Format
Sort by
Items per page

Send to

Choose Destination

Search results

Items: 31

1.

A Phylogenetic and Functional Perspective on Volatile Organic Compound Production by Actinobacteria.

Choudoir M, Rossabi S, Gebert M, Helmig D, Fierer N.

mSystems. 2019 Mar 5;4(2). pii: e00295-18. doi: 10.1128/mSystems.00295-18. eCollection 2019 Mar-Apr.

2.

Corrections to "Ambient Nonmethane Hydrocarbon Levels Along Colorado's Northern Front Range: Acute and Chronic Health Risks".

McKenzie LM, Blair B, Hughes J, Allshouse WB, Blake NJ, Helmig D, Milmoe P, Halliday H, Blake DR, Adgate JL.

Environ Sci Technol. 2018 Dec 18;52(24):14568-14569. doi: 10.1021/acs.est.8b06179. Epub 2018 Dec 5. No abstract available.

PMID:
30516042
3.

Evaluation of the Community Multiscale Air Quality Model for Simulating Winter Ozone Formation in the Uinta Basin.

Matichuk R, Tonnesen G, Luecken D, Gilliam R, Napelenok SL, Baker KR, Schwede D, Murphy B, Helmig D, Lyman SN, Roselle S.

J Geophys Res Atmos. 2017 Dec 27;122(24):13545-13572. doi: 10.1002/2017JD027057.

4.

Ambient Nonmethane Hydrocarbon Levels Along Colorado's Northern Front Range: Acute and Chronic Health Risks.

McKenzie LM, Blair B, Hughes J, Allshouse WB, Blake NJ, Helmig D, Milmoe P, Halliday H, Blake DR, Adgate JL.

Environ Sci Technol. 2018 Apr 17;52(8):4514-4525. doi: 10.1021/acs.est.7b05983. Epub 2018 Apr 9. Erratum in: Environ Sci Technol. 2018 Dec 18;52(24):14568-14569.

PMID:
29584423
5.

Tundra uptake of atmospheric elemental mercury drives Arctic mercury pollution.

Obrist D, Agnan Y, Jiskra M, Olson CL, Colegrove DP, Hueber J, Moore CW, Sonke JE, Helmig D.

Nature. 2017 Jul 12;547(7662):201-204. doi: 10.1038/nature22997.

PMID:
28703199
6.

Investigation of the influence of transport from oil and natural gas regions on elevated ozone levels in the northern Colorado front range.

Evans JM, Helmig D.

J Air Waste Manag Assoc. 2017 Feb;67(2):196-211. doi: 10.1080/10962247.2016.1226989.

PMID:
27629587
7.

High winter ozone pollution from carbonyl photolysis in an oil and gas basin.

Edwards PM, Brown SS, Roberts JM, Ahmadov R, Banta RM, deGouw JA, Dubé WP, Field RA, Flynn JH, Gilman JB, Graus M, Helmig D, Koss A, Langford AO, Lefer BL, Lerner BM, Li R, Li SM, McKeen SA, Murphy SM, Parrish DD, Senff CJ, Soltis J, Stutz J, Sweeney C, Thompson CR, Trainer MK, Tsai C, Veres PR, Washenfelder RA, Warneke C, Wild RJ, Young CJ, Yuan B, Zamora R.

Nature. 2014 Oct 16;514(7522):351-4. doi: 10.1038/nature13767. Epub 2014 Oct 1.

PMID:
25274311
8.

Herbivory and climate interact serially to control monoterpene emissions from pinyon pine forests.

Trowbridge AM, Daly RW, Helmig D, Stoy PC, Monson RK.

Ecology. 2014 Jun;95(6):1591-603.

PMID:
25039223
9.

Highly elevated atmospheric levels of volatile organic compounds in the Uintah Basin, Utah.

Helmig D, Thompson CR, Evans J, Boylan P, Hueber J, Park JH.

Environ Sci Technol. 2014 May 6;48(9):4707-15. doi: 10.1021/es405046r. Epub 2014 Apr 14.

10.

International comparison of a hydrocarbon gas standard at the picomol per mol level.

Rhoderick GC, Duewer DL, Apel E, Baldan A, Hall B, Harling A, Helmig D, Heo GS, Hueber J, Kim ME, Kim YD, Miller B, Montzka S, Riemer D.

Anal Chem. 2014 Mar 4;86(5):2580-9. doi: 10.1021/ac403761u. Epub 2014 Feb 20.

PMID:
24555659
11.

Seasonal trends of biogenic terpene emissions.

Helmig D, Daly RW, Milford J, Guenther A.

Chemosphere. 2013 Sep;93(1):35-46. doi: 10.1016/j.chemosphere.2013.04.058. Epub 2013 Jul 1.

12.

Long-term decline of global atmospheric ethane concentrations and implications for methane.

Simpson IJ, Sulbaek Andersen MP, Meinardi S, Bruhwiler L, Blake NJ, Helmig D, Rowland FS, Blake DR.

Nature. 2012 Aug 23;488(7412):490-4. doi: 10.1038/nature11342.

PMID:
22914166
13.

Secondary organic aerosol from sesquiterpene and monoterpene emissions in the United States.

Sakulyanontvittaya T, Guenther A, Helmig D, Milford J, Wiedinmyer C.

Environ Sci Technol. 2008 Dec 1;42(23):8784-90.

PMID:
19192798
14.

Approaches for quantifying reactive and low-volatility biogenic organic compound emissions by vegetation enclosure techniques - part B: applications.

Ortega J, Helmig D, Daly RW, Tanner DM, Guenther AB, Herrick JD.

Chemosphere. 2008 Jun;72(3):365-80. doi: 10.1016/j.chemosphere.2008.02.054. Epub 2008 May 8.

PMID:
18471857
15.

Monoterpene and sesquiterpene emission estimates for the United States.

Sakulyanontvittaya T, Duhl T, Wiedinmyer C, Helmig D, Matsunaga S, Potosnak M, Milford J, Guenther A.

Environ Sci Technol. 2008 Mar 1;42(5):1623-9.

PMID:
18441812
16.

Sampling, storage, and analysis of C2-C7 non-methane hydrocarbons from the US National Oceanic and Atmospheric Administration Cooperative Air Sampling Network glass flasks.

Pollmann J, Helmig D, Hueber J, Plass-Dülmer C, Tans P.

J Chromatogr A. 2008 Apr 25;1188(2):75-87. doi: 10.1016/j.chroma.2008.02.059. Epub 2008 Mar 10.

PMID:
18355832
17.

Approaches for quantifying reactive and low-volatility biogenic organic compound emissions by vegetation enclosure techniques - part A.

Ortega J, Helmig D.

Chemosphere. 2008 Jun;72(3):343-64. doi: 10.1016/j.chemosphere.2007.11.020. Epub 2008 Feb 14. Review.

PMID:
18279913
18.

Sesquiterpene emissions from pine trees--identifications, emission rates and flux estimates for the contiguous United States.

Helmig D, Ortega J, Duhl T, Tanner D, Guenther A, Harley P, Wiedinmyer C, Milford J, Sakulyanontvittaya T.

Environ Sci Technol. 2007 Mar 1;41(5):1545-53.

PMID:
17396639
19.

Evaluation of solid adsorbent materials for cryogen-free trapping-gas chromatographic analysis of atmospheric C2-C6 non-methane hydrocarbons.

Pollmann J, Helmig D, Hueber J, Tanner D, Tans PP.

J Chromatogr A. 2006 Nov 17;1134(1-2):1-15. Epub 2006 Sep 27.

PMID:
17010353
20.

Gas chromatography system for the automated, unattended, and cryogen-free monitoring of C2 to C6 non-methane hydrocarbons in the remote troposphere.

Tanner D, Helmig D, Hueber J, Goldan P.

J Chromatogr A. 2006 Apr 7;1111(1):76-88. Epub 2006 Feb 21.

PMID:
16497314
21.

Analysis of atmospheric sesquiterpenes: sampling losses and mitigation of ozone interferences.

Pollmann J, Ortega J, Helmig D.

Environ Sci Technol. 2005 Dec 15;39(24):9620-9.

PMID:
16475343
22.

Characterization of a pressurized C5-C16 hydrocarbon gas calibration standard for air analysis.

Helmig D, Revermann T, Hall B.

Anal Chem. 2004 Nov 15;76(22):6528-34.

PMID:
15538772
23.

Calibration system and analytical considerations for quantitative sesquiterpene measurements in air.

Helmig D, Revermann T, Pollmann J, Kaltschmidt O, Jiménez Hernádez A, Bocquet F, David D.

J Chromatogr A. 2003 Jun 20;1002(1-2):193-211.

PMID:
12885090
24.
25.

Minimization of water vapor interference in the analysis of non-methane volatile organic compounds by solid adsorbent sampling.

Karbiwnyk CM, Mills CS, Helmig D, Birks JW.

J Chromatogr A. 2002 Jun 7;958(1-2):219-29.

PMID:
12134819
26.

Isoprene biosynthesis in Bacillus subtilis via the methylerythritol phosphate pathway.

Wagner WP, Helmig D, Fall R.

J Nat Prod. 2000 Jan;63(1):37-40.

PMID:
10650075
27.

Biogenic volatile organic compound emissions (BVOCs). II. Landscape flux potentials from three continental sites in the U.S.

Helmig D, Klinger LF, Guenther A, Vierling L, Geron C, Zimmerman P.

Chemosphere. 1999 Apr;38(9):2189-204.

PMID:
10101862
28.

Biogenic volatile organic compound emissions (BVOCs). I. Identifications from three continental sites in the U.S.

Helmig D, Klinger LF, Guenther A, Vierling L, Geron C, Zimmerman P.

Chemosphere. 1999 Apr;38(9):2163-87.

PMID:
10101861
29.

Leaf, branch, stand and landscape scale measurements of volatile organic compound fluxes from U.S. woodlands.

Guenther A, Greenberg J, Harley P, Helmig D, Klinger L, Vierling L, Zimmerman P, Geron C.

Tree Physiol. 1996 Jan-Feb;16(1_2):17-24.

PMID:
14871743
30.

Organic chemicals in the air at Whitaker's Forest/Sierra Nevada Mountains, California.

Helmig D, Arey J.

Sci Total Environ. 1992 Mar;112(2-3):233-50.

PMID:
1566045
31.

Supplemental Content

Loading ...
Support Center