scholarly journals Modelling of the Chemical Halo of Dust Pollution Migration in Loparite Ore Tailings Storage Facilities

Minerals ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 1077
Author(s):  
Eugenia Krasavtseva ◽  
Victoria Maksimova ◽  
Dmitriy Makarov ◽  
Eugeniy Potorochin
Keyword(s):  
Maximum Permissible Concentration ◽  
Rare Metal ◽  
Meteorological Conditions ◽  
Storage Site ◽  
Dust Pollution ◽  
North West ◽  
The North ◽  
Geotechnical Characteristics ◽  
Murmansk Region ◽  
Ore Dressing

The article presents a study of the environmental impact of dusting tailing dumps of rare-metal ore dressing in the Murmansk region of Russia. The purpose of the study was to establish patterns in the atmochemical halo migration of the dust pollution of loparite ore dressing tailings. The geotechnical characteristics and material composition of the tailings material have been investigated. Potentially dusty areas identified. Models of dispersion of inorganic dust under different meteorological scenarios are constructed: at low wind load, normal and unfavorable meteorological conditions. The modeling of the spread of pollutants in the area exposed to dust at the storage site was carried out in the program for modeling atmospheric pollution Ecolog-4.60. Calculation of the dispersion of inorganic dust containing 20–70% SiO2 showed that the atmochemical halo of tailings dust pollution spreads over tens of kilometers, and already at a wind speed of about 8 m/s, the concentration of suspended solids at the border of the enterprise sanitary protection zone exceeds the maximum one-time maximum permissible concentration is 3–3.3 times, and under unfavorable meteorological conditions—Dusting reaches the boundaries of the residential area (inhabited locality Revda), located in the north-west of the enterprise, and exceeds the MPCm.o. 1.5 times.

scholarly journals The Part Played by Meteorological Conditions on Respiratory Mortality in Liverpool

1932 ◽  
Vol 32 (1) ◽  
pp. 67-78
Author(s):  
Hilda M. Woods ◽  
C. O. Stallybrass
Keyword(s):  
Annual Report ◽  
Medical Officer ◽  
Mortality Rates ◽  
Incidence Rates ◽  
Meteorological Conditions ◽  
Ministry Of Health ◽  
Great Caution ◽  
North West ◽  
Respiratory Mortality ◽  
The North

In the annual report of the Chief Medical Officer of the Ministry of Health for 1925 (p. 22) the incidence rates of notifications of pneumonia in four-weekly periods are compared for large geographical groups in England and Wales. These rates show the divergence between the north and north-west and the remainder of the country, and also the fact that the north-west (Lancashire and Cheshire) usually compares badly with the north. During 1923 “in none of the thirteen periods was the rate for the north-west less than 15 per cent, in excess of the all-England rate and in ten it was equal to or greater than the rate for the north.” That these remarks still apply may be seen from the figures for 1930 (Table I). If one compares some of the large Lancashire towns with London the contrast is even greater (Table II). The towns giving the largest number of notifications of pneumonia are Liverpool and Manchester. These towns alone contributed 48 per cent, of the total number of notified cases of pneumonia in Lancashire during 1930. Their combined population forms about 30 per cent, of the total. Great caution is, however, required in drawing deductions from rates of notification of pneumonia, as considerable differences exist between one place and another in the extent to which the obligation to notify is complied with. Mortality rates provide a sounder basis of comparison.

scholarly journals Enterovirus infection morbidity and peculiarities of nonpolio enteroviruses circulation on some territories of Russia in 2017

2018 ◽  
Vol 10 (4) ◽  
pp. 124-133 ◽  
Author(s):  
N. I. Romanenkova ◽  
L. N. Golitsyna ◽  
M. A. Bichurina ◽  
N. R. Rozaeva ◽  
O. I. Kanaeva ◽  
...  
Keyword(s):  
Komi Republic ◽  
Etiological Agent ◽  
Enterovirus Infection ◽  
Isolation And Identification ◽  
Saratov Region ◽  
Genome Region ◽  
North West ◽  
The North ◽  
Murmansk Region ◽  
Different Types

Aim: Characteristics of enterovirus infection morbidity and study of peculiarities of enterovirus circulation on some territories of Russia in 2017. Materials and methods: We investigated more than 5000 samples from the patients with enterovirus infection. The isolation and identification of enteroviruses were conducted by virological method and by partial sequencing of the genome region VP1. Phylogenic trees were constructed according to the method of Bayesian Monte Carlo Markov Chain. Results: Epidemic process and clinical picture of enterovirus infection were not the same on different territories. Peculiarities of the circulation of different types of enteroviruses on the territories were also different. In Saratov region 65% of cases were represented by enterovirus meningitis. In Murmansk region and in the Komi Republic enterovirus infection with exanthema prevailed, 95% and 60% correspondingly. In Saratov region enterovirus ECHO18 was the etiological agent of enterovirus meningitis. In Murmansk region and in the Komi Republic the cases were connected mainly with Coxsackieviruses A6. The strains of enterovirus ECHO18 were distributed to three clusters. The strains which provoked enterovirus meningitis in Saratov region belonged to cluster 3, they were formed separately from other strains of this enterovirus type and differed from the stains of ECHO18 which circulated in the North-West of Russia. The strains of Coxsackieviruses A6 identified in the North-West of Russia belonged to three sub-genotypes 5, 6, 8 of pandemic genotype of CoxsackievirusesA6. The majority of the strains belonged to sub-genotypes 6 and 8 which in 2017 dominated in the structure of Coxsackieviruses A6 in the North-West of Russia and in Russia. Conclusion: Epidemic peaks of enterovirus infection represented by different clinical forms of the disease were provoked by different types of enteroviruses. Enterovirus ECHO18 was the etiological agent of enterovirus meningitis. The main etiological factors of enterovirus infection with exanthema were Coxsackieviruses A6 of different sub-genotypes.

scholarly journals Use of activated peat for remediation of soils contaminated with petroleum products

2020 ◽  
Vol 28 (2) ◽  
pp. 160-171
Author(s):  
Ekaterina A. Adelfinskaya ◽  
Vladimir A. Myazin
Keyword(s):  
Germination Rate ◽  
Organic Fertilizer ◽  
Petroleum Products ◽  
Oil Products ◽  
Mineral Fertilizers ◽  
North West ◽  
The North ◽  
Test Culture ◽  
Murmansk Region ◽  
The Russian Federation

One of the most serious environmental problem in the Far North of the Russian Federation is the pollution of the territory by oil and oil products. Ecosystems of this region are extremely vulnerable, their remediation after anthropogenic impact, such as spill of fuels, can last for decades. This is the reason for necessity of the development of effective methods for cleaning and restoring oil-contaminated lands. As a result of undertaken laboratory study, the possibility of bioremediation of soils contaminated with oil products using activated peat as a sorbent and organic fertilizer was shown. Two weeks after the addition of activated peat, the content of petroleum hydrocarbons in the soil decreased by 22-47% due to dilution of pollution and improvement of air and nutrient regime. After reclamation, the germination rate of the seeds of a test culture increased by 1,6-3,7 times. The optimum amount of peat required for adding into contaminated sandy soil, depending on the degree of contamination, has also been established. Based on the studies, recommendations for the remediation of the contaminated area of 0.07 ha located in the north-west of the Murmansk region using peat and mineral fertilizers were developed.

GREAT VICTORY ECONOMY: ARCTIC INDUSTRY DURING THE 1941–1945 WAR

2020 ◽  
Vol 10 (6) ◽  
pp. 1115-1128
Author(s):  
S.S. Vopilovskiy ◽  
Keyword(s):  
Arctic Region ◽  
Energy System ◽  
The Arctic ◽  
North West ◽  
Industrial Enterprises ◽  
The North ◽  
Murmansk Region ◽  
Real Picture ◽  
The City ◽  
Great Victory

The study presents the activities of the leading industrial enterprises of the Russian Federation Arctic zone during the Great Patriotic War. The mechanism of restructuring civilian industrial enterprises of Murmansk on a war footing in difficult climatic, economic and psychological conditions of war is analyzed. The official documents that marked the beginning of the anti-Hitler coalition were examined. The social composition of the population of the Kola Peninsula has been determined. The heroic work of Murmansk residents at the main industrial enterprises of the city is presented. The role of executives is highlighted. The huge contribution of the key enterprises to achieving the Victory is estimated. The key economic indicators of the industrial enterprises’ activities showing the real picture of the economic situation at the industries in the difficult conditions of the Arctic hostilities are outlined. The labor activity of workers of the most important enterprises of the People’s Commissariat for Fishery of the USSR in the city of Murmansk in terms of their industrial importance: seaport, fishing port, shipyard, Kirov railway, Kola regional energy system is presented. It has been determined that these enterprises are still the main economy base of the Arctic region nowadays. The purpose of the study is to assess the Soviet control system in wartime period 1941-1945 for the defeat of Nazi Germany. The preservation and further development of the leading industrial enterprises of the city of Murmansk and the Murmansk region is substantiated. It is determined that the heroic labor of the northerners made a significant contribution to the approach of the Victory. Celebrating the 75th anniversary of the Great Victory of the Soviet people over the enemy, today’s Murmansk residents preserve the bright memory of all residents of the military Murmansk. Today Murmansk is the largest industrial center at the North-West of Russia.

scholarly journals Problems of distance learning for students with disabilities in a pandemic

2020 ◽  
Vol 87 ◽  
pp. 00044
Author(s):  
O.A. Denisova ◽  
O.L. Lekhanova ◽  
T.V. Gudina
Keyword(s):  
Distance Learning ◽  
Students With Disabilities ◽  
Federal District ◽  
Disabled Students ◽  
North West ◽  
Limited Mobility ◽  
The North ◽  
Murmansk Region ◽  
The Disabled ◽  
Pskov Region

The article considers the problems of distance learning for students with disabilities during a pandemic. The survey was organized and conducted to reveal the attitude to distance learning and determine the challenges encountered. During the survey, the disabled students’ satisfaction with distance learning during the pandemic was assessed, the advantages and difficulties they faced during the period of quarantine study were identified. The survey involved the students with visual, hearing and movement impairments, as well as the students with limited mobility and the disabled students with systemic diseases. All the students study at Russian universities located on the territory of 8 constituent entities of the North-West Federal District (Arkhangelsk region, Vologda region, Kaliningrad region, Murmansk region, Novgorod region, Pskov region, Republic of Karelia, Republic of Komi). The total of 230 respondents took part in the survey. The article analyzes the disabled students’ response to the quarantine caused by the pandemic, and also describes the specificity and severity of the problems depending on the kind of the students’ health limitations. The analysis of the responses allowed us to conclude that the problems of the socio-psychological (low self-motivation and self-organization, fatigue, low mood, lack of live communication) and technical (the problems with the Internet communication and distance learning platforms) come to the fore. The identified difficulties allowed the authors to make a list of recommendations to be used when organizing distance learning for students with disabilities. The proposed recommendations imply the application of the practice of permanent psychological-pedagogical and socio-psychological support for the education of students with disabilities.

scholarly journals MUNICIPAL WASTEWATER IN EXPERIMENTS ON RECLAMATION OF LOPARITE ORE DRESSING TAILINGS

2021 ◽  
Vol 26 (3) ◽  
pp. 44-55
Author(s):  
E. A. Krasavtseva ◽  
◽  
T. T. Gorbacheva ◽  
L. A. Ivanova ◽  
V. V. Maksimova ◽  
...  
Keyword(s):  
Laboratory Experiment ◽  
Vegetation Cover ◽  
Municipal Wastewater ◽  
Rare Metal ◽  
Wastewater Sludge ◽  
Metal Industry ◽  
Organic Additives ◽  
Surface Application ◽  
Murmansk Region ◽  
Ore Dressing

Introduction. This paper discusses the effectiveness of using clarified municipal wastewater (CMW) and wastewater sludge (WS) to form stable phytocenoses at the waste storage facilities of the rare metal industry in Murmansk Region. The restoration of the vegetation cover at tailing dumps is limited by the low content of organic matter and associated nitrogen, and the low bioavailability of plant nutrients (K, Ca, Mg, P). The use of WS and other ameliorants of organic nature is a type of chemical amelioration aimed primarily at improving the edaphic properties of man-made soils. Methods. We examined the loparite ore dressing tailings sampled in the operating field of the tailing dump of a rare metal industry enterprise in the center of the Kola Peninsula. In the course of the study, we determined the suitability of the man-made soil for reclamation. To form seeded phytocenosis in a laboratory experiment, seeds of meadow fescue (Festuca pratensis Huds.) were used. The laboratory experiment involved the introduction of CMW, WS, a mixture of WS with silica clay into the soil, and a check. Analysis of the soil and plants was performed using inductively coupled plasma mass spectrometry. The quality of seeded cenosis was assessed according to the following parameters: green biomass, plant height, and projective cover. Results. The preliminary assessment of the man-made soil suitability for reclamation showed the following: the loparite ore dressing tailings have unfavorable characteristics both for the natural regeneration of the vegetation cover and biological reclamation. The introduction of ameliorants had a stimulating effect on the growth of terrestrial biomass during the formation of phytocenosis under laboratory conditions. The results of leaf analysis confirmed the effectiveness of the surface application of organic additives with regard to the loparite ore dressing tailings. Conclusion. In the laboratory experiment with the simulation of surface application, the stimulating effect of unconventional ameliorants (clarified municipal wastewater, wastewater sludge, and its mixture with silica clay) on the supply of nutrients to the reclaimed loparite ore dressing tailings was confirmed. The investigated ameliorants can be recognized as suitable for the biological reclamation of the dressing tailings of the rare metal industry, which does not require costly earthing and the application of protective polymer coatings.

Change Trends and Corresponding Meteorological Character of Air Pollition in Beijing

2011 ◽  
Vol 183-185 ◽  
pp. 1209-1214
Author(s):  
Hai Yan Ding ◽  
Xiao Ling Zhang ◽  
Wei Wei Pu ◽  
Di He
Keyword(s):  
Air Quality ◽  
Wind Speed ◽  
Meteorological Data ◽  
Pollution Index ◽  
Meteorological Conditions ◽  
Pollutant Concentration ◽  
North West ◽  
Average Value ◽  
The North ◽  
North Wind

Based on the monitoring data of air quality and meteorological data from 2003 to 2009 in Beijing, the change of air quality and pollutants concentration are analyzed, and their relationship with meteorological conditions are figured out. The results showed below.(1)The annual average value of API (Air Pollution Index) decreased from 2007 gradually, and the value of 2008 is equal to 86.3% of 2007. As to monthly changing trend of API, the value in April is highest, and is lowest in august. API in summer is lowest relatively in all-year, and it is worst in spring. (2)The pollutants concentration of PM2.5, SO2, NO2, and NOX showed decreasing trends from 2006 to 2009. The monthly changing trends of PM2.5, SO2, NO2, and O3 were different. The monthly average concentrations of NOX SO2, NO2 and NOX were lowest in July, while the high values appeared in different month.(3)Correlation between pollutant concentration and meteorological conditions are figured out: SO2, NO2 and NOX are negative related to temperature, wind speed and sunlight hours and positive related to humidity, while O3 is adverse. PM2.5 is well related to relative humidity and cloud cover. PM2.5, SO2, NO2 and NOX are all positive related to wind speed.(4)The air quality and pollutant concentration displayed significant in different under each wind direction. When north wind blows, the average value of API is lowest relatively and south wind is adverse. The concentration of PM2.5, SO2, NO2 and NOX are lower when Beijing is controlled by the north wind or north-west wind.

scholarly journals Exploration of Northern Commercial Fishing Area Resources and Sustainable Use Challenges and Ways to Resolve them

2020 ◽  
Author(s):  
Vsevolod Shchetinskiy ◽  
Boris Petrov
Keyword(s):  
Consumer Demand ◽  
Raw Materials ◽  
Sustainable Use ◽  
Commercial Fishing ◽  
Fishing Industry ◽  
North West ◽  
The North ◽  
Murmansk Region ◽  
Underutilized Species ◽  
Fishing Area

The present article is based on the review of the current patent, scientific and technical sources. It indicates the main challenges of fishing industry in the North-West Russia with the Murmansk Region taken as an example. The basic fishing techniques, being employed by the local fishing companies, are considered. The article defines the main challenges of the Northern commercial fishing area resources exploration and sustainable use. It substantiates the necessity to increase the share of fishing tools with better selectivity. It is concluded that the raw-materials supply crisis is likely to set in the fish processing industry. The article analyses the existing methods of processing applied to the underutilized fishing grounds. It reveals a correlation between the intensiveness of research applied to specific fishing grounds and the consumer demand availability and scope. It is concluded that predominantly research is made with regard to the use of underutilized species for production of dietary supplements and components which alter some food properties. The article substantiates the necessity to use the non-conventional hydrobiont species for food production, based on the consumer demand data. A study of the main standards has been performed with regard to regulation of the hydrobiont catching issues. The article reviews the underutilized species of the Northern commercial fishing area which are most prospective from the production and processing point of view. It concludes with the prospects of the proposed option for the fishing industry development and its probable impact on the development of coastal infrastructure and of the whole region.

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