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Our work makes novel emissions measurements of isocyanic acid, a toxic gas, from a modern-day diesel engine and finds that diesel engines emit isocyanic acid but the emissions control devices do not enhance or destroy the isocyanic acid. Air quality model calculations suggest that diesel engines are possibly important sources of isocyanic acid in urban environments although the isocyanic acid levels are ten times lower than levels linked to adverse human health effects.
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Articles | Volume 17, issue 14
Atmos. Chem. Phys., 17, 8959–8970, 2017
https://doi.org/10.5194/acp-17-8959-2017
Atmos. Chem. Phys., 17, 8959–8970, 2017
https://doi.org/10.5194/acp-17-8959-2017

Research article 26 Jul 2017

Research article | 26 Jul 2017

Investigating diesel engines as an atmospheric source of isocyanic acid in urban areas

Shantanu H. Jathar et al.

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Short summary
Our work makes novel emissions measurements of isocyanic acid, a toxic gas, from a modern-day diesel engine and finds that diesel engines emit isocyanic acid but the emissions control devices do not enhance or destroy the isocyanic acid. Air quality model calculations suggest that diesel engines are possibly important sources of isocyanic acid in urban environments although the isocyanic acid levels are ten times lower than levels linked to adverse human health effects.
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