Ambient Monitoring

UPDATE 7/20/22: The noise monitor is offline for annual maintenance and calibration. The monitor will be offline for approximately 10 working days. If you have questions about please call 360-293-3134.



Hydrogen sulfide (H2S) monitoring at Pier 2 occurs only during prilled sulfur loading events. The Port uses deployable instrumentation to measure levels of H2S. The instrumentation automatically reports any exceedances or issues to appropriate Port staff via email and text message. Monitoring results are updated daily on this page.

A loading event for prilled sulfur commenced on 7/11/2022 and finished on the evening of 7/18/22. Below are the data from the parts per billion (PPB) sensor located at a residence on 3rd St and a parts per million (PPM) sensor located on the truck unloading point. If you have any questions about the Port’s H2S monitoring, please call (360) 299-1827 or email

Pier 2 Noise Monitoring

Login Link:
Noise Meter


1. Click “Connect” icon.

2. Next click the “Port of Anacortes” icon.

3. Live data will start connecting.

4. Select “Meter” or “Graph” to view data.