B. Bohn

Publication List Details

Period

1980 - 2009

Number

91

Co-Authors

Atmospheric OH reactivities in the Pearl River Delta – China in summer 2006: measurement and model results (2009)

S. Lou, F. Holland, F. Rohrer, K. Lu, B. Bohn, T. Brauers, ...

Total atmospheric OH reactivities (<i>k</i><sub>OH</sub>) have been measured as reciprocal OH lifetimes by a newly developed instrument at a rural site in the densely...

Influence of clouds on the spectral actinic flux density in the lower troposphere (INSPECTRO): overview of the field campaigns (2008)

Thiel, S., Ammannato, L., Bais, A., Bandy, B., Blumthaler, M., Bohn, B., ...

This version, Atmospheric Chemistry and Physics, 2008, 8,(6),1789-1812 and can be accessed at http://www.atmos-chem-phys.net/8/1789/2008/acp-8-1789-2008.html

Photolysis frequency measurement techniques: results of a comparison within the ACCENT project (2008)

Bohn, B., Corlett, G. K., Gillmann, M., Sanghavi, S., Stange, G., Tensing, E., ...

An intercomparison of different radiometric techniques measuring atmospheric photolysis frequencies j(NO2), j(HCHO) and j(O1D) was carried out in a two-week field campaign in June 2005 at Jülich,...

Influence of clouds on the spectral actinic flux density in the lower troposphere (INSPECTRO): overview of the field campaigns (2008)

Thiel, S., Ammannato, L., Bais, A., Bandy, B., Blumthaler, M., Bohn, B., ...

Ultraviolet radiation is the key factor driving tropospheric photochemistry. It is strongly modulated by clouds and aerosols. A quantitative understanding of the radiation field and its effect on...

Photolysis frequency measurement techniques: results of a comparison within the ACCENT project (2008)

Bohn, B., Corlett, G. K., Gillmann, M., Sanghavi, S., Stange, G., Tensing, E., ...

An intercomparison of different radiometric techniques measuring atmospheric photolysis frequencies j(NO2), j(HCHO) and j(O1D) was carried out in a two-week field campaign in June 2005 at Jülich,...

Influence of clouds on the spectral actinic flux density in the lower troposphere (INSPECTRO): overview of the field campaigns (2008)

Thiel, S., Ammannato, L., Bais, A., Bandy, B., Blumthaler, M., Bohn, B., ...

Ultraviolet radiation is the key factor driving tropospheric photochemistry. It is strongly modulated by clouds and aerosols. A quantitative understanding of the radiation field and its effect on...

Influence of clouds on the spectral actinic flux in the lower troposphere (INSPECTRO): overview of the field campaigns (2008)

Thiel, S., Ammanato, L., Bais, A., Bandy, B., Blumthaler, M., Bohn, B., ...

Ultraviolet radiation is the key factor driving tropospheric photochemistry. It is strongly modulated by clouds and aerosols. A quantitative understanding of the radiation field and its effect on...

Influence of clouds on the spectral actinic flux density in the lower troposphere (INSPECTRO): overview of the field campaigns (2008)

S. Thiel, L. Ammannato, A. Bais, B. Bandy, M. Blumthaler, B. Bohn, ...

Ultraviolet radiation is the key factor driving tropospheric photochemistry. It is strongly modulated by clouds and aerosols. A quantitative understanding of the radiation field and its effect on...

Photolysis frequency measurement techniques: results of a comparison within the ACCENT project (2008)

B. Bohn, G. K. Corlett, M. Gillmann, S. Sanghavi, G. Stange, E. Tensing, ...

An intercomparison of different radiometric techniques measuring atmospheric photolysis frequencies <i>j</i>(NO<sub>2</sub>), <i>j</i>(HCHO) and...

Photolysis frequency measurement techniques: results of a comparison within the ACCENT project (2008)

B. Bohn, G. K. Corlett, M. Gillmann, S. Sanghavi, G. Stange, E. Tensing, ...

An intercomparison of different radiometric techniques measuring atmospheric photolysis frequencies <I>j</I>(NO<sub>2</sub>), <I>j</I>(HCHO) and...

Influence of clouds on the spectral actinic flux density in the lower troposphere (INSPECTRO): overview of the field campaigns (2007)

Thiel, S., Ammannato, L., Bais, A., Bandy, B., Blumthaler, M., Bohn, B., ...

Ultraviolet radiation is the key factor driving tropospheric photochemistry. It is strongly modulated by clouds and aerosols. A quantitative understanding of the radiation field and its effect on...

Influence of clouds on the spectral actinic flux density in the lower troposphere (INSPECTRO): overview of the field campaigns (2007)

Thiel, S., Ammannato, L., Bais, A., Bandy, B., Blumthaler, M., Bohn, B., ...

Ultraviolet radiation is the key factor driving tropospheric photochemistry. It is strongly modulated by clouds and aerosols. A quantitative understanding of the radiation field and its effect on...

Light induced conversion of nitrogen dioxide into nitrous acid on submicron humic acid aerosol (2007)

Stemmler, K., Ndour, M., Elshorbany, Y., Kleffmann, J., D'Anna, B., George, C., ...

The interactions of aerosols consisting of humic acids with gaseous nitrogen dioxide (NO2) were investigated under different light conditions in aerosol flow tube experiments at ambient pressure and...

Wildfire particulate matter in Europe during summer 2003: meso-scale modeling of smoke emissions, transport and radiative effects (2007)

Hodzic, A., Madronich, S., Bohn, B., Massie, S., Menut, L., Wiedinmyer, C.

The present study investigates effects of wildfire emissions on air quality in Europe during an intense fire season that occurred in summer 2003. A meso-scale chemistry transport model CHIMERE is...

Wildfire particulate matter in Europe during summer 2003: meso-scale modeling of smoke emissions, transport and radiative effects (2007)

Hodzic, A., Madronich, S., Bohn, B., Massie, S., Menut, L., Wiedinmyer, C.

The present study investigates effects of wildfire emissions on air quality in Europe during an intense fire season that occurred in summer 2003. A meso-scale chemistry transport model CHIMERE is...

Light induced conversion of nitrogen dioxide into nitrous acid on submicron humic acid aerosol (2007)

Stemmler, K., Ammann, M., Elshorbany, Y., Kleffmann, J., Ndour, M., D'Anna, B., ...

The interactions of aerosols consisting of humic acids with gaseous nitrogen dioxide (NO2) were investigated under different light conditions in aerosol flow tube experiments at ambient pressure and...

Light induced conversion of nitrogen dioxide into nitrous acid on submicron humic acid aerosol (2007)

Stemmler, K., Ndour, M., Elshorbany, Y., Kleffmann, J., D'Anna, B., George, C., ...

The interactions of aerosols consisting of humic acids with gaseous nitrogen dioxide (NO2) were investigated under different light conditions in aerosol flow tube experiments at ambient pressure and...

Wildfire particulate matter in Europe during summer 2003: meso-scale modeling of smoke emissions, transport and radiative effects (2007)

Hodzic, A., Madronich, S., Bohn, B., Massie, S., Menut, L., Wiedinmyer, C.

The present study investigates effects of wildfire emissions on air quality in Europe during an intense fire season that occurred in summer 2003. A meso-scale chemistry transport model CHIMERE is...

Wildfire particulate matter in Europe during summer 2003: meso-scale modeling of smoke emissions, transport and radiative effects (2007)

Hodzic, A., Madronich, S., Bohn, B., Massie, S., Menut, L., Wiedinmyer, C.

The present study investigates effects of wildfire emissions on air quality in Europe during an intense fire season that occurred in summer 2003. A meso-scale chemistry transport model CHIMERE is...

Light induced conversion of nitrogen dioxide into nitrous acid on submicron humic acid aerosol (2007)

Stemmler, K., Ammann, M., Elshorbany, Y., Kleffmann, J., Ndour, M., D'Anna, B., ...

The interactions of aerosols consisting of humic acids with gaseous nitrogen dioxide (NO2) were investigated under different light conditions in aerosol flow tube experiments at ambient pressure and...

submicron humic acid aerosol (2007)

K. Stemmler, M. Ndour, Y. Elshorbany, J. Kleffmann, C. George, B. Bohn, ...

Abstract. The interactions of aerosols consisting of humic acids with gaseous nitrogen dioxide (NO2) were investigated under different light conditions in aerosol flow tube experiments at ambient...

Wildfire particulate matter in Europe during summer 2003: meso-scale modeling of smoke emissions, transport and radiative effects (2007)

A. Hodzic, S. Madronich, B. Bohn, S. Massie, L. Menut, C. Wiedinmyer

The present study investigates effects of wildfire emissions on air quality in Europe during an intense fire season that occurred in summer 2003. A meso-scale chemistry transport model CHIMERE is...

Light induced conversion of nitrogen dioxide into nitrous acid on submicron humic acid aerosol (2007)

K. Stemmler, M. Ndour, Y. Elshorbany, J. Kleffmann, B. D'Anna, C. George, ...

The interactions of aerosols consisting of humic acids with gaseous nitrogen dioxide (NO<sub>2</sub>) were investigated under different light conditions in aerosol flow tube experiments...

Light induced conversion of nitrogen dioxide into nitrous acid on submicron humic acid aerosol (2007)

K. Stemmler, M. Ammann, Y. Elshorbany, J. Kleffmann, M. Ndour, B. D'Anna, ...

The interactions of aerosols consisting of humic acids with gaseous nitrogen dioxide (NO<sub>2</sub>) were investigated under different light conditions in aerosol flow tube experiments...

Wildfire particulate matter in Europe during summer 2003: meso-scale modeling of smoke emissions, transport and radiative effects (2007)

A. Hodzic, S. Madronich, B. Bohn, S. Massie, L. Menut, C. Wiedinmyer

The present study investigates effects of wildfire emissions on air quality in Europe during an intense fire season that occurred in summer 2003. A meso-scale chemistry transport model CHIMERE is...

Influence of clouds on the spectral actinic flux density in the lower troposphere (INSPECTRO): overview of the field campaigns (2007)

S. Thiel, L. Ammannato, A. Bais, B. Bandy, M. Blumthaler, B. Bohn, ...

Ultraviolet radiation is the key factor driving tropospheric photochemistry. It is strongly modulated by clouds and aerosols. A quantitative understanding of the radiation field and its effect on...

Model-aided radiometric determination of photolysis frequencies in a sunlit atmosphere simulation chamber (2005)

B. Bohn, H. Zilken

In this work diurnal and seasonal variations of mean photolysis frequencies for the atmosphere simulation chamber SAPHIR at Forschungszentrum Jülich are calculated. SAPHIR has a complex...

Characterisation of the photolytic HONO-source in the atmosphere simulation chamber SAPHIR (2005)

F. Rohrer, B. Bohn, T. Brauers, D. Brüning, A. Wahner, ...

HONO formation has been proposed as an important OH radical source in simulation chambers for more than two decades. Besides the heterogeneous HONO formation by the dark reaction of NO2 and adsorbed...

Actinometric measurements of NO2 photolysis frequencies in the atmosphere simulation chamber SAPHIR (2005)

B. Bohn, F. Rohrer, T. Brauers, A. Wahner

The simulation chamber SAPHIR at Forschungszentrum Jülich has UV permeable teflon walls facilitating atmospheric photochemistry studies under the influence of natural sunlight. Because the...

Characterisation of the photolytic HONO-source in the atmosphere simulation chamber SAPHIR (2005)

Rohrer, F., Bohn, B., Brauers, T., Brüning, D., Wahner, A., ...

HONO formation has been proposed as an important OH radical source in simulation chambers for more than two decades. Besides the heterogeneous HONO formation by the dark reaction of NO2 and adsorbed...

Actinometric measurements of NO2 photolysis frequencies in the atmosphere simulation chamber SAPHIR (2005)

Bohn, B., Rohrer, F., Brauers, T., Wahner, A.

The simulation chamber SAPHIR at Forschungszentrum Jülich has UV permeable teflon walls facilitating atmospheric photochemistry studies under the influence of natural sunlight. Because the internal...

Model-aided radiometric determination of photolysis frequencies in a sunlit atmosphere simulation chamber (2005)

Bohn, B., Zilken, H.

In this work diurnal and seasonal variations of mean photolysis frequencies for the atmosphere simulation chamber SAPHIR at Forschungszentrum Jülich are calculated. SAPHIR has a complex construction...

Characterisation of the photolytic HONO-source in the atmosphere simulation chamber SAPHIR (2005)

Rohrer, F., Bohn, B., Brauers, T., Brüning, D., Wahner, A., ...

HONO formation has been proposed as an important OH radical source in simulation chambers for more than two decades. Besides the heterogeneous HONO formation by the dark reaction of NO2 and adsorbed...

Actinometric measurements of NO2 photolysis frequencies in the atmosphere simulation chamber SAPHIR (2005)

Bohn, B., Rohrer, F., Brauers, T., Wahner, A.

The simulation chamber SAPHIR at Forschungszentrum Jülich has UV permeable teflon walls facilitating atmospheric photochemistry studies under the influence of natural sunlight. Because the internal...

Model-aided radiometric determination of photolysis frequencies in a sunlit atmosphere simulation chamber (2005)

Bohn, B., Zilken, H.

In this work diurnal and seasonal variations of mean photolysis frequencies for the atmosphere simulation chamber SAPHIR at Forschungszentrum Jülich are calculated. SAPHIR has a complex construction...

Actinometric measurements of NO2 photolysis frequencies in the atmosphere simulation chamber SAPHIR (2004)

Bohn, B., Rohrer, F., Brauers, T., Wahner, A.

The simulation chamber SAPHIR at Forschungszentrum Jülich has UV permeable teflon walls facilitating atmospheric photochemistry studies under the influence of natural sunlight. Because the internal...

Characterisation of the photolytic HONO-source in the atmosphere simulation chamber SAPHIR (2004)

Rohrer, F., Bohn, B., Brauers, T., Brüning, D., Wahner, A., ...

HONO formation has been proposed as an important OH radical source in simulation chambers for more than two decades. Besides the heterogeneous HONO formation by the dark reaction of NO2 and adsorbed...

Model-aided radiometric determination of photolysis frequencies in a sunlit atmosphere simulation chamber (2004)

Bohn, B., Zilken, H.

In this work diurnal and seasonal variations of mean photolysis frequencies for the atmosphere simulation chamber SAPHIR at Forschungszentrum Jülich are calculated. SAPHIR has a complex construction...

Actinometric measurements of NO2 photolysis frequencies in the atmosphere simulation chamber SAPHIR (2004)

Bohn, B., Rohrer, F., Brauers, T., Wahner, A.

The simulation chamber SAPHIR at Forschungszentrum Jülich has UV permeable teflon walls facilitating atmospheric photochemistry studies under the influence of natural sunlight. Because the internal...

Characterisation of the photolytic HONO-source in the atmosphere simulation chamber SAPHIR (2004)

Rohrer, F., Bohn, B., Brauers, T., Brüning, D., Wahner, A., ...

HONO formation has been proposed as an important OH radical source in simulation chambers for more than two decades. Besides the heterogeneous HONO formation by the dark reaction of NO2 and adsorbed...

Model-aided radiometric determination of photolysis frequencies in a sunlit atmosphere simulation chamber (2004)

Bohn, B., Zilken, H.

In this work diurnal and seasonal variations of mean photolysis frequencies for the atmosphere simulation chamber SAPHIR at Forschungszentrum Jülich are calculated. SAPHIR has a complex construction...

Model-aided radiometric determination of photolysis frequencies in a sunlit atmosphere simulation chamber (2004)

B. Bohn, H. Zilken

In this work diurnal and seasonal variations of mean photolysis frequencies for the atmosphere simulation chamber SAPHIR at Forschungszentrum Jülich are calculated. SAPHIR has a complex...

Characterisation of the photolytic HONO-source in the atmosphere simulation chamber SAPHIR (2004)

F. Rohrer, B. Bohn, T. Brauers, D. Brüning, A. Wahner, ...

HONO formation has been proposed as an important OH radical source in simulation chambers for more than two decades. Besides the heterogeneous HONO formation by the dark reaction of...

Actinometric measurements of NO2 photolysis frequencies in the atmosphere simulation chamber SAPHIR (2004)

B. Bohn, F. Rohrer, T. Brauers, A. Wahner

The simulation chamber SAPHIR at Forschungszentrum Jülich has UV permeable teflon walls facilitating atmospheric photochemistry studies under the influence of natural sunlight. Because the...

Chemical mechanism development: Laboratory studies and model applications (2002)

Geiger, H., Barnes, I., Becker, K.H., Bohn, B., Brauers, T., Donner, B., ...

Within the German Troposheric Research Programme (TFS) numerous kinetic and mechanistic studies on the tropospheric reaction / degradation of the following reactants were carried out: - oxygenated...

OH-initiated degradation mechanisms of aromatics and photooxidant-forming cycles of ROx: OH-Benzene, OH-Toluene and OH-Toluene-d8: A contribution to CMD-Gas phase processes. Workshop of the EUROTRAC-2 Subproject Chemical Mechanism Development (2000)

Bohn, B., Zetzsch, C.

Starting with the new fact that a peroxy radical exists as intermediate in the OH-initiated degradation of aromatics in equilibrium with the OH adduct, measurements of OH (produced by excimer laser...

OH-initiated degradation mechanisms of aromatics and photooxidant-forming cycles of HOx (1999)

Bohn, B., Zetzsch, C.

The stability of peroxy radicals (intermediates derived from O2 and the OH-adducts of the aromatics benzene, toluene and toluene-d8) is determined from time profiles of OH and the OH-adducts...

Gas-phase reaction of the OH-benzene adduct with O2: reversibility and secondary formation of HO2 (1999)

Bohn, B., Zetzsch, C.

The reaction of OH radicals with benzene and consecutive reactions of benzene-OH adducts with O2 were studied in the gas phase in N2-O2 mixtures at atmospheric pressure and room temperature. OH was...

OH-initiated degradation mechanisms of aromatics and photooxidant-forming cycles of HOx (1998)

Bohn, B., Elend, M., Zetzsch, C.

A radical amplifier for HO2/RO2 was established and characterized and the OH-initiated degradation of benzene was investigated in a smog chamber with simultaneous recording of the phenol product and...

Formation of HO2 from OH and C2H2 in the presence of O2 (1998)

Bohn, B., Zetzsch, C.

Pulsed production of OH in a gas-phase system containing acetylene, O2 and NO resulted in biexponential OH-decay curves, indicating formation of HO2 in secondary reactions. Production and detection...

Formation and fate of the adduct of OH with trimethylbenzenes: Abstract 6th FECS Conference 1998 (1998)

Bolzaccini, E., Bohn, B., Rindone, B., Bruschi, M., Zetzsch, C.

Aromatics are still constituents of gasoline and contribute significantly to risk for population in urban areas, either directly via inhalation and skin contact or indirectly via intermediates of the...

Rate constants of HO2 + NO covering atmospheric condition. 1. H02 + H2O2 (1997)

Bohn, B., Zetzsch, C.

Rate constants of the gas-phase reactions HO2 + NO -> products (1), HO2 + NO -> OH + NO2 (1a), and OH + NO -> products (2) were determined at room temperature and total pressures of 10, 50, and 100...

Cycling of OH and HO[2] by NO[x] in the tropospheric oxidation of aromatics (CYTROXA): Part B: Detailed report of the contractors (1996)

Zetzsch, C., Koch, W., Bohn, B.

To determine any delay in the formation of HO[2] and its yield in the OH-initiated oxidation of benzene-d[6] by cycling experiments (system OH/C6D6/O2/NO). Determination of the reaction rate constant...

Adduktbildung von OH-Radikalen und Folgereaktionen mit O2 und NOx zur atmosphärischen Regenerierung von OH: Schlußßbericht zum Forschungsvorhaben FKZ 07 EU 705A/0 (1995)

Zetzsch, C., Koch, R., Knispel, R., Siese, M., Bohn, B.

Unsaturated hydrocarbons, aromatics in particular, are strongly involved in the formation of ozone by tropospheric photochemistry. Additon of OH is known to initiate the corresponding chain...

Migration of different Tc-99 species in soil and biological uptake by plants. (1986)

Bohn, B., Schuettelkopf, H., Schmidt, W.

Workshop 'Behavior of Tc in Terrestrial and Aquatic Environs', Seattle, Wash., May 5-10, 1986

OXYGEN-LINKED BINDING OF HALOTHANE TO HUMAN ADULT HAEMOGLOBIN (1980)

GUESNON, P., BOHN, B., BURSAUX, E., POYART, C.

The affinity for oxygen of normal adult human haemoglobin (Hb) solutions was measured in the presence of increasing concentrations of halothane. We observed a maximum increase in P50 of 25%...

Enhanced polymerization of recombinant human deoxyhemoglobin beta 6 Glu----Ile.

Baudin-Chich, V, Pagnier, J, Marden, M, Bohn, B, Lacaze, N, Kister, J, ...

Polymerization of the deoxy form of sickle cell hemoglobin (Hb S; beta 6 Glu----Val) involves both hydrophobic and electrostatic intermolecular contacts. These interactions drive the mutated...

Coupling of ferric iron spin and allosteric equilibrium in hemoglobin.

Marden, M C, Kiger, L, Kister, J, Bohn, B, Poyart, C

The allosteric transition in triply ferric hemoglobin has been studied with different ferric ligands. This valency hybrid permits observation of oxygen or CO binding properties to the single ferrous...

Effectors of hemoglobin. Separation of allosteric and affinity factors.

Marden, M C, Bohn, B, Kister, J, Poyart, C

The relative contributions of the allosteric and affinity factors toward the change in p50 have been calculated for a series of effectors of hemoglobin (Hb). Shifts in the ligand affinity of deoxy Hb...

Enhanced polymerization of recombinant human deoxyhemoglobin beta 6 Glu----Ile.

Baudin-Chich, V, Pagnier, J, Marden, M, Bohn, B, Lacaze, N, Kister, J, ...

Polymerization of the deoxy form of sickle cell hemoglobin (Hb S; beta 6 Glu----Val) involves both hydrophobic and electrostatic intermolecular contacts. These interactions drive the mutated...

Coupling of ferric iron spin and allosteric equilibrium in hemoglobin.

Marden, M C, Kiger, L, Kister, J, Bohn, B, Poyart, C

The allosteric transition in triply ferric hemoglobin has been studied with different ferric ligands. This valency hybrid permits observation of oxygen or CO binding properties to the single ferrous...

Effectors of hemoglobin. Separation of allosteric and affinity factors.

Marden, M C, Bohn, B, Kister, J, Poyart, C

The relative contributions of the allosteric and affinity factors toward the change in p50 have been calculated for a series of effectors of hemoglobin (Hb). Shifts in the ligand affinity of deoxy Hb...

Steric and hydrophobic determinants of the solubilities of recombinant sickle cell hemoglobins.

Bihoreau, M. T., Baudin, V., Marden, M., Lacaze, N., Bohn, B., Kister, J., ...

Models for the structure of the fibers of deoxy sickle cell hemoglobin (Hb Hb S, beta 6 Glu-->Val) have been obtained from X-ray and electron microscopic studies. Recent molecular dynamics...