| Title: | Considering the air quality impacts of bioenergy crop production: a case study involving Arundo donax |
| Author(s): | Porter WC; Barsanti KC; Baughman EC; Rosenstiel TN; |
| Address: | "Department of Physics, Portland State University, Portland, Oregon 97201, United States. wporter@pdx.edu" |
| ISSN/ISBN: | 1520-5851 (Electronic) 0013-936X (Linking) |
| Abstract: | "The expanding production of bioenergy crops may impact regional air quality through the production of volatile organic compounds such as isoprene. To investigate the effects of isoprene-emitting crops on air quality, specifically ozone (O(3)) and secondary organic aerosol (SOA) formation, we performed a series of model runs using the Weather Research and Forecasting model with Chemistry (WRF/Chem) coupled with the Model of Emissions of Gases and Aerosols from Nature (MEGAN) simulating a proposed cropland conversion to the giant cane Arundo donax for biomass production. Cultivation of A. donax in the relatively clean air of northeastern Oregon resulted in an average increase in 8 h O(3) levels of 0.52 ppb, while SOA was largely unaffected (<+0.01 mug m(-3)). Conversions in U.S. regions with reduced air quality (eastern Texas and northern Illinois) resulted in average 8 h O(3) increases of 2.46 and 3.97 ppb, respectively, with daily increases up to 15 ppb in the Illinois case, and daytime SOA increases up to 0.57 mug m(-3). While cultivation of isoprene-emitting bioenergy crops may be appropriate at some scales and in some regions, other areas may experience increased O(3) and SOA, highlighting the need to consider isoprene emissions when evaluating potential regional impacts of bioenergy crop production" |
| Keywords: | "Air Pollutants/*analysis Air Pollution/*analysis Biomass Butadienes/*metabolism Environmental Monitoring Hemiterpenes/*metabolism Illinois Models, Biological Oregon Ozone/*analysis Pentanes/*metabolism Poaceae/*growth & development/metabolism Texas Volati;" |
| Notes: | "MedlinePorter, William C Barsanti, Kelley C Baughman, Eowyn C Rosenstiel, Todd N eng Research Support, Non-U.S. Gov't 2012/08/03 Environ Sci Technol. 2012 Sep 4; 46(17):9777-84. doi: 10.1021/es3013084. Epub 2012 Aug 22" |
