scholarly journals Calculation of ground-level concentrations and mapping of pollutant dispersion fields

2021 ◽  
Vol 265 ◽  
pp. 02012
Author(s):  
Gulmira F. Keldiyarova ◽  
Tanzila R. Madjidova

This article examines the impact of building materials manufacturing on public health and the environment. It is noted that the assessment processes were carried out on the basis of modern software and the analysis of the width of the atmospheric emissions of harmful substances emitted by enterprises. In addition, the use of normative documents, the accounting of the sources of emissions are recorded. And also, the rules for the field of dispersion of pollutants in the surface layer of the atmosphere are given.

Energies ◽  
2021 ◽  
Vol 14 (20) ◽  
pp. 6783
Author(s):  
Grzegorz Pełka ◽  
Mateusz Wygoda ◽  
Wojciech Luboń ◽  
Przemysław Pachytel ◽  
Artur Jachimowski ◽  
...  

In the paper, the authors focused on the environmental problems of pollution emissions caused by households using batch boilers fired with solid fuels. The aim of this study is to analyse the course of changes in the actual efficiency and emission of a solid fuel updraft boiler, the most popular type of batch boilers used in Poland in recent years. The subject of analysis is the comparison of the values of atmospheric emissions of harmful substances depending on the type of wood burnt in the boiler. The investigation comprises the combustion characteristics of three types of woody biomass (in billets), i.e., pine, birch, and beech. Based on the carried out research of all billets, the beech has the lowest values of CO (3497 mg/m3) and particulate matter (116.9 mg/m3). Despite this, obtained results exceed the current permissible limits based on the standard PN:EN 303-5:2012. The highest efficiency (54.13%) was obtained for birch billets, the lowest for pine (45.13%). The research has shown that the real heating efficiency during the combustion of wood, irrespective of the type of wood being burnt, is low. To summarise, the outdated installations contribute to air pollution several times higher, which indicates the need to replace inefficient heat sources using solid fuels with modern equipment that meets the most stringent standards.


2020 ◽  
Vol 71 (4) ◽  
pp. 100-110
Author(s):  
G.E. MITYAGIN ◽  

Modern studies on the impact of road transport on air pollution indicate a steady increase in negative impact, reflected in an annual increase in emissions. In 2017, they reached the level of 14.5 million tons, which exceeds the level of 2012 by 14 %, while despite the tightening of re-quirements for cars, an increase of 2.5 % was recorded only in the last year [1]. Modern cars do not cause significant harm to the environment, unlike earlier ones, however, the share of relatively new cars is small, about 15 % of the fleet [2]. Positive results in terms of reducing gross emissions of harmful substances, especially in cities, can be achieved by reducing or modernizing the fleet of vehicles owned by both legal entities and individual owners. Weighted and socially responsible decisions in the field of modernization of the fleet of vehicles of individual owners can be made on-ly after a detailed analysis of not only the age structure of the fleet, but also the trends in the limit of service life, as an indicator of the owner’s willingness to voluntarily stop using the car.


2021 ◽  
Author(s):  
Pradip Kharya ◽  
Anil Ramesh Koparkar ◽  
Anand Mohan Dixit ◽  
Hari Shanker Joshi ◽  
Rama Shankar Rath

Abstract Public health interventions are epidemiologically sound cost-effective methods to control the disease burden. Non-pharmacological Interventions are the only mode to control the disease in the absence of medications. To find the impact interventions on the epidemiological indicators of disease progression. This is a secondary data analysis done on COVID-19 data. Median Doubling Time and R0 were calculated for a rolling period of seven days. Interventions were scored from zero to three with the increasing level of stringency. Multivariate linear regression was performed to find the role of individual interventions on R0 and Median Doubling Time. The highest intervention score was reported in the lockdown phase which gradually decreased to lowest level of 22. R0 values settled to a level of 1.25 and the median doubling time increased to 20 days at the end of the study. Public awareness and public health laws were found to be related to both R0 and median doubling time in the Pre-lockdown phase only. Implementation of interventions at the ground level is one of the key factors of the success of PHI. Post implementation poor effectiveness of many interventions is evident from the study. Further studies related to the sequence of interventions is required to further analyse the poor effect of interventions.


2018 ◽  
Vol 41 ◽  
pp. 02016
Author(s):  
Svetlana Grigashkina ◽  
Maksim Grigashkin ◽  
Andrew Miller

The article addresses the impact of harmful emissions on the environment from the activities of energy companies. Thepurpose of the study is to assess the environmental impact of emissions of harmful substances by energy enterprises into the atmosphere of the mining region. The analysis of the harmful impact on the environment of noxious emissions by energy enterprises into the atmosphere of the mining region is carried out. The main result of the work is the generalized SWOT-analysis of the assessment of the negative impact on the environment by noxious emissions from power plants into the atmosphere of the mining region of theKemerovo Region; and the system of measures aimed at solving environmental problems.


Author(s):  
Emilda Emilda

The limitations of waste management in the Cipayung Landfill (TPA) causing a buildup of garbage up to more than 30 meters. This condition has a health impact on people in Cipayung Village. This study aims to analyze the impact of waste management at Cipayung Landfill on public health in Cipayung Village, Depok City. The research is descriptive qualitative. Data obtained by purposive sampling. Data was collected by interviews, observation and documentation. Based on interviews with 30 respondents, it was found that the most common diseases were diarrhea, then other types of stomach ailments, subsequent itching on the skin and coughing. This is presumably because the environmental conditions in the form of unhealthy air and water and clean and healthy living behaviors (PHBS) have not become the habit of the people. The results indicated that there were no respondents who had implemented all of these criteria. In general respondents have implemented  3 criteria, namely maintaining hair hygiene, maintaining skin cleanliness, and maintaining hand hygiene. While maintaining clean water storage is the most often overlooked behavior. To minimize this health impact, improvements in waste management in Cipayung landfill are needed along with continuous socialization and education to develop PHBS habits and the importance of maintaining a clean environment.


2017 ◽  
Vol 25 (1) ◽  
pp. 47-65
Author(s):  
Tapiwa V. Warikandwa ◽  
Patrick C. Osode

The incorporation of a trade-labour (standards) linkage into the multilateral trade regime of the World Trade Organisation (WTO) has been persistently opposed by developing countries, including those in Africa, on the grounds that it has the potential to weaken their competitive advantage. For that reason, low levels of compliance with core labour standards have been viewed as acceptable by African countries. However, with the impact of WTO agreements growing increasingly broader and deeper for the weaker and vulnerable economies of developing countries, the jurisprudence developed by the WTO Panels and Appellate Body regarding a trade-environment/public health linkage has the potential to address the concerns of developing countries regarding the potential negative effects of a trade-labour linkage. This article argues that the pertinent WTO Panel and Appellate Body decisions could advance the prospects of establishing a linkage of global trade participation to labour standards without any harm befalling developing countries.


2011 ◽  
Vol 17 (1) ◽  
pp. 52-59
Author(s):  
A.V. Shavrina ◽  
◽  
I.A. Mikulskaya ◽  
S.I. Kiforenko ◽  
V.A. Sheminova ◽  
...  

Author(s):  
Nina M. Meshchakova ◽  
Marina P. Dyakovich ◽  
Salim F. Shayakhmetov

Introduction.Methanol and its derivatives occupy one of the leading places among the main organic synthesis intermediates in terms of their importance and scale of production. According to experts, by 2027 the global demand for methanol can reach 135 million tons, the annual growth will be about 5.5%. However, there is little information regarding the assessment of working conditions and occupational risks for workers in modern methanol production and its derivatives.The aim of the studyis hygienic assessment of working conditions and the formation of health risks in workers of modern production of methanol and methylamines.Materials and methods.The assessment of the main adverse factors of production is given. When studying the state of health, objective indicators (the results of an in-depth medical examination) and subjective (the results of a quantitative assessment of the risks of the main pathological syndromes associated with health) are considered.Results.According to long-term observations, the concentration of harmful substances in the air of the working area, indicators of labor severity, parameters of physical factors met hygienic requirements, with the exception of industrial noise exceeding the maximum permissible level, as well as labor intensity of 1 degree. The General assessment of working conditions corresponds to the category of harmful 2 degrees (3.2). According to the results of the medical examination and quantitative assessment of the risks of health disorders in workers, the most significant were functional disorders and diseases of the circulatory system. The levels of somatic pathology on the part of the main body systems were significantly higher in apparatchiks compared to the engineering and technical personnel (ETP).Conclusions:In the production of methyl alcohol and methylamines, the main hygienic importance is the impact on workers of the complex of harmful substances of 1-IV hazard classes in low concentrations, increased levels of industrial noise, labor intensity of 1 degree. According to the subjective assessment of health and medical examination, the greatest prevalence of health risks in workers was observed from the circulatory system, and the levels of the revealed somatic pathology were statistically significantly higher in apparatchiks compared with the ETP.


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