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Title: Indoor Secondary Pollutants from Household Product Emissions inthe Presence of Ozone: A Bench-Scale Chamber Study

Abstract

Ozone-driven chemistry is a major source of indoor secondary pollutants of health concern. This study investigates secondary air pollutants formed from reactions between constituents of household products and ozone. Gas-phase product emissions were introduced along with ozone at constant rates into a 198-L Teflon-lined reaction chamber. Gas-phase concentrations of reactive terpenoids and oxidation products were measured. Formaldehyde was a predominant oxidation byproduct for the three studied products, with yields under most conditions of 20-30% with respect to ozone consumed. Acetaldehyde, acetone, glycolaldehyde, formic acid and acetic acid were each also detected for two or three of the products. Immediately upon mixing of reactants, a scanning mobility particle sizer detected particle nucleation events that were followed by a significant degree of ultrafine particle growth. The production of secondary gaseous pollutants and particles depended primarily on the ozone level and was influenced by other parameters such as the air-exchange rate. Hydroxyl radical concentrations in the range 0.04-200 x 10{sup 5} molecules cm{sup -3} were measured. OH concentrations were observed to vary strongly with residual ozone level in the chamber, which was in the range 1-25 ppb, as is consistent with expectations from a simplified kinetic model. In a separate test, we exposedmore » the dry residue of two products to ozone in the chamber and observed the formation of gas-phase and particle-phase secondary oxidation products.« less

Authors:
; ; ; ; ; ;
Publication Date:
Research Org.:
Ernest Orlando Lawrence Berkeley NationalLaboratory, Berkeley, CA (US)
Sponsoring Org.:
USDOE; California Air Resources Board Contract01-36
OSTI Identifier:
901804
Report Number(s):
LBNL-58785
R&D Project: 80XW01; BnR: 600305000; TRN: US200715%%142
DOE Contract Number:  
DE-AC02-05CH11231
Resource Type:
Journal Article
Journal Name:
Environmental Science&Technology
Additional Journal Information:
Journal Volume: 40; Journal Issue: 14; Related Information: Journal Publication Date: 07/15/2006
Country of Publication:
United States
Language:
English
Subject:
54; ACETALDEHYDE; ACETIC ACID; ACETONE; CHEMISTRY; FORMALDEHYDE; FORMIC ACID; HOUSEHOLDS; HYDROXYL RADICALS; INDOORS; KINETICS; NUCLEATION; OXIDATION; OZONE; POLLUTANTS; RESIDUES

Citation Formats

Destaillats, Hugo, Lunden, Melissa M, Singer, Brett C, Coleman, Beverly K, Hodgson, Alfred T, Weschler, Charles J, and Nazaroff, William W. Indoor Secondary Pollutants from Household Product Emissions inthe Presence of Ozone: A Bench-Scale Chamber Study. United States: N. p., 2005. Web.
Destaillats, Hugo, Lunden, Melissa M, Singer, Brett C, Coleman, Beverly K, Hodgson, Alfred T, Weschler, Charles J, & Nazaroff, William W. Indoor Secondary Pollutants from Household Product Emissions inthe Presence of Ozone: A Bench-Scale Chamber Study. United States.
Destaillats, Hugo, Lunden, Melissa M, Singer, Brett C, Coleman, Beverly K, Hodgson, Alfred T, Weschler, Charles J, and Nazaroff, William W. Sat . "Indoor Secondary Pollutants from Household Product Emissions inthe Presence of Ozone: A Bench-Scale Chamber Study". United States. https://www.osti.gov/servlets/purl/901804.
@article{osti_901804,
title = {Indoor Secondary Pollutants from Household Product Emissions inthe Presence of Ozone: A Bench-Scale Chamber Study},
author = {Destaillats, Hugo and Lunden, Melissa M and Singer, Brett C and Coleman, Beverly K and Hodgson, Alfred T and Weschler, Charles J and Nazaroff, William W},
abstractNote = {Ozone-driven chemistry is a major source of indoor secondary pollutants of health concern. This study investigates secondary air pollutants formed from reactions between constituents of household products and ozone. Gas-phase product emissions were introduced along with ozone at constant rates into a 198-L Teflon-lined reaction chamber. Gas-phase concentrations of reactive terpenoids and oxidation products were measured. Formaldehyde was a predominant oxidation byproduct for the three studied products, with yields under most conditions of 20-30% with respect to ozone consumed. Acetaldehyde, acetone, glycolaldehyde, formic acid and acetic acid were each also detected for two or three of the products. Immediately upon mixing of reactants, a scanning mobility particle sizer detected particle nucleation events that were followed by a significant degree of ultrafine particle growth. The production of secondary gaseous pollutants and particles depended primarily on the ozone level and was influenced by other parameters such as the air-exchange rate. Hydroxyl radical concentrations in the range 0.04-200 x 10{sup 5} molecules cm{sup -3} were measured. OH concentrations were observed to vary strongly with residual ozone level in the chamber, which was in the range 1-25 ppb, as is consistent with expectations from a simplified kinetic model. In a separate test, we exposed the dry residue of two products to ozone in the chamber and observed the formation of gas-phase and particle-phase secondary oxidation products.},
doi = {},
journal = {Environmental Science&Technology},
number = 14,
volume = 40,
place = {United States},
year = {2005},
month = {10}
}