Intake Fraction for Particulate Matter: Recommendations for Life Cycle Impact Assessment
- 12 May 2011
- journal article
- research article
- Published by American Chemical Society (ACS) in Environmental Science & Technology
- Vol. 45 (11), 4808-4816
- https://doi.org/10.1021/es103563z
Abstract
Particulate matter (PM) is a significant contributor to death and disease globally. This paper summarizes the work of an international expert group on the integration of human exposure to PM into life cycle impact assessment (LCIA), within the UNEP/SETAC Life Cycle Initiative. We review literature-derived intake fraction values (the fraction of emissions that are inhaled), based on emission release height and “archetypal” environment (indoor versus outdoor; urban, rural, or remote locations). Recommended intake fraction values are provided for primary PM10–2.5 (coarse particles), primary PM2.5 (fine particles), and secondary PM2.5 from SO2, NOx, and NH3. Intake fraction values vary by orders of magnitude among conditions considered. For outdoor primary PM2.5, representative intake fraction values (units: milligrams inhaled per kilogram emitted) for urban, rural, and remote areas, respectively, are 44, 3.8, and 0.1 for ground-level emissions, versus 26, 2.6, and 0.1 for an emission-weighted stack height. For outdoor secondary PM, source location and source characteristics typically have only a minor influence on the magnitude of the intake fraction (exception: intake fraction values can be an order of magnitude lower for remote-location emission than for other locations). Outdoor secondary PM2.5 intake fractions averaged over respective locations and stack heights are 0.89 (from SO2), 0.18 (NOx), and 1.7 (NH3). Estimated average intake fractions are greater for primary PM10–2.5 than for primary PM2.5 (21 versus 15), owing in part to differences in average emission height (lower, and therefore closer to people, for PM10–2.5 than PM2.5). For indoor emissions, typical intake fraction values are ∼1000–7000. This paper aims to provide as complete and consistent an archetype framework as possible, given current understanding of each pollutant. Values presented here facilitate incorporating regional impacts into LCIA for human health damage from PM.Keywords
This publication has 52 references indexed in Scilit:
- Health and climate benefits of cookstove replacement optionsEnergy Policy, 2011
- Spatial Distribution of Diesel Transit Bus Emissions and Urban Populations: Implications of Coincidence and Scale on ExposureEnvironmental Science & Technology, 2010
- Fine-Particulate Air Pollution and Life Expectancy in the United StatesNew England Journal of Medicine, 2009
- Indoor carbon monoxide and PM2.5concentrations by cooking fuels in PakistanIndoor Air, 2009
- Evaluating Efficiency‐Equality Tradeoffs for Mobile Source Control Strategies in an Urban AreaRisk Analysis, 2008
- Traffic-Related Air Pollution and Asthma Onset in Children: A Prospective Cohort Study with Individual Exposure MeasurementEnvironmental Health Perspectives, 2008
- The Effect of Dose and Timing of Dose on the Association between Airborne Particles and SurvivalEnvironmental Health Perspectives, 2008
- Spatial Differentiation in Life Cycle Impact Assessment: A decade of method development to increase the environmental realism of LCIAThe International Journal of Life Cycle Assessment, 2006
- IMPACT 2002+: A new life cycle impact assessment methodologyThe International Journal of Life Cycle Assessment, 2003
- Association of fine particulate matter from different sources with daily mortality in six U.S. cities.Environmental Health Perspectives, 2000