Atmospheric new particle formation and growth: review of

Atmospheric new particle formation and growth: review of

Atmospheric new particle formation (NPF) and growth involves the formation of molecular clusters and their subsequent growth to larger sizes, first to a few nm in particle diameter, then to nucleation and Aitken mode particles in the sub100 nm size range, and possibly up to sizes at which these particles may act as cloud condensation nuclei (CCN).

Open Access Journals AIMS Press

Open Access Journals AIMS Press

The aging of refractory black carbon (rBC) aerosol by sulfatedriven chemistry has been constrained in coalfired powerplant plumes using the NOAA WP3D research aircraft during the Southern Nexus (SENEX) study, which took place in the Southeastern US in June and July of 2013. A Single Particle Soot Photometer (SP2) determined the microphysical properties of rBCcontaining particles including

Professional Web Pages: Rebecca Washenfelder

Professional Web Pages: Rebecca Washenfelder

Supervisor: Dr. Charles Brock Participated in two aircraft field campaigns measuring aerosol size distribution and chemical composition. Completed subsequent data analysis of particle growth in the plumes of coalfired power plants. Assembled, tested, and deployed an optical white light particle counter for aircraft measurements.

Observation and modeling of the evolution of Texas power

Observation and modeling of the evolution of Texas power

4 evolution during plume transport. Previous aircraft measurements in PPPs have revealed that 5 gasphase SO2 oxidation is the key pathway for the SO2 removal and the particle growth in PPPs 6 in the absence of clouds (Brock et al., 2002, 2003 Springston et al., 2005). SO2 can also readily

Particle growth in the plumes of coal‐fired power plants

Particle growth in the plumes of coal‐fired power plants

Journal of Geophysical Research (18961977) The observations reported here show that significant particle growth in the plumes of coal‐fired power generation stations in the southeastern United States in the daylight hours of the summertime is associated with only those submitted to Journal of Geophysical Research, 2001).

References Shodhganga

References Shodhganga

energy and smoke aerosol emissions. Journal of Geophysical Research, 113, D14S09. 43. IPCC, 2007: Climate Change 2007: Synthesis Report. (2007). Contribution of working groups I, II and III to the fourth assessment report of the Intergovernmental Panel on Climate Change [Core Writing Team, Pachauri, R.K and Reisinger, A. (eds.)]. IPCC, Geneva,

Diffusion of H2SO4 in Humidified Nitrogen: Hydrated H2SO4

Diffusion of H2SO4 in Humidified Nitrogen: Hydrated H2SO4

Firstorder rate coefficients for the wall loss of H2SO4 were measured as a function of relative humidity in a highpressure laminar flow tube in conjunction with chemical ionization mass spectrometry detection. The measurements yield a diffusion coefficient for H2SO4 vapor in N2 at 298 K of 0.094 (۪.006) atm cm2 s1. For relative humidities (RH) up to about 40%, the measured firstorder

Formation and growth rates of ultrafine atmospheric

Formation and growth rates of ultrafine atmospheric

In this study we review more than 100 publiions that report observations of ultrafine particles in the atmosphere. The studies included are presented in Table 1, from which one can see the number of each paper (to be used later), the authors, and the loion (latitude, longitude, name of the place) and the measurement time period.A global map showing the measurement loions is presented

Changing the spatial loion of electricity generation to

Changing the spatial loion of electricity generation to

The reduction in cooling water consumption in Scenario A is driven by decreased coalfired electricity generation in ERCOT Nobel C E, McDonaldBuller E C, Kimura Y and Allen D T 2001 Accounting for spatial variation of ozone Brock C A et al 2002 Particle growth in the plumes of coalfired power plants J. Geophys. Res. 107 4155. Crossref

CARG Research Reports Now Available Online

CARG Research Reports Now Available Online

(part_growth_power_sum.pdf) "Particle Formation and Growth in Power Plant Plumes, Volume 1: Field Observations and Theoretical Studies of the Evolution of Particles in the Plumes from CoalFired Electric Power Plants" by P. V. Hobbs, M. W. Eltgroth, D. A. Hegg, and L. F. Radke, May 1983.

Particle growth in urban and industrial plumes in Texas

Particle growth in urban and industrial plumes in Texas

[1] Particle size distributions and gas‐phase particle precursors and tracer species were measured aboard an aircraft in the plumes downwind from industrial and urban sources in the vicinity of Houston, TX during the daytime in late August and early September 2000. Plumes originating from the Parish gas‐fired and coal‐fired power plant, petrochemical industries along the Houston ship

Publiions LAC Paul Scherrer Institut (PSI)

Publiions LAC Paul Scherrer Institut (PSI)

Airborne observations of reactive inorganic chlorine and bromine species in the exhaust of coalfired power plants Journal of Geophysical Research D: Atmospheres The role of lowvolatility organic compounds in initial particle growth in the atmosphere Nature. 2016 533(7604 Journal of Geophysical Research D: Atmospheres. 2015 120(11

Peculiarities in atmospheric particle number and size

Peculiarities in atmospheric particle number and size

Highlights We described the PM sources influencing a typical urban environment in the Mediterranean. Road traffic governs the daily cycle of black carbon, CO, NO x and the finer fraction of PM. Constructiondemolition works increased hourly PM 2.510 levels to 8 g m −3 on an hourly basis. Shipping emissions were traced by means of the daily cycle of SO 2. We detected a major local

References Shodhganga

References Shodhganga

energy and smoke aerosol emissions. Journal of Geophysical Research, 113, D14S09. 43. IPCC, 2007: Climate Change 2007: Synthesis Report. (2007). Contribution of working groups I, II and III to the fourth assessment report of the Intergovernmental Panel on Climate Change [Core Writing Team, Pachauri, R.K and Reisinger, A. (eds.)]. IPCC, Geneva,

Cloud and Aerosol Research Group (CARG) • Zero Geoengineering

Cloud and Aerosol Research Group (CARG) • Zero Geoengineering

Mar 01, 2020 · (part_growth_power_sum.pdf) "Particle Formation and Growth in Power Plant Plumes, Volume 1: Field Observations and Theoretical Studies of the Evolution of Particles in the Plumes from CoalFired Electric Power Plants" by P. V. Hobbs, M. W. Eltgroth, D. A. Hegg, and L. F. Radke, May 1983. Final Report prepared for Electric Power Research

No evidence for acidalyzed secondary organic aerosol

No evidence for acidalyzed secondary organic aerosol

About Cookies, including instructions on how to turn off cookies if you wish to do so. By continuing to browse this site you agree to us using cookies as described in

Atmospheric new particle formation and growth: review of

Atmospheric new particle formation and growth: review of

Atmospheric new particle formation (NPF) and growth involves the formation of molecular clusters and their subsequent growth to larger sizes, first to a few nm in particle diameter, then to nucleation and Aitken mode particles in the sub100 nm size range, and possibly up to sizes at which these particles may act as cloud condensation nuclei (CCN).

Cloud condensation nuclei activity, closure, and droplet

Cloud condensation nuclei activity, closure, and droplet

refineries, chemical plants, waste treatment, coalfired power plants, and heavy industrial shipping via the Houston Ship Channel, measured aerosol concentrations often exceeded 10,000 cm 3. Houston, with its diverse mixture of local industrial sources in combination with the local marine and biogenic emissions, is an especially challenging

Air Quality Impact of Biomass CoFiring with Coal at a

Air Quality Impact of Biomass CoFiring with Coal at a

The HoustonGalvestonBrazoria (HGB) area of Texas is a moderate nonattainment region for ozone, and has a history of severe summer ozone episodes. W. A. Parish power plant (WAP) loed in the greater Houston area is the largest coal and natural gas based electricity generating unit (EGU) in Texas. Forest residue is an abundant renewable resource, and can be used to offset coal usage at EGUs.

Simulations of Aerosols and Photochemical Species With the

Simulations of Aerosols and Photochemical Species With the

SIMULATIONS OF AEROSOLS AND PHOTOCHEMICAL SPECIES WITH THE CMAQ PLUMEINGRID MODELING SYSTEM J. M. Godowitch Atmospheric Sciences Modeling Division, Air Resources Laboratory National Oceanic and Atmospheric Administration Research Triangle Park, North Carolina email: [email protected] EPA/600/A04/095 1.

Formation and growth rates of ultrafine atmospheric

Formation and growth rates of ultrafine atmospheric

In this study we review more than 100 publiions that report observations of ultrafine particles in the atmosphere. The studies included are presented in Table 1, from which one can see the number of each paper (to be used later), the authors, and the loion (latitude, longitude, name of the place) and the measurement time period.A global map showing the measurement loions is presented

NOAA ESRL Global Monitoring Division

NOAA ESRL Global Monitoring Division

Nov 13, 2018 · The NOAA Earth System Research Laboratory was formed to observe and understand the Earth system and to develop products, through a commitment to research that will advance the National Oceanic and Atmopsheric Administration''s environmental information and services on global to

Particle growth in the plumes of coal‐fired power plants

Particle growth in the plumes of coal‐fired power plants

[1] Submicron particle‐size distributions were measured with 10‐s resolution aboard the National Oceanic and Atmospheric Administration WP‐3D Orion research aircraft in the plumes downwind of coal‐fired power generation plants in the eastern United States and the urban areas of Nashville, Tennessee, and Atlanta, Georgia. Recently formed

Particle characteristics following cloud‐modified

Particle characteristics following cloud‐modified

[48] A numerical model of particle nucleation and growth in the H 2 SO 4 ‐H 2 O system combined with a sectional particle model [Lovejoy et al., 2004] was used to simulate the formation and growth of particles. This box model simulates the formation of new particles by ion‐assisted binary nucleation.

Curriculum Vitae Earth System Research Laboratory

Curriculum Vitae Earth System Research Laboratory

Curriculum Vitae. Research Interests: Measurements of atmospheric trace gases to advance the understanding of air pollution formation, transport, and impact on the ecosystem and human health. Source and Emissions Characterization: Identifiion of trace gas point and area sources and characterization of their emissions to improve emission inventories and study the impact of these

Smog chamber study on the evolution of fume from

Smog chamber study on the evolution of fume from

JOURNAL OF ENVIRONMENTAL SCIENCES ISSN 10010742 CN 112629/X ac.cn Available online at com Journal of Environmental Sciences 2012, 24(1) 169â€"176 Smog chamber study on the evolution of fume from residential coal combustion Chunmei Geng 1,∗, Kun Wang 2, Wei Wang 1, Jianhua Chen 1, Xiaoyu Liu 1, e Liu 1 1.

Changing the spatial loion of electricity generation to

Changing the spatial loion of electricity generation to

A life cycle quantifiion of freshwater consumption for Texas coal and natural gasfired electricity Environ. Res. Lett Kimura Y and Allen D T 2001 Accounting for spatial variation of ozone productivity in NO x emission Brock C A et al 2002 Particle growth in the plumes of coalfired power plants J. Geophys. Res. 107 4155. Crossref.

Changing the spatial loion of electricity generation to

Changing the spatial loion of electricity generation to

The reduction in cooling water consumption in Scenario A is driven by decreased coalfired electricity generation in ERCOT Nobel C E, McDonaldBuller E C, Kimura Y and Allen D T 2001 Accounting for spatial variation of ozone Brock C A et al 2002 Particle growth in the plumes of coalfired power plants J. Geophys. Res. 107 4155. Crossref

Accountability assessment of regulatory impacts on ozone

Accountability assessment of regulatory impacts on ozone

Accountability assessment of regulatory impacts on ozone and PM 2.5 concentrations using statistical and deterministic Reeves JM, Huey LG, Holloway JS, Parrish DD, Huebler G, Fehsenfeld FC (2002) Particle growth in the plumes of coalfired power plants. Liao, K. et al. Accountability assessment of regulatory impacts on ozone and PM 2.5

Evolution of particles in the plumes of coalfired power

Evolution of particles in the plumes of coalfired power

A series of detailed airborne measurements are presented of particle size distributions and gastoparticle (gtop) conversion rates at various loions in the plumes from two large coalfired, electric power plants, situated in quite different geographical regions (Washington State and New Mexico).

(PDF) The effect of coalfired powerplant SO2 and NOx

(PDF) The effect of coalfired powerplant SO2 and NOx

Nucleation in coalfired powerplant plumes can greatly contribute to particle number concentrations near source regions. The changing emissions rates of SO2 and NOx due to pollutioncontrol

Source appointment of fine particle number and volume

Source appointment of fine particle number and volume

Dec 15, 2015 · Brock CA, Washenfelder RA, Trainer M, Ryerson TB, Wilson JC, Reeves JM, Huey LG, Holloway JS, Parrish DD, Hübler G. and Fehsenfeld FC (2002) Particle growth in the plumes of coalfired power plants, J Geophys Res107, NO. D12, 4155, 10.1029/2001JD001062

Development of a Reactive Plume Model for the

Development of a Reactive Plume Model for the

Development of a Reactive Plume Model for the Consideration of PowerPlant Plume Photochemistry and Its Appliions

No evidence for acidalyzed secondary organic aerosol

No evidence for acidalyzed secondary organic aerosol

About Cookies, including instructions on how to turn off cookies if you wish to do so. By continuing to browse this site you agree to us using cookies as described in

Professional Web Pages: Rebecca Washenfelder

Professional Web Pages: Rebecca Washenfelder

Supervisor: Dr. Charles Brock Participated in two aircraft field campaigns measuring aerosol size distribution and chemical composition. Completed subsequent data analysis of particle growth in the plumes of coalfired power plants. Assembled, tested, and deployed an optical white light particle counter for aircraft measurements.

Particle characteristics following cloud‐modified

Particle characteristics following cloud‐modified

[48] A numerical model of particle nucleation and growth in the H 2 SO 4 ‐H 2 O system combined with a sectional particle model [Lovejoy et al., 2004] was used to simulate the formation and growth of particles. This box model simulates the formation of new particles by ion‐assisted binary nucleation.

Kinetics and Products of the GasPhase Reaction of SO3

Kinetics and Products of the GasPhase Reaction of SO3

The kinetics of the gasphase reactions of SO3 with H2O and D2O were studied over the temperature range 250−360 K in N2 with a laminar flow reactor coupled to a chemical ionization mass spectrometer. The SO3 loss is second order in the water concentration, is independent of pressure (20−80 Torr N2, 300 K), and has a strong negative temperature dependence and a significant H/D isotope

Atmospheric new particle formation and growth: review of

Atmospheric new particle formation and growth: review of

Brock C A et al 2003 Particle growth in urban and industrial Dittenhoefer A C and de Pena R G 1978 A study of production and growth of sulfate particles in plumes from a coalfired power plant Atmos. Environ. 12 Väkevä M, Aalto P, Miikkulainen P, Hämeri K and O''Dowd C D 2001 On the formation, growth and composition of

Kinetics and Products of the GasPhase Reaction of SO3

Kinetics and Products of the GasPhase Reaction of SO3

The kinetics of the gasphase reactions of SO3 with H2O and D2O were studied over the temperature range 250−360 K in N2 with a laminar flow reactor coupled to a chemical ionization mass spectrometer. The SO3 loss is second order in the water concentration, is independent of pressure (20−80 Torr N2, 300 K), and has a strong negative temperature dependence and a significant H/D isotope

Cloud and Aerosol Research Group (CARG) • Zero Geoengineering

Cloud and Aerosol Research Group (CARG) • Zero Geoengineering

Mar 01, 2020 · (part_growth_power_sum.pdf) "Particle Formation and Growth in Power Plant Plumes, Volume 1: Field Observations and Theoretical Studies of the Evolution of Particles in the Plumes from CoalFired Electric Power Plants" by P. V. Hobbs, M. W. Eltgroth, D. A. Hegg, and L. F. Radke, May 1983. Final Report prepared for Electric Power Research

LIST OF Ph

LIST OF Ph

M.S. Thesis, "The Effects of a CoalFired Power Plant on Regional Visibility," 1983. 19) Funk, Nathan Tucker. M.S. Thesis, "Evaluation of a 35 GHz Radar for Cloud Physics Research," 1983. 20) Schutt, David John. M.S. Thesis, "Nitric Acid and Ammonia in the Ambient Air and in the Plume from a CoalFired Power Plant," 1984.

On the formation and growth of atmospheric nanoparticles

On the formation and growth of atmospheric nanoparticles

In this paper we summarize recent experimental, theoretical and observational results on the formation and growth of atmospheric nanoparticles. During the last years significant progress has occurred to explain atmospheric nucleation and initial steps of the growth.

Kinetics and Products of the GasPhase Reaction of SO3

Kinetics and Products of the GasPhase Reaction of SO3

The kinetics of the gasphase reactions of SO3 with H2O and D2O were studied over the temperature range 250−360 K in N2 with a laminar flow reactor coupled to a chemical ionization mass spectrometer. The SO3 loss is second order in the water concentration, is independent of pressure (20−80 Torr N2, 300 K), and has a strong negative temperature dependence and a significant H/D isotope

NOAA ESRL Global Monitoring Division

NOAA ESRL Global Monitoring Division

Nov 13, 2018 · The NOAA Earth System Research Laboratory was formed to observe and understand the Earth system and to develop products, through a commitment to research that will advance the National Oceanic and Atmopsheric Administration''s environmental information and services on global to

Simulations of Aerosols and Photochemical Species With the

Simulations of Aerosols and Photochemical Species With the

SIMULATIONS OF AEROSOLS AND PHOTOCHEMICAL SPECIES WITH THE CMAQ PLUMEINGRID MODELING SYSTEM J. M. Godowitch Atmospheric Sciences Modeling Division, Air Resources Laboratory National Oceanic and Atmospheric Administration Research Triangle Park, North Carolina email: [email protected] EPA/600/A04/095 1.

No evidence for acidalyzed secondary organic aerosol

No evidence for acidalyzed secondary organic aerosol

About Cookies, including instructions on how to turn off cookies if you wish to do so. By continuing to browse this site you agree to us using cookies as described in

Air pollution accountability of energy transitions: the

Air pollution accountability of energy transitions: the

Using this framework, we quantify relative impacts of wind variability and emissions changes from coalfired power plants on exposure to emissions across the United States under three unique combinations of spatialtemporal and source scales. We find that the large emissions reductions achieved by United States coalfired power plants after