零起点美语-Heart Attack Risk Seen from Car Emissions

Heart Attack Risk Seen from Car Emissions

(WASHINGTON, Reuters) Research shows that two hours of exposure to elevated levels of car emissions raises the likelihood of a heart attack.
The risk of a heart attack increases 48 percent in the two hours after exposure and there is an increased risk even 24 hours after exposure.
People should avoid going outside for a long period of time when air quality is poor.
汽车排废气会引发心脏病
【路透社华盛顿电】研究显示，接触高浓度汽车排废气达两个小时时，会提高心脏病发的可能性。
接触废气两个小时之后，心脏病发的危险性增加了48%，甚至经过廿四个小时之后也仍有增加心脏病发作的危险。
空气品质差的时候，民众应该避免长时间外出。