Spatial-temporal distribution of microplastics in surface water and sediments of Maozhou River within Guangdong-Hong Kong-Macao Greater Bay Area

International Journal of Electrical Engineering & Education

2021

There is a deep relationship between urban design and public health, and the urban built environment plays an important role in shaping human health and well-being. Globally, under the influence of the COVID-19, the interdisciplinary research between the two disciplines has once again attracted attention. From the perspective of public health, the origin of the relationship between the disease and urban design was traced, and the urban epidemic prevention in the “isolation-quarantine-epidemic prevention-traceability” epidemic was discovered response to the changing process. In response to frequent epidemics, it is proposed that urban design needs to return to a healthy city model oriented by public health and public health needs. While promoting the layout of urban epidemic prevention, it actively develops coping strategies for interdisciplinary collaborative research, in order to provide new insights and thinking for urban development research.

Section: Public Health Events and Urban Design Strategiesmentioning

confidence: 99%

RETRACTED: Research on the evolution of urban design from the perspective of public health under the background of the COVID-19

Liu

International Journal of Electrical Engineering & Education

2021

“…It is generally believed that there is a positive correlation between MP pollution in the aquatic environment and the degree of industrialization (Yonkos et al, 2014;Townsend et al, 2019). Available field survey (Li et al, 2018;Liu F. et al, 2019;Liu et al, 2020;Wu et al, 2020) and model study (Piehl et al, 2021) have confirmed that MP emissions from industrial areas are higher than those from residential areas, business quarters, etc. Industrial waste discharges are found to be one of the main contributors to the MP pollution in the aquatic environment, such as rivers (Lechner et al, 2014;Yonkos et al, 2014;Lechner and Ramler, 2015;Woodward et al, 2021), lakes (Zbyszewski and Corcoran, 2011), and oceans (Franco et al, 2020;Su et al, 2020).…”

Section: Introductionmentioning

confidence: 92%

“…MP abundance in wastewater is highly related to the presence and quantity of industries (Barchiesi et al, 2021). Both individual industrial types (Xu et al, 2018;Zhou et al, 2020;Franco et al, 2021) and regional scales (Liu et al, 2020;Wu et al, 2020) studies have shown that MP emissions from industrial sources are higher than those from domestic sources. However, most current WWTPs are not designed for MP removal, and any additional MP elimination processes will increase the capital cost and be challenging to achieve in the short term (Hou et al, 2021).…”

Section: Abundance Of Mpsmentioning

confidence: 99%

Heterogeneity and Contribution of Microplastics From Industrial and Domestic Sources in a Wastewater Treatment Plant in Xiamen, China

Long

et al. 2021

Front. Environ. Sci.

Plastic-related industrial discharge is suspected as a significant source of microplastics (MPs) in the influent of wastewater treatment plants (WWTPs). However, little is known about the characteristics of MPs in industrial wastewater. Taking the Haicang WWTP in Xiamen, China, as an example, this study compared MPs in industrial wastewater with the domestic one in terms of abundance, particle size, polymer type, shape and color. Wentworth modulus, grain size parameters and principal component analysis (PCA) were performed to describe the MP difference between those two. It was found that the abundance of MPs in industrial wastewater was more than twice that in domestic wastewater, and the flux of MPs discharged into the aquatic environment through industrial wastewater was about 3.2 times that of domestic wastewater. The main shapes of MPs in industrial wastewater and domestic wastewater were fiber and granule, respectively. The proportion of polyester (PES) and polyethylene terephthalate (PET) in industrial wastewater was higher than that in domestic wastewater, related to the type of factories served by the WWTP. Compared with domestic wastewater, the rough surface of MPs in industrial wastewater was more complex and diverse, which might have a high capability of adsorbing other pollutants, thereby causing more significant harm to the environment. Our results supported that industrial sources of MPs are the priority areas in environmental management, and immediate action is taken to prevent industrial-sources MPs from entering the environment.

“…Microplastics have already been identified throughout the maritime environment, containing beaches (Wu et al 2020), open ocean (Cózar et al, 2014), remote island (Ivar et al 2009), river (Mai et al 2021), and marine sediment (Sharma et al 2017). The occurrences and distribution of microplastics in beach sediment denotes longterm accumulation which acts as the persistent interfacial contact between seawater and coastal area.…”

Section: Introductionmentioning

confidence: 99%

Occurrences, Distribution and Composition of Microplastics in the Surface Seawater and Beach Sediments of the Southern Shandong Peninsula, China

Pervez

Lai

2021

Preprint

The current work provides the detailed analysis about microplastics contamination of the beach sediments and surface seawater. Sediment samples were collected from the high tidal zone at 13 beaches, and surface seawaters of seven stations along the southern Shandong Peninsula. The presence of microplastics was recorded on both beaches and surface seawater. The mean quantity of microplastics was approximately 664±80 microplastics/kg of dry weight (dw) with 0.5~0.125 mm in beach sediments, and 5.62±0.4 microplastics/liter (L) of surface seawater. Predominant microplastics were fibers (>97%). While other plastic forms had lower percentage. Microplastics possessed different color with polymer composition including polypropylene, polyethylene, and polystyrene. The accumulation of microplastics on beaches is an alarming issue and provides better understanding about microplastics pollution along the coastal regions of the southern Shandong Peninsula. It would also help to establish better monitoring system for future and evaluate possible risks by microplastics due to rapid economic growth of China.