residues were extracted using passive headspace adsorption and analyzed by gas chromatography–mass spectrometry (GC–MS) according to ASTM E1618-19 standards and matched against the NIST library (≥85% match quality).
Nine diagnostic target compounds, including critical alkylbenzenes and indane, were consistently identified across all weathering intervals up to 960 minutes (16 hours).
Both 100% cotton and 100% polyester substrates maintained identifiable gasoline residues despite prolonged exposure to high ambient heat and humidity.

Cite This Study

Hamzah et al. (2026) studied this question.

synapsesocial.com/papers/6a93f1176c1a8fb52e79dcdc https://doi.org/10.1080/15275922.2026.2722928

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