蜜臀av性久久久久|国产免费久久精品99|国产99久久久久久免费|成人精品一区二区三区在线|日韩精品一区二区av在线|国产亚洲欧美在线观看四区|色噜噜综合亚洲av中文无码|99久久久国产精品免费播放器

<cite id="ygcks"><center id="ygcks"></center></cite>
  • 
    
  • <rt id="ygcks"></rt>
    <cite id="ygcks"></cite>
  • <li id="ygcks"><source id="ygcks"></source></li> <button id="ygcks"></button>
  • <button id="ygcks"></button>
    <button id="ygcks"><input id="ygcks"></input></button>
    
    
    <abbr id="ygcks"><source id="ygcks"></source></abbr>
    
    

    Madrid's air quality improves in 2018

    Source: Xinhua| 2019-01-10 00:06:19|Editor: Mu Xuequan

    MADRID, Jan. 9 (Xinhua) -- Air quality in the Spanish capital of Madrid improved in 2018, according to a report published by the Ecologists in Action (Ecologistas en Accion) pressure group on Wednesday.

    Ecologists in Action considers that over the past year air quality in Madrid was "relatively good" with a "notable decrease" in pollution as compared to previous years. However, the group also highlights that 2018 was the ninth consecutive year in which nitrogen dioxide (NO2) levels were above the legal limit of 40 micrograms per cubic meter.

    The study was based on air quality samples taken from 24 monitoring stations in the city, with NO2 levels at 7 stations exceeding the legal limit. In 2017, samples from 15 exceeded the limit.

    Meanwhile, none of the stations detected higher than permitted levels of particulate matter in the air, although the report points out that the levels registered are still "far higher than World Health Organization recommendations."

    The pressure group puts the reduction in air pollution down to two key factors: "favorable" (i.e. wet) weather conditions for much of last year and anti-pollution measures taken by Madrid City Hall. One such measure is the recently introduced 'Madrid Central' scheme, which limits access to parts of the city center to either low-emission vehicles or those belonging to residents.

    Ecologists in Action also stresses that weather conditions are susceptible to change. On three occasions in December 2018 and during the first six days of 2019, clear, dry and calm conditions saw NO2 levels rise, causing City Hall to put anti-pollution protocols into operation.

    These protocols place further restrictions on traffic, which the ecologists insist is still "by far" the main cause of air pollution in Madrid.

    TOP STORIES
    EDITOR’S CHOICE
    MOST VIEWED
    EXPLORE XINHUANET
    010020070750000000000000011105091377317771
    柳州市| 淳化县| 东丽区| 昭平县| 东平县| 九龙坡区| 罗平县| 郑州市| 阜康市| 九江县| 临颍县| 邯郸县| 六安市| 曲松县| 易门县| 永兴县| 登封市| 新闻| 红原县| 合水县| 江陵县| 德化县| 英吉沙县| 城步| 双鸭山市| 嫩江县| 三明市| 巴林左旗| 板桥市| 安康市| 辛集市| 朔州市| 南岸区| 仁寿县| 天门市| 宜兰县| 新绛县| 蕉岭县| 平潭县| 梁平县| 长沙市|