scholarly journals Parasitic contamination of soil in astrakhan region. analysis of work in 2010–2019

2021 ◽  
Vol 38 (2) ◽  
pp. 126-132
Author(s):  
Viktoria A. Irdeeva ◽  
Svetlana A. Shemetova ◽  
Rudolf S. Arakelyuan ◽  
Gennadyi L. Shendo ◽  
Nina V. Polyanskaya
Keyword(s):  
Research Work ◽  
Soil Samples ◽  
Soil Sampling ◽  
Parasitic Infestation ◽  
Intestinal Protozoa ◽  
Region Analysis ◽  
Environmental Objects ◽  
Sewer Network ◽  
Eggs And Larvae

Objective. We studied the contamination of the soil with helminth-protozoan infestations in Astrakhan region for 20102019. Materials and methods. The research work was carried out in the Laboratory of Bacteriological and Parasitological Research of the Center for Hygiene and Epidemiology in the Astrakhan Region in 20102019. A total of 10 692 soil samples were examined, and 11 384 studies were performed. The number of samples, which did not meet the sanitary and parasitological indicators was 7.0 % (753 samples). Eggs and larvae of helminths, as well as cysts of pathogenic intestinal protozoa were found in these samples. Results. During the analyzed period, 86 491 samples of sanitary and parasitological studies were selected and examined in the Astrakhan region, of which 93.6 % (80 962 samples) were samples taken from various environmental objects (water, soil, manure, flushes from solid household surfaces). The total share of soil samples in the structure of all studies of environmental objects was 13.2 % (10 692 samples). Conclusions. Parasitic contamination of the soil remains tense, as evidenced by positive findings in the form of eggs and larvae of helminths, as well as cysts of pathogenic intestinal protozoa. The presence of toxocara eggs and strongylid larvae in the soil indicates contamination of this object with the feces of infected animals. The presence of eggs of ascarids, opisthorchis, pygmy tapeworm and cysts of dysentery amoeba in the soil may indicate that this object is contaminated with the feces of persons with parasitic infestation, or about accidents on the sewer network and underflooding of soil sampling sites.

scholarly journals SANITARY AND PARASITOLOGICAL CONDITION OF THE SOIL OF ASTRAKHAN REGION FOR PERIOD OF 2014–2020 YEARS

2020 ◽  
Vol 75 (3) ◽  
pp. 145-150
Author(s):  
V.A. Irdeeva ◽  
◽  
R.S. Arakelyan ◽  
M.V. Bogdanyants ◽  
E.A. Stepanenko ◽  
...  
Keyword(s):  
Soil Samples ◽  
Laboratory Research ◽  
Intestinal Protozoa ◽  
Infected People ◽  
Sewer Network

The authors analyzed the sanitary and parasitological state of the soil of the Astrakhan region for 2014 – 6 months of 2020, using the materials of their own laboratory research and research of the center for hygiene and epidemiology in the Astrakhan region. In total, during the analyzed period, 8 144 soil samples were studied, and 16 288 studies were performed. The total number of samples that did not meet the sanitary and parasitological indicators was 6,7 %. Thus, in 2014, 16,7 % of soil samples (n = 1368) were examined for sanitar-parasitological indicators, of which 5,0 % of samples did not meet the standards. In 2015, soil studies were also conducted – 12,2 %, of which 6,4 % were unsatisfactory. Thus, in 2016, 15,1 % of soil samples were examined, of which 9,3 % were unsatisfactory. In 2017, 13,4 % of soil samples were examined, of which 7,4 % were unsatisfactory. In 2018, studies of soil samples for parasitic indicators amounted to 16,8 %, of which 7,4 % were unsatisfactory. In 2019 17,5 % of soil samples were examined – the largest number of samples studied compared to previous years. 6,5 % of the samples did not meet the standard indicators. For 6 months of 2020, 8,3 % of soil samples were examined, of which 4,2 % did not meet the sanitary and parasitological indicators. Thus, the sanitaryparasitological state of the soil in recent years continues to be relatively unfavorable, as evidenced by positive findings in the form of larvae and eggs of helminths, as well as in the form of cysts of pathogenic intestinal protozoa. The presence of Strongylid larvae and Toxocar eggs in the soil indicates contamination of this object with the feces of invasive animals (cats and/or dogs). And the presence of unfertilized Ascaris and blastocysts eggs indicates contamination of this object with the feces of infected people, or there was an accident and a break in the sewer network at this object.

Sanitary parasitological and sanitary–bacteriological condition of the soil in the astrakhan region

2021 ◽  
Vol 23 (3) ◽  
pp. 35-40
Author(s):  
Rudolf S. Arakelian ◽  
Svetlana A. Shemetova ◽  
Olga A. Vanyukova ◽  
Gennadiy L. Shendo ◽  
Nina V. Polyanskaya ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Pathogenic Bacteria ◽  
Strongyloides Stercoralis ◽  
Toxocara Canis ◽  
Soil Samples ◽  
Coliform Bacteria ◽  
Infected People ◽  
Environmental Objects ◽  
Sanitary Condition ◽  
Eggs And Larvae

This article analyzes the sanitaryparasitological and sanitarybacteriological state of the soil of the Astrakhan region for 2015 to 2019. In total, 7587 soil samples taken from various environmental objects were studied, and 18.197 studies have been performed. Of the samples, 333 (4.4%) samples did not meet the hygiene standards. For parasitic purity, 4566 (60.2%) soil samples were examined, and 9132 (50.2%) studies have been performed. The largest number of soil samples were collected and examined in 2015 and 2016, which amounted to 943 (20.7%) in 2015 and 1046 (22.9%) in 2016. The number of samples that do not meet hygienic standards was 62 (6.6%) in 2015 and 91 (8.7%) in 2016. In 2015, the positive findings were helminthiasis caused by unfertilized eggs of Ascaris lumbricoides (4 [0.5%]), eggs of Toxocara canis (37 [3.9%]), and larvae of Strongyloides stercoralis (21 [2.2%]). For microbiological indicators, the largest number of soil samples were collected and examined in 2019 and amounted to 694 (23.0%), of which positive findings in the form of common coliform bacteria of Escherichia coli amounted to six (0.9%). Studies for bacteriological indicators in 2016 have used 662 (21.9%) samples, which is 0.9 times less than the samples taken in 2019. The sanitary condition of the soil of the Astrakhan region remains stably tense, as evidenced by positive findings in the form of eggs and larvae of helminths, as well as pathogenic bacteria of Escherichia coli. The presence of ascarid eggs, toxocars, and strongylid larvae in the soil indicates contamination of these objects with the feces of infected people and animals. The presence of coliform bacteria of Escherichia coli in the soil also indicates contamination with the feces of sick people.

scholarly journals CONTAMINATION OF SOIL IN RURAL AREAS OF THE ASTRAKHAN REGION EGGS AND LARVAE OF HELMINTHS

2020 ◽  
Vol 76 (4) ◽  
pp. 117-123
Author(s):  
V.A. Irdeeva ◽  
◽  
R.S. Arakelyan ◽  
Kh.M. Galimzyanov ◽  
M.V. Bogdanyunc ◽  
...  
Keyword(s):  
Rural Areas ◽  
Strongyloides Stercoralis ◽  
Toxocara Canis ◽  
Soil Samples ◽  
Intestinal Protozoa ◽  
Infected People ◽  
Eggs And Larvae

The parasitic contamination of the soil of rural areas of the Astrakhan region for the presence of eggs and larvae of helminths and cysts of pathogenic intestinal protozoa was studied. The highest number of unsatisfactory soil samples was observed in the Limansky district of the Astrakhan region – 12.2 %, when dead larvae of Strongyloides stercoralis and unfertilized eggs of Askaris lumbricoides were found. The presence of Toxocara canis eggs and dead Strongyloides stercoralis larvae in the soil indicates contamination of this object with the feces of invasive animals. The presence of unfertilized eggs of Askaris lumbricoides in soil samples taken from playgrounds in rural areas of the Astrakhan region indicates that these objects are contaminated with the feces of infected people. Contamination of soil in rural areas of the Astrakhan region eggs and larvae of helminths, in the Krasnoyarsk area above 4.1 times higher than in lymans'ke and 6.7 times compared to Kamyzyaksky

scholarly journals CONTAMINATION OF SOIL OF A NUMBER OF TERRITORIES OF THE SOUTH OF RUSSIA WITH PARASITIC AGENTS

2021 ◽  
pp. 530-536
Author(s):  
Khutoryanina ◽  
Dimidova ◽  
Dumbadze ◽  
Tverdokhlebova
Keyword(s):  
Specific Weight ◽  
Soil Samples ◽  
Main Role ◽  
Potential Hazard ◽  
The South ◽  
Intestinal Protozoa ◽  
Helminth Eggs ◽  
Rostov Region ◽  
The Republic ◽  
Eggs And Larvae

Parasitic contamination of the soil of some territories of the south of Russia was studied for the presence of eggs and larvae of helminths and cysts of pathogenic intestinal protozoa. The soil is still a potential hazard as a risk factor in the infection of the population with geohelminths. Thus, in the Rostov region, the specific weight of the selected soil samples for the period from 2016 to 2020 was 28.2%, of which 25.5% were positive. In the Republic of Adygea, the specific weight of the selected soil samples for the same period was 59.5%, positive – 30.6%. In the KarachayCherkess Republic – 53.8%, positive – 61.9%. The results of the conducted sanitary and parasitological studies of the soil showed that the share of positive samples in various regions of the south of Russia ranged from 20.5% in the Rostov region to 83.3% in the territory of the Karachay-Cherkess Republic. Among all identified helminth eggs, for Toxocara spp. eggs. In all the studied territories, it was 2–3, and sometimes 5 times higher than the eggs of other helminth species detected in the soil. A fairly large number of Strongyloides spp. larvae were also found, mainly in the Republic of Karachay-Cherkessia. According to this, the main role in soil contamination in the south of Russia belongs to animals.

Sanitary and parasitological state of water bodies of the Astrakhan region for 2011–2020

2021 ◽  
pp. 14-24
Author(s):  
Svetlana Aleksandrovna Shemetova ◽  
Tatyana Vasilievna Nikeshina ◽  
Nina Vitalievna Polyanskaya ◽  
Gennadiy Leonidovich Shendo ◽  
Rudolf Sergeevich Arakelyan ◽  
...  
Keyword(s):  
Water Samples ◽  
Water Bodies ◽  
Swimming Pools ◽  
Laboratory Studies ◽  
Intestinal Protozoa ◽  
Infected People ◽  
Environmental Objects ◽  
State Of Water ◽  
Data Objects ◽  
Eggs And Larvae

The article presents the material on the sanitary-parasitological state of water bodies of the Astrakhan region for 2011–2020. In total, during the analyzed period, laboratory studies were conducted on 77,017 samples taken from environmental objects (soil, water, flushes from solid household surfaces). The share of water samples in the structure of general sanitary and parasitological studies of the environment was 7.6 % (5858 samples), including unsatisfactory samples was 3.0 % (175 samples). The structure of positive findings in water samples was represented by 6 nosological forms of helminthiasis — 88.0 % (154 samples) and 3 nosoforms of protozoa — 12.0 %. Water samples were taken from various sources in Astrakhan and the Astrakhan region and examined for the presence of eggs and larvae of helminths, cysts of pathogenic intestinal protozoa and oocysts of cryptosporidia: water from open reservoirs, centralized water supply, swimming pools, waste water, water from wells and bottled water. As a result of the conducted studies, the results were obtained, indicating that the parasitic contamination of water bodies of the Astrakhan region remains very intense, as evidenced by positive findings in the form of eggs and larvae of helminths and cysts of pathogenic intestinal protozoa; the presence in the studied water samples of eggs and larvae of helminths and pathogenic protozoa cysts, evidence of the contamination of these objects feces of infected people (eggs broad tapeworm, Ascaris, opisthorchis, pinworms, Giardia cysts, amoebas and blastocyst) and animals (egg opistorchis, Toxocara, larvae strongylid); the presence of positive findings in the sewage samples indicates poor disinfestation data objects; the presence of parasitic agents in water samples taken from open reservoirs indicates that they are contaminated with the feces of infected animals and people, or that the object is contaminated with sewage and / or sewage.

Sanitary and parasitological state of environmental objects Astrakhan Region for 2010–2019

2021 ◽  
pp. 16-27
Author(s):  
Viktoria Aleksandrovna Irdeeva ◽  
Rudolf Sergeevich Arakelyan ◽  
Gennadiy Leonidovich Shendo ◽  
Nina Vitalievna Polyanskaya ◽  
Tatyana Vasilievna Nikeshina ◽  
...  
Keyword(s):  
Soil Water ◽  
Water Samples ◽  
Strongyloides Stercoralis ◽  
Soil Samples ◽  
Environmental Objects ◽  
Eggs And Larvae

The article presents material on the sanitary and parasitological state of environmental objects of the Astrakhan region for 2010–2019 on the example of studying samples of soil, water, manure and flushes from solid household surfaces. A total of 80962 samples were collected and examined during the analyzed period. The number of samples that did not meet the standard indicators was 1.2 % (951 samples). The total share of soil samples in the structure of all studies of environmental objects was 13.2 % (10,692 samples). In addition to the soil, manure samples from farms were studied. In total, 0.04 % (33 samples) of manure were examined during the analyzed period, of which 24.2 % (8 samples) were positive findings in the form of Strongyloides stercoralis larvae. These manure samples were collected only in 2010. The share of water samples was 7.5 % (6033 samples). Also conducted research on samples of swabs taken from household hard surfaces. A total of 64,204 washout samples (79.3 %) were selected and examined, of which 0.02 % (12 samples) were positive. The result of this work were the results: sanitary-parasitological status of water and soil Astrakhan region remain strained, as evidenced by positive findings in the form of eggs and larvae of helminths and cysts of intestinal pathogenic protozoa.

scholarly journals Contamination of environmental objects by helminth-protozoan infestations in Astrakhan region. Аnalysis of activities of “Сenter for hygiene and epidemiology in Astrakhan region” for 2011–2020

2021 ◽  
Vol 38 (5) ◽  
pp. 123-136
Author(s):  
Svetlana A. Shemetova ◽  
Rudolf S. Arakelyuan ◽  
Tatyana V. Nikeshina ◽  
Gennadyi L. Shendo ◽  
Altin K. Mukasheva ◽  
...  
Keyword(s):  
Soil Water ◽  
Water Samples ◽  
Poor Quality ◽  
Soil Samples ◽  
Laboratory Studies ◽  
Intestinal Protozoa ◽  
Environmental Objects ◽  
Helminth Eggs ◽  
Wastewater Samples ◽  
Soil And Water

Objective. To study and analyze the contamination of environmental objects in the Astrakhan Region (by the example of soil, water, and washout samples from solid household surfaces) based on the results of laboratory studies of the Center for Hygiene and Epidemiology in the Astrakhan Region for 20112020. Materials and methods. The work was carried out on the basis of the Laboratory of Bacteriological and Parasitological Research of the Center for Hygiene and Epidemiology in the Astrakhan Region and in the laboratories of the Branches of the Center for Hygiene and Epidemiology in the Astrakhan Region in 20112020. As a whole, during the analyzed period, the laboratory and its branches conducted laboratory studies of 79 742 samples taken from various environmental objects, and 94 495 studies were performed. The number of samples that do not meet the hygiene standards was 1.01 % (806 samples). Results. The objects of sampling for the study of their parasitic purity were water, soil and wash-out from solid household surfaces. The share of water samples in the structure of all the studied samples taken from environmental objects was 7.3 % (5858 samples), of which 172 samples were contaminated with pathogens of parasitic diseases, the extent of invasion was 2.9 %. The structure of positive findings in the water samples was represented by 6 nosological forms of helminths 88.0 % (154 samples) and 3 nosoforms of protozoa 12.0 %. The share of the studied soil samples in the overall structure of sanitary and parasitological studies of the environment was 11.2 % (8895 samples). The number of unsatisfactory samples in the structure of all positive findings revealed during the study of soil, water and washouts during the analyzed period was 70.4 % (625 samples). The total soil contamination for the period of 20112020 was 7.0 % (625 samples). In most cases, helminth eggs and larvae were detected 99.8 % (624 samples). The proportion of pathogenic protozoan cysts detected in the soil was 0.2 % (1 sample). In addition to water and soil samples, the washout samples, taken from solid household surfaces were studied 81.5 % (64989 samples), of which 0.01 % (9 samples) were unsatisfactory. All positive findings in the washout samples were represented by two nosological forms of helminthiasis: Enterobius vermicularis eggs 0.012 % (8 samples) and teniid oncospheres 0.002 (1 sample). Conclusions. The presence of helminth eggs and cysts of pathogenic intestinal protozoa in the studied soil and water samples indicates contamination of these objects with the feces of infected persons and/or contamination by sewage runoff resulting from various accidents. The presence of toxocara eggs and strongylid larvae in the soil and water indicates contamination of these objects with the feces of infected animals (dogs, cats). The presence of positive findings in wastewater samples indicates poor-quality disinfection of these objects. The presence of contact helminth eggs in the studied samples of washout samples taken from hard surfaces indicates direct contact of infected persons with these samples.

THE EFFECT OF SOD TYPE ON THE OCCURRENCE OF GROUND BEETLES (COLEOPTERA: CARABIDAE) IN A PEST MANAGEMENT APPLE ORCHARD

1984 ◽  
Vol 116 (2) ◽  
pp. 165-171 ◽  
Author(s):  
N. J. Holliday ◽  
E. A. C. Hagley
Keyword(s):  
Pest Management ◽  
Pitfall Trap ◽  
Common Species ◽  
Ground Beetles ◽  
Apple Orchard ◽  
Soil Samples ◽  
Soil Sampling ◽  
Pitfall Trapping ◽  
Before And After ◽  
Trap Catches

AbstractThe effects on carabids of natural, fescue, and rye sod types and of tillage were investigated in a pest management apple orchard. Carabids were sampled before and after the treatments by pitfall trapping and by two types of soil sampling. There were no significant effects of sod type on pitfall trap catches; however the abundance of all common species in soil samples was significantly affected by sod types. Usually in soil samples carabids were most abundant in natural sod and least abundant in tilled plots; numbers were intermediate in fescue and rye. Sod type did not affect structure or diversity of the carabid fauna.

scholarly journals Leaching of Picloram in ultisol under different rainfall volumes

2011 ◽  
Vol 29 (spe) ◽  
pp. 1129-1136 ◽  
Author(s):  
E.C Assis ◽  
A.A Silva ◽  
L D'Antonino ◽  
M.E.L.R Queiroz ◽  
L.C Barbosa
Keyword(s):  
Liquid Chromatography ◽  
High Performance ◽  
Soil Samples ◽  
Soil Sampling ◽  
Horizontal Position ◽  
Leaching Potential ◽  
Excess Water ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Plot Design

The present study aimed to evaluate the leaching potential of Picloram in Ultisol columns under different rainfall amounts. For such, 30 treatments were evaluated (one soil associated with three levels of rainfall and ten depths).The experiments were arranged in a split-plot design, in a completely randomized design, with four replications. PVC columns of 10 cm in diameter and 50 cm in length were filled with these soils, moistened, and placed upright for 48 hours to drain the excess water. The herbicide was applied and rainfall simulations were carried out at specified intensities, according to the treatments, to force Picloram leaching. After 72 hours, all the columns were arranged in a horizontal position and opened lengthwise. Then, soil sampling was carried out every 5 cm of depth for subsequent herbicide extraction and quantification and analysis by high performance liquid chromatography. The remaining soil samples were placed in plastic pots, and, at the respective depths, the indicator species Cucumis sativus was sown. Twenty-one days after the emergence (DAE) of the indicator plants, evaluations were conducted to verify the symptoms of toxicity caused by Picloram in the plants. It was concluded that Picloram leaching is directly dependent on the volume of rain applied. The herbicide reached the deepest regions in the soil with the highest intensity of rain. The results obtained by bioassay were in agreement with those found by liquid chromatography.

scholarly journals Assessment of the Quality of Soil and Groundwater of the Agricultural Area of Sidi Yahya Region, Morocco

2020 ◽  
Vol 150 ◽  
pp. 01001
Author(s):  
M. Lahmar ◽  
N. El Khodrani ◽  
S. Omrania ◽  
H. Dakak ◽  
R. Moussadek ◽  
...  
Keyword(s):  
Water Table ◽  
Land Management ◽  
Research Work ◽  
Sustainable Use ◽  
Soil Samples ◽  
Agricultural Area ◽  
Soil Parameters ◽  
The Impact ◽  
Soil And Water

The Gharb plain is the largest agricultural area in Morocco. It is characterized by fertile soils and the availability of water either from surface or groundwater which allowed intensive agriculture. The aim of this research work is to study the impact of this land management on the quality of water and soil. The study was done for the irrigated perimeter of Sidi Yahya belonging to the province of Sidi Slimane, Gharb (Morocco). Depth of water table and water pH were measured in situ while water and soil samples were collected and brought to the laboratory for their physico-chemical analyses. Sampling of 33water wells and soil samples, from six different zones, was done between May and October 2018. Analysis of variance (ANOVA) was used to check if mean water and soil parameters differed between zones. The results showed that the minimal and maximal water table depth were 6 and 96 m, respectively. Also, slightly more than half of the wells (51.5%) were inadequate for irrigation since they were either highly or extremely saline. Furthermore, soils were poor to moderately poor in organic matter but very rich in potassium and the phosphorus content was highly variable. Based on the statistical analysis, it is clear that the six zones had significantly different means for CaCO3, pH, OM, and exchangeable sodium percentage. Soil degradation like pollution and salinization may occur in this region if poor quality water is used for irrigation and if land is mismanaged. This research work can be considered as a first step towards a program for monitoring the quality of soil and water for adapting the land management with the final objective of securing high productivity and sustainable use of soil and water resources.

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