Characteristics of particulate matter emissions from toy cars with electric motors

Xiaofei Wang, Brent J. Williams, Pratim Biswas

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


Aerosol emissions from toy cars with electric motors were characterized. Particle emission rates from the toy cars, as high as 7.47 × 107 particles/s, were measured. This emission rate is lower than other indoor sources such as smoking and cooking. The particles emitted from toy cars are generated from spark discharges inside the electric motors that power the toy cars. Size distribution measurements indicated that most particles were below 100 nm in diameter. Copper was the dominant inorganic species in these particles. By deploying aerosol mass spectrometers, high concentrations of particulate organic matter were also detected and characterized in detail. Several organic compounds were identified using a thermal desorption aerosol gas chromatography. The mass size distribution of particulate organic matter was bimodal. The formation mechanism of particulate organic matter from toy cars was elucidated.

Original languageEnglish (US)
Pages (from-to)492-499
Number of pages8
JournalJournal of the Air and Waste Management Association
Issue number4
StatePublished - 2015
Externally publishedYes

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© 2015 A&WMA.


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