Environmental Status

In 2002, the provincial environmental quality level has been stable in general a turned better. The ambient air quality has maintained at the second grade of National Quality Standard, dust pollution has been reduced; number of cities with acid rain occurred has been reduced and the acid rain frequency has dropped a little. The water quality of drinking-water source and MajorRiver sections have been obviously improved, the percentage of cities with the overall drinking-water source water quality reached national standards has increased 13.6%. The water quality of major river and main river section in pearl river delta's maintain at good quality level; The major lakes and reservoirs can fulfill the water quality requirements of functional regions. Nearly 70% of overall near-coastal sea region functional water qualities in cities have met the standards. The percentage of total traffic road length with serious noise pollution (equivalent sound level> 70dB(A)) has decreased 16.8%. Radiation environmental management, nuclear station emergency treatment and the surrounding environment of nuclear station are in good condition.

1.City Environmental Quality

(1) City air quality

Provincial ambient air quality has been a bit better than last year; dust pollution has been reduced apparently. Air quality of the 22 provincial regional grade cities and Shunde has reached second grade, while Heyuan's air quality reached first grade.

Provincial urban air's annual daily average value of SO2 is between 0.003-0.064mg/m3, with a mean value of 0.022mg/m3, a bit higher than last year's value (0.021mg/m3). The provincial average level has reached the national second grade standards; none of the cities has exceeded the standards.

Provincial urban air's annual daily average value of NOx is between 0.006-0.064mg/m3, with a mean value of 0.027mg/m3, basically equal to last year's value (0.027mg/m3). The provincial average level has reached the national first grade standards; none of the cities has exceeded the standards.

Provincial urban air's annual daily average value (statistics from 13 cities) of inhalational particles (PM10) is between 0.044-0.098mg/m3, and the mean value has reached the national second grade standards; all the 13 cities have reached the national second grade standards.

Among the 22 cities, 9 of them have not carried out air quality automatic monitoring accordingly, they keep on the monitoring of TSP according to the original monitoring item. Provincial urban air's annual daily average value of total suspended particles is between 0.074-0.165 mg/m3 and the mean value is 0.118 mg/m3, 16.9% lower than last year's value (0.142 mg/m3), which has reached the national second grade standards.

(2)City precipitation

The quality of provincial urban precipitation is almost the same as last year's, average pH of precipitation is 4.82, which is 0.18 pH unit less than last year's; the provincial acid rain frequency is 40.5%, which is 4.9% lower than last year. Number of cites occurring acid rain has been reduced, still have 7 cities with serious acid rain occurred, which are Guangzhou, Shenzhen, Foushan, Qingyuan, Jiangmen, Shaoguan and Shunde.

(3)City drinking water

Compared with last year, the city drinking water quality has been improved a lot through out the province, the total percentage of reaching standards is 83.8%, 16.7% higher than last year. Except Zhaoqing city, all the percentage of reaching standard of the other 21 cities' drinking water has been improved, 17 of them have totally reached standard, stands 77%, 13.6% higher than last year. 58 drinking water sources have reached standards entirely, stands 86.6%. Xinfeng Reservoir of Heyuan has the best water quality, belongs to Grade I. Shenzhen city has the least items that reached standards and has the most exceed standards items, the major exceed standards items are NH3-N and total phosphorus.