Particle emissions of a diesel car fueled with coal to liquids (CTL) on road were tested.The particle number and size distribution were mainly studied.Three typical roads were adopted in this test, including urban arterial roads, secondary roads and freeways.The results show that transient particle number of the car has a corresponding relationship with the vehicle speed.With the speed increasing, the number of both nucleation mode particles and accumulation mode particles increase continuously.With the CTL blend ratio increasing, the number of nucleation mode particles and accumulation mode particles decreases, especially accumulation mode particles whose size are more than 100nm diameter.With the CTL blend ratio increasing, the particle numbers in the three typical roads show downward trends, especially on freeways.It shows that the CTL fuel can distinctly reduce the exhaust particle number of diesel cars on road.

关键词：柴油汽车;煤液体;道路;粒子排放

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Recent studies have indicated that the accuracy of the emissions estimation in a traffic simulation model can be little improved by using the traditional model calibration approaches. Instead, the model's internal mechanism in depicting the second-by-second vehicle activities needs to be investigated. Since the car-following model is the core component of a traffic simulation model, this paper attempts to conduct a comparative study of car-following models concerning their effects on the explanatory parameter of vehicle emissions, namely, the vehicle specific power (VSP) distribution. The car-following models selected for the analysis are the optimal velocity model (OVM), generalized force model (GFM), full velocity difference model (FVDM), Wiedemann model, and the Fritzsche model. Massive field car-following trajectories are collected, and a numerical simulation method is designed for each car-following model to generate its vehicle trajectories and the speed-specific VSP distributions. By a comparison of VSP distributions collected from the field and generated by car-following models, it was found that OVMs and GFMs generate unrealistic VSP distributions, which will lead to significant emissions estimation errors. By adding the variable of positive velocity difference, the FVDM can effectively improve the accuracy of the VSP distribution and emissions estimation. The VSP distribution of the Wiedemann model differs largely from the field data, which overestimate the peak VSP fraction and the fractions in aggressive driving modes. The Fritzsche model produces VSP distributions consistent with the field distributions. It is also found that the speed-specific VSP distribution is highly correlated with the acceleration distribution. Therefore, improving the accuracy of the speed-specific acceleration distribution is an effective measure to improve the accuracy of the VSP distribution and thus the emissions estimation of the car-following models.

关键词：车辆；碳排放；交通仿真模型；环境监测

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9月，环境保护财政支出继续大幅度增长，累计同比增长14.6%，环保支出财政占比达到2.03%，创下全年新高，符合预期预计年底之前环保财政支出有望继续保持较高增速。

关键词：环保；总体形势

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备受关注的土壤污染防治法有望三年内出台。据全国人大环资委法案室副处长丁敏介绍，“根据立法规划，将于2015 年着手起草草案并征求各方意见，2016 年底前修改和完善后将提请全国人大常委会审议。”丁敏指出，目前全国土壤污染防治工作的形势十分严峻，各地污染的基本情况尚需进一步摸清。除了污染数据匮乏外，防治技术不成熟、治理资金缺口巨大等也是行业亟需解决的关键问题。2013 年9 月起，全国人大环资委已紧锣密鼓的开展了土壤污染防治立法相关工作。“在十二届全国人大常委会立法规划表中，土壤污染防治法（草案）排在第一位。”根据时间表，今年的主要工作包括了解、熟悉土壤污染和防治的有关知识、情况、技术等。2015 年要着手起草和修改法律草案，重点和难点是征求和协调各方的意见。“预计将于2016 年底完成草案的修改和完善后，报送并提请全国人大常委会审议。2017 年以后，环资委将配合人大常委会完成审议。”

关键词：节能环保；市场要闻

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国务院总理李克强 10 月24 日主持召开国务院常务会议，决定创新重点领域投融资机制、为社会有效投资拓展更大空间，部署鲁甸地震灾后恢复重建工作、建设灾区宜居宜业新家园。

关键词：节能环保；市场要闻

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10 月24 日上午，上海市政府召开环境污染第三方治理工作推进会，表示将加快推进环境污染第三方治理工作。会议指出，在推进这项工作中要把握好五个关键，一是要健全责任体系。强化排污单位的治污主体责任，完善第三方治理责任体系和约束机制。二是要强化约束监督。

关键词：节能环保；市场要闻

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关键词：雾霾；经济社会；环境；支撑能力

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Facility management services refer to the usage of third-party service providers for the maintenance of a building or facility. It can also refer to the complete outsourcing of the management of an entire facility to an organization for professional delivery of services.

关键词：印度；设施管理；管理服务

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近日，广东省政府网站发布《广东省2014—2015 年节能减排低碳发展行动方案》(下称《方案》)，《方案》明确了今明两年该省节能、减排、低碳的具体目标——2014—2015 年，单位GDP 能耗分别下降3.4%、2.32%，单位GDP 二氧化碳排放量逐年下降3.5%以上。到2015 年，化学需氧量、氨氮、二氧化硫、氮氧化物排放量分别控制在170.1 万吨、20.39 万吨、71.5 万吨、109.9 万吨以内。

关键词：节能环保；市场要闻

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近日，全国煤电节能减排升级与改造动员电视电话会议召开。会议强调，煤电节能减排升级改造的基本目标就是要实现“三降低三提高”，即降低供电煤耗、降低污染物排放、降低煤炭占能源消费比重，提高安全运行质量、提高技术装备水平、提高电煤占煤炭消费的比重。

关键词：节能环保；市场要闻

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