US<p><a href="https://www.europesays.com/us/118360/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="">europesays.com/us/118360/</span><span class="invisible"></span></a> Atmospheric ozone levels exceed safety threshold in northern Portugal triggering health alert <a href="https://pubeurope.com/tags/Environment" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Environment</span></a> <a href="https://pubeurope.com/tags/Health" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Health</span></a> <a href="https://pubeurope.com/tags/Heatwave" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Heatwave</span></a> <a href="https://pubeurope.com/tags/ozone" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ozone</span></a> <a href="https://pubeurope.com/tags/Pollution" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Pollution</span></a> <a href="https://pubeurope.com/tags/Portugal" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Portugal</span></a> <a href="https://pubeurope.com/tags/Science" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Science</span></a> <a href="https://pubeurope.com/tags/UnitedStates" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>UnitedStates</span></a> <a href="https://pubeurope.com/tags/UnitedStates" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>UnitedStates</span></a> <a href="https://pubeurope.com/tags/US" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>US</span></a> <a href="https://pubeurope.com/tags/warning" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>warning</span></a></p>