scholarly journals DETERMINATION OF SOIL QUALITY IN MAYKOP BASED ON THE CONTENT ANALYSIS OF SOIL ALGAE AND CYANOBACTERIA

2017 ◽  
Vol 14 ◽  
pp. 128-135
Author(s):  
Emiliya A. Sirotiuk ◽  
Saida R. Zhemadukova
Keyword(s):  
Heavy Metals ◽  
Soil Contamination ◽  
Soil Quality ◽  
Oil Products ◽  
City Center ◽  
Key Indicator ◽  
City District ◽  
Destructive Processes ◽  
The City

The paper presents the results of the study on soil quality in Maykop using algae indication. The findings suggest soil contamination by heavy metals and oil products, and the beginning of destructive processes. The city center is recognized to be the most unfavorable ecological area of the city. There are no diatoms in soil cyanoalgological sinusiae ‒ a key indicator of oil contamination of soils. On the contrary, cyanobacteria prevail, which are resistant to soil contamination with oil products and heavy metals. One of the main environmental problems in Maykop is soil contamination with heavy metals and oil products. The main contributor to soil contamination is city transport and housing and public services. Pollutants enter soil through precipitation and leaf and branch shedding, deposit from the air, and are directly absorbed by moist soil. The results of algological studies suggest that destructive processes have begun in the soils in Maykop. This is evidenced by the composition of soil cyanoalgological sinusiae and by the population of main groups of microphototrophs. The most ecologically disadvantaged city district is «Central Market».

scholarly journals Soil contamination with heavy metals in the sh. Rashidovsky district of Jizzakh region and methods of their decrease from the soil composition

2021 ◽  
Vol 265 ◽  
pp. 03007
Author(s):  
Dildora Sh. Berdieva
Keyword(s):  
Heavy Metals ◽  
Soil Contamination ◽  
Agricultural Land ◽  
Negative Impact ◽  
Mineral Fertilizers ◽  
City Center ◽  
Review Section ◽  
Industrial Enterprises ◽  
The City

Sh. Rashidovsky district is one of the territories where the quality of agricultural land has decreased, the main land of the district is located near the city center, industrial enterprises pollute the soil with various pollutants, the natural balance is disturbed and the ecological environment is polluted. During the survey of soil pollution with heavy metals, the concentration of heavy metals in the soil in the layers (0-10, 10-20, 20-30, 30-40, 40-50, 50-60, 60-70 cm) of agricultural land was analyzed. Analysis of soil contamination with heavy metals in the territory shows that a slight increase in the MCL for soils was observed for cuprum, zinc, chromium, nickel, cobalt and arsenic. The increase occurred mainly in the upper layer of 0-30 centimeters. The concentrations of all other heavy metals do not exceed the MCL, which confirms the conclusions drawn in the review section of the study on the low informative value of heavy metals in environmental monitoring. To reduce the negative impact of heavy metals on the light gray lands of the Sh. Rashidov region, it is necessary to apply mineral fertilizers, grow crops that are resistant to pollution.

scholarly journals Urban soil assessment caused by heavy metals contamination in Yogyakarta City, Indonesia

2021 ◽  
Vol 851 (1) ◽  
pp. 012026
Author(s):  
A T Sekarningsih ◽  
W Budianta ◽  
I W Warmada ◽  
H Hinode
Keyword(s):  
Heavy Metals ◽  
Surface Soil ◽  
Pollution Index ◽  
Soil Samples ◽  
City Center ◽  
Urban City ◽  
Heavy Metals Contamination ◽  
The City ◽  
Cu And Zn ◽  
Yogyakarta City

Abstract The effect of urbanization and industrialization in the urban city is soil contamination by heavy metals. This study was conducted to assess Pb, Cu, Zn, and Cd, in the soil of Yogyakarta city and its surrounding, Indonesia. The assessment was done by analyzing 45 surface soil samples in the study area, divided into three-zone. They are divided based on the distance of each zone to the center of the city. The zone III is located in the outermost of the study area, and zone I is inside the city. The results of the study showed that generally, the highest concentration of metals was located in zone I, which is located near or directly situated in a city center. The result indicated that Pb and Cd had the highest pollution index compared to Cu and Zn. The pollition load indeks (PLI) and geoaccumulation indeks (Igeo) calculations in the whole study area showed that the values demonstrated a moderate class in average. Special attention was needed to be given to the zone I, which has a higher PLI and Igeo index to reduce the source of emission for Pb and Cd.

scholarly journals Determination of heavy metals (Pb and Cd) in guava pulps (psidium guajava) obtained in the city of Cartagena

2019 ◽  
Vol 17 (2) ◽  
pp. 137
Author(s):  
Diana Gómez-Marrugo ◽  
Glicerio León-Méndez ◽  
Jorge Puello-Silva ◽  
Miladys Torrenegra-Alarcon ◽  
Deisy León-Méndez ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Psidium Guajava ◽  
The City

 El objetivo de este estudio fue determinar los niveles de acumulación de metales pesados como el cadmio (Cd) y el plomo (Pb) derivados de actividades antropogénicas, como los humos metálicos de la soldadura y el tráfico de vehículos, en la pulpa de guayaba (Psidium guajava) en la ciudad de Cartagena. -Bolívar. Las muestras se dividieron en tres (3) grupos según la proximidad de las fuentes de contaminación. En el grupo 1, menos de 100 m de industrias metalúrgicas, las concentraciones de Cd en el rango de 0.0400 ± 0.33 mg / Kg y 0.0483 ± 0.15 mg / Kg, mientras que los valores de Pb oscilaron entre 0.036 ± 0.22 mg / kg y 0.060 ± 0.01 mg / kg . Para el grupo 2, se tomaron muestras en 3 lugares donde no se identificó claramente ninguna fuente de contaminación, lo que resultó en concentraciones de Cd 0.0215 ± 0.05 mg / Kg y 0.0260 ± 0.10 mg / Kg, mientras que para el Pb solo se encontró en una de las muestras cuyo valor fue 0.035 ± 0.15 mg / Kg. Finalmente, para el grupo 3, se tomaron muestras en 2 ubicaciones ubicadas a menos de 100 m de avenidas de alto tráfico, resultando en valores muy similares para Cd (0.0220 ± 0.13 mg / Kg y 0.0311 ± 0. 22 mg / Kg), mientras que para Pb el los valores fueron muy precisos (0.032 ± 0.35 mg / Kg y 0.029 ± 0.20 mg / Kg). Estas mediciones muestran cómo, en sitios cercanos a las actividades humanas, las concentraciones de estos metales pesados están en niveles más altos, lo que representa un peligro para su consumo debido a la bioacumulación en diferentes tejidos humanos.Palabras clave: metales pesados, humo metálico, contaminación, tráfico vehicular.

scholarly journals ANALISIS BAURAN PEMASARAN DI HOTEL PANGERAN BEACH PADANG

2018 ◽  
Vol 10 (1) ◽  
pp. 29
Author(s):  
Nurmala Widyastuti
Keyword(s):  
Sampling Technique ◽  
Marketing Mix ◽  
Upper Class ◽  
City Center ◽  
High Quality ◽  
Purposive Sampling ◽  
Travel Agents ◽  
The City ◽  
Hotel Marketing

Abstract. Based on this study to analyze the marketing mix at the Pangeran Beach Hotel Padang. This type of research is a qualitative descripptive. Determination of informants using purposive sampling technique that is many as eight research informants consisting of hotel marketing and hotel consumers. The results obtained from this study are as follows : 1) The products offered by the Pangeran Beach Hotel Padang are quality attractive and of high quality and the service provide to guests are good, 2) The Price set by the Pangeran Beach Hotel Padang is quite high and is only affordable for middle and upper class people, 3) Promotions carried out by the Pangeran Beach Hotel Padang have been maximized so that guests are still intererted in staying at the hotel, 4) The Place or location of the Pangeran Beach Hotel Padang is already strategic annd in the city center, and works together to travel agents so that guests know the location of the Pangeran Beach Hotel Padang. Keywords : Marketing, Marketing mix

Unaccounted Environmental Risk of Fuel Filling Stations in the City

2020 ◽  
Vol 24 (11) ◽  
pp. 24-29
Author(s):  
G.I. Sarapulova
Keyword(s):  
Heavy Metals ◽  
Risk Assessment ◽  
Environmental Risk ◽  
Soil Profile ◽  
Urban Soils ◽  
Petroleum Products ◽  
Oil Products ◽  
Geochemical Barrier ◽  
Filling Station ◽  
The City

The statistically significant geochemical dependences of the dynamic behavior of petroleum products in urban soils in the fuel filling station zone are considered, the areal of their distribution are determined. The techniques used make it possible not only to identify laterally manmade modules of environmental hazard (laterally module) when oil products come from fuel filling stations, but also to determine additional factors of unaccounted environmental risk, for example, the process of accumulation of heavy metals in the soil profile in excess of the standards on the resulting geochemical barrier in the form of oil products. The risk assessment of oil product supply facilities should be carried out taking into account the specifics of the distribution of toxicants in technogenically altered soils.

scholarly journals Monitoring of technogenic soil pollution in manufacture

2021 ◽  
Author(s):  
B.E. Gubasheva ◽  
M.A. Khassenova ◽  
E.K. Akkereyeva
Keyword(s):  
Heavy Metals ◽  
Soil Cover ◽  
Humus Content ◽  
Gas Processing ◽  
Mobile Forms ◽  
West Kazakhstan ◽  
A Chain ◽  
Ph Level ◽  
The City

The growth of production zones in the city of Aksai in the West Kazakhstan region leads to contamination of the soil cover, which, in turn, causes a chain reaction of pollution. Due to soil contamination, soil moisture and the underground surface are polluted. As a result, the processes in the soil change, the vital activity of plants, animals and microorganisms are disrupted. The article presents data on the study of changes in soil cover under the influence of human activity. The results of the conducted studies on the determination of the humus content and pH level, the content of heavy metals in technogenically disturbed soils in the adjacent territory of the natural gas processing enterprise are presented. The obtained data on the gross content and mobile forms of heavy metals indicates that the maximum permissible concentration level for these pollutants is not exceeded.

scholarly journals Consideration of snowpack stratification in the analysis of spatial distribution of pollutants accumulated in snow (Yuzhno-Sakhalinsk)

2020 ◽  
Author(s):  
М.В. Михалев ◽  
В.А. Лобкина
Keyword(s):  
Heavy Metals ◽  
Spatial Distribution ◽  
Dust Pollution ◽  
The City

Приведены результаты исследований снежного покрова Южно-Сахалинска, проведенных в зимние сезоны 2018/19 и 2019/20 гг. для оценки пылевого загрязнения территории города, а также выявления пространственного распределения ионов Cl-, , Са2+, Na+ и тяжелых металлов Pb и Zn. Особенностью исследования является определение влияния стратификации снежного покрова на величины депонированных в нем загрязнителей. The paper presents the results of a snowpack research on the territory of Yuzhno-Sakhalinsk, carried out in winter seasons of 2018–2019 and 2019–2020 to determine the amount of dust pollution accumulated in the snow of the city, as well as determine the spatial distribution of Cl-, , Са2+, Na+ and heavy metals Pb and Zn. A peculiarity of the research is the determination of the effect of snowpack stratification on the amounts of contaminants deposited in that snowpack.

scholarly journals Determination of the Level of Snow Cover Pollution with Heavy Metals within the City of Kovrov Boundaries

2014 ◽  
pp. 69-76
Author(s):  
Keyword(s):  
Heavy Metals ◽  
Snow Cover ◽  
Chemical Elements ◽  
Iron Accumulation ◽  
Winter Period ◽  
Vladimir Oblast ◽  
The City

The paper presents the outcomes of the investigation of heavy metals and iron accumulation in the Kovrov (Vladimir Oblast) snow cover. On the basis of snowmelt waters’ analysis a calculation of the chemical elements input into snow cover over the winter period has been carried out.

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