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As summertime approaches and warmer weather moves in, air pollution becomes an increasing problem across the U.S.
随着夏季的到来，炎热的天气也逐渐靠近，美国的空气污染也成为了更严重的问题。
People with asthma, a condition affecting 1 in 12 Americans, are especially impacted by deteriorating air quality.
患有哮喘的人——美国有1/12的人都患有此病，会更受恶化的空气质量的影响。
Pollution can inflame the lungs, cause respiratory distress, and result in permanent lung damage.
污染会影响肺部，导致呼吸窘迫，并造成永久性的肺部损坏。
Each day, the Environmental Protection Agency produces an Air Quality Index for more than 400 U.S. cities.
环境保护署每天都会为400多座美国城市制作出一个空气质量指数。
If you have asthma and other respiratory or heart conditions, check the air quality in your area to plan exercise and other outdoor activities.
如果你患有哮喘，或者其他呼吸或心脏病，一定要检查当地的空气质量，以此来安排锻炼和其他户外活动。
译文属可可英语原创，未经允许，不得转载。
