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Title: Results of the California Healthy Homes Indoor Air Quality Study of 2011-2013: Impact of natural gas appliances on air pollutant concentrations

Journal Article · · Indoor Air
DOI:https://doi.org/10.1111/ina.12190· OSTI ID:1236693
 [1];  [2];  [2];  [2];  [2]; ORCiD logo [2]
  1. Gap Inc., San Francisco, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
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This study was conducted to assess the current impact of natural gas appliances on air quality in California homes. Data were collected via telephone interviews and measurements inside and outside of 352 homes. Passive samplers measured time-resolved CO and time-integrated NOX, NO2, formaldehyde, and acetaldehyde over ~6d periods in November 2011 - April 2012 and October 2012 - March 2013. The fraction of indoor NOX and NO2 attributable to indoor sources was estimated. NOX, NO2 and highest 1-h CO were higher in homes that cooked with gas and increased with amount of gas cooking. NOX and NO2 were higher in homes with cooktop pilot burners, relative to gas cooking without pilots. Homes with a pilot burner on a floor or wall furnace had higher kitchen and bedroom NOX and NO2 compared to homes without a furnace pilot. When scaled to account for varying home size and mixing volume, indoor-attributed bedroom and kitchen NOX and kitchen NO2 were not higher in homes with wall or floor furnace pilot burners, though bedroom NO2 was higher. In homes that cooked 4 h or more with gas, self-reported use of kitchen exhaust was associated with lower NOX, NO2 and highest 1-h CO. Gas appliances were not associated with higher concentrations of formaldehyde or acetaldehyde.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). Environmental Energy Technologies Div.
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-05CH11231; DE‐AC02‐05CH11231
OSTI ID:
1236693
Alternate ID(s):
OSTI ID: 1400507
Report Number(s):
LBNL-185629; ir:185629
Journal Information:
Indoor Air, Vol. 26, Issue 2; ISSN 0905-6947
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 50 works
Citation information provided by
Web of Science

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Cited By (4)

Re-evaluation of the WHO (2010) formaldehyde indoor air quality guideline for cancer risk assessment journal May 2016
Overview of HOMEChem: House Observations of Microbial and Environmental Chemistry journal January 2019
Investigating measurements of fine particle ( PM 2.5 ) emissions from the cooking of meals and mitigating exposure using a cooker hood journal February 2019
Levels and Determinants of Fine Particulate Matter and Carbon Monoxide in Kitchens Using Biomass and Non-Biomass Fuel for Cooking journal February 2020

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