Each year, compared with coal-fueled power stations of similar scale, the four units of GNPS and LNPS Phase I reduce the consumption of more than 12 million tons of coal, appropriately 27 million tons of CO2, 100  thousand tons of SO2, 60 thousand tons of NOx and other gases, and 1200 thousand tons of coal ash.
     Long -term data from the 10 monitoring stations within a radius of 10 kilometers of Daya Bay Base indicate that there has been no obvious change in the level of radioactivity of Daya Bay base compared with the background figures obtained prior to the commercial operation, and that there has been no change in the number of species of  terrestrial and marine life within the region.
     In 2007, environment monitoring of the two stations was normal, three-waste release was controlled well within the national limits, no accidental exposure and individual overexposure happened. The unit average gaseous and liquid rad-wastes of GNPS and LNPS I are 0.07% and 0.05% of the national limits respectively, and the solid rad-wastes are 13.56% of the design value. According to the long-term radioactivity data gathered from the 15 independent environment-monitoring stations in Guangdong and Hong Kong region, there was no traceable change compared with the background figures obtained prior to the commercial operation of the stations.