Thedevicetakes readingsof the 2000 ormorevolatileorganiccompounds (VOCs) foundin a sampleof human breath. Changes in VOCs can be a markerforbreast cancer.
The whale numbers give plenty of opportunities for the researchers to get close to the animals - but often not close enough to get a good breathsample.
In Texas, if you get a second offense DWI you have to install and maintain a deep lung air device on the car that requires a breathsample before it will allow you to start your car.
During the same campaign last year, a total of 4, 145 drivers were breathalysed and 119 (2.9%) people tested positive or failed to provide a sample of breath.