I talked to one expert from the American Lung Association who talked about pregnant women also being at risk.

我采访了美国肺脏协会的一位专家，他谈到孕妇也有风险。

The American Lung Association notes that smoky air can be a problem for young children because they breathe in more air relative to their body weight than adults.

美国肺脏协会指出，烟雾弥漫的空气对幼儿来说可能是一个问题，因为相对于他们的体重，他们吸入的空气比成年人更多。

Things are not as bad as they once were, but according to the American Lung Association, Los Angeles is still the worst city in the United States for levels of pollutants.

虽然现在的情况已经不像以前那么糟糕了，但是根据美国肺脏协会，洛杉矶仍然是美国污染物水平最高的城市。

It's not good. I spoke with Paul Billings at the American Lung Association, who has worked with air pollution for 30 years, who said that he's never seen anything like this.

空气并不好。我采访了美国肺脏协会的保罗·比林斯，他从事空气污染方面的工作有 30 年了，他说他从未见过这样糟糕的情况。