Netherlands, Amsterdam · 2019-10-03 · from the WORLDHUMMAP archive
A low hum in Netherlands, Amsterdam
A los hum. Often two different pitches/toner. In the last 15 years the hum has become louder and louder.
There has been discussion in my city/neighbourhood about the harmful effect of cell phone towers. One was installed around the time the I started to notice the hum.
What they reported
First noticed: 2004
Pitch: 185
Loudest: During the night
Where: Indoors
Symptoms: Ear discomfort (pain, fullness, throbbing), Headache, Insomnia, Nausea, Sense of vibration, Anxiety
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This is a Hum report from Dr Glen MacPherson's World Hum Map, an open, worldwide record of people who hear an unexplained low-frequency hum. Reproduced with permission and with thanks; the project is at thehum.info. We remove anything on request. Location shown is approximate.
Anomaly