scholarly journals The relationship between atmospheric pollutant emissions and fuel qualities of inland vessels in Jiangsu Province, China

2019 ◽  
Vol 69 (3) ◽  
pp. 305-312 ◽  
Author(s):  
Yali Cao ◽  
Wei Zhang ◽  
Xia Wang ◽  
Liang Wu ◽  
Guangren Qian
Processes ◽  
2021 ◽  
Vol 9 (8) ◽  
pp. 1264
Author(s):  
Meng Zeng ◽  
Lihang Liu ◽  
Fangyi Zhou ◽  
Yigui Xiao

Many studies have found that FDI can reduce the pollutant emissions of host countries. At the same time, the intensity of environmental regulation would affect the emission reduction effect of FDI in the host country. This study aims to reveal the internal mechanisms of this effect. Specifically, this paper studies the impact of FDI on technological innovation in China’s industrial sectors from the perspective of technology transactions from 2001 to 2019, and then analyzes whether the intensity of environmental regulation can promote the relationship. Results indicate that FDI promotes technological innovation through technology transactions. In addition, it finds that the intensity of environmental regulation significantly positively moderates the relationship between FDI and technological innovation, which is achieved by positively moderating the FDI–technology transaction relationship. Regional heterogeneity analysis is further conducted, and results show that in the eastern and western regions of China, FDI can stimulate technological innovation within regional industrial sectors through technology trading. Moreover, environmental regulation has a significant positive regulatory effect on the above relationship, but these effects are not supported by evidence in the central region of China.


2021 ◽  
Vol 880 (1) ◽  
pp. 012004
Author(s):  
H Mahidin ◽  
M T Latif ◽  
A Hamdan ◽  
J Salleh ◽  
D Dominick ◽  
...  

Abstract Sarawak Region of Malaysia is currently experiencing a high demand for capital needs such as transformation forest to plantations, economic development, and improving transportation systems. Those land cover changes will increase primary pollutant emissions and trigger surface O3 formation. Surface O3 is a secondary pollutant and a significant greenhouse gas contributing to climate change and declining air quality. In this study, variations in surface O3 concentrations at urban and suburban sites in Sarawak were explored using the Malaysian Department of Environment data spanning a two-year cycle (2018-2019). The primary aim of this study is to ascertain the variation of surface O3 concentrations reported at four monitoring stations in Sarawak, namely Kuching (SQ1) (Urban), Sibu (SQ2) (Suburban), Bintulu (SQ3) (Suburban), and Miri (SQ4) (Suburban). The study also analysed the relationship between O3 distribution and nitrogen oxides (NO and NO2). The findings showed that O3 concentrations observed in the region during the study period were lower than the maximum permissible value of 100 ppbv suggested by the Malaysian Ambient Air Quality Standard (2020). SQ4 (Miri) at suburban sites recorded the highest average surface O3 concentrations with an hourly average and daily maximum O3 concentration of 15.7 and 89.5 ppbv, respectively. Temperatures, UV exposure, and wind speed all impact the concentration of surface O3 in Sarawak. In all stations, concentrations of O3 were inversely linked with NO, NO2, and relative humidity (RH). This research will assist the relevant agency in forecast, monitor, and mitigate the level of O3 in the ambient environment, especially in the Sarawak Region.


2021 ◽  
Vol 334 ◽  
pp. 02032
Author(s):  
Gennady Denisov ◽  
Vladimir Zelikov ◽  
Elena Tarasova ◽  
Vladimir Klyavin

The paper uses pollutant emissions calculation methods in accordance with GOST (All-Union State Standard) in combination with the method of mathematical statistics, which makes it possible to determine the amount of emissions from automobile transport, which is in line at a red traffic light in the area of a controlled intersection. The methods allow calculating such environmental indicators as the mass of pollutant emissions, the concentration of pollutants and the Air Pollution Index. The authenticity of this technique is confirmed by testing the hypothesis on the Pearson Law of distribution of pollutants. Based on the combined methodology, the software has been developed with the purpose to monitor atmospheric air pollution. This approach will make it possible to qualitatively assess the level of atmospheric air pollution and take timely measures in the event of dangerous environmental conditions.


2021 ◽  
Vol 282 ◽  
pp. 124533
Author(s):  
Chaoyue Zheng ◽  
Haoran Zhang ◽  
Xingrui Cai ◽  
Long Chen ◽  
Maodian Liu ◽  
...  

2018 ◽  
Vol 33 (1) ◽  
pp. 37
Author(s):  
Benedito Luiz Martins ◽  
Alcides Lopes Leão

O objetivo deste trabalho é realizar um estudo sobre um projeto regional com 39 municípios para análise comparativa para destinação dos rejeitos dos resíduos sólidos urbanos em um incinerador e disposição em um aterro sanitário com captação do biogás, considerando a possibilidade de recuperação energética em ambos os sistemas, bem como a comparação com relação à emissão de gases de efeito estufa e poluentes atmosféricos.  Para realização deste estudo foram adotadas as seguintes metodologias: caracterização gravimétrica das frações de resíduos sólidos produzidas na região; cálculo de captação do biogás com recuperação energética utilizando a equação elabora pelo IPCC - International Panel on Climate Change, com distribuição triangular da produção do metano gerado ao longo dos anos pela degradação lenta e rápida dos resíduos; e recuperação de energia em sistema de incineração. Os resultados mostraram que o sistema de incineração tem eficiência em 3,2 vezes maior para a produção de energia em relação ao sistema de aterro sanitário, o qual emite gases de efeito estufa 2,9 vezes mais que o sistema de incineração. A conclusão do estudo é que a incineração leva vantagem sobre o aterro sanitário na gestão de resíduos sólidos, porque gera mais energia elétrica, emite menos gases de efeito estufa, utiliza menos área física de terra e, por ser um sistema fechado e estanque apresenta melhores condições para mitigação dos impactos ambientais negativos. PALAVRAS-CHAVE: Resíduos sólidos. Destinação. Disposição. Aterro sanitário. Incineração. Energia. Sustentabilidade. COMPARATIVE STUDY BETWEEN SANITARY LANDFILL AND INCINERATION FOR ENERGY GENERATION IN A REGIONAL PROJECT FORMED BY A CONSORTIUM OF MUNICIPALITIESABSTRACT: The objective of this work was to carry out a comparative study between sanitary landfill and incineration of urban solid waste, considering the possibility of energy recovery, as well as to compare both systems greenhouse gases and atmospheric pollutant emissions. This study was done within a regional cooperative project among 39 municipalities of central São Paulo State. The following methodologies were adopted: gravimetric characterization of solid waste fractions produced in the region; biogas capture with energy recovery using the equation elaborated by the International Panel on Climate Change (IPCC), with a triangular distribution of the methane production generated over the years by the slow and rapid waste degradation of the wastes; and energy recovery in incineration system. The results showed that the incineration system is 3.2 times more efficient for energy production than the landfill system, which emits greenhouse gases 2.9 times more than the incineration system. The conclusion of the study is that incineration takes advantage of landfill in solid waste management, because it generates more electricity, emits less greenhouse gases, uses less physical land area and, because it is a closed and watertight system, presents better conditions for mitigation of negative environmental impacts. KEYWORDS: Solid waste. Destination. Disposition. Landfill. Incineration. Energy. Sustainability.


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