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A Novel COSHH Risk Ranking Algorithm for Hazardous Substance Control in Construction and Engineering Workplaces


Authors : Tekaya Akinleye; Onuh Matthew Ijiga

Volume/Issue : Volume 11 - 2026, Issue 7 - July


Google Scholar : https://tinyurl.com/568pvscm

Scribd : https://tinyurl.com/3u6khh6x

DOI : https://doi.org/10.38124/ijisrt/26jul1158

Note : A published paper may take 4-5 working days from the publication date to appear in PlumX Metrics, Semantic Scholar, and ResearchGate.


Abstract : Construction and engineering workers encounter hazardous substances including respirable crystalline silica, welding fumes, asbestos fibres, solvents, cement dust, diesel exhaust, isocyanates, and metal particulates. Conventional Control of Substances Hazardous to Health assessments commonly depend on qualitative risk matrices that may inadequately represent cumulative exposure, control deterioration, measurement uncertainty, and interactions among multiple hazards. This study proposes the Construction Hazardous Substance Risk Intelligence and Ranking Algorithm (CHS-RIRA), a novel hybrid model integrating toxicological severity, exposure concentration, frequency, duration, volatility or dustiness, occupational exposure-limit exceedance, control effectiveness, worker susceptibility, and uncertainty.

Keywords : COSHH Risk Ranking; Hazardous Substances; Exposure Control; Construction Workplaces; Engineering Safety.

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Construction and engineering workers encounter hazardous substances including respirable crystalline silica, welding fumes, asbestos fibres, solvents, cement dust, diesel exhaust, isocyanates, and metal particulates. Conventional Control of Substances Hazardous to Health assessments commonly depend on qualitative risk matrices that may inadequately represent cumulative exposure, control deterioration, measurement uncertainty, and interactions among multiple hazards. This study proposes the Construction Hazardous Substance Risk Intelligence and Ranking Algorithm (CHS-RIRA), a novel hybrid model integrating toxicological severity, exposure concentration, frequency, duration, volatility or dustiness, occupational exposure-limit exceedance, control effectiveness, worker susceptibility, and uncertainty.

Keywords : COSHH Risk Ranking; Hazardous Substances; Exposure Control; Construction Workplaces; Engineering Safety.

Paper Submission Last Date
31 - July - 2026

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