亚洲精品无播放在线播放,精品国精品自拍自在线,免费国产污网站在线观看不要卡,97色欧美视频在线观看,久久精品本无码一本,国产精品高清视亚洲一区二区,全部无码特级毛片免费播放

 

Air pollution raises risk of heart disease

0 CommentsPrint E-mail Xinhua, May 11, 2010
Adjust font size:

People exposed to air pollution face greater risk of heart attack, stroke and cardiovascular death, the American Heart Association (AHA) warned on Monday.

The AHA pointed to fine particulate matter as the most evident threat because its tiny size makes it more likely to infiltrate even the smallest airways.

Fine particulate matter, which is called PM2.5 by scientists because the particles have a diameter of 2.5 micrometers or less, is the type of air pollution most likely to cause cardiovascular disease, the AHA said in an updated report on air pollution.

"Particulate matter appears to directly increased risk by triggering events in susceptible individuals within hours to days of an increased level of exposure, even among those who otherwise may have been healthy for years," report lead author Dr. Robert D. Brook said in an AHA news release.

"Growing evidence also shows that longer-term PM 2.5 exposures, such as over a few years, can lead to an even larger increase in these health risks," he added.

As a result, fine particulate matter "should be recognized as a 'modifiable factor' that contributes to cardiovascular morbidity and mortality," the AHA report said.

Those at highest risk from PM2.5 exposure include the elderly, people with existing heart diseases, and possibly those with diabetes, according to the report.

Major sources of PM 2.5 include fossil fuel combustion from industry, traffic and power generation, according to the report.

Print E-mail Bookmark and Share

Go to Forum >>0 Comments

No comments.

Add your comments...

  • User Name Required
  • Your Comment
  • Racist, abusive and off-topic comments may be removed by the moderator.
Send your storiesGet more from China.org.cnMobileRSSNewsletter
  • <th id="fomfv"></th><noscript id="fomfv"></noscript>

    <fieldset id="fomfv"><font id="fomfv"></font></fieldset><sup id="fomfv"><menuitem id="fomfv"></menuitem></sup>

    1. <dfn id="fomfv"></dfn>
        1. 亚洲精品无播放在线播放,精品国精品自拍自在线,免费国产污网站在线观看不要卡,97色欧美视频在线观看,久久精品本无码一本,国产精品高清视亚洲一区二区,全部无码特级毛片免费播放 毛片无码免费无码播放 国产精品美女乱子伦高潮 久久男人av资源网站无码 亚洲精品中文字幕AV一本 国产成年无码V片在线 特级毛片直接看不用下载 亚洲深夜无码视频