Southern California has some of the worst traffic and air pollution in the United States. That can be annoying for motorists stuck in their air-conditioned cars. But Professor W. James Gauderman says it can be hazardous for children who live and play close to the highway.

南加州是全美国交通和空气污染最严重的地区之一。坐汽车的人们乘坐有空调的汽车就经常为此烦恼。但是，W. James Gauderman 教授指出，这对那些居住和经常在公路附近玩耍的孩子们来说是非常危险的。

"If you live both near a freeway and in an area of high air pollution, our results suggest that you're getting, in a sense, a doubling of the effect -- both the regional pollution levels that the children are breathing as well as the air that they are breathing, that is coming out of the tail pipe."

“如果你住在高速公路附近并且是一个严重空气污染的地区，我们的研究表明，在某种意义上来说，你会遭受双倍的污染损害——儿童会遭受地区污染以及从汽车中排出的尾气污染。”

Professor Gauderman of the University of Southern California Medical School co-authored a study of children who live within 500 meters of a busy thoroughfare. What he discovered was that lung capacity in these children was far weaker than in those kids who live at least 1500 meters away. That sets up a greater risk for childhood respiratory problems, like asthma.

Gauderman 教授是南加州医科学院的教授，他在合著的研究里指出，他发现那些居住在交通拥挤地区500米以内的儿童的肺容量远远小于那些住在1500米以外的儿童。这表明，这大大增加了儿童患呼吸道疾病的风险，比如哮喘。

Southern California has some of the worst traffic and air pollution in the United States. That can be annoying for motorists stuck in their air-conditioned cars. But Professor W. James Gauderman says it can be hazardous for children who live and play close to the highway. "If you live both near a freeway and in an area of high air pollution, our results suggest that you're getting, in a sense, a doubling of the effect -- both the regional pollution levels that the children are breathing as well as the air that they are breathing, that is coming out of the tail pipe. " Professor Gauderman of the University of Southern California Medical School co-authored a study of children who live within 500 meters of a busy thoroughfare. What he discovered was that lung capacity in these children was far weaker than in those kids who live at least 1500 meters away. That sets up a greater risk for childhood respiratory problems, like asthma.