The health problems that may be associated with diesel exhaust are not fully understood.

Nastri even states that diesel exhaust is a likely carcinogen.

The children learn about idle reduction and ways the community can help reduce the health risks from diesel exhaust.

Very fine particles, like those in diesel exhaust, are believed to shorten the lives of 70,000 Americans a year.

The diesel exhaust hung and drifted in the hot still air.

This is a list of chemical components that have been found in diesel exhaust.

Mr. Green is right to point out the relationship between diesel exhaust and asthma.

In ascent, the bus pants a trail of diesel exhaust.

Diane pointed out that the diesel exhaust stayed in the air while the salt mist did not.

According to environmental experts, diesel exhaust can also contribute to high asthma rates.