Abstract:Based on the survey data, including 2 cruises in 2010, obtained from recent 30 years in Jiulongjiang Estuary, the annual variations and spatial distribution of DIN, DIP, COD and petroleum hydrocarbon were analyzed and eutrophication index (EI) were applied to assess the eutrophication conditions. The annual concentration of DIN and DIP tended to rise in recent 30 years while the petroleum hydrocarbon concentration increased slowly at first and then declined and COD fluctuate in small amplitude. DIN was higher in the west than the east of the estuary with variations of DIP annually while COD and petroleum hydrocarbon concentration were high in the inner estuary and lower in the western waters of Xiamen harbor and in the outer estuary. The increasing EI for 30 years indicates that the seawater quality was in a state of deteriorating. The most eutrophic areas were located in the north, middle and south part of Jiulongjiang Estuary and at the Nan Xi opening, which suggests that it was resulted from the great input of Jiulongjiang River. All data, annual variations of pollutants with their horizontal distribution, should lay a solid foundation for establishment of total amount control of pollutants to the sea.
郭洲华, 王翠, 颜利, 王金坑. 九龙江河口区主要污染物时空变化特征[J]. 中国环境科学, 2012, 32(4): 679-686.
GUO Zhou-Hua, WANG Cui, YAN Li, WANG Jin-Keng. Spatiotemporal variations of main pollutants in Jiulongjiang Estuary. CHINA ENVIRONMENTAL SCIENCECE, 2012, 32(4): 679-686.