[mailchimp_signup][/mailchimp_signup]The current daily limit is 35 micrograms per cubic metre for PM10, but that figure was exceeded at 30% of Europe’s urban traffic air pollution monitoring points in 2009, including major cities in Poland, Italy, Sweden and Latvia. A parallel finding is that between 18% and 40% of Europe’s urban population is exposed to PM10 levels higher than the daily threshold. The Commission has launched infringement proceedings against a number of member states.

• 西班牙政府在国家空气质量改善计划中有针对性的道路排放。该计划有90项措施，包括引入低排放区，确保更清洁的道路表面，重新引入速度限制，促销机制的激励，以及更严格的车辆检查。