One demonstrated some reduction in the impact of nearby traffic air pollution in a residence using an air filter while another failed to show any benefit. (mindbodygreen.com)
A dog that has yet to be trained may need to stay on the leash when the dog park is open, as some dogs will happily run into nearby traffic without any thought. (caringpets.org)
Over four weeks in a parking lot of the California Institute of Technology, in Pasadena, Hayes analyzed air coming from nearby traffic - heavy Los Angeles, drawn through a tube in the roof of a modified construction trailer. (sciencedaily.com)