(Bloomberg) -- Besides facing hefty fines, criminal punishments and the possibility of closure, the worst emitters in China risk additional public anger as new smartphone applications and lower-cost monitoring devices widen access to data on pollution sources.

Azure Map, an application made by a group of organizations including the Institute of Public & Environmental Affairs and the Alibaba Foundation, provides pollution data from more than 3,000 large coal-power, steel, cement and petrochemical production plants. Origins Technology Ltd. in July began sale of the Laser Egg, a palm-sized air quality monitor used to track indoor and outdoor air quality by measuring fine particulate matter in the air.

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