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Beijing congested road PM2.5 exceeded twice the number of ve…

Published:2013-07-31 08:49 Click:wait for……
summary:Beijing congested road PM2.5 exceeded twice the number of vehicles to be controlled Beijing motor vehicle population has exceeded 5.3 million, the contribution rate of 22.2% for PM2.5. In this regard, the Municipal Standing Committee last w...
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Beijing congested road PM2.5 exceeded twice the number of vehicles to be controlled

    Beijing motor vehicle population has exceeded 5.3 million, the contribution rate of 22.2% for PM2.5. In this regard, the Municipal Standing Committee last week, the "Beijing Air Pollution Control Ordinance (draft)", the various sections of the prevention of motor vehicle pollution were provided. In expert opinion, since the formation of traffic jams vehicle exhaust pollution is more noteworthy. Reporters yesterday held measuring instruments field visits found that the congested road vehicle PM2.5 index exceeded several times over when no traffic jams.

Beijing News News PM2.5 data when no traffic jams of 25 to 30 micrograms / cubic meter, traffic jams data is 90-100 micrograms / cubic meter. This is a reporter yesterday in the West Second Ring measured data.


PM2.5 values ​​for the usual traffic jam 3 times

    According to data provided by the environmental protection department of Beijing, Beijing vehicle population has exceeded 5.3 million, vehicle exhaust emissions on urban air pollution power-sharing about 20% ~ 23%, including nitrogen oxides, sulfur dioxide, PM2.5, etc. . PM2.5 emissions from vehicle exhaust and oil quality, but it also related with traffic jams.

    Data show that traffic jams, that the vehicle idling case, since the combustion gas in the engine is not sufficient, then the pollutant emissions than in the case of normal driving six times. According to this data, as contamination may account for the formation of traffic jams more important factor.

    Yesterday 10:00, PM2.5 pollution concentration is excellent hourly level, reporters and non-governmental environmental organization "Nature university" volunteer Chen Guanghui in the North Fourth Ring Road, West Second Ring measured PM2.5 data at 25-30 micrograms / cubic meter, with the Beijing Municipal Environmental Monitoring Center released the fact that data is consistent.

    15:00, West Second Ring began congestion, traffic is slow, reporters and volunteers held monitoring instruments in the West Second Ring Road subway station north of Fuxingmennei congested road select three points, each spaced about 100 meters, measured Data in the 90-100 mg / m, between the average value of three times the state.

For monitoring results, the natural environmental NGO researcher Wang Qiuxia that regional and smooth traffic congestion area, PM2.5 difference more obvious. Is a 75-day average of PM2.5 standards, compared to the standard view, 90 micrograms / cubic meter data is high, long traffic jams where people breathe, and will definitely be some health damage.


Number of motor vehicle regulation proposed implementation into law

    In fact, motor vehicle exhaust pollution has caused Beijing official attention. By the end of 2010 the introduction of the small passenger car Yaohao policy, that small number of passenger cars on the control.

    In last week's deliberations, "Beijing Air Pollution Prevention Regulations (draft)", the Beijing Municipal People's Congress deputy director Sun Kanglin said that the car must have total control, otherwise rapid growth of motor vehicles, air pollution control is difficult to achieve the objectives.

    The Bill also made it clear that the implementation of the number of the motor vehicle regulation. Serious contamination in the atmosphere may be suspended part of the motor vehicle. In addition, according to the municipal government air quality conditions in a certain area to restrict motor vehicle traffic management measures.

    Further strict access, add the second half of heavy-duty diesel vehicles (buses, sanitation trucks except) Implementation Stage IV emission standards, the new non-road power machinery to implement the third phase of emission standards. Continue to implement the phase-out of old vehicles update policies to ensure that exceeded 180,000 out of the task. Accelerate public transport, sanitation, postal and other strategic areas of clean vehicles. And carry out the muck, garbage vehicles sealed transformation work. Increase coordination of efforts, the introduction of new taxi during the early retirement policies and supporting measures. Strengthen in-service vehicles, non-road power machinery, oil quality and add detergent regulation. Intensify research to guide the introduction of reduced intensity of the whole society vehicles on public policy. - Beijing in 2013 to analyze the economic situation in the first half of

    Full implementation of the fifth stage of emission standards for light-duty vehicles, buses, heavy trucks sanitation Phase V vehicle emission standards. Promote the use of new energy vehicles, the development and implementation of the "Beijing private purchase of pure electric passenger cars run management approach (Trial)." Implementation "to further promote the city out of the old motor vehicle replacement program (2013-2014)", and strive to eliminate the old high emissions of about 180,000 vehicles. Implement the Ministry of Commerce and other ministries issued a "motor vehicle standards mandatory retirement provisions" to study and formulate the city taxi early retirement measure. - Beijing 2013 Clean Air Action Plan task decomposition table

■ initiatives

Four buses have renewed energy into

    New energy and clean energy bus to reach half of the year after, in 2017 as 60%

    Beijing News News reporter yesterday from Beijing traffic department was informed that Beijing bus, the new energy and clean energy vehicles already accounted for four percent, the year after will reach half of 2017 reached Liu Cheng.

Diesel buses will be pressed to 50% the proportion of

    Currently, the Chang'an Avenue in Beijing and other key line running buses, it has been changed from the original diesel LNG (liquefied natural gas) clean energy vehicles.

    322 Lu Jing Tong Expressway is the more important one of the lines on the road, connecting Sihui and Tongzhou Wuyihuayuan, reporters yesterday that the line has changed the original diesel car a new car for LNG clean energy vehicles.

    These vehicles began in March this year, replaced. Compared to the original would "hiccup" diesel cars, new cars driving up more quiet, can not hear the noise, and smooth operation. Data show that the new LNG buses and diesel vehicles compared to integrated pollution emissions reduced by about 85%, PM2.5 emissions can be reduced more than 97%.

    There are estimates that a bus exhaust emissions equivalent to 50 cars. Currently, Beijing has more than 20,000 buses, if all vehicles to LNG, equivalent to the transformation of one million cars.

    Last December, the Beijing Municipal Traffic Commission official has said that the Group had a total transit buses 21,000, about 18,000 diesel buses, in the future, the proportion of diesel buses will be compressed to about 50%.

New this year purchased 3000 Yuqing Jie energy bus

    Beijing Public Transport Group, said that this year will total purchase updated 3155 buses, all for LNG Clean Energy air-conditioned car. By then, the Beijing Public Transport Group to natural gas as a clean energy buses will reach 5681.

    Beijing traffic department official said that as of now, in the bus, the new energy and clean energy vehicles proportion has reached four percent. The city is vigorously promoting energy-saving public transport vehicles. Expected in 2015, Beijing clean energy and new energy bus ownership holdings account for the city's bus half is expected by the end of 2017, this proportion will reach Liu Cheng.

    It is understood that last year, Beijing Public Transport Group, all buses have reached or exceeded the National III emission standards.

    Bus Group introduced as the vehicle environmental standards, reduce emissions 1,517,263 tons per year, of which 396,265 tons of carbon monoxide emissions, nitrogen oxide emissions 1,068,163 tons, PM2.5 emissions 52,835 tons.

■ Monitoring

PM2.5 diesel engine bus a surge 7 times

    13:00 yesterday, Dongzhimen transportation hub station where buses have 10 or so at idle, when measured PM2.5 value of 80 micrograms / cubic meter.

    To visualize get diesel exhaust on PM2.5 "contribution", the volunteers Chen Guanghui will collimate a transit vehicle exhaust pipe. In the idle state, the instrument monitoring data from 80 micrograms / cubic meter into 557 micrograms / cubic meter. When the driver depresses the accelerator, the instrument displays the PM2.5 data instantly soared to 4180 micrograms / cubic meter.

New energy bus launched an instant value slightly changed

    2 pm yesterday, the Chang'an Avenue side of a bus station, reporters and volunteers select a new energy bus route LNG will align the exhaust pipe monitoring instrumentation, data is still maintained at an average state 30 ug / cubic meters, Subsequently car to start moment, data becomes 40 mg / m, almost no change.

    Then align a 82 channel monitoring equipment, idle state value of 145 micrograms / cubic meter, the car starts instantly value becomes 259 micrograms / cubic meter, little change.