@article{
 title = {Observations of isoprene chemistry and its role in ozone production at a semirural site during the 1995 Southern Oxidants Study},
 type = {article},
 year = {1998},
 keywords = {1995 Southern Oxidants Study,Air pollution,Aldehydes,Atmospheric chemistry,Atmospheric composition,Daytime,Downward mixing,Intermediate forested land,Isoprene chemistry,Isoprene nitrates,Methacrolein,Methyl vinyl ketone,NO/sub x/-rich urban plumes,O/sub 3/,Organic compounds,Oxidation,Oxidation products,Ozone,Ozone production,Photochemically processed air,Photochemistry,Production,Semirural site,Surface site,Urban emissions,Urban plumes,ad 1995,macr,mvk},
 pages = {22425-22435},
 volume = {103},
 id = {1ffd1942-707d-30e9-b819-65951be7bbd7},
 created = {2015-02-12T14:34:48.000Z},
 file_attached = {false},
 profile_id = {81af7548-db00-3f00-bfa0-1774347c59e1},
 group_id = {63e349d6-2c70-3938-9e67-2f6483f6cbab},
 last_modified = {2015-02-12T20:24:00.000Z},
 read = {false},
 starred = {false},
 authored = {false},
 confirmed = {true},
 hidden = {false},
 source_type = {Journal Article},
 notes = {<m:note>Article<m:linebreak/>American Geophys. Union</m:note>},
 abstract = {Isoprene and its oxidation products, methyl vinyl ketone (MVK) and methacrolein (MACR), were measured in a semirural environment that was occasionally heavily impacted by urban emissions. At this site, isoprene was the most important hydrocarbon in terms of k/sub OH/.[hydrocarbon], but the aldehydes HCHO and CH/sub 3/CHO also appear to be very important. The local isoprene photochemistry appears to be occasionally enhanced in NO/sub x/-rich urban plumes that are advected to the site over intermediate forested land. When O/sub 3/ was being rapidly produced in urban plumes advected to this forested site, isoprene was found to contribute approximately=28% of the total ozone production. We observe that many of the peaks in isoprene oxidation products at this surface site arise from downward mixing of more photochemically processed air aloft, as the nocturnal inversion breaks up in the morning. We estimate that, in the daytime, typically 1-2% of the NO/sub y/ at this NO/sub x/-rich site is composed of isoprene nitrates.},
 bibtype = {article},
 author = {Starn, T K and Shepson, P B and Bertman, S B and White, J S and Splawn, B G and Riemer, D D and Zika, R G and Olszyna, K},
 journal = {Journal of Geophysical Research},
 number = {D17}
}

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Union</m:note>","abstract":"Isoprene and its oxidation products, methyl vinyl ketone (MVK) and methacrolein (MACR), were measured in a semirural environment that was occasionally heavily impacted by urban emissions. At this site, isoprene was the most important hydrocarbon in terms of k/sub OH/.[hydrocarbon], but the aldehydes HCHO and CH/sub 3/CHO also appear to be very important. The local isoprene photochemistry appears to be occasionally enhanced in NO/sub x/-rich urban plumes that are advected to the site over intermediate forested land. When O/sub 3/ was being rapidly produced in urban plumes advected to this forested site, isoprene was found to contribute approximately=28% of the total ozone production. We observe that many of the peaks in isoprene oxidation products at this surface site arise from downward mixing of more photochemically processed air aloft, as the nocturnal inversion breaks up in the morning. We estimate that, in the daytime, typically 1-2% of the NO/sub y/ at this NO/sub x/-rich site is composed of isoprene nitrates.","bibtype":"article","author":"Starn, T K and Shepson, P B and Bertman, S B and White, J S and Splawn, B G and Riemer, D D and Zika, R G and Olszyna, K","journal":"Journal of Geophysical Research","number":"D17","bibtex":"@article{\n title = {Observations of isoprene chemistry and its role in ozone production at a semirural site during the 1995 Southern Oxidants Study},\n type = {article},\n year = {1998},\n keywords = {1995 Southern Oxidants Study,Air pollution,Aldehydes,Atmospheric chemistry,Atmospheric composition,Daytime,Downward mixing,Intermediate forested land,Isoprene chemistry,Isoprene nitrates,Methacrolein,Methyl vinyl ketone,NO/sub x/-rich urban plumes,O/sub 3/,Organic compounds,Oxidation,Oxidation products,Ozone,Ozone production,Photochemically processed air,Photochemistry,Production,Semirural site,Surface site,Urban emissions,Urban plumes,ad 1995,macr,mvk},\n pages = {22425-22435},\n volume = {103},\n id = {1ffd1942-707d-30e9-b819-65951be7bbd7},\n created = {2015-02-12T14:34:48.000Z},\n file_attached = {false},\n profile_id = {81af7548-db00-3f00-bfa0-1774347c59e1},\n group_id = {63e349d6-2c70-3938-9e67-2f6483f6cbab},\n last_modified = {2015-02-12T20:24:00.000Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n source_type = {Journal Article},\n notes = {<m:note>Article<m:linebreak/>American Geophys. Union</m:note>},\n abstract = {Isoprene and its oxidation products, methyl vinyl ketone (MVK) and methacrolein (MACR), were measured in a semirural environment that was occasionally heavily impacted by urban emissions. At this site, isoprene was the most important hydrocarbon in terms of k/sub OH/.[hydrocarbon], but the aldehydes HCHO and CH/sub 3/CHO also appear to be very important. The local isoprene photochemistry appears to be occasionally enhanced in NO/sub x/-rich urban plumes that are advected to the site over intermediate forested land. When O/sub 3/ was being rapidly produced in urban plumes advected to this forested site, isoprene was found to contribute approximately=28% of the total ozone production. We observe that many of the peaks in isoprene oxidation products at this surface site arise from downward mixing of more photochemically processed air aloft, as the nocturnal inversion breaks up in the morning. 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