Volatile organic compounds and ozone in Rocky Mountain National Park during FRAPPÉ

Investigating types and sources of organic aerosol in Rocky Mountain National Park using aerosol mass spectrometry

The environmental impacts of atmospheric particles are highlighted in remote areas where visibility and ecosystem health can be degraded by even relatively low particle concentrations. Submicron particle size, composition, and source apportionment were explored at Rocky Mountain National Park using a High-Resolution Time-of-Flight Aerosol Mass Spectrometer. This summer campaign found low averag...

Plankton Population of Certain Lakes and Streams in the Rocky Mountain National Park, Colorado

Development of Ozone Reactivity Scales for Volatile Organic Compounds

Methods for ranking photochemical ozone formation reactivities of volatile organic compounds (VOCs) are discussed. Photochemical mechanisms for the atmospheric reactions of 118 VOCs were used to calculate their effects on ozone formation under various NOx conditions in model scenarios representing 39 different urban areas. Their effects on ozone were used to derive 18 different ozone reactivity...

Survival and productivity of a low-density black bear population in Rocky Mountain National Park, Colorado

Historically, Rocky Mountain National Park (RMNP) has supported a small black bear (Ursus americanus) population of low productivity. Increased visitor use of the park and development around its periphery could lead to a reduction in population viability of RMNP’s bear population or could increase the potential for human–bear conflict. Therefore, we investigated contemporary survival and produc...

Source characteristics of volatile organic compounds during high ozone episodes in Hong Kong, Southern China

1 School of Geography, Beijing Normal University, Beijing, China 2 School of Earth and Atmospheric Sciences, Georgia Inst. of Technology, Atlanta, GA, USA 3 Dept. of Civil and Structural Engineering, Hong Kong Polytechnic Univ., Hong Kong, China 4 Department of Chemistry, University of California, Irvine, CA, USA 5 Argonne National Laboratory, Argonne, IL, USA * now at: Nicholas School, Duke Un...