id author title date pages extension mime words sentences flesch summary cache txt cord-346751-x3gd19kq Kelly, Frank J. Air Pollution and Asthma: Critical Targets for Effective Action 2020-11-08 .txt text/plain 6228 264 46 There is now consistent evidence that exposure to traffic-related air pollution (TRAP; particularly nitrogen dioxide [NO 2 ]) is associated with an increased risk of developing asthma across the entire life course, and evidence is accumulating for a link between poor indoor air quality and new cases [5, 6] . However, whilst largescale LEZs can deliver improvements in urban air quality, data suggest that, at least in densely populated European cities, more ambitious schemes are required to meet legislative limits and deliver improvements to childhood respiratory health, including asthma symptoms [35] . The introduction and rigorous evaluation of zones with greater reductions in pollutant concentrations are clearly warranted and may benefit from adjuvant clean air zones that introduce no vehicle idling areas, minimise congestion and support active and low-emission travel through the integration of public transport networks, including park-and-ride schemes. ./cache/cord-346751-x3gd19kq.txt ./txt/cord-346751-x3gd19kq.txt