"A team of engineers and scientists are developing a device that measures water’s fluorescence in order to detect harmful microbes and chemicals... Water, like other substances, can absorb certain wavelengths of electromagnetic radiation and then emit it at a different wavelength, a process known as fluorescence.
Bridgeman’s technology identifies where radiation absorbed and emitted at specific wavelengths creates high intensity fluorescence, indicating that water pollutants are present."
Item by Stephen Harris, http://www.theengineer.co.uk/1006706.article?cmpid=TE01P&cmptype=newsletter&cmpdate=070111&email=true
