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Modeled Emission of Hydroxyl and Ozone Reactivity from Evaporation of Fragrance Mixtures

Journal Article · · Environmental Science and Technology
 [1];  [2];  [2]
  1. Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States); Virginia Tech
  2. Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States)

Volatile chemical products (VCPs) account for increasing fractions of organic carbon emitted to the atmosphere, particularly in urban areas. Fragrances are potentially reactive components that are added to many VCPs. To better constrain these emissions, 11 commercially available liquid fragrance mixtures were characterized for their composition and their evaporation modeled. Here, emissions of mass, hydroxyl reactivity, and ozone reactivity were estimated by modeling under four different scenarios. Fragrance compounds were generally less than one-half the mass of fragrance mixtures, with the balance comprised of solvents and plasticizers and unresolved mass thought to be dominated by plasticizers. The results showed that terpenes and terpenoids account for nearly all of the emitted mass and reactivity while only comprising ~10% w/w on average of the liquid fragrance mixtures. Most of the reactivity is emitted within hours, with ozone reactivity evolving more rapidly than OH reactivity and comprised almost entirely of terpenes. Limonene, a common fragrance constituent, dominates the reactivity of emitted carbon. Generally, 20–40% of the potential hydroxyl reactivity contained in the fragrance mixture does not evaporate on time scales sufficient to have an impact on local or regional air quality.

Research Organization:
Aerosol Devices Inc., Fort Collins, CO (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
SC0018462
OSTI ID:
1830722
Journal Information:
Environmental Science and Technology, Journal Name: Environmental Science and Technology Journal Issue: 23 Vol. 55; ISSN 0013-936X
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

References (30)

Modeling comprehensive chemical composition of weathered oil following a marine spill to predict ozone and potential secondary aerosol formation and constrain transport pathways journal November 2015
Evaporation rates of liquid hydrocarbon spills on land and water journal August 1973
Relationship Between the Evaporation Rate and Vapor Pressure of Moderately and Highly Volatile Chemicals journal March 2008
Volatile emissions from common consumer products journal March 2015
Estimation of hydroxyl radical reaction rate constants for gas-phase organic compounds using a structure-reactivity relationship: An update journal January 1995
VOC source identification from personal and residential indoor, outdoor and workplace microenvironment samples in EXPOLIS-Helsinki, Finland journal October 2001
Atmospheric chemistry of VOCs and NOx journal January 2000
Cleaning products and air fresheners: exposure to primary and secondary air pollutants journal June 2004
Towards a quantitative understanding of total OH reactivity: A review journal June 2016
Automated single-ion peak fitting as an efficient approach for analyzing complex chromatographic data journal December 2017
Fragranced consumer products: Chemicals emitted, ingredients unlisted journal April 2011
Estimation of pure component properties journal December 2004
Estimation of pure component properties journal July 2008
Identifying Volatile Chemical Product Tracer Compounds in U.S. Cities journal December 2020
Observations Confirm that Volatile Chemical Products Are a Major Source of Petrochemical Emissions in U.S. Cities journal March 2021
Urban Oxidation Flow Reactor Measurements Reveal Significant Secondary Organic Aerosol Contributions from Volatile Emissions of Emerging Importance journal December 2019
Atmospheric Degradation of Volatile Organic Compounds journal December 2003
Evaporation rate of spills of hydrocarbons and petroleum mixtures journal November 1984
Long-Term Trends in Motor Vehicle Emissions in U.S. Urban Areas journal August 2013
Correlation of Chemical Evaporation Rate with Vapor Pressure journal August 2014
Long-Term Trends in California Mobile Source Emissions and Ambient Concentrations of Black Carbon and Organic Aerosol journal March 2015
Predicting Pesticide Emissions and Downwind Concentrations Using Correlations with Estimated Vapor Pressures journal August 2001
Multiyear trends in volatile organic compounds in Los Angeles, California: Five decades of decreasing emissions: TRENDS IN VOCS IN LOS ANGELES journal September 2012
Criteria pollutant impacts of volatile chemical products informed by near-field modelling journal October 2020
An Association between Air Pollution and Mortality in Six U.S. Cities journal December 1993
HEALTH EFFECTS OF OZONE A Critical Review journal May 1989
Calculation of Flame Ionization Detector Relative Response Factors Using the Effective Carbon Number Concept journal August 1985
Volatile chemical products emerging as largest petrochemical source of urban organic emissions journal February 2018
An Integrated Risk Function for Estimating the Global Burden of Disease Attributable to Ambient Fine Particulate Matter Exposure journal April 2014
Considering the future of anthropogenic gas-phase organic compound emissions and the increasing influence of non-combustion sources on urban air quality journal January 2018

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