Radon
- Radon is everywhere, see map
- Naturally-occurring radioactive gas - causes lung cancer
- Inert, colorless and odorless
- Naturally in the atmosphere in trace amounts
- Outdoors: radon disperses rapidly
- Most radon exposure occurs inside homes, schools and workplaces
- Indoors: Radon gas becomes trapped indoors after it enters buildings through cracks and other holes in the foundation
- Can be controlled and managed with proven, cost-effective techniques
Radon monitoring
Hardware
- Airthings Wave
- Continuous radon monitoring
- Long term monitoring
- LEDs color – radon level
- Battery Operated
- Bluetooth BLE
- ESP32 - lolin D32 (can use any ESP32)
- MQTT Server - Mosquitto
Software
- Python script to read values from Airthings Wave: Wave-Reader
- Home Assistant Custom Component: sensor.airthings_wave
- ESP32 code to read Airthings BLE/Send MQTT: Airthings MQTT
Radon Mitigation
Since April 2020, we have observed high levels of radon (>2 pCi/L) which has prompted us to mitigate radon in the air we breathe in the house. This is in spite of having a passive radon mitigation system installed in the house when built.
- Seal the concrete basement
- Gray 1-part epoxy/vapor barrier
- Seal cracks and voids
- Gray 100% Silicone caulk
- Add radon mitigation system
- Radon Fan
- 3-prong appliance electrical cord
- 3’ rubber couplers
- Manometer
Results
Well below action limit of 2 pCi/L
