Chemistry of Atmospheric Brown Carbon

Chemical Reviews, Journal Year: 2015, Volume and Issue: 115(10), P. 4335 - 4382

Published: Feb. 26, 2015

ADVERTISEMENT RETURN TO ISSUEPREVReviewNEXTChemistry of Atmospheric Brown CarbonAlexander Laskin*†, Julia Laskin*‡, and Sergey A. Nizkorodov*§View Author Information‡ †Environmental Molecular Sciences Laboratory ‡Physical Division, Pacific Northwest National Laboratory, Richland, Washington 99352, United States§ Department Chemistry, University California, Irvine, California 92697, States*A.L.: e-mail, [email protected]; phone, +1 509 376-6129; fax, 376-6139.*J.L.: 376-6136; 376-6139.*S.A.N.: 949 824-1262; 824-2420.Cite this: Chem. Rev. 2015, 115, 10, 4335–4382Publication Date (Web):February 26, 2015Publication History Received24 October 2014Published online26 February 2015Published inissue 27 May 2015https://doi.org/10.1021/cr5006167Copyright © 2015 American Chemical SocietyRIGHTS & PERMISSIONSACS AuthorChoiceArticle Views25896Altmetric-Citations902LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum full text article downloads since November 2008 (both PDF HTML) across all institutions individuals. These metrics regularly updated to reflect usage leading up last few days.Citations number other articles citing this article, calculated by Crossref daily. Find more information about citation counts.The Altmetric Attention Score is a quantitative measure attention that research has received online. Clicking on donut icon will load page at altmetric.com with additional details score social media presence for given article. how calculated. Share Add toView InAdd Full Text ReferenceAdd Description ExportRISCitationCitation abstractCitation referencesMore Options onFacebookTwitterWechatLinked InReddit (19 MB) Get e-AlertsSUBJECTS:Absorption,Aerosols,Light absorption,Optical properties,Quantum mechanics e-Alerts

Language: Английский

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Sources of particulate-matter air pollution and its oxidative potential in Europe

Nature, Journal Year: 2020, Volume and Issue: 587(7834), P. 414 - 419

Published: Nov. 18, 2020

Language: Английский

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Proton-Transfer-Reaction Mass Spectrometry: Applications in Atmospheric Sciences

Chemical Reviews, Journal Year: 2017, Volume and Issue: 117(21), P. 13187 - 13229

Published: Oct. 4, 2017

Proton-transfer-reaction mass spectrometry (PTR-MS) has been widely used to study the emissions, distributions, and chemical evolution of volatile organic compounds (VOCs) in atmosphere. The applications PTR-MS have greatly promoted understanding VOC sources their roles air-quality issues. In past two decades, many new spectrometric techniques applied instruments, performance improved significantly. This Review summarizes these developments recent atmospheric sciences. We discuss latest instrument development characterization work on including use time-of-flight analyzers types ion guiding interfaces. Here we review what learned about specificity different product signals for important VOCs. present some highlights research using observations urban air, biomass-burning plumes, forested regions, oil natural gas production agricultural facilities, marine environment, laboratory studies, indoor air. Finally, will summarize further that are aimed at improving sensitivity extending its other sciences, e.g., aerosol measurements OH reactivity measurements.

Language: Английский

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Molecular corridors and parameterizations of volatility in the chemical evolution of organic aerosols

Atmospheric chemistry and physics, Journal Year: 2016, Volume and Issue: 16(5), P. 3327 - 3344

Published: March 14, 2016

Abstract. The formation and aging of organic aerosols (OA) proceed through multiple steps chemical reaction mass transport in the gas particle phases, which is challenging for interpretation field measurements laboratory experiments as well accurate representation OA evolution atmospheric aerosol models. Based on data from over 30 000 compounds, we show that compounds with a wide variety functional groups fall into molecular corridors, characterized by tight inverse correlation between molar volatility. We developed parameterizations to predict saturation concentration containing oxygen, nitrogen, sulfur elemental composition can be measured soft-ionization high-resolution spectrometry. Field measurement new events, biomass burning, cloud/fog processing, indoor environments were mapped corridors characterize nature observed components. found less-oxidized are constrained corridor low high volatility, whereas highly oxygenated water extend Among nitrogen- sulfur-containing identified aerosols, amines tend exhibit organonitrates organosulfates follow O : C extending suggest consideration help constrain volatility particle-phase state modeling particularly compounds.

Language: Английский

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Review on recent progress in observations, source identifications and countermeasures of PM2.5

Environment International, Journal Year: 2015, Volume and Issue: 86, P. 150 - 170

Published: Nov. 17, 2015

Language: Английский

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Recent Progress on Titanium Dioxide Nanomaterials for Photocatalytic Applications

ChemSusChem, Journal Year: 2018, Volume and Issue: 11(18), P. 3023 - 3047

Published: July 9, 2018

Abstract Environmental and energy problems have drawn much attention owing to rapid population growth accelerated economic development. For instance, photocatalysis, “a green technology”, plays an important role in solar‐energy conversion its potential solve environmental problems. Recently, many efforts been devoted improving visible‐light photocatalytic activity by using titanium dioxide as a photocatalyst result of wide range applications the environment fields. However, fast charge recombination absorption edge UV limit efficiency TiO 2 under irradiation. Many investigations undertaken overcome limitations and, therefore, enhance visible light. The present literature review focuses on different strategies used promote separation electron–hole pairs shift region. Current synthesis techniques elaborate several nanostructures ‐based materials, recent progress enhancing activity, photocatalysis will be discussed. On basis studies reported literature, we believe that this help development new improve performance materials further.

Language: Английский

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The characteristics of brown carbon aerosol during winter in Beijing

Atmospheric Environment, Journal Year: 2015, Volume and Issue: 127, P. 355 - 364

Published: Dec. 19, 2015

Language: Английский

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Air Pollution and Climate Change Effects on Allergies in the Anthropocene: Abundance, Interaction, and Modification of Allergens and Adjuvants

Environmental Science & Technology, Journal Year: 2017, Volume and Issue: 51(8), P. 4119 - 4141

Published: March 24, 2017

Air pollution and climate change are potential drivers for the increasing burden of allergic diseases. The molecular mechanisms by which air pollutants parameters may influence diseases, however, complex elusive. This article provides an overview physical, chemical biological interactions between pollution, change, allergens, adjuvants immune system, addressing how these promote development allergies. We reviewed synthesized key findings from atmospheric, climate, biomedical research. current state knowledge, open questions, future research perspectives outlined discussed. Anthropocene, as present era globally pervasive anthropogenic on planet Earth and, thus, human environment, is characterized a strong increase carbon dioxide, ozone, nitrogen oxides, combustion- or traffic-related particulate matter in atmosphere. These environmental factors can enhance abundance induce modifications oxidative stress body, skew system toward reactions. In particular, act alter immunogenicity allergenic proteins, while affects atmospheric exposure to bioaerosols aeroallergens. To fully understand effectively mitigate adverse effects several challenges remain be resolved. Among identification quantification immunochemical reaction pathways involving allergens under relevant physiological conditions.

Language: Английский

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Non-exhaust vehicle emissions of particulate matter and VOC from road traffic: A review

Atmospheric Environment, Journal Year: 2021, Volume and Issue: 262, P. 118592 - 118592

Published: July 1, 2021

Language: Английский

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Environmentally Persistent Free Radicals: Insights on a New Class of Pollutants

Environmental Science & Technology, Journal Year: 2018, Volume and Issue: 52(5), P. 2468 - 2481

Published: Feb. 14, 2018

Environmentally persistent free radicals, EPFRs, exist in significant concentration atmospheric particulate matter (PM). EPFRs are primarily emitted from combustion and thermal processing of organic materials, which the byproducts interact with transition metal-containing particles to form a radical-particle pollutant. While existence radicals has been known for over half-a-century, only recently that their presence environmental matrices health effects have started research, but still its infancy. Most experimental studies conducted understand origin nature focused on nanoparticles supported larger micrometer-sized particle mimics incidental formed during combustion. Less is extent by may engineered nanomaterials (ENMs) or treatment. In this critical timely review, we summarize important findings discuss potential pristine ENMs as new research direction. differ type compared particles. The lack basic data fundamental knowledge about interaction under high-temperature oxidative conditions present an unknown burden. Studying catalyzing address hazards PM fully these emerging contaminants.

Language: Английский

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