National Toxicology Program

National Toxicology Program
http://ntp.niehs.nih.gov/go/nm-n21003

Nomination Summary for Compressed Natural Gas Engine Emissions (N21003)

Compressed Natural Gas Engine Emissions

Specific Substances: Compressed Natural Gas Particulate Matter

Nomination Date: 01/12/2010

Nominator: Private Individual

Rationale: Diesel Particulate Matter is classified as Probably Carcinogenic to Humans by IARC, and Reasonably Anticipated by NTP based on sufficient evidence of increased lung tumors in rats. Gasoline engine emissions are classified at possibly carcinogenic by IARC. Emissions from compressed natural gas engines have not been tested to in the bioassay to my knowledge. CNG engines emit lower mass than diesel, but similar number of particles.

NTP Principles: not specified

Status: Received


Agents and Status

The following information relates to the specific agent and may include history from earlier or later nominations for this same agent.

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CASRN: CNGPARTIC

Agent Name: Compressed Natural Gas Particulate Matter

  • No studies are available.
NTP is located at the National Institute of Environmental Health Sciences, part of the National Institutes of Health.