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it's not needs big data in china with blue map a new way to name and shame companies that need to clean up their act , easy way to locate the biggest polluters here in shanghai it's signed opec china's major petrochemical company so that's the factory you can see all the smoke coming out of those smokestacks and right across the river from my favorite park in shanghai i've seen it before and never realized how much air pollution it actually causes , scientific wouldn't comment but the interesting thing is that the data on blue map is actually from the company itself thanks to a move by the government to make environmental data more transparent not everyone is on board their local authorities still ducking responsibility , some are surprised at just how quickly beijing has moved in making the data public marching is one of them heath china's most well known environmentalist and the man behind the aap what makes is that when i look at the abbasi clusters of red showing pollution i'm not really worried what worries me are the empty parts of the gray areas where data is not public or the big swath of blue indicating factories that are meeting standards that could just mean the data is a reliable , pollution is a hot button issue in china earlier this year a documentary on small by well known journalist went viral nervous authorities pulled offline after it attracted more than three hundred million views , lou map has been downloaded over three million times so far here near the factory mostly spoke to have never even heard of it this man told me the factory here was much less polluting than before , pricing considering how bad the areas around it , so i wandering around here about half an hour my eyes are watery environment steamy the back of my throat is kind of scratchy and there's a funny smell in the air , but with more eyes watching pressure from the public could help rein in the biggest offenders so maybe we don't need to say goodbye to blue skies in china just yet