Integrating input output analysis with risk assessment to evaluate the population risk of arsenic
Journal
Environmental Science and Technology
Journal Volume
46
Journal Issue
2
Pages
1104-1110
Date Issued
2012
Author(s)
Abstract
Multimedia and site-specific risk assessments (RA) of major sources releasing arsenic (As) were converted into sector-based risk coefficients, which were integrated with the Input Output Table (IO) to analyze the association between sector activities and health risks. The developed IO-RA framework is a valuable tool for unfolding the risk chain linking the receptors, exposure pathways, emission sources, and production and consumption activities associated with various industrial sectors. The enlarged decision space along the chain can then be considered in planning risk management strategies. This case study estimates that air emissions of As result in 1.54 carcinogenic cases. Export is the primary driving force and accounts for approximately 48% of the final demand that leads to population risks of As. The ranking of the contribution of the five sectors in terms of total population risks is as follows: electricity supply (1.06E+00), steelmaking (2.2 × 10 -1), cement kilns (1.50 × 10 -1), semiconductor manufacturing (6.34 × 10 -2) and incinerators (4.31 × 10 -2). The electricity supply, steelmaking industry, and cement kilns are the major sectors, not only because their emissions directly cause risk but also because they have a stronger influence on the risk generated by other sectors. ? 2011 American Chemical Society.
Other Subjects
Air emissions; Cement kiln; Decision space; Driving forces; Electricity supply; Emission sources; Exposure pathways; Industrial sector; Input output analysis; Input-Output table; Risk coefficient; Risk management strategies; Semiconductor manufacturing; Site-specific; Steel-making industries; Arsenic; Brickmaking; Cement industry; Cements; Industrial emissions; Kilns; Risk analysis; Risk assessment; Risk management; Semiconductor device manufacture; Steelmaking; Health risks; arsenic; arsenic; atmospheric pollution; decision making; health risk; industrial emission; input-output analysis; integrated approach; manufacturing; population structure; risk assessment; air analysis; air pollution; article; carcinogenicity; cement industry; conceptual framework; electricity; environmental exposure; hazard assessment; health hazard; human; input output analysis; metal industry; multimedia; population risk; risk assessment; risk management; semiconductor; Arsenic; Demography; Environmental Exposure; Environmental Monitoring; Environmental Pollutants; Humans; Industrial Waste; Industry; Models, Theoretical; Risk Assessment; Taiwan
Type
journal article