27/04/17

德里的污染困境追溯到卡车

People try to protect themselves from the smoke as a truck fumigates
版权:Panos

Speed read

  • 白天实施了奇数方案,以减少交通和空气污染
  • But emissions from trucks that ply at night made the scheme ineffective
  • 提高燃油质量和公共交通是可能的解决方案

发送to a friend

您在此页面上提供的详细信息将不会用于发送未经请求的电子邮件,也不会出售给第三方。请参阅隐私政策。

[NEW DELHI] In 2016, the local government of Delhi experimented with allowing private cars to ply the roads on alternate days only, according to odd or even registration numbers. The scheme attracted a lot of interest, but it was never clear if it succeeded in improving air quality in Delhi.

A recent学习说,确实有一个是“奇偶”计划e impact. The gains from halving the number of private cars on the roads, however, were offset by emissions from heavy goods vehicles that were allowed to ply during night hours, according to the study carried out by researchers from the University of Surrey and the University of Birmingham in the UK and the Indian Institute of Technology and the National Environmental Engineering and Research Centre based in New Delhi.

“一种方法是为所有车辆使用更清洁的燃料和技术。”

印度科学学院Ashish Verma

These results show that cutting downair pollution不仅仅是减少道路上的车辆数量,还需要更多的计划。

“Restricting the night hours during which trucks are allowed into Delhi would help reduce pollution levels, as it would give pollutants time to disperse,” says Prashanth Kumar, lead author of the study and professor at the University of Surrey.

“However, the issue of heavy goods vehicles is a difficult one to address since it is essential for economic activity,” says Ashish Verma, associate professor at the Indian Institute of Science, Bangalore. “One way out is to use cleaner fuel andtechnologyfor all vehicles.”

车辆排气,工业排放,生物质燃烧以及北部平原上农业废物的燃烧,使德里的空气高度受到污染。德里和许多其他印度城镇中悬浮的颗粒物浓度远远超出了指导方针。

虽然使用公共交通可以减少交通拥堵和空气污染,但印度城市缺乏公众运输系统班加罗尔印度科学学院副教授Ashish Verma说,这提供了端到端的连通性。

“A complementary set of政策像拥堵指控,停车限制,公共交通优先级,行人化和清洁交通模式的激励措施一样。” Verma说。

库马尔(Kumar)认为,在改善燃油质量的同时,它可以削减来源的排放量,但“更可持续的解决方案在于加强公共交通工具并引入电动和燃料燃料车辆”。

This piece was produced by SciDev.Net’s Asia & Pacific desk.