scholarly journals Біоіндикаційна оцінка впливу місць видалення відходів на стан навколишнього природного середовища

2018 ◽  
pp. 88-92
Author(s):  
П. В. Писаренко ◽  
М. С. Самойлік ◽  
А. В. Молчанова
Keyword(s):  
Heavy Metals ◽  
Triticum Aestivum ◽  
Toxic Effect ◽  
Contaminated Soil ◽  
Household Waste ◽  
Long Run ◽  
The Impact ◽  
The Given ◽  
The City

У статті проведено оцінку впливу звалища твердих побутових відходів (на прикладі звалища відходів міста Полтави) на біоту через визначення фітотоксичного впливу забрудненого ґрунту на схожість, ріст та кореневу систему рослин Triticum aestivum. Встановлено, що рівні пригніченості ростових процесів у даному ґрунті є вище за середні, що вказує на високий вміст важких металів у даному ґрунті та їх токсичний вплив на біоту у місці розташування звалища. Обґрунтовано, що використання пребіотика «Sviteco-PBG» дає змогу значно покращити якість ґрунту, і вже після 14 днів токсичний вплив на біоту в середньому зменшився на 10 %. Отже, використання пребіотиків дає змогу значно підвищити ефективність очистки ґрунту від важких металів, що в перспективі надає можливість повернути забруднені землі у господарський обіг. The article assesses the impact of landfill of solid household waste (for example, landfill of waste from the city of Poltava) on biota due to the determination of the phytotoxic influence of contaminated soil on the growth, growth and root system of plants Triticum aestivum. It has been established that the level of depression of growth processes in this soil is higher than average, which indicates the high content of heavy metals in the given soil and their toxic effect on the biota at the location of the landfill. It was substantiated that using «Sviteco-PBG» prebiotic can significantly improve the soil quality, and after 14 days the toxic effect on biota has decreased by 10 % on average. Thus, the use of prebiotics can significantly improve the efficiency of soil cleaning from heavy metals, which in the long run provides an opportunity to return the contaminated land to economic circulation.

Determination of phytotoxicity of wastes of mechanical processing of polymer mixtures with their mechanical activation

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
O. Malyshevska ◽  
Keyword(s):  
Heavy Metals ◽  
Household Waste ◽  
Mechanical Processing ◽  
Polymer Mixtures ◽  
Phytotoxic Effect ◽  
Contamination Levels ◽  
Complex Relationships ◽  
Living Organisms ◽  
The Impact

Biotesting to assess the complex relationships between soil, contaminants and living organisms and to determine the impact on ecosystems of pollutants whose concentrations may be beyond the sensitivity of the methods of determination and the composition of which cannot be determined. The aim is to establish the level of phytoxicity of wastes of mechanical processing of polymer mixtures, which are extracted from solid household waste with the help of indicator plants. Methods. Evaluation of phytotoxic effects was performed by vegetation methods according to ISO: 17402-2008, 17126-2005a, 11269-1: 2012a, 11269-2: 2012b. Contamination levels of the test samples were assessed according to ISO 16198.Objects of research: watercress seeds, mustard, wheat, corn, soybeans, barley and sludge from the processing of polymer mixtures composed of polymer particles of different composition and quantity, along with the remnants of paper labels. Studies of the content of heavy metals (Pb, Cu, Cd, Zn, Ni) were performed by atomic absorption method on a spectrophotometer type CAS-120.1 in accordance with generally accepted methods. Results. The studied sludge does not negatively affect the process of germination of watercress, mustard, corn. The level of phytotoxic effect of sludge on the germination of soybeans and barley was within acceptable limits and did not exceed 3.33%. The study of migration of heavy metals present in the sludge and their accumulation during the growth and development of plants showed their insignificant content regardless of the sludge content. Only the lead content was higher than in the control 2.13 times and 1.83 times higher than in "relatively clean soil". Conclusions. Determination of phytotoxicity of this type of sludge on the process of germination and vegetation changes of plants should be carried out on the most sensitive crops - watercress and mustard. A study of the migration of heavy metals present in the sludge and their accumulation during plant growth showed the presence of bound forms of heavy metals copper, nickel, cadmium and zinc - the migration of which has not been established. However, mobile forms of lead that migrate from the sludge and accumulate in plants have been identified.

The impact of urban effluents on the coastal marine environment of Mediterranean islands

1995 ◽  
Vol 32 (9-10) ◽  
pp. 85-94 ◽  
Author(s):  
Michael O. Angelidis
Keyword(s):  
Heavy Metals ◽  
Organic Matter ◽  
Marine Environment ◽  
Suspended Particle ◽  
Pollution Source ◽  
Mediterranean Islands ◽  
Coastal Marine Environment ◽  
Coastal Marine ◽  
The Impact ◽  
The City

The impact of the urban effluents of Mytilene (Lesvos island, Greece) on the receiving coastal marine environment, was evaluated by studying the quality of the city effluents (BOD5, COD, SS, heavy metals) and the marine sediments (grain size, organic matter, heavy metals). It was found that the urban effluents of Mytilene contain high organic matter and suspended particle load because of septage discharge into the sewerage network. Furthermore, although the city does not host important industrial activity, its effluents contain appreciable metal load, which is mainly associated with the particulate phase. The city effluents are discharged into the coastal marine environment and their colloidal and particulate matter after flocculation settles to the bottom, where is incorporated into the sediments. Over the years, the accumulation of organic matter and metals into the harbour mud has created a non-point pollution source in the relatively non-polluted coastal marine environment of the island. Copper and Zn were the metals which presented the higher enrichment in the sediments of the inner harbour of Mytilene.

scholarly journals The Determination of Chemical Forms of Heavy Metals in Shooting Area Contaminated Soil Using Sequential Extraction Method

2015 ◽  
Vol 20 (6) ◽  
pp. 111-116 ◽  
Author(s):  
Gyeonghye Moon ◽  
Hongki Park ◽  
Kyoungkeun Yoo ◽  
Jha Manis Kumar ◽  
Alorro Richad Diaz ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Sequential Extraction ◽  
Contaminated Soil ◽  
Extraction Method ◽  
Chemical Forms ◽  
Sequential Extraction Method

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 ABORDAGEM SOBRE O DESCARTE INADEQUADO DE LÂMPADAS FLUORESCENTES, PILHAS E BATERIAS NO ENSINO DE CIÊNCIAS

2018 ◽  
Vol 3 (2) ◽  
pp. 492-505
Author(s):  
Carlos Henrique Damasceno ◽  
Leandro Carbo ◽  
Roberta Lima Moretti ◽  
Gabriel Antonio Ogaya Joerke
Keyword(s):  
Heavy Metals ◽  
Elementary School ◽  
Public Schools ◽  
Data Collection ◽  
Qualitative Approach ◽  
Household Waste ◽  
Previous Knowledge ◽  
Fluorescent Lamps ◽  
The City

Resumo: O objetivo do presente trabalho foi aplicar e avaliar uma proposta didática sobre pilhas, baterias e lâmpadas fluorescentes, no ensino de Ciências, direcionada a estudantes do Ensino Fundamental de duas escolas públicas da cidade de Jaciara-MT. A pesquisa se baseia em uma abordagem qualitativa, tendo como instrumentos de coletas de dados: questionário, observação e diário de campo. Para o planejamento das atividades propostas, os estudantes foram investigados sobre as temáticas, por meio de questionários, de forma a verificar os conhecimentos prévios a respeito dos riscos ocasionados pelo descarte inadequado, destes materiais. Para evidenciar os riscos do descarte inadequado, foram utilizadas duas aulas expositivas/dialogadas e um desafio para o recolhimento dos materiais, que apresentou grande diferença, entre as escolas. Observou-se, por meio das respostas, que a maioria dos estudantes descartam suas pilhas, baterias e lâmpadas fluorescentes, no lixo doméstico, por não saber dos riscos que estes materiais podem causar à saúde e ao meio ambiente, por possuírem metais pesados que são liberados, no caso das pilhas, quando começam a enferrujar e nas lâmpadas fluorescentes, quando são quebradas.Palavras-chave: Descarte inadequado. Pilhas e baterias. Lâmpadas fluorescentes. Abstract: The objective of the present work was to apply and evaluate a didactic proposal on batteries, batteries and fluorescent lamps, in the teaching of science, directed to students of the elementary School of two public schools of the city of, The research is based on a qualitative approach, having as instruments of data collection, questionnaire, observation and Field Journal. For the planning of the proposed activities, the students were investigated on the subjects, by means of questionnaires, in order to verify the previous knowledge about the risks caused by the inappropriate disposal of these materials. To highlight the risks of inappropriate disposal, two expository/dialogue classes were used and a challenge for the collection of materials, which showed great difference between schools. It was observed, through the replies, that most students discard their batteries, batteries and fluorescent lamps in household waste, because they do not know the risks that these materials can cause to health and the environment, because they have heavy metals that are Released, in the case of batteries, when they start to rust and in fluorescent lamps, when they are broken.Keywords: Improper disposal; Batteries; Fluorescent lamps.

scholarly journals PRICE DETERMINATION OF CHICKEN PORRIDGE MSMEs IN FACING RAW MATERIAL COST FLUCTUATION

2019 ◽  
Vol 3 (1) ◽  
pp. 273
Author(s):  
Faizal Haris Eko Prabowo
Keyword(s):  
Raw Material ◽  
Survey Method ◽  
Selling Price ◽  
Price Determination ◽  
Material Costs ◽  
Economic Census ◽  
Revenue Streams ◽  
The Impact ◽  
The City

The culinary industry is currently one of the best industries that are developing, this has become one of the economic supports in several regions. Based on the results of the economic census report of the Tasikmalaya City in 2016 the culinary industry in percentage and number of positions was in the third position followed by the large trade industry which occupied the first position and the processing industry in the second position. This study aims to determine the impact of changes in raw material costs lucratively on the selling price determination of chicken porridge in MSMEs at the City of Tasikmalaya. The population in this study were all MSMEs chicken porridge entrepreneurs totaling 261 units, while the method used in this study was a survey method with a quantitative approach presented descriptively. The result of this study is that changes in raw material costs have an impact of 89.2% on the determination of the selling price of chicken porridge. In fact, this is clearly illustrated by the chicken porridge activists who prefer to set the selling price using a mixed method based on market costs and demand. This is because there is a concern from chicken porridge activists for the risks that they will get such as decreasing sales and automatically reducing their revenue streams.

Impact of Heavy Metals on Benthic Oligochaete Communities in the River Ill and Its Tributaries

1994 ◽  
Vol 29 (3) ◽  
pp. 241-248 ◽  
Author(s):  
A. Rosso ◽  
M. Lafont ◽  
A. Exinger
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Organic Matter ◽  
Reproductive Strategy ◽  
Organic Micropollutants ◽  
Rhine Basin ◽  
Metal Contents ◽  
The Impact ◽  
The City

The aim of this research is to describe the impact of heavy metals contaminating sediments on oligochaete communities. Sediments were collected three times (June, August, October 1991) for chemical and biological analyses in 15 sites situated in the river I11 and its tributaries (Rhine Basin, France). The sediments are characterized by high contents of heavy metals, mainly Hg, Cu, Cr, Pb, Zn from below the city of Mulhouse. The majority of sediments are heavily loaded with organic matter and organic micropollutants are also present. Oligochaete communities are rich in species. However five species only, considered as pollution-tolerant or opportunist, are significantly present and abundant. The percentages of Tubificidae without hair setae are positively related to heavy metal contents of the sediments, and the percentages of Tubificidae with hair setae are negatively related. Several species such as N. communis, N. barbata, D. digitata and Bothrioneurum sp. are considered as tolerant to heavy metals; on the contrary L. claparedeanus, L. udekemianus, Stylodrilus sp. and S. josinae are considered as intolerant. The reproductive strategy of oligochaetes in contaminated areas and the role of organic matter are discussed. Several recommendations are given for the rehabilitation of the investigated sites.

scholarly journals Dampak Kabut Asap terhadap Kinerja Usaha Pedagang Pasar di Kota Rengat Kabupaten Indragiri Hulu Provinsi Riau

2020 ◽  
Vol 5 (1) ◽  
pp. 167
Author(s):  
Ivalaina Astarina ◽  
Syahmardi Yacob ◽  
Febblina Daryanes ◽  
Khusnul Fikri ◽  
Ahmad Ramadhan
Keyword(s):  
Weather Conditions ◽  
Measurement Scales ◽  
Descriptive Research ◽  
Learning Tasks ◽  
Analysis Technique ◽  
Sample Count ◽  
Education Of Students ◽  
The Impact ◽  
The City

The purpose of the research in IIS to know and analyze the impact of the haze on the performance of business traders market. This research belongs to the type of descriptive research. Descriptive research that aims to describe, describe and analyse existing events and aims to obtain information about the impact of haze in accordance with existing theories. Data collection method through dissemination of questionnaires and questions answered. The population in this study is the market merchant of Rengat City. Determination of sample count of 100 respondents/market trader. The data analysis technique used to analyze this research data is to be descriptively used statistical analysis in the form of a percentage formula because its purpose is to see the trend of the indicators of each variable and the research is only aimed to describe the reality in the field is not to be seen relations or comparisons. In this study, researchers used Likert measurement scales. The Likert scale relates to a statement about a person's attitude toward something.  The results of this study can be concluded that: (1) The health of the market traders of the city of Rengat is interrupted because of the thick haze that affects the trading activity itself. (2) The income of market traders in the city of Rengat is decreasing due to declining people's desire to shop in the market due to the worry of being exposed to haze which can cause ISPA disease and other health disorders. (3) The market environment of the Rengat is affected by the smoke of the daily Trader's life. Usually traders have already held their trades starting from the beginning of the morning, because the haze of most traders often come late to the market (overdo). (3) The education of students from the family of market traders in the city of Rengat is also affected by the haze so that it must be dissolved until normal weather conditions are back. Because of this, students have a lot of missed material and have to force themselves to pursue the lag by adding hours and learning tasks that are much beyond the student's thinking capacity.

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 The criterion of the presumption of biophysiological temperature and the cooling guide for the determination of human comfort in the City of Rutba

2018 ◽  
Vol 227 (2) ◽  
pp. 307-316
Author(s):  
Lect. Intisar Sukkar Khioun
Keyword(s):  
Relative Humidity ◽  
Solar Radiation ◽  
Climatic Data ◽  
Human Comfort ◽  
Air Movement ◽  
The Impact ◽  
The Relationship ◽  
The City ◽  
Climate Studies

     The relationship between man and climate is of great importance in climate studies, as climate is the most natural climatic element in the sense of comfort or distress of man, and humans can live comfortably if the degree of heat between (17-31 m) and the human feeling of heat and cold and then rest or discomfort not only caused by the air temperature but depends on many elements including solar radiation, air movement, relative humidity, the level of human activity and the type of clothing worn, and the presumption has used Biophysiological temperature and Cooling guide in this study to demonstrate the impact of climate on human comfort in the city of Rutba and relying on the climatic data for thirty years.

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