2001 Report on

the State of Guangdong Provincial Environment

Urban Water Environment

In River section of 19 provincial regional grade cities (excluding Zhanjiang and Shanwei, for they have no river section gone through city.), 7 river section's water quality have reached the request o<Environmen-tal Quality Standard of Ground Water>(GHZB1-1999), stands 36.8% of the examination sections, 5.3% lower than last year's data. Water quality of urban river sections is mainly in the category of grade V and IV. Dongjiang river Heyuan urban section and Hanjing river Chaozhou urban section are of excellent water quality, belongs to grade I and stands 10.5%; 4 river urban sections are of good water quality, belongs to grade II and stands 21.0%; 5 river urban sections are of average water quality, belongs to grade IV and stands 26.3%; 2 river urban sections are of bad water quality, belongs to grade IV and stands 10.5%; 6 river urban sections are of worse water quality, belongs to bad grade V and stands 31.6%, they are Pear River Guangzhou urban section, Shenzhen River Shenzhen urban section, Foushan watercourse Foushan urban section, Xiao Dongjiang River Maoming section, Dongguan canal Dongguan urban section and Nanshan River Yunfu urban section. Urban river sections of the large rivers main stream still remain excellent water quality (grade I-II). Urban river sections of worse water quality (grade V-bad V) mainly concentrated in the Pear River Delta. Water quality that is beyond standard appeared obvious features of domestic and agricultural organic pollution, with major pollution index is NH3-N, secondly are aerobic organic compound and oil. Compared with last year, number of river section reached standards are 5.3% less, water quality of river sections meet request of or better than grade III is 10.5% less. The tendency of pollution degree of urban river section going worse has not been remission.

Urban Noise

Provincial average value of environmental noise equivalent sound level in urban region is 54.8dB(A), 0.3dB(A) fewer than last year, meet the request of national standard for daytime regional environmental noise (category No. 1:residential district and educational district). The structure of noise source are still mainly domestic and traffic noise source, each stands a percentage of 59.7% and 19.8%.

level in urban region is 54.8dB(A), 0.3dB(A) fewer than last year, meet the request of national standard for daytime regional environmental noise (category No. 1:residential district and educational district). The structure of noise source are still mainly domestic and traffic noise source, each stands a percentage of 59.7% and 19.8%.

Provincial average value of traffic noise equivalent sound level in urban roads is 63.8dB(A); 0.3dB(A) fewer than last year, the annual average value of all cities is within standards. Provincial Length of road which urban road traffic noise has exceeded standard stands 24.1% of the total monitored road length, which is 5.3% lower than last year.

In the provincial average value of environmental noise equivalent sound level of urban functional region, the percentage of exceeding standards is 23.5%; percentage of urban regional noise that exceeded standard of comparable cities is basically equal with last year's data. Among the functional region, percentage of exceeding standards is relatively high in region of category No. 4(both sides of main traffic lines) and No.0(recuperate district, luxury villa, hotels), while in region of category No. 3 (industrial district) is lowest.