Sep 30, 2005

Sorption of a diverse set of organic vapors to urban aerosols

Environmental Science & Technology
Christine M RothRené P Schwarzenbach

Abstract

Sorption to urban aerosols is a key process in determining the transport and fate of organic pollutants in the atmosphere. The sorption properties of two urban aerosol samples have been determined using aerosol/air partition coefficients measured for a large set of diverse organic vapors. The dominant sorption process could be identified for both samples with two complementary methods: (a) by applying poly-parameter linear free energy relationships (LFERs) to the data sets, and (b) by evaluating the specific surface area, the elemental carbon (EC) content, and the organic matter (OM) content of the aerosols in combination with various sorbent-air partition coefficients from the literature. This revealed that sorption to the two urban aerosols was dominated by absorption into OM and that the diverse data set could be evaluated with an absorption model. The data further revealed that neither EC nor OM was fully available for sorption. The latter leads to the hypothesis that aerosol OM in urban samples has characteristics comparable to those of glassy polymers.

  • References
  • Citations15

References

  • We're still populating references for this paper, please check back later.

Mentioned in this Paper

Thermodynamics
Organic Chemicals
Vitreous Carbon
Physical Process of Vaporization
Adsorption
Vapor
Polymers
Aerosol Dose Form
Environmental Pollutants
Atmosphere, Planetary

About this Paper

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Bone Marrow Neoplasms

Bone Marrow Neoplasms are cancers that occur in the bone marrow. Discover the latest research on Bone Marrow Neoplasms here.

IGA Glomerulonephritis

IgA glomerulonephritis is a chronic form of glomerulonephritis characterized by deposits of predominantly Iimmunoglobin A in the mesangial area. Discover the latest research on IgA glomerulonephritis here.

Cryogenic Electron Microscopy

Cryogenic electron microscopy (Cryo-EM) allows the determination of biological macromolecules and their assemblies at a near-atomic resolution. Here is the latest research.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

LRRK2 & Immunity During Infection

Mutations in the LRRK2 gene are a risk-factor for developing Parkinson’s disease. However, LRRK2 has been shown to function as a central regulator of vesicular trafficking, infection, immunity, and inflammation. Here is the latest research on the role of this kinase on immunity during infection.

Antiphospholipid Syndrome

Antiphospholipid syndrome or antiphospholipid antibody syndrome (APS or APLS), is an autoimmune, hypercoagulable state caused by the presence of antibodies directed against phospholipids.

Meningococcal Myelitis

Meningococcal myelitis is characterized by inflammation and myelin damage to the meninges and spinal cord. Discover the latest research on meningococcal myelitis here.

Alzheimer's Disease: MS4A

Variants within membrane-spanning 4-domains subfamily A (MS4A) gene cluster have recently been implicated in Alzheimer's disease by recent genome-wide association studies. Here is the latest research.