scholarly journals Reducing the impact of hazardous substances released in the air of the delayed coking unit operator working area

2021 ◽  
Vol 78 (2) ◽  
pp. 116-120
Author(s):  
P.S. Minakova ◽  
A.I. Agoshkov ◽  
A.M. Faizulin
Keyword(s):  
Human Body ◽  
Hazardous Substances ◽  
Delayed Coking ◽  
Oil Refineries ◽  
Exhaust Ventilation ◽  
Unit Operator ◽  
Harmful Substances ◽  
The Impact

The article discusses the issue of the problems of oil refineries in Russia, the impact of harmful chemicals on the human body. A supply and exhaust ventilation unit is proposed to reduce the concentration of harmful substances in the air of the operator's working area of the delayed coking unit.

scholarly journals CRYSTALLINE SILICA — A HAZARDOUS SUBSTANCE IN CONSTRUCTION WORKS

2021 ◽  
Vol 6 (4(54)) ◽  
pp. 28-29
Author(s):  
A.Yu. Moiseenko
Keyword(s):  
High Risk ◽  
Human Body ◽  
Crystalline Silica ◽  
Hazardous Substances ◽  
Hazardous Substance ◽  
Construction Sites ◽  
Risk Of Exposure ◽  
The Impact ◽  
Construction Works

Workers on construction sites are at high risk of exposure to various types of hazardous substances, such as crystalline silica. The main ways of reducing the impact on the human body are considered.

scholarly journals DETERMINATION OF THE HAZARD OF PLASTIC WASTE FOR INVESTIGATION OF THE POSSIBILITY OF THEIR UTILIZATION BY THERMAL METHODS

2021 ◽  
Vol 37 (2) ◽  
pp. 25-37
Author(s):  
L. M. Markina ◽  
S. Yu. Ushkats ◽  
N. Yu. Zholobenko
Keyword(s):  
Waste Management ◽  
Plastic Waste ◽  
Hazardous Substances ◽  
Quantitative Composition ◽  
Waste Processing ◽  
Toxic Substances ◽  
Thermal Methods ◽  
Harmful Substances ◽  
The Impact ◽  
Plastic Products

Recently, the production of plastics has increased several times and the demand for plastic materials continues to grow, which leads to an increase in plastic waste, which creates a number of environmental problems, as well as the potential for the waste management industry. The article considers the issues of environmental pollution due to the increase in the amount of plastic waste, their accumulation with an emphasis on various chemicals contained in plastic products to improve the properties of polymers and extend their service life. The qualitative and quantitative composition of additives, such as plasticizers, flame retardants, heat stabilizers, functional additives, dyes and fillers, which may contain heavy metals, halogens, fluorine, tosho. The impact of plastic waste on the environment and the impact on public health have been established, and the ways in which harmful substances enter the environment have been identified. Methods for detecting toxic substances in water, air and soil, and some harmful substances released from plastic products in different conditions are considered. The release of chemicals into the environment occurs during various processes of plastic waste management, as well as from products made from secondary raw materials. Therefore, the rational collection, transportation, sorting, storage, disposal, disposal and disposal should be carried out in such a way as to exclude the formation and release of harmful substances at every stage, ensuring continuous protection of the environment and human health, such as personnel working at sorting stations or at waste processing plants. The detection of hazardous substances in the environment and waste processing products is recognized, therefore the methodology of ensuring the safety of plastic waste management at all stages is proposed.

Working conditions and the formation of health risks among workers of the petrochemical industry engaged in the production of methanol and its derivatives

2019 ◽  
pp. 266-271
Author(s):  
Nina M. Meshchakova ◽  
Marina P. Dyakovich ◽  
Salim F. Shayakhmetov
Keyword(s):  
Working Conditions ◽  
Health Risks ◽  
Quantitative Assessment ◽  
Circulatory System ◽  
Medical Examination ◽  
Physical Factors ◽  
Labor Intensity ◽  
Industrial Noise ◽  
Harmful Substances ◽  
The Impact

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.

Transport and Chronic Injuries Caused by Improper Use of Cell Phones：Evidences from 41 Studies (Preprint)

2020 ◽  
Author(s):  
Xinxi Cao ◽  
Yangyang Cheng ◽  
Chenjie Xu ◽  
Yabing Hou ◽  
Hongxi Yang ◽  
...  
Keyword(s):  
Human Body ◽  
Cell Phone ◽  
Injury Risk ◽  
Negative Impact ◽  
Mental Disease ◽  
Cell Phones ◽  
Cell Phone Use ◽  
Improper Use ◽  
Chronic Injuries ◽  
The Impact

BACKGROUND Cell phone use brought convenience to people, but using phones for a long period of time or in the wrong way and with a wrong posture might cause damage to the human body. OBJECTIVE To assess the impact of improper cell phone use on transport and chronic injuries. METHODS Studies were systematically searched in PubMed, EMBASE, Cochrane, and Web of Science up to April 4, 2019 and relevant reviews were searched to identify additional studies. A random-effects model was used to estimate the overall pooled estimates. RESULTS Cell phone users were at a higher risk for transport injuries (RR: 1.37, 95%CI: 1.221.55), long-term use of cell phones increased the transport injury risk to non-use or short-term use (RR: 2.10, 95% CI: 1.632.70). Neoplasm risk caused by cell phone use was 1.07 times that of non-use (95% CI: 1.011.14); Compared with non-use, cell phone use had a higher risk of eye disease, with a risk of 2.03 (95% CI: 1.273.23), the risk of mental disease was 1.26 (95% CI: 1.171.35), the risk of neurological disorder was 1.16 (95% CI: 1.021.32), and a pooled risk of other chronic injuries was 1.20 (95% CI: 0.981.59). CONCLUSIONS Cell phone use at inappropriate situations has a negative impact on the human body. Therefore, it is necessary to use cell phones correctly and reasonably.

scholarly journals Mesoporous TiO2-based architectures as promising sensing materials towards next-generation biosensing applications

2021 ◽  
Author(s):  
Fauzan Amri ◽  
Ni Luh Wulan Septiani ◽  
Muhammad Rezki ◽  
Muhammad Iqbal ◽  
Yusuke Yamauchi ◽  
...  
Keyword(s):  
Human Body ◽  
Mesoporous Tio2 ◽  
Next Generation ◽  
Harmful Substances

This review highlights the recent development of mesoporous TiO2-based architectures as promising sensing materials for diagnosing diseases and detecting harmful substances in the human body.

scholarly journals Association of temporary Environmental Protection Agency regulation suspension with industrial economic viability and local air quality in California, United States

2021 ◽  
Vol 33 (1) ◽  
Author(s):  
Emily Chang ◽  
Kenneth Zhang ◽  
Margaret Paczkowski ◽  
Sara Kohler ◽  
Marco Ribeiro
Keyword(s):  
United States ◽  
Air Quality ◽  
Environmental Protection ◽  
Environmental Protection Agency ◽  
Manufacturing Industry ◽  
Economic Viability ◽  
Treatment Control ◽  
Oil Refineries ◽  
Pollution Levels ◽  
The Impact

Abstract Background This study seeks to answer two questions about the impacts of the 2020 Environmental Protection Agency’s enforcement regulation rollbacks: is this suspension bolstering the economic viability of industries as oil and manufacturing executives claim they will and are these regulations upholding the agency’s mission of protecting the environment? Results To answer the former question, we utilized 6 months of state employment level data from California, United States, as a method of gauging the economic health of agency-regulated industries. We implemented a machine learning model to predict weekly employment data and a t-test to indicate any significant changes in employment. We found that, following California's state-issued stay-at-home order and the agency’s regulation suspension, oil and certain manufacturing industries had statistically significant lower employment values. To answer the latter question, we used 10 years of PM2.5 levels in California, United States, as a metric for local air quality and treatment–control county pairs to isolate the impact of regulation rollbacks from the impacts of the state lockdown. Using the agency’s data, we performed a t-test to determine whether treatment–control county pairs experienced a significant change in PM2.5 levels. Even with the statewide lockdown—a measure we hypothesized would correlate with decreased mobility and pollution levels—in place, counties with oil refineries experienced the same air pollution levels when compared to historical data averaged from the years 2009 to 2019. Conclusions In contrast to the expectation that the suspension would improve the financial health of the oil and manufacturing industry, we can conclude that these industries are not witnessing economic growth with the suspension and state shutdown in place. Additionally, counties with oil refineries could be taking advantage of these rollbacks to continue emitting the same amount of PM2.5, in spite of state lockdowns. For these reasons, we ask international policymakers to reconsider the suspension of enforcement regulations as these actions do not fulfill their initial expectations. We recommend the creation and maintenance of pollution control and prevention programs that develop emission baselines, mandate the construction of pollution databases, and update records of pollution emissions.

scholarly journals The Impact of Tick-Borne Diseases on the Bone

2021 ◽  
Vol 9 (3) ◽  
pp. 663
Author(s):  
Imran Farooq ◽  
Tara J. Moriarty
Keyword(s):  
Bone Marrow ◽  
Lyme Disease ◽  
Bone Loss ◽  
Human Body ◽  
Virus Disease ◽  
Hemorrhagic Fever ◽  
Research Literature ◽  
Tick Borne Encephalitis ◽  
Bone Marrow Function ◽  
The Impact

Tick-borne infectious diseases can affect many tissues and organs including bone, one of the most multifunctional structures in the human body. There is a scarcity of data regarding the impact of tick-borne pathogens on bone. The aim of this review was to survey existing research literature on this topic. The search was performed using PubMed and Google Scholar search engines. From our search, we were able to find evidence of eight tick-borne diseases (Anaplasmosis, Ehrlichiosis, Babesiosis, Lyme disease, Bourbon virus disease, Colorado tick fever disease, Tick-borne encephalitis, and Crimean–Congo hemorrhagic fever) affecting the bone. Pathological bone effects most commonly associated with tick-borne infections were disruption of bone marrow function and bone loss. Most research to date on the effects of tick-borne pathogen infections on bone has been quite preliminary. Further investigation of this topic is warranted.

scholarly journals A dynamic increase in the impact of noise on the human body, in particular, on cardiovascular diseases

2021 ◽  
Vol 1029 ◽  
pp. 012110
Author(s):  
M Lekhman ◽  
M Shubitidze ◽  
A Litvinov ◽  
I Zanina ◽  
O Pashkova ◽  
...  
Keyword(s):  
Cardiovascular Diseases ◽  
Human Body ◽  
The Impact

Analysis of electromagnetic absorption in new design of PIFA antenna using metamaterials

2021 ◽  
Author(s):  
Hamza Ben Hamadi ◽  
said ghnimi ◽  
Lassaad Latrach ◽  
Philippe Benech ◽  
Ali Gharsallah
Keyword(s):  
Human Body ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Local Area ◽  
Dual Band ◽  
Area Network ◽  
Dual Band Antenna ◽  
Cubic Model ◽  
The Impact ◽  
Pifa Antenna

Abstract This paper presents the design, simulation and fabrication of a miniaturized wearable dual-band antenna on a semi-flex substrate; she is operable at 2.45/5.8 GHz for wireless local area network applications. The electrical and radiation characteristics of this proposed antenna were obtained by means of a technical of insertion of a slot to tune the operating frequencies. To study the impact of the electromagnetic radiation of the structure of the human body, it is necessary to minimize the back radiation towards the user. Therefore, in this work, a multi-band artificial magnetic conductor (AMC) was placed directly above a dual-band planar inverted F antenna to achieve a miniaturization with excellent radiation performance. The simulation results were designed and simulated using Studio commercial software (CST). A good agreement was achieved between the results of simulation and the experimental. The Comparison of measurement results indicates that the gain improved from 1,84 dB to 3,8 dB, in the lower band, and from 2,4 dB to 4,1 in the upper band, when the antenna is backed by the AMC plane. The front-to-back ratio of the AMC backed PIFA antenna was also enhanced. Then, to ensure that the proposed AMC is harmless to the human body, this prototype was placed on three-layer human tissue cubic model. It was observed that the through inclusion of plane AMC, the peak specific absorption rate (SAR) decreased to 1,45 and 1,1 W/kg at 2,45 and 5.8 GHz, respectively (a reduction of around 3,7 W/kg, compared with an antenna without (AMC).

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