Dust monitoring Bergerhoff Gauges to measure dust deposition
The Bergerhoff Gauge dust monitoring instrument is used on location and designed to measure for dust deposition, usually quoted as mg/m2/day.
The collector is a 1.5 litre PET bottle with a neck diameter of 90 mm, so its area is 0.00636 m2.
If the gauge collect W mg in D days, the the deposition rate is given by:
Dust Deposition = W/0.00636/D or [157.2*W]/D mg/m2/day
For example, if 14mg were collected in 28 days, the result would be:
Deposition: [157.2*14]/28 = 78.6 mg/m2/day
Contents of kit
- Main assembly consisting of plastic-coated stand with removable bird guard and bottle holder
- Overall height 2m and weight approximately 6kg
- 1.5-litre PET collecting bottle (aperture 93mm)
- Spare 1.5-litre PET collecting bottle with cap, as above
- Allen key
General construction and aperture size in accordance with the German standard VDI 2199
- Bird guard reduces risk of polluted samples from bird strikes
- Removable upper section for easy transportation or replacement
- 1.5-litre bottle will accommodate 225mm rain.
- Low-cost PET bottles have caps with a waterproof foil liner
- Guy rope attachments for extra security and stability
- Plastic coating of steel frame gives durability in hostile environments
- Optional cylindrical sticky pad adaptor 100mm dia x 150mm high can be clamped to the stem, permitting directional sampling
