Health effects of real-world exposure to diesel exhaust in persons with asthma.

Many people, including people with asthma, experience short-term exposure to diesel exhaust (DE*) during daily activities. The health effects of such exposures, however, remain poorly understood. The present study utilized a real-world setting to examine whether short-term DE exposure would (1) worsen asthma symptoms, (2) augment airway inflammation, or (3) increase oxidative stress burdens.

Respiratory effects of exposure to diesel traffic in persons with asthma.

Background: Air pollution from road traffic is a serious health hazard, and people with preexisting respiratory disease may be at increased risk. We investigated the effects of short-term exposure to diesel traffic in people with asthma in an urban, roadside environment.

Methods: We recruited 60 adults with either mild or moderate asthma to participate in a randomized, crossover study.