Michael Palmer<p>Dramatic fall in London’s levels of deadly pollutants after Ulez expansion <a href="https://www.theguardian.com/environment/2025/mar/07/london-air-pollution-down-since-ulez-expansion-study?CMP=Share_iOSApp_Other" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">theguardian.com/environment/20</span><span class="invisible">25/mar/07/london-air-pollution-down-since-ulez-expansion-study?CMP=Share_iOSApp_Other</span></a> <a href="https://toot.wales/tags/ulez" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ulez</span></a> <a href="https://toot.wales/tags/london" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>london</span></a> <a href="https://toot.wales/tags/airquality" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>airquality</span></a> <a href="https://toot.wales/tags/airqualityimprovement" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>airqualityimprovement</span></a></p>