scholarly journals ECOLOGICAL RISK ASSESSMENT OF LEAD AND CADMIUM CONTENT IN EGGS FOUND IN ECOTECHNOLOGICAL SYSTEMS

2019 ◽  
Vol 32 (3) ◽  
pp. 337-343
Author(s):  
Veselin Kirov ◽  
Alexander Tchoukanov
Keyword(s):  
Ecological Risk ◽  
Environmental Risk ◽  
Chemical Heterogeneity ◽  
Trophic Chain ◽  
Cadmium Content ◽  
Pathogenic Microorganisms ◽  
Organic Substances ◽  
Lead And Cadmium ◽  
Ecosystem Level ◽  
Technical Systems

Lead and cadmium studies have been conducted in the egg eco-system trophic chain, which is a continuation study on the chemical heterogeneity of the biosphere, assessed at the ecosystem level. For the realization of the ecologilization, a two-module model of an eco-technical system for production of eggs with models of the two main types of trophic chains is proposed: pasture and detritus type.The main product of the linearity of the technological processes in livestock breeding is fertilizer. From the point of view of efficient management of eco-technical systems to minimize environmental risk, the ecological assessment of the fertilizer for the purpose of its utilization is appropriate. It belongs to the Odum Classification Conglomerates I (1975), which includes organic substances that are potentials of nutrients and energy, and should be utilized as resources for recipients in agro-ecological or aquatic ecosystems. The fertilizer is materially different from other products under this group due to the large number of pathogenic microorganisms. Organic substances in the fertilizer are a risk factor due to the emission of greenhouse gases and toxic substances to the atmosphere and pathogenic microorganisms are biological pollutants with high risk potential due to the risk of it causing human and animal diseases.Our research has focused on the quality of products used for human food and the particularities of the movement of matter in eco-technical systems (Baykov, 1994, Baykov & Tyrawska, 1991, Baykov et al., 1996, Baykov et al. 2003). The experiments were carried out in models of eco-technical systems for eggs on the scale of "mesocosmos" via classification of Odum (1986) by analyzing the physicochemical indicators of the two elements of the incoming stream: feedstock and drinking water and an assessment of the chemical heterogeneity at the ecosystem level was performed by analyzing and hygienically assessing the physical characteristics of products used for human food.Proposed, are criteria for assessing the ecological risk of chemical heterogeneity at ecosystem level: eco-technical Clark (Ec), Clark of safety (Cs), Clark of concentrating (Cc) and Clark of technology (Ct). The results show the possibility of assessing environmental risk through the Cs criterion applied to mass of the egg/ feedstock /and for the processed manure. The ecological risk is managed through the Cs and Ct criteria by regulating the amount of toxic factors in the input stream to guarantee safe for human health secondary biological production.

scholarly journals Influence of zeolites on lead and cadmium content in separate links of trophic chain in hydroecosystems

2016 ◽  
Vol 18 (2) ◽  
Author(s):  
N. I. Hradovych ◽  
R. P. Paranyak ◽  
Yu. M. Zabytivskyi
Keyword(s):  
Silver Carp ◽  
Research Station ◽  
Water Medium ◽  
Muscular Tissue ◽  
Trophic Chain ◽  
Cadmium Content ◽  
Hypophthalmichthys Molitrix ◽  
Cadmium Ions ◽  
Lead And Cadmium ◽  
Water Ecosystems

Information about the influence of zeolite used as adsorbent to reduce the concentration of Lead and Cadmium in separate links of trophic chain of hydroecosystem namelyn in water, phytoplankton and muscular tissue of Silver carp is given in the article. As a sorbent we used zeolite of Sokirnitsa deposit (village Sokirnitsa, Khust district Transcarpathian region) of fraction 1.0 – 4.0 mm. Investigations were made at the Lviv research station of Institute of fisheries NAAS (Lviv oblast, Horodok region, Velykyi Lyubin). The sorption properties of natural Transcarpathian clinoptilolite towards Lead and Cadmium at dynamic conditions have been studied. The paper represents research results aimed at estimating effectiveness of removing of Lead and Cadmium ions from hydroecosystems using natural mineral–zeolite. The dynamics of heavy metals content at phytoplankton and muscular tissue of silver carp (Hypophthalmichthys molitrix Valenciennes, 1844) was studied. Measurements were perfomed in pond № 24 (12) area 0.14 hectares which is fed by waters of the river Vereshchytsia. The pond depth is 1 – 1.5 meters.  Results of investigations worked out statistically combining the groups. Considerable lowering of ions content of both metals in water was determined. The lowering of cadmium content in muscular tissue of Silver carp was much noticeable than the content of Lead. Results of such investigations are rather actual and perspective and will help to reduce the content of some toxicants in water medium. Improvement of water ecosystems after use of natural sorbents will guarantee ecologically safe products of fish culture and will increase the efficiency of the branch.

Method for Assessing the Ecological Risk to the Population in Areas Outside the Planning Zones of Emergency Protection Measures Around the NPP

2020 ◽  
Vol 17 (5) ◽  
pp. 34-47
Author(s):  
V. M. Polyakov ◽  
Z. S. Agalarov
Keyword(s):  
Ecological Risk ◽  
Environmental Risk ◽  
Risk Taking ◽  
Late Stage ◽  
Simulation Modeling ◽  
Radiation Accident ◽  
Emergency Protection ◽  
Protection Measures ◽  
Vector Criterion

The article offers a method for assessing the environmental risk in the territories adjacent to the planning zone of emergency protection measures around the NPP. The method is based on simulation modeling of territory pollution, which is formed at the late stage of a radiation accident and zoning of territories by risk, taking into account the characteristics of the population’s life in a potentially dangerous territory. A vector criterion of environmental risk is proposed that allows zoning these territories according to the degree of danger to the population.

Determination of Lead and Cadmium Content in the Rice Consumed in Maracaibo, Venezuela

1997 ◽  
Vol 59 (1) ◽  
pp. 94-98 ◽  
Author(s):  
I. Buscema ◽  
A. Prieto ◽  
L. Araujo ◽  
G. Gonzalez
Keyword(s):  
Cadmium Content ◽  
Lead And Cadmium

A Direct Method for Quantification of Lead and Cadmium Content in Biological Fluids of the Human Reproductive System

2012 ◽  
Vol 45 (18) ◽  
pp. 2823-2834 ◽  
Author(s):  
Fátima R. Moreira ◽  
Fernanda P. Baptista ◽  
Regina A. Gomes ◽  
Ana Cristina A. Mancebo ◽  
Maria do Carmo B. Souza
Keyword(s):  
Reproductive System ◽  
Direct Method ◽  
Biological Fluids ◽  
Cadmium Content ◽  
Lead And Cadmium ◽  
Human Reproductive ◽  
A Direct Method

Distribution Characteristics and Risk Assessment of Soil Lead at a Children’s Blood Lead Exceeding Area in Fujian

2015 ◽  
Vol 768 ◽  
pp. 175-182 ◽  
Author(s):  
Rui Rui Sun ◽  
Hua Qing Chen ◽  
Du Kang Li ◽  
Dong Dong Yang
Keyword(s):  
Risk Assessment ◽  
Surface Layer ◽  
Ecological Risk ◽  
Environmental Risk ◽  
Blood Lead ◽  
Parent Material ◽  
Soil Samples ◽  
Risk Level ◽  
Material Layer ◽  
Contamination Degree

Taking Pingzhai Village in Sanming City of Fujian Provice as the researching area, the village has already outbroken Children’s blood lead exceeding and cause a lot of damage to local children. In order to reveal the reason for this serious consequence and assess the environmental risk of Pb, 24 soil samples including 12 from parent material layer and 12 from the corresponding surface layer and 4 groundwater samples are collected. The Tessier sequential extraction method is applied to analyze different speciation of Pb in soil, and Risk Assessment Code (RAC) and Ratio of Secondary Phase and Primary Phase (RSP) are both applied to evaluate Pb contamination degree and ecological risks. The results show that: the concentration of Pb in soil samples exceeds the soil Pb background values of Fujian Province, and the overall concentration of Pb shows a rising trend from the surface to parent material layer, then their accumulated pollution index range from 5.4 to 54.9 in surface layer and 4.7 to 68.1 in parent material layer. Coefficients of variation of Pb in surface and parent material layer are 79% and 86%, respectively. The lead in soil can be divided into 3 chemical speciation containing T1 (exchangeable speciation and carbonate bounded form), T2 (potential ecological risk form) and T3 (residual speciation) and Pb in soil mainly exists in T2 and T3. There shows a significant positive correlation between T2 or T3 and the total amount of Pb in soil. Pb concentration in groundwater has exceeded limited value of Standards for Drinking Water Quality. RAC and RSP ecological risk assessment results indicate that: environmental risk level of RSP is higher than it of RAC, and the contamination degree and potential environmental risk level of parent material soil are higher than them of surface soil applied by the two assessment methods.

Lead and cadmium content in the meat tissues of fish from water ecosystems in the vicinity of a pesticide tomb

2008 ◽  
Vol 37 (3) ◽  
Author(s):  
Krystyna Skibniewska ◽  
Janusz Guziur ◽  
Zbigniew Marzec ◽  
Stanisław Zaręba ◽  
Mirosław Grzybowski ◽  
...  
Keyword(s):  
Cadmium Content ◽  
Fish Ponds ◽  
Lead And Cadmium ◽  
Northeastern Poland ◽  
Water Ecosystems

Lead and cadmium content in the meat tissues of fish from water ecosystems in the vicinity of a pesticide tombLead and cadmium levels were determined in the meat tissues of roach, bream, and carp netted in a lake and in fish ponds threatened by a pesticide tomb and in control basins in northeastern Poland. Concentrations in roach ranged from 20 to 124 μg kg

scholarly journals A PRELIMINARY STUDY OF LEAD AND CADMIUM CONTENT IN WATER AND TILAPIA (Oreochromis niloticus, Linn.) FOR WATER QUALITY ASSESSMENT OF TELAGA TUNJUNG DAM , BALI

2018 ◽  
Vol 5 (1) ◽  
pp. 85
Author(s):  
Made Octiya Arimardewi ◽  
I Wayan Restu ◽  
Suprabadevi Ayumayasari Saraswati
Keyword(s):  
Water Quality ◽  
Quality Assessment ◽  
Oreochromis Niloticus ◽  
Water Quality Assessment ◽  
Atomic Emission ◽  
Cadmium Content ◽  
Plasma Atomic Emission ◽  
Lead And Cadmium ◽  
Preliminary Study ◽  
Atomic Emission Spectrometer

Bendungan Telaga Tunjung terletak di Desa Timpag, Kecamatan Kerambitan, Kabupaten Tabanan, Provinsi Bali. Dalam perkembangannya, wilayah sekitar bendungan dimanfaatkan untuk kegiatan pertanian, industri serta pemukiman yang memungkinkan terdapatnya masukan bahan pencemar seperti logam berat. Berdasarkan hal tersebut, perlu dilakukan penelitian mengenai kualitas perairan ditinjau dari kandungan logam berat, mengingat fungsi bendungan yang dimanfaatkan untuk masyarakat. Penelitian ini bertujuan untuk mengidentifikasi konsentrasi kandungan logam berat Timbal (Pb) dan Kadmium (Cd) pada kolom air dan ikan nila (Oreochromis niloticus, Linn.) di Bendungan Telaga Tunjung, yang dilakukan pada bulan Februari 2016. Metode yang digunakan adalah metode purposive sampling, dengan teknik pengambilan sampel air dilakukan secara komposit pada 5 stasiun berdasarkan perwakilan perairan bendungan. Pengambilan sampel air dilakukan sebanyak 3 kali setiap 2 minggu, dan pengambilan sampel ikan dilakukan secara acak sebanyak 1 ekor setiap 2 minggu. Kandungan logam berat dianalisis menggunakan alat Plasma Atomic Emission Spectrometer ICPE-9000. Kosentrasi logam berat Timbal (Pb) di badan air yang diperoleh berkisar 0 – 0,009 mg/l, dan Kadmium (Cd) berkisar 0,135 – 0,310 mg/l. Pada ikan nila, konsentrasi timbal tidak dapat terdeteksi, dan konsentrasi kadmium yang di dapat berkisar 0,330 – 0,728 mg/kg. Hasil tersebut menunjukkan bahwa perairan di Bendungan Telaga Tunjung telah tercemar oleh logam berat Kadmium (Cd), karena telah melebihi ambang baku yang ditetapkan Peraturan Gubernur Bali Nomor 8 Tahun 2007 tentang Baku Mutu Lingkungan Hidup dan Kriteria Baku Kerusakan Lingkungan Hidup Kelas II yaitu sebesar 0,03 mg/l, dan melebihi ambang baku yang ditetapkan SNI (Standar Nasional Indonesia) 7387:2009 sebesar 0,1 mg/kg untuk ikan dan hasil olahannya.

Variations in plant and soil lead and cadmium content in urban parks in Athens, Greece

1997 ◽  
Vol 196 (1) ◽  
pp. 91-98 ◽  
Author(s):  
J. Chronopoulos ◽  
C. Haidouti ◽  
A. Chronopoulou-Sereli ◽  
I. Massas
Keyword(s):  
Urban Parks ◽  
Cadmium Content ◽  
Soil Lead ◽  
Lead And Cadmium

scholarly journals Concentrations of toxic elements in tissues of slaughtered animals and cow’s milk - a five year study

2013 ◽  
Vol 57 (4) ◽  
pp. 529-533 ◽  
Author(s):  
Józef Szkoda ◽  
Jan Żmudzki ◽  
Agnieszka Nawrocka ◽  
Mirosława Kmiecik
Keyword(s):  
Toxic Elements ◽  
Absorption Spectrometry ◽  
Raw Milk ◽  
Animal Origin ◽  
Cadmium Content ◽  
Lead And Cadmium ◽  
Legal Limits ◽  
Food Of Animal Origin ◽  
Order Of Magnitude ◽  
Arsenic Determination

Abstract The aim of the study was to evaluate the contamination of animal muscle, liver, and milk with lead, cadmium, mercury, and arsenic. Determination of the elements was carried out using several techniques of atomic absorption spectrometry. Between 2008 and 2012, samples of muscles and liver from 1305 cattle, 2345 pigs, 758 horses (only muscles), 1721 poultry (chickens, turkeys, geese, ducks), and 736 samples of raw milk were collected. Only 48 (0.7%) samples exceeded the maximum acceptable levels of the elements, especially lead and cadmium. In the case of lead, the highest number of samples exceeding the legal limits was found in muscles of pigs (6), where the maximum value reached 0.376 mg/kg. For cadmium, the highest number of samples (22) with values exceeding legal limits was found in muscles of horses. The cadmium content in muscles of horses, at both the mean (0.052 mg/kg) and median (0.023 mg/kg), was in order of magnitude higher than that observed in cattle and pigs. Small percentage of samples with values exceeding the maximum levels of toxic elements in food of animal origin indicates a low risk for the consumers’ health.

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