Comparison of the water quality of the surface microlayer and subsurface water in the Guangzhou segment of the Pearl River, China

Auteur(s) et Affiliation(s)

LIU, Q.

Inst. of Hydrobiology, Jinan Univ. Engineering Research Center of Tropical and Subtropical Aquatic Ecological Engineering, Guangzhou, Chine

Shenzhen Academy of Environmental Sciences, Shenzhen, Chine

HU, X.

Inst. of Hydrobiology, Jinan Univ. Engineering Research Center of Tropical and Subtropical Aquatic Ecological Engineering, Guangzhou, Chine

Key Lab. of South China Sea Fishery Resources Exploitation and Utilization of Ministry of Agriculture, CAS, Guangzhou, Chine

JIANG, J.

Inst. of Hydrobiology, Jinan Univ. Engineering Research Center of Tropical and Subtropical Aquatic Ecological Engineering, Guangzhou, Chine

ZHANG, J.

Inst. of Hydrobiology, Jinan Univ. Engineering Research Center of Tropical and Subtropical Aquatic Ecological Engineering, Guangzhou, Chine

WU, Z.

Beijing Normal Univ - Hong Kong Baptist Univ. Untied International College, Zhuhai, Chine

YANG, Y.

Inst. of Hydrobiology, Jinan Univ. Engineering Research Center of Tropical and Subtropical Aquatic Ecological Engineering, Guangzhou, Chine

Description :
The water quality in the surface microlayer (SML) and subsurface water (SSW) in the Guangzhou segment of Pearl River, a eutrophic urban river section in China, were analyzed. The spatial and temporal dynamics of nutrient concentrations, heavy metals and bacteria were examined from 2 sampling sites in monthly samples throughout 2010. It is highlighted that the Guangzhou segment of the Pearl River suffers serious pollution from nutrients and heavy metals, as well as microbial contamination. The results indicate that the SML was enriched in nutrients, heavy metals and bacteria, with the maximum enrichment factor of 3.84 for nutrients, 8.00 for heavy metals, and 3.04 for bacteria, suggesting that the water quality of the SML of the Guangzhou segment of the Pearl River was more degraded than in the SSW.

Type de document :
Article de périodique

Source :
Journal of geographical sciences. Acta geographica sinica, issn : 1009-637X, 2014, vol. 24, n°. 3, p. 475-491, nombre de pages : 17, Références bibliographiques : 64 ref.

Date :
2014

Editeur :
Pays édition : Chine

Langue :
Anglais