北京上半年PM2.5历史同期最好,明年新能源车保有量40万辆左右


In 2019, the Beijing International Metropolis Clean Air Action Forum opened in Beijing in the morning. It is reported that as of the end of June, the cumulative concentration of PM2.5 in Beijing in the first half of this year was 46 μg/m3, the best level in the historical period.

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Data Map: New Energy Vehicle Xinhua News Agency

Beijing will continue to implement various measures to win the blue sky defense war, especially to adjust the transportation structure, promote the low emission of mobile sources, and promote the electrification of vehicles with the focus on heavy-duty diesel vehicles. By the end of 2020, the city will realize the number of new energy vehicles in the city. About ten thousand.

According to reports, during the forum, officials from the United Nations Environment Programme, Paris, London, Berlin, Tokyo, Seoul, Hong Kong and other international metropolises, as well as air and climate change officials in typical regions such as California and Lombardy, Italy And experts will share their respective governance experiences, plans and outlooks, and provide international experience for Beijing to accurately control air pollution and combat climate change.

Li Xiang, director of the Atmospheric Environment Division of the Municipal Ecological Environment Bureau, said in a report in the morning that Beijing focused on reducing nitrogen oxides and volatile organic compounds, focusing on motor vehicles, dust and production and living sources, and formulating and implementing a win-win blue sky defense war 2018. The action plan for the year to 2020 will promote the continuous improvement of the quality of the atmospheric environment. It is necessary to optimize the adjustment of the transportation structure and promote the low emission of mobile sources. Li Xiang said that by 2017, the proportion of gasoline vehicles in Beijing has reached 49%. In the future, we will vigorously promote the electrification of vehicles with the focus on heavy-duty diesel vehicles, and simultaneously promote the supporting policies and infrastructure construction of new energy vehicles and roads, and Check the high-emission vehicles, this year, the national three diesel vehicles will be banned in the city. By the end of 2020, the number of new energy vehicles in the city will be around 400,000. In addition, in terms of urban environmental management, it is necessary to strengthen construction dust control, improve road dust control level, and strengthen bare ground dust control.

xx上午,中国工程院院士,清华大学环境学院院长何克斌介绍了近20年来北京空气污染控制的实践和成效。何克斌说,近年来,北京的国内生产总值增长了10.8倍,人口增长了74%,机动车拥有量增加了351%,能源消耗总量增加了86%。然而,北京的空气质量明显改善。从1998年到2017年,北京二氧化硫,二氧化氮和PM10的年平均浓度分别下降了93%,38%和55%。 2013年至2017年的下降尤为显着。特别是对于挥发性有机化合物,北京是该国少数几个实现增量增长和库存的城市之一。

何克斌还指出,仅仅依靠北京的努力,大气控制的作用仍然有限。因此,有必要加强联合防控,对周边地区的空气污染进行协调控制。在过去几年中,区域协同效应取得了显着成效。例如,2014年冬季抵达北京的污染气团比例为47%,而2017年冬季,这一比例已降至20%。

何克斌建议北京今后进一步加强空气污染控制。在机动车方面,要做好车辆,石油和道路的协调管理。有必要进一步加强PM2.5与臭氧的协调管理,因为随着PM2.5浓度的降低,臭氧将继续“跳涨”。另外,要搞好能源结构调整和节能,加强对生命来源的控制。

来源:北京晚报记者张航