Some surveys "found that bottled water, far from being an alternative to tap water, seems to be mostly consumed as a substitute for alcoholic and traditional soft drinks (e.g. AWWA-RF 1993; FWR 1996) – the exception being when water contamination presents serious health risks and the trust in the tap water company is highly eroded (e.g. Lonnon 2004)." Another explanation for the rise in popularity of bottled water is alternative explanation is that "the consumption of 'pure' and 'natural' bottled water in degraded environments may represent a symbolic purging behavior."