综合一区欧美国产,99国产麻豆免费精品,九九精品黄色录像,亚洲激情青青草,久久亚洲熟妇熟,中文字幕av在线播放,国产一区二区卡,九九久久国产精品,久久精品视频免费

USEUROPEAFRICAASIA 中文雙語(yǔ)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
孝感市| 开阳县| 班戈县| 丰原市| 台湾省| 广东省| 芦山县| 二连浩特市| 上犹县| 吴桥县| 沙坪坝区| 上饶县| 海安县| 海原县| 三明市| 仪陇县| 屯昌县| 井陉县| 杭锦旗| 漠河县| 湟中县| 阳江市| 泉州市| 栾城县| 东丽区| 满洲里市| 文安县| 永定县| 荥经县| 长寿区| 洛浦县| 武功县| 阿勒泰市| 濮阳市| 古田县| 石棉县| 师宗县| 道孚县| 涟源市| 天门市| 松桃|