Adults older than 65 also should be careful with wildfire smoke exposure.

65 岁以上的成年人也应小心野火烟雾接触。

And here is Wodan's call just three months later, after smoke exposure.

这是沃丹在接触烟雾三个月后的叫声。

There is no safe level of secondhand smoke exposure which can cause a number of health problems, including asthma in children.

二手烟暴露并没有安全限值，它会引发很多的健康问题，包括儿童哮喘。

And while previous years have seen a few days or a week at most of smoke exposure, now they're looking at months.

虽然前几年大部分时间都暴露在雾霾中几天或一周，但现在他们观察到的时间长度是几个月。

Kari Nadeau at Harvard University told me that some research has found the increased risk of stroke goes up by 40 percent from wildfire smoke exposure.

哈佛大学的卡里·纳多告诉我，一些研究发现，接触野火烟雾会使中风风险增加 40%。

Maybe they had secondhand smoke exposure in the home, maybe there's a genetic factor, but it's pretty scary that non-smokers still get lung cancer at a pretty significant rate.

也许他们在家里接触过二手烟，也许有遗传因素，但是非常可怕的是，不吸烟者仍然以相当高的比率患肺癌。