密歇根新闻广播 密歇根新空气质量报告让你一瞥城市概况

Every year, the American Lung Association looks at the state of air pollution in U.S. cities. This year's State of the Air report is out.

The group analyzes¹ data from air quality monitors on two kinds of air pollution: ground-level ozone² pollution (aka smog) and particle pollution—tiny particles from power plants and our cars and trucks.

Lyndsay Moseley Alexander directs the American Lung Association's Healthy Air Campaign. She says both kinds of air pollution pose health risks.

"Particularly ozone pollution, when inhaled⁴, can cause coughing, it can trigger asthma⁵ attacks and also much more serious symptoms leading to premature⁶ death. And particle pollution is similarly ominous⁷. When we inhale³ tiny particles into our lungs, they can lodge⁸ deep there and cause asthma attacks. They can also cause lung cancer, heart attacks, strokes and also premature death," she says.

But she says many parts of Michigan are making progress in reducing both ozone and particle pollution.

"Only Grand Rapids remains⁹ ranked among the most polluted for ozone pollution. In fact, (it's) ranked 18th in the nation among most polluted cities for ozone pollution."

The Detroit-Ann Arbor¹⁰ metropolitan¹¹ area is ranked 44th most polluted for ozone. She says that's an improvement over previous years.

"What we're seeing is the average number of days when air is unhealthy to breathe have gone down."

But it's not all good news.

"The Detroit area is also in the top 25 most-polluted cities for year-round particle levels. Most cities in the nation improved. This area suffered worse levels."

She says the Detroit area did still meet federal standards for year-round particle pollution.

From the report:

The "State of the Air 2016" found continued improvement in air quality in 2012-2014, showing lower levels of year-round particle pollution and ozone. Still, more than half of all Americans—166 million people—live in counties where they are exposed to unhealthful levels of these pollutants¹².

Thanks to stronger standards for pollutants and for the sources of pollution, the United States has seen continued reduction in ozone and particle pollution as well as other pollutants for decades.

Overall, the best progress came in the continued reduction of ozone and year-round particle pollution, thanks to cleaner power plants and increased use of cleaner vehicles and engines. Continued progress to cleaner air remains crucial to reduce the risk of premature death, asthma attacks and lung cancer. However, a changing climate is making it harder to protect human health.

Moseley Alexander notes there are a number of counties in Michigan (and around the country) that lack air quality monitors—which means there are gaps in the data they have to work with.

1 analyzes   

v.分析( analyze的第三人称单数 )；分解；解释；对…进行心理分析

参考例句：

• This approach analyzes management by studying experience usually through cases. 这个学派通常从实例获得经验，用以分析管理。 来自辞典例句
• The econometrician analyzes statistical data. 经济计量学者要分析统计材料。 来自辞典例句

2 ozone   

n.臭氧，新鲜空气

参考例句：

• The ozone layer is a protective layer around the planet Earth.臭氧层是地球的保护层。
• The capacity of ozone can adjust according of requirement.臭氧的产量可根据需要或调节。

3 inhale   

v.吸入(气体等)，吸(烟)

参考例句：

• Don't inhale dust into your lung.别把灰尘吸进肺里。
• They are pleased to not inhale second hand smoke.他们很高兴他们再也不会吸到二手烟了。

4 inhaled   

v.吸入( inhale的过去式和过去分词 )

参考例句：

• She closed her eyes and inhaled deeply. 她合上双眼，深深吸了一口气。
• Janet inhaled sharply when she saw him. 珍妮特看到他时猛地吸了口气。 来自《简明英汉词典》

5 asthma   

n.气喘病，哮喘病

参考例句：

• I think he's having an asthma attack.我想他现在是哮喘病发作了。
• Its presence in allergic asthma is well known.它在过敏性气喘中的存在是大家很熟悉的。

6 premature   

adj.比预期时间早的；不成熟的，仓促的

参考例句：

• It is yet premature to predict the possible outcome of the dialogue.预言这次对话可能有什么结果为时尚早。
• The premature baby is doing well.那个早产的婴儿很健康。

7 ominous   

adj.不祥的，不吉的，预兆的，预示的

参考例句：

• Those black clouds look ominous for our picnic.那些乌云对我们的野餐来说是个不祥之兆。
• There was an ominous silence at the other end of the phone.电话那头出现了不祥的沉默。

8 lodge   

v.临时住宿，寄宿，寄存，容纳；n.传达室，小旅馆

参考例句：

• Is there anywhere that I can lodge in the village tonight?村里有我今晚过夜的地方吗？
• I shall lodge at the inn for two nights.我要在这家小店住两个晚上。

9 remains   

n.剩余物，残留物；遗体，遗迹

参考例句：

• He ate the remains of food hungrily.他狼吞虎咽地吃剩余的食物。
• The remains of the meal were fed to the dog.残羹剩饭喂狗了。

10 arbor   

n.凉亭；树木

参考例句：

• They sat in the arbor and chatted over tea.他们坐在凉亭里，边喝茶边聊天。
• You may have heard of Arbor Day at school.你可能在学校里听过植树节。

11 metropolitan   

adj.大城市的，大都会的

参考例句：

• Metropolitan buildings become taller than ever.大城市的建筑变得比以前更高。
• Metropolitan residents are used to fast rhythm.大都市的居民习惯于快节奏。

12 pollutants   

污染物质（尤指工业废物）( pollutant的名词复数 )

参考例句：

• Pollutants are constantly being released into the atmosphere. 污染物质正在不断地被排放到大气中去。
• The 1987 Amendments limit 301(g) discharges to a few well-studied nonconventional pollutants. 1987年的修正案把第301条（g）的普通排放限制施加在一些认真研究过的几种非常规污染物上。 来自英汉非文学 - 环境法 - 环境法