Grantee Research Project Results

2005 Progress Report: Guiding Future Air Quality Management in California: Sensitivity to Changing Climate

EPA Grant Number: R830964
Title: Guiding Future Air Quality Management in California: Sensitivity to Changing Climate
Investigators: Harley, Robert A.
Current Investigators: Harley, Robert A. , Goldstein, Allen H. , Steiner, Allison L , Cohen, Ronald , Tonse, Shaheen
Institution: University of California - Berkeley
EPA Project Officer: Chung, Serena
Project Period: March 22, 2003 through March 23, 2006 (Extended to March 22, 2009)
Project Period Covered by this Report: March 22, 2005 through March 23, 2006
Project Amount: $900,000
RFA: Assessing the Consequences of Global Change for Air Quality: Sensitivity of U.S. Air Quality to Climate Change and Future Global Impacts (2002) RFA Text | Recipients Lists
Research Category: Air Quality and Air Toxics , Air , Climate Change

Objective:

The overall objective of the research project is to assess the impact of changes in regional and global climate on air quality in California. We are using a combination of model and observation-based analyses to determine the effects on air quality of changes in temperature, moisture, and atmospheric mixing.

Progress Summary:

We have completed an analysis of climate and emissions-related perturbations and their effects on air quality in central California. We find the impacts vary depending on proximity to the Pacific Coast (where impacts of increased pollution at the inflow boundary are greatest), and on preexisting NO_x levels (NO_x saturated regions in central California appear to be most sensitive to climate-related changes). We also completed work on an observationally based study of the temperature sensitivity of anthropogenic volatile organic compound (VOC) emissions: the role of temperature in increasing fuel evaporation was highlighted in this analysis. The increased evaporative signal was apparent in correlated speciated VOC and temperature measurements, as they varied by time of day and from day to day.

Future Activities:

We will continue to study the effects of climate and emissions changes/variability on the reactivity of VOCs and on the distribution (speciation) of oxidized forms of nitrogen.

Journal Articles on this Report : 1 Displayed | Download in RIS Format

Publications Views
Other project views:	All 27 publications	8 publications in selected types	All 8 journal articles

Publications
Type	Citation	Project	Document Sources
Journal Article	Rubin JI, Kean AJ, Harley RA, Millet DB, Goldstein AH. Temperature dependence of volatile organic compound evaporative emissions from motor vehicles. Journal of Geophysical Research--Atmospheres 2006;111(D3):D03305 (7 pp.).	R830964 (2005) R830964 (2007) R830964 (Final)	Full-text: AGU-Full Text HTML Exit Other: AGU-Full Text PDF Exit

Supplemental Keywords:

tropospheric ozone, global climate, California, CA, atmospheric chemistry, modeling, biogenic emissions, mobile source emissions,, RFA, Air, Scientific Discipline, Ecosystem Protection/Environmental Exposure & Risk, Chemistry, particulate matter, Air Quality, Atmosphere, tropospheric ozone, Monitoring/Modeling, Air Pollution Effects, Atmospheric Sciences, Air Pollutants, climate change, Environmental Monitoring, aerosols, atmospheric dispersion models, biogenic ozone precursors, Global Climate Change, ambient aerosol, airborne aerosols, air sampling, atmospheric models, global change, aerosol formation, atmospheric chemistry, atmospheric transport, ecological models, climate models, environmental measurement, climate variability, air pollution models, atmospheric monitoring, California, atmospheric aerosol particles, environmental stress, air quality model, meteorology, ozone, ambient air pollution, air quality models, atmospheric particulate matter, greenhouse gases, climatic influence, anthropogenic stress

Relevant Websites:

None.

Progress and Final Reports:

Original Abstract

The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoints of the principal investigator and may not represent the views and policies of ORD and EPA. Conclusions drawn by the principal investigators have not been reviewed by the Agency.