Trophic transfer of TiO2 nanoparticles from marine microalga (Nitzschia closterium) to scallop (Chlamys farreri) and related toxicity

2017 ◽  
Vol 4 (2) ◽  
pp. 415-424 ◽  
Author(s):  
Zhenyu Wang ◽  
Bin Xia ◽  
Bijuan Chen ◽  
Xuemei Sun ◽  
Lin Zhu ◽  
...  

In the present study, the trophic transfer of TiO2 NPs from marine microalga Nitzschia closterium to scallop Chlamys farreri was investigated. over the potential risk and environmental impact of manufactured nanoparticles (NPs) have increased in marine environments.

Author(s):  
Lidia Hrncevic

The petroleum industry holds long- and short-term environmental risks. Besides production fluids, all petroleum industry activities involve either use of fluids, which contain abundant substances, or waste generation, both associated with potential risk to the environment. The principal environmental risk associated with the petroleum industry is the risk of fluid spill/emission to the environment. Although in recent decades the risk analysis methodologies have matured, to date there is still no universally accepted methodology for environmental risk assessment in petroleum industry. In this chapter, the petroleum industry’s environmental incident history and statistics are presented. The environmental impact of the petroleum industry’s activities, its extent, and trends are analyzed. The overview of pollution sources with associated environmental risk is given along with the analysis of the causes and consequences of incidents in the petroleum industry.


Author(s):  
Lidia Hrncevic

The petroleum industry holds long- and short-term environmental risks. Besides production fluids, all petroleum industry activities involve either use of fluids, which contain abundant substances, or waste generation, both associated with potential risk to the environment. The principal environmental risk associated with the petroleum industry is the risk of fluid spill/emission to the environment. Although in recent decades the risk analysis methodologies have matured, to date there is still no universally accepted methodology for environmental risk assessment in petroleum industry. In this chapter, the petroleum industry's environmental incident history and statistics are presented. The environmental impact of the petroleum industry's activities, its extent, and trends are analyzed. The overview of pollution sources with associated environmental risk is given along with the analysis of the causes and consequences of incidents in the petroleum industry.


2021 ◽  
Author(s):  
Pathompong Vibhatabandhu ◽  
Sarawut Srithongout

Abstract Microplastics are pollutants with uncertain behaviors; they have mysterious impacts on marine environments. In the present study, surface water samples from 25 different locations in the Inner Gulf of Thailand were collected to assess the distribution of microplastic contamination. Microplastics were visually counted and identified by Fourier-transform infrared microscopy. The results revealed that the average total abundance of microplastics (125–5000 µm) was 9.97 pieces/L (1.55 ng/L). Microplastics sized 125–300 µm were most abundant at all the sampling sites, accounting for 68% of the total microplastics. Fiber (35%) and fragment (34%) were the predominant microplastic shapes in the surface water. Polyethylene, polypropylene, and poly(ethylene propylene) accounted for the most prevalent polymer types. The present findings revealed that the Inner Gulf of Thailand is moderately polluted by microplastics of different sizes, shapes, and types, which may pose a potential risk to coastal ecosystems.


Author(s):  
Allan Philippe ◽  
Ahmad Bazoobandi ◽  
Nadine Goeppert

Soils and sediments are the most important sinks for anthropogenic TiO2 nanoparticles. Therefore, it is important to assess their environmental impact and monitor their concentration in this media. Since these...


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