日批在线视频_内射毛片内射国产夫妻_亚洲三级小视频_在线观看亚洲大片短视频_女性向h片资源在线观看_亚洲最大网

USEUROPEAFRICAASIA 中文雙語Fran?ais
China
Home / China / Top Stories

Cooking, pollution linked to high blood pressure

By Agence France-Presse in Washington | China Daily | Updated: 2014-08-27 06:57

Women in China who are exposed to pollution from cooking stoves and highways face a greater risk of high blood pressure, according to researchers.

A study published on Monday in the Proceedings of the National Academy of Sciences focused on the role of black carbon, which after carbon dioxide is the second leading human-caused emission driving climate change.

Black carbon comes from burning wood, coal and fossil fuels. About half of Chinese households cook with coal and wood, the researchers said.

The study involved 280 women living in a rural area of Yunnan province, with an average age of 52. Eighteen percent were overweight and 4 percent were obese at the start of the survey.

The women wore portable air samplers that collected particulate matter smaller than 2.5 micrometers, a size commonly associated with adverse health effects.

Black carbon exposure was linked to higher blood pressure, a leading risk factor for heart disease.

"We found that exposure to black carbon pollutants had the largest impact on women's blood pressure, which directly impacts cardiovascular risk," said lead author Jill Baumgartner, an assistant professor at McGill University.

"Black carbon's effect was twice that of particulate matter, the pollutant measured most often in health studies or evaluating cleaner cookstoves."

Living within about 200 meters of a highway was associated with a threefold higher systolic blood pressure - the greater of the two numbers that measure blood pressure - when compared with women who lived farther from a highway.

The study authors said, "We found an indication that the cardiovascular effect of black carbon from biomass smoke may be stronger if there is co-exposure to motor vehicle emissions."

Reducing such exposure "should lead to a reduction in the adverse health and climate impacts of air pollution".

Previous studies in Latin America have shown that when older women switched from traditional open-fire stoves to less-polluting chimney stoves, their blood pressure dropped.

Baumgartner said, "We found that black carbon from wood smoke negatively affects cardiovascular health, and that the health effects of wood smoke are exacerbated by co-exposure to motor vehicle emissions."

Editor's picks
Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
License for publishing multimedia online 0108263

Registration Number: 130349
FOLLOW US
主站蜘蛛池模板: 欧美三级欧美一级 | 黄色在线免费网站 | 超碰九七| 欧美永久免费 | 亚洲一区二区三区视频 | 欧美日本在线视频 | 亚洲图片另类 | 欧美激情一区二区三区 | 欧美日韩在线观看成人 | 久久综合久久综合久久综合 | 久久国产一区二区三区 | 亚洲欧美字幕 | 中文字幕日日夜夜 | 亚洲男人天堂影院 | 神马午夜激情 | 青青草日本 | 快灬快灬一下爽蜜桃在线观看 | 日日夜夜精品视频免费 | 亚洲男女啪啪 | 91精品视频在线 | 久久久久久久久久久国产精品 | 亚洲天堂影视 | 日韩三级在线观看视频 | 中文字幕在线日亚洲9 | 国产精品美女在线 | 成人性色生活片 | 成人av手机在线 | 欧美一区二区在线视频 | 国产精品久久久影院 | 五月婷色| 日本吃奶摸下激烈网站动漫 | 日韩www | 欧美国产精品一区二区三区 | 久久久久久91香蕉国产 | 久久影院视频 | 黄色片免费在线播放 | 伊人色影院| 久久精品综合 | 国产高清精品在线 | 欧美视频免费 | 天堂久久久久久 |