TY - JOUR
T1 - Spatial-temporal distribution of microplastics in surface water and sediments of Maozhou River within Guangdong-Hong Kong-Macao Greater Bay Area
AU - Wu, Pengfei
AU - Tang, Yuanyuan
AU - Dang, Miao
AU - Wang, Siqing
AU - Jin, Hangbiao
AU - Liu, Yunsong
AU - Jing, Hao
AU - Zheng, Chunmiao
AU - Yi, Shuping
AU - CAI, Zongwei
N1 - Funding Information:
This work is supported financially by the National Natural Science Foundation of China (NSFC) (41977329) and the Shenzhen Science and Technology Innovation Committee (JCYJ20160429191618506). This work is also sponsored by the Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control (No. 2017B030301012). The authors also appreciate Kai Yu, Dongfang Ke and the public experiment platform in School of Environmental Science and Engineering from Southern University of Science and Technology for offering the information on hydrographic, land utilization chart of Shenzhen and data measurements.
Funding Information:
This work is supported financially by the National Natural Science Foundation of China (NSFC) ( 41977329 ) and the Shenzhen Science and Technology Innovation Committee ( JCYJ20160429191618506 ). This work is also sponsored by the Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control (No. 2017B030301012). The authors also appreciate Kai Yu, Dongfang Ke and the public experiment platform in School of Environmental Science and Engineering from Southern University of Science and Technology for offering the information on hydrographic, land utilization chart of Shenzhen and data measurements. Appendix A
PY - 2020/5/15
Y1 - 2020/5/15
N2 - Concerns over the negative impacts of microplastics on human health have led to growing attention on the occurrence of microplastics in aquatic environment. Recent studies have extended their focus from marine to inland waters, especially on the spatial-temporal distribution of the microplastics in urban rivers. In this study, Maozhou River, the largest river in Shenzhen, a tributary of the Pearl River, was selected as a representative inland waterway of Guangdong-Hong Kong-Macao Greater Bay Area. The spatial-temporal investigation was performed on microplastics in the surface water and sediments of 17 sites along the mainstream of the Maozhou River. Results show that microplastics were widely and unevenly distributed along the river and reached the high abundances on the site most intensively surrounded by industries as well as the sites downstream. The abundances in dry season ranged from 4.0 ± 1.0 to 25.5 ± 3.5 items·L−1 in water and 35 ± 15 to 560 ± 70 item·kg−1 in sediments, which were relatively higher than those observed in the wet season (water: 3.5 ± 1.0 to 10.5 ± 2.5 items·L−1; sediments: 25 ± 5 to 360 ± 90 item·kg−1; p value < 0.05). The dominant types of the microplastics were identified as: PE Polyethylene (PE, water: 45.0%, sediments: 42.0%), polypropylene (PP, water and sediments: 12.5%), polystyrene (PS, water: 34.5%; sediments 14.5%) and polyvinyl chloride (PVC, water: 2.0%; sediments: 15%). Moreover, metals like Al, Si, Ca were discovered on the rough surface of the microplastics, indicating the interactions between the microplastics and the aquatic environment. Through a comprehensive comparison with other major inland waters in China, this work provides valuable data on the microplastics pollution of a representative inland water in the Greater Bay Area, and will further contribute to a better understanding on the land-based input of microplastics from the intensively affected inland waters.
AB - Concerns over the negative impacts of microplastics on human health have led to growing attention on the occurrence of microplastics in aquatic environment. Recent studies have extended their focus from marine to inland waters, especially on the spatial-temporal distribution of the microplastics in urban rivers. In this study, Maozhou River, the largest river in Shenzhen, a tributary of the Pearl River, was selected as a representative inland waterway of Guangdong-Hong Kong-Macao Greater Bay Area. The spatial-temporal investigation was performed on microplastics in the surface water and sediments of 17 sites along the mainstream of the Maozhou River. Results show that microplastics were widely and unevenly distributed along the river and reached the high abundances on the site most intensively surrounded by industries as well as the sites downstream. The abundances in dry season ranged from 4.0 ± 1.0 to 25.5 ± 3.5 items·L−1 in water and 35 ± 15 to 560 ± 70 item·kg−1 in sediments, which were relatively higher than those observed in the wet season (water: 3.5 ± 1.0 to 10.5 ± 2.5 items·L−1; sediments: 25 ± 5 to 360 ± 90 item·kg−1; p value < 0.05). The dominant types of the microplastics were identified as: PE Polyethylene (PE, water: 45.0%, sediments: 42.0%), polypropylene (PP, water and sediments: 12.5%), polystyrene (PS, water: 34.5%; sediments 14.5%) and polyvinyl chloride (PVC, water: 2.0%; sediments: 15%). Moreover, metals like Al, Si, Ca were discovered on the rough surface of the microplastics, indicating the interactions between the microplastics and the aquatic environment. Through a comprehensive comparison with other major inland waters in China, this work provides valuable data on the microplastics pollution of a representative inland water in the Greater Bay Area, and will further contribute to a better understanding on the land-based input of microplastics from the intensively affected inland waters.
KW - Maozhou River
KW - Microplastics
KW - Sediment
KW - Spatial-temporal distribution
KW - Surface water
UR - http://www.scopus.com/inward/record.url?scp=85076535660&partnerID=8YFLogxK
U2 - 10.1016/j.scitotenv.2019.135187
DO - 10.1016/j.scitotenv.2019.135187
M3 - Journal article
C2 - 31837864
AN - SCOPUS:85076535660
SN - 0048-9697
VL - 717
JO - Science of the Total Environment
JF - Science of the Total Environment
M1 - 135187
ER -
