Heat wave hurts London air quality
LONDON -- British scientists say a heat wave has caused London's air quality to deteriorate, which could affect athletes' performances at the Olympics.
Scientists from King's College in London say pollution in the British capital has reached the highest level in six years. Recent sunshine and low winds are "exactly the conditions that can bring summertime smog to London," the environmental experts said in a statement Thursday.
They also launched a website that offers hourly air quality ...
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