Current status of some important groups of emerging chemicals of concern in coastal region of South China

Chung Wah James LAM, B. Q. ZHU, Karen Y. KWOK, H. W. LEUNG, Paul Kwan Sing LAM

Research output: Contribution to conferencePaper

Abstract

The coastal environment of South China, particularly the Pearl River Delta (PRD) region, has been undergoing significant modifications due to rapid economic growth and industrialization. These may increase the demand for new and existing chemicals used in the manufacture of products for both domestic use and export. It is, therefore, conceivable that large amounts of toxic substances, including classes of compounds referred to as “Emerging Chemicals of Concern (ECCs)”, are found in this region. ECCs, such as halogenated flame retardants (HFRs), per-/polyfluoroalkyl substances (PFASs), and pharmaceuticals and personal care products (PPCPs), have been detected in municipal wastewaters, surface and ground waters, drinking waters as well as sediments and aquatic biota. The presence of certain ECCs in local wildlife such as marine mammals and waterbirds indicates that they are bioavailable and are bioaccumulative. A recent study carried out in the South China Sea further revealed that the highest levels of some ECCs were recorded in seawater samples collected at the mouth of the Pearl River as compared with other coastal sites. Although HFRs, PFASs, and PPCPs have attracted wide attention as global environmental contaminants, there are still considerable data gaps in our understanding of the environmental fate and risks of these contaminants in the PRD region. This paper aims to discuss the current status and trends of important ECCs in South China.
Original languageEnglish
Publication statusPublished - Jun 2016

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river
environmental fate
pollutant
toxic substance
marine mammal
environmental risk
industrialization
coastal zone
economic growth
biota
drinking water
chemical
seawater
surface water
wastewater
groundwater
sediment
flame retardant
PPCP
wildlife

Citation

Lam, J. C. W., Zhu, B. Q., Kwok, K. Y., Leung, H. W., & Lam, P. K. S. (2016, June). Current status of some important groups of emerging chemicals of concern in coastal region of South China. Paper presented at The 8th International Conference on Marine Pollution and Ecotoxicology, The University of Hong Kong, Hong Kong, China.