<html><body><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000"><div>Caros Colegas e Investigadores,</div><div><br data-mce-bogus="1"></div><div>A pedido do colega Filipe Araújo do DEI, divulga-se a chamada de artigos em rodapé.</div><div><br data-mce-bogus="1"></div><div>Saudações Académicas,</div><div><br data-mce-bogus="1"></div><div>Rui P. Rocha</div><div data-marker="__QUOTED_TEXT__"><div class="" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><br data-mce-bogus="1"></div><div class="" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">-----------------------------------</div><div class="" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><br class=""></div><div class="" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span class="Apple-tab-span" style="white-space: pre;"> </span>Dear colleagues,</div><div class="" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><br class=""></div><div class="" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span class="Apple-tab-span" style="white-space: pre;"> </span>It is with great pleasure that we will be guest editors of this special issue:</div><div class="" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><br class=""></div><div class="" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span class="Apple-tab-span" style="white-space: pre;"> </span>Sustainability | Special Issue: Real-Time Air Quality Monitoring Systems</div><div class="" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span class="Apple-tab-span" style="white-space: pre;"> </span>(<a href="https://www.mdpi.com/journal/sustainability/special_issues/real_time_air_quality_monitoring_systems" class="" target="_blank">https://www.mdpi.com/journal/sustainability/special_issues/real_time_air_quality_monitoring_systems</a>).</div><div class="" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><br class=""></div><div class="" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span class="Apple-tab-span" style="white-space: pre;"> </span>We would like to invite you to submit an article and share this call with potentially interested colleagues.</div><div class="" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><br class=""></div><div class="" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span class="Apple-tab-span" style="white-space: pre;"> </span>Keywords:</div><div class="" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><br class=""></div><div class="" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span class="Apple-tab-span" style="white-space: pre;"> </span>* Air quality and air quality assessment.</div><div class="" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span class="Apple-tab-span" style="white-space: pre;"> </span>* Air quality sensors.</div><div class="" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span class="Apple-tab-span" style="white-space: pre;"> </span>* Sensor data collection and fusion.</div><div class="" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span class="Apple-tab-span" style="white-space: pre;"> </span>* Mobile computing technologies.</div><div class="" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span class="Apple-tab-span" style="white-space: pre;"> </span>* Innovative real-time monitoring approaches.</div><div class="" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span class="Apple-tab-span" style="white-space: pre;"> </span>* Intelligent methods for air quality monitoring.</div><div class="" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span class="Apple-tab-span" style="white-space: pre;"> </span>* Calibration and prognostic systems in air quality monitoring.</div><div class="" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span class="Apple-tab-span" style="white-space: pre;"> </span>* Cloud-based approaches to air quality systems.</div><div class="" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span class="Apple-tab-span" style="white-space: pre;"> </span>* High availability of real-time air quality systems.</div><div class="" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span class="Apple-tab-span" style="white-space: pre;"> </span>* Security in air quality systems.</div><div class="" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span class="Apple-tab-span" style="white-space: pre;"> </span>* Applications of air quality monitoring data.</div><div class="" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span class="Apple-tab-span" style="white-space: pre;"> </span>* Air quality in smart cities.</div><div class="" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span class="Apple-tab-span" style="white-space: pre;"> </span>* Quality issues with air monitoring data.</div><div class="" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span class="Apple-tab-span" style="white-space: pre;"> </span>* Data storage and privacy.</div><div class="" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span class="Apple-tab-span" style="white-space: pre;"> </span>* IoT.</div><div class="" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><br class=""></div><div class="" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span class="Apple-tab-span" style="white-space: pre;"> </span>The deadline is July 31st, 2021. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website.</div><div class="" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><br class=""></div><div class="" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span class="Apple-tab-span" style="white-space: pre;"> </span>Thank you in advance and let us know if you have any question.</div><div class="" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><br class=""></div><div class="" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span class="Apple-tab-span" style="white-space: pre;"> </span>Catarina Silva</div><div class="" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span class="Apple-tab-span" style="white-space: pre;"> </span>Filipe Araujo</div><div class=""><br class=""></div><br></div></div></body></html>