Cologne - Defective meters will have the particulate collection in NRW spin. Several devices were said to be calibrated incorrectly, so were determined at five stations in the past year, bad data. Including the device in Cologne on Clevischen ring.
The instruments are said to have measured up to 30 percent higher particulate matter levels.
Since the erroneous information could not be corrected, had the State Office for Nature, Environment and Consumer Protection, delete the complete annual data for 2008. Among the affected cities are also Recklinghausen, Essen, Dortmund and Dinslaken.
The authority estimates the damage at several hundred thousand euros. The devices are now being replaced. The owner, an American company should be sued for damages. The legality of the environmental zones, but the whole thing should have no effect.
