South China's Guangdong Province is planning to end the re-education through labor system within the year.The provincial judicial department saysthose kept in the re-education camps will no longer receive people if the system is abolished.Those kept in re-education camps will be released after expiration.In Guangdong, most of those in re-education institutions are drug addicts,instead of those accused of misdemeanors.Municipal authorities in Beijing are to issue regulations to improve air quality by the end of this year.The smoggy weather has affected a total area of 1.3 million square kilometers in China recently.The new regulations include higher standards for vehicle fuel, and stricter restrictions on industrial and exhaust gas emissions.Traffic authorities in Beijing have ordered 30 percent of official cars in the city to be off road.The smog has also disrupted traffic and led to a surge in respiratory illnesses, particularly among children and the elderly.Studies show that most of the pollution comes from coal burning, motor vehicles, industrial emissions and dust.