default concentration marker is also a circled marker
default concentration marker is also a circled marker
52North/js-sensorweb-client,EHJ-52n/js-sensorweb-client,janschulte/js-sensorweb-client,EHJ-52n/js-sensorweb-client,52North/js-sensorweb-client,janschulte/js-sensorweb-client