You can actually see purple-air monitors at the school: https://www.purpleair.com/map?#15.8/45.538164/-122.667271 https://www.purpleair.com/map?#15.8/45.538164

You can actually see purple-air monitors at the school: https://www.purpleair.com/map?#15.8/45.538164/-122.667271 https://www.purpleair.com/map?#15.8/45.538164/-122.667271 Note that the black-circled spots are monitors inside the building. Here's the report with details of the monitoring equipment and the recommendations. http://opb-imgserve-production.s3-website-us-west-2.amazonaws.com/original/tubman_-_psu_htmsreport_phase1_outdoor_monitoring_final_1530825287922.pdf http://opb-imgserve-production.s3-website-us-west-2.amazonaw...