Surveys in 1957 found the river was unable to sustain life, and the River Thames was eventually declared “biologically dead”.
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Rebecca Thiele. The White River from the Indianapolis Art Center's ArtsPark. Indiana has the most miles of rivers and streams deemed too polluted to swim in of any state. Indiana has the most polluted rivers and streams of any state.
A bald and astounding police statistic comes back to me every time I look into its steely waters: along the 213-mile long Thames, a body is retrieved from the river on average every week. The majority (39 last year) are found in the London area.
A spokesman for the PLA told Yahoo News UK: Swimming in the River Thames is not advisable at any time. It is tidal and also, even in hot weather, can be very cold so could cause cold water shock. We would advise anyone wanting to cool off to do it in a safe place such as local swimming baths.