Indoor cooking and cleaning as a source of outdoor air pollution in urban environments

Carter, Toby J.; Shaw, David R.; Carslaw, David C.; Carslaw, Nicola

doi:10.1039/d3em00512g

Environ. Sci.: Processes Impacts

2024

DOI: 10.1039/d3em00512g

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Indoor cooking and cleaning as a source of outdoor air pollution in urban environments

Toby J. Carter,

David R. Shaw,

David C. Carslaw

et al.

Abstract: Indoor sources of air pollution, such as from cooking and cleaning, play a key role in indoor gas-phase chemistry. The focus of the impact of these activities on air quality...

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References 102 publications

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Impact of Cooking Methods on Indoor Air Quality: A Comparative Study of Particulate Matter (PM) and Volatile Organic Compound (VOC) Emissions

Tang,

Sahu,

et al. 2024

Indoor Air

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Cooking activities are responsible for substantial emissions of both particulate matter (PM) and volatile organic compounds (VOCs), two key indoor air pollutants, which can lead to numerous adverse health effects, including premature mortality. Chicken breast was prepared following tightly constrained cooking procedures with contrasting cooking methods in a well‐controlled research kitchen to investigate the PM and VOC emissions by simultaneous measurements with reference instruments (an optical aerosol spectrometer measuring light scattering of single particles for continuous PM monitoring and a proton‐transfer‐reaction time‐of‐flight mass spectrometer [PTR‐ToF‐MS] for VOCs). Peak concentrations of PM2.5 ranked in the order (median [μg m−3]) pan‐frying (92.9), stir‐frying (26.7), deep‐frying (7.7), boiling (0.7), and air‐frying (0.6). Peak concentrations of VOCs ranked in the order (median [ppb]) pan‐frying (260), deep‐frying (230), stir‐frying (110), boiling (30), and air‐frying (20). Key VOCs from different frying methods were identified in a detailed principal component analysis (PCA), including aldehydes, ketones, furans, aromatic hydrocarbons, alkenes, pyrazines, and alkanes. The cooking temperature was found to be the key factor that positively correlated with both PM and VOC emission strength, while the oil weight was negatively correlated with the PM levels. We also determined PM emission rates (varying over a wide range, e.g., for PM2.5 from 0.1 to 2931 μg min−1) and PM exposures (ranging, e.g., for PM2.5 from approximately 2 to more than 1000 μg m−3 min). In addition, by using EPR spectroscopy, we measured environmentally persistent free radicals (EPFRs) that formed from heating and cooking processes at levels of approximately 109 spins μg−1 of PM mass. These EPFR concentrations were shown to be unaffected by ozone exposure.

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Impact of Cooking Methods on Indoor Air Quality: A Comparative Study of Particulate Matter (PM) and Volatile Organic Compound (VOC) Emissions

Tang,

Sahu,

et al. 2024

Indoor Air

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Indoor cooking and cleaning as a source of outdoor air pollution in urban environments

Abstract: Indoor sources of air pollution, such as from cooking and cleaning, play a key role in indoor gas-phase chemistry. The focus of the impact of these activities on air quality...

Cited by 1 publication

References 102 publications

Impact of Cooking Methods on Indoor Air Quality: A Comparative Study of Particulate Matter (PM) and Volatile Organic Compound (VOC) Emissions

Impact of Cooking Methods on Indoor Air Quality: A Comparative Study of Particulate Matter (PM) and Volatile Organic Compound (VOC) Emissions

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