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CityTree comprises 1,700 moss culture units. Photo: SCMP Pictures
Moss culture filter system could 'eat up' Hong Kong's roadside pollution, says German start-up
German start-up says street air filter that feeds on particulate matter would help clean city's air
Topic |
Hong Kong air pollution
Updated: 9:29pm, 23 Nov, 2015
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CityTree comprises 1,700 moss culture units. Photo: SCMP Pictures
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