"Joint efforts by neighboring areas, and coordinated control measures are needed to treat environmental pollution. ... The Beijing and Tianjin municipalities, Hebei province and the Yangtze River Delta can learn from the experience of Guangzhou."

Wu Dui, chief expert of Guangdong Meteorological Administration, said in an interview on the provincial capital government's micro blog on Tuesday.

(China Daily 03/06/2013 page2)