scholarly journals Study on Collaborative Emission Reduction in Green-House and Pollutant Gas Due to COVID-19 Lockdown in China

2021 ◽  
Vol 13 (17) ◽  
pp. 3492
Author(s):  
Haowei Zhang ◽  
Xin Ma ◽  
Ge Han ◽  
Hao Xu ◽  
Tianqi Shi ◽  
...  

In recent years, as China’s peaking carbon dioxide emissions and air pollution control projects have converged, scholars have begun to focus on the synergistic mechanisms of greenhouse gas and pollution gas reduction. In 2020, the unprecedented coronavirus pandemic, which led to severe nationwide blockade measures, unexpectedly provided a valuable opportunity to study the synergistic reduction in greenhouse gases and polluting gases. This paper uses a combination of NO2, O3, and CO2 column concentration products from different satellites and surface concentrations from ground-based stations to investigate potential correlations between these monitoring indicators in four Chinese representative cities. We found that XCO2 decreased in March to varying degrees in different cities. It was witnessed that the largest decrease in CO2, −1.12 ppm, occurred in Wuhan, i.e., the first epicenter of COVID-19. We also analyzed the effects of NO2 and O3 concentrations on changes in XCO2. First, in 2020, we used a top-down approach to obtain the conclusion that the change amplitude of NO2 concentration in Beijing, Shanghai, Guangzhou, and Wuhan were −24%, −18%, −4%, and −39%, respectively. Furthermore, the O3 concentration increments were 5%, 14%, 12%, and 14%. Second, we used a bottom-up approach to obtain the conclusion that the monthly averaged NO2 concentrations in Beijing, Shanghai, and Wuhan in March had the largest changes, changing to −39%, −40%, and −61%, respectively. The corresponding amounts of changes in monthly averaged O3 concentrations were −14%, −2%, and 9%. However, the largest amount of change in monthly averaged NO2 concentration in Guangzhou was found in December 2020, with a value of −40%. The change in O3 concentration was −12% in December. Finally, we analyzed the relationship of NO2 and O3 concentrations with XCO2. Moreover, the results show that the effect of NO2 concentration on XCO2 is positively correlated from the point of the satellite (R = 0.4912) and the point of the ground monitoring stations (R = 0.3928). Surprisingly, we found a positive (in satellite observations and R = 0.2391) and negative correlation (in ground monitoring stations and R = 0.3333) between XCO2 and the O3 concentrations. During the epidemic period, some scholars based on model analysis found that Wuhan’s carbon emissions decreased by 16.2% on average. Combined with satellite data, we estimate that Wuhan’s XCO2 fell by about 1.12 ppm in February. At last, the government should consider reducing XCO2 and NO2 concentration at the same time to make a synergistic reduction.

2020 ◽  
Vol 3 (1) ◽  
pp. 8-13
Author(s):  
Moch. Munir ◽  
Amiruddin Kade ◽  
Muslimin Muslimin

This study aims to determine the relations between metacognitive to science process skills on grade VIII students MTs Negeri 3 Parigi. This research is descriptive, the approach used is a quantitative approach, manifested in the form of numbers analyzed by statistics and the results are described. The population is students of MTs Negeri 3 Parigi Academic Year 2017-2018 with a population of three classes, with a sample of 30 students. The instrument used is a metacognitive questionnaire consisting of 50 questions and an essay about science process skills 6 questions test. The result of the prerequisite test of the research result is all metacognitive indicators of normal and linear distributed and based on the regression feasibility test show that all data is feasible for regression test. The result of the regression test and test of determination to obtain a value which is not significant. Based on the results of the research analysis it can be concluded that the relationship of each metacognitive indicator to science process skills was not significant even there were metacognitive indicators that reverse direction significantly. The magnitude of the relationship of each metacognitive indicator with science process skills maximum 15.3%.  


2021 ◽  
Vol 13 (12) ◽  
pp. 6600
Author(s):  
Jing Li ◽  
Lipeng Hou ◽  
Lin Wang ◽  
Lina Tang

The Chinese government has implemented a number of environmental policies to promote the continuous improvement of air quality while considering economic development. Scientific assessment of the impact of environmental policies on the relationship between air pollution and economic growth can provide a scientific basis for promoting the coordinated development of these two factors. This paper uses the Tapio decoupling theory to analyze the relationship between regional economic growth and air pollution in key regions of air pollution control in China—namely, the Beijing–Tianjin–Hebei region and surrounding areas (BTHS), the Yangtze River Delta (YRD), and the Pearl River Delta (PRD)—based on data of GDP and the concentrations of SO2, PM10, and NO2 for 31 provinces in China from 2000 to 2019. The results show that the SO2, PM10, and NO2 pollution in the key regions show strong and weak decoupling. The findings additionally indicate that government policies have played a significant role in improving the decoupling between air pollution and economic development. The decoupling between economic growth and SO2 and PM10 pollution in the BTHS, YRD, and PRD is better than that in other regions, while the decoupling between economic growth and NO2 pollution has not improved significantly in these regions. To improve the relationship between economic growth and air pollution, we suggest that the governments of China and other developing countries should further optimize and adjust the structure of industry, energy, and transportation; apply more stringent targets and measures in areas of serious air pollution; and strengthen mobile vehicle pollution control.


2005 ◽  
Vol 288 (5) ◽  
pp. R1396-R1410 ◽  
Author(s):  
Shaun W. Phillips ◽  
Gerard L. Gebber ◽  
Susan M. Barman

We used spectral analysis and event-triggered averaging to determine the effects of chemical inactivation of the medullary lateral tegmental field (LTF) on 1) the relationship of intratracheal pressure (ITP, an index of vagal lung inflation afferent activity) to sympathetic nerve discharge (SND) and phrenic nerve activity (PNA) and 2) central respiratory rate in paralyzed, artificially ventilated dial-urethane-anesthetized cats. ITP-SND coherence value at the frequency of artificial ventilation was significantly ( P < 0.05; n = 18) reduced from 0.73 ± 0.04 (mean ± SE) to 0.24 ± 0.04 after bilateral microinjection of muscimol into the LTF. Central respiratory rate was unexpectedly increased in 12 of these experiments (0.28 ± 0.03 vs. 0.95 ± 0.25 Hz). The ITP-PNA coherence value was variably affected by chemical inactivation of the LTF. It was unchanged when central respiratory rate was also not altered, decreased when respiratory rate was increased above the rate of artificial ventilation, and increased when respiratory rate was raised from a value below the rate of artificial ventilation to the same frequency as the ventilator. Chemical inactivation of the LTF increased central respiratory rate in four of six vagotomized cats but did not significantly affect the PNA-SND coherence value. These data demonstrate that the LTF 1) plays a critical role in mediating the effects of vagal lung inflation afferents on SND but not PNA, 2) helps maintain central respiratory rate in the physiological range, but 3) is not involved in the coupling of central respiratory and sympathetic circuits.


Author(s):  
Yosica Mariana

Generally, activities conducted by people generate waste. The waste which increasingly rises causing a big problem. Therefore, the role of community in waste management will strongly support the process of solving the waste problem in the community. The purpose of this study was to determine the relationship of engagement and active participation of citizens, as reflected in the attitude of citizens in the activities related to the response to the waste problem in the community. A descriptive method was used in this study to describe the involvement and participation in the prevention of waste. The result showed that the paradigm of PSBM (community-based waste management) appeared sporadically and has not yet received the maximum support from regional governments. A paradigm which is “people pay, the government manages“, has grown within the community for years. It would hardly change people’s behaviour patterns in solving the waste problem in the community since changing the city into a city that is clean, comfortable and healthy involved many parties, including the community.


2007 ◽  
Vol 4 (1) ◽  
pp. 1 ◽  
Author(s):  
Muhamad Rosli Sulaiman ◽  
Sharifah Aishah Syed Abdul Kadir ◽  
Ruhani Ibrahim ◽  
Maryam Husin

Incineration is one of the options available to dispose municipal solid wastes (MSW) as it is capable of breaking down hazardous non-metallic wastes besides destroying bacteria and viruses. In terms of volume of wastes, incineration can reduce almost instantaneously by 90 %. In 1998, the government of Malaysia embarked on a pilot project to use incinerators to dispose MSW in four popular resort islands to see the effectiveness of this technique of waste disposal. Seven units of mini incinerators were installed on the islands and the local municipals were made responsible to manage and maintain.This project looked into the problems arises when incineration is used for MSW disposal on these islands. Data collected revealed that the plants were not properly managed and maintained. This was due to the lack of funds available for effective and smooth operation and the absence of highly expert personnel required to maintain the plant. Other factors that contribute to the inefficiency are inadequate air pollution control facilities and the infrastructure which do not condon the foul odour. Further research work need to be done to monitor the operation of these incinerators in order to explore its potential to dispose waste safely, effectively and cleanly.


2019 ◽  
Author(s):  
fendi ntobuo

One of negative behavior that is mostly done by adolescents is bullying, this behavior is prevalent in the school enviroment. Generally, the factor that influence bullying behavior are family factors, shool factor, peer factor. The focus was on the influence of parenting style because it has a correlation between parenting on an aggressive behavior. The purpose of this study was to determine the relationship of parenting to bullying behavior in Bolangitan 1 N Senior High study approach. The total population was 48 respondents. The result of study by using the Chi Square statistical tes tah there is a significant relationship between parenting of bullying behavior in Bolangitan N 1 School with a value (p value: 0,000). It can concluded there is a significant relationship between parenting style towards bullying behavior in Bolangitan 1 Senior High School. It suggest that counseling can be held about bullying behavior and its response to adolescents.


2020 ◽  
Vol 11 (1) ◽  
pp. 110-119
Author(s):  
Julianto Julianto ◽  
Izma Daud ◽  
Sari Milyati

Abstrak  Latar Belakang :Access block adalah situasi dimana pasien yang mengalami lama rawat di IGD 6 karena kurangnya akses ke ruang rawat inap dan kepadatan jumlah pasien yang tidak terkendali, dampaknya ditemukan bahwa semakin lama access block  semakin tinggi pula perburukan pasien dalam 24 jam.Tujuan : ini bertujuan untuk mengetahui hubungan access block dengan perburukan kondisi pasien di Instalasi Gawat Darurat RSUD Ulin Banjarmasin.Metode :Penelitian menggunakan desain analitik dengan pendekatan cross sectional. Jumlah sampel yang diambil berjumlah 40 orang dengan teknik pengambilan accidental sampling. Analisis data melalui uji spearman rank.Hasil : Hasil uji dipapatkan nilai p hitung 0,000 (0,05) ada hubungan antara access block dengan perburukan kondisi pasien di instalasi gawat darurat RSUD Ulin Banjarmasi.Simpulan: Berdasarka hasil penelitian Ada hubungan antara access block dengan perburukan kondisi pasien di Instalasi Gawat Darurat RSUD Ulin Banjarmasin dengan nilai P= 0,000 nilai α = 0,05 dengan nilai koefisien korelasi 0,588 Kata kunci: Access Block, Perburukan Pasien. Abstract Background :Access block is a situation where patients who experience length of stay in the ED 6 due to lack of access to the inpatient room and uncontrolled density of patients, it is found that the longer the access block the higher the deterioration of patients in 24 hours.Purpose: This study aims to determine the relationship of access block with deteriorating condition of patients in Emergency Installation Ulin Hospital Banjarmasin.Method : The research method uses an analytical design with a cross sectional approach. The number of samples taken is 40 people using the accidental sampling technique. Data analysis through spearman rank test.Result: The test results obtained p value calculated 0,000 (0.05) there is a relationship between the access block and deterioration of the patient's condition at the Ulin Banjarmasin Hospital emergency department.Conclusion: Based on the results of the study, there is a relationship between the access block and the worsening of the patient's condition at the Emergency Department of RSUD Ulin Banjarmasin with a value of P = 0.000 value α = 0.05 with a correlation coefficient value of 0.588. Keywords: Access Block, Patient worsening 


Author(s):  
Erwin Kurniawan A. ◽  
Muhammad Awaluddin ◽  
Fitriadi Fitriadi ◽  
Arfiah Busari ◽  
Dio Caisar Darma

Indonesia is a developing country that has always prioritized sustainable development. In achieving these development goals, Indonesia needs to achieve economic growth by improving population welfare and increasing income. With the form of panel data from 34 provinces in Indonesia that have unique characteristics, the author presented them during 2015-2019. Through multiple linear regression, this study seeks to discuss the relationship of unemployment, labor force participation rate, and poor people to Indonesia’s GDP growth. These findings suggest that the three macroeconomic variables have a negative impact on GDP. Regarding GDP growth, only unemployment has an actual effect, while others have no significant effect. The implications of the policies pursued by the government are not only paying attention to economic aspects but social problems that are expected to spur economic development.


Author(s):  
Rahmi Fitria

Menarche is a sign of the proper functioning of a woman's reproductive organs when having her first menstruation and is common in the age range of 10-16 years. Menarche is influenced by several factors, one of which is nutritional status. According to Noviyanti research (2016) nutrition affects a girl's sexual maturity so that it affects the slowness of menarche. Similarly, research conducted by Munda (2016) that students with overweight nutritional status faster experienced menarche compared to students who have normal nutritional status and underweight. This study aims to find out the relationship of nutritional status to the age of menarche grade VII students in Pesantren Bahrul Ulum. This research method uses descriptive method with cross sectional research design. This research was conducted in SDN 007 Rambah. The sample of this study amounted to 45 respondents. Data collection uses simple correlation and linear regression tests. The results of this study stated that the average nutritional status of grade VII students is 21.60Kg /m2, and the nutritional status of students is at least 16.90 Kg / m2 and the highest nutritional status is 27.60 Kg / m2 with an average age of menarche 12.11 years. The conclusion of this study is that there is no relationship of nutritional status with menarche age in grade VII students in Pesantren Bahrul Ulum with a value of p= 0.036.


2017 ◽  
Vol 1 (2) ◽  
pp. 85-92
Author(s):  
Maya Sofiyani ◽  
M Imron Mawardi ◽  
P Sigit Purnomo ◽  
Hariza Adnani

The effort of leptospirosis prevention in Sleman currently only limited to counseling and treatment of the patient, while the patient search, ways of transmission of leptospirosis from rats to humans, have never implemented in an integrated manner. The study aimed to investigated the relationship between the environmental residential condition with the risk of leptospirosis in Sleman Regency. The research used a survey method  with case control study design. The results showed that environmental factors, which are not proved to have a relationship with the risk of leptospirosis were residential condition ({p=0,108} OR=3,818 {95%CI:0,922–15,811}), the trash bin condition ({p=1,000} OR=1,138 {95%CI:0,420–3,081}) and the sewer condition ({p=0,415} OR=0,551 {95%CI:0,187–1,624}). Environmental factors that associated with the risk of leptospirosis was the presence of rats ({p=0,001} OR=13,594 {95%CI:2,754–67,107}). The effort should be made in order to prevent the increasement of Leptospirosis cases by sanitation improvement and avoiding direct contact with rats as well as it litter. The Government should be pay more attention in the vector control programs, especially in leptospirosis prone areas so the prevention effort to be able run effectively and efficiently.


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