scholarly journals AN OVERVIEW OF ARSENIC POLLUTION OVER FOUR NORTH-EAST COUNTRIES OF EUROPE INFLUENCED BY NATURAL AND ANTHROPOGENIC SOURCES

2020 ◽  
Author(s):  
Howlader Rahidul Hassan ◽  
Gytautas Ignatavičius ◽  
Vaidotas Valskys
Keyword(s):  
Anthropogenic Sources ◽  
Northern Sweden ◽  
Arsenic Pollution ◽  
East European ◽  
North East ◽  
Water Courses ◽  
Toxic Metalloid ◽  
Anthropogenic Processes ◽  
And Control ◽  
Soil Sediments

Arsenic (As) is one of the most important elements found in the environment. It is a toxic metalloid that is res-ponsible for the contamination of soil/sediments and water courses due to various natural and anthropogenic processes. This may lead to adverse effects on human health, therefore it is important to monitor and control. The objective of this paper is to summarize the literature on arsenic anomalies in soil/sediments and water of four North-East European countries; the measurements are reported for Finland, Sweden, Lithuania and Poland. The origin of most of the arsenic pollution is determined to be natural and mostly anthropogenic for these co-untries. The data reveal that As is present in matrices such as soil, sediments and water. This review highlights that the As concentration in drinking water or soil/sediments of the four countries exceeds the international standard limits. As at higher concentrations are associated with the mining region of Adak in the Västerbotten district of northern Sweden (e.g. groundwater upto 2900 μg/L; sediments upto 900 mg/kg).

scholarly journals Anthonomus rubi on Strawberry Fruit: Its Biology, Ecology, Damage, and Control from an IPM Perspective

Insects ◽  
2021 ◽  
Vol 12 (8) ◽  
pp. 701
Author(s):  
Lorenzo Tonina ◽  
Giulia Zanettin ◽  
Paolo Miorelli ◽  
Simone Puppato ◽  
Andrew G. S. Cuthbertson ◽  
...  
Keyword(s):  
Feeding Activity ◽  
Host Feeding ◽  
Mass Trapping ◽  
Natural Habitats ◽  
Potential Control ◽  
North East ◽  
Monitoring Tools ◽  
Anthonomus Rubi ◽  
And Control

The strawberry blossom weevil (SBW), Anthonomus rubi, is a well-documented pest of strawberry. Recently, in strawberry fields of Trento Province (north-east Italy), new noteworthy damage on fruit linked to SBW adults was observed, combined with a prolonged adult activity until the autumn. In this new scenario, we re-investigated SBW biology, ecology, monitoring tools, and potential control methods to develop Integrated Pest Management (IPM) strategies. Several trials were conducted on strawberry in the laboratory, field and semi-natural habitats. The feeding activity of adult SBW results in small deep holes on berries at different stages, causing yield losses of up to 60%. We observed a prolonged survival of newly emerged adults (>240 days) along with their ability to sever flower buds without laying eggs inside them in the same year (one generation per year). SBW adults were present in the strawberry field year-round, with movement between crop and no crop habitats, underlying a potential role of other host/feeding plants to support its populations. Yellow sticky traps combined with synthetic attractants proved promising for both adult monitoring and mass trapping. Regarding control, adhesive tapes and mass trapping using green bucket pheromone traps gave unsatisfactory results, while the high temperatures provided by the black fabric, the periodic removal of severed buds or adults and Chlorpyrifos-methyl application constrained population build-up. The findings are important for the development of an IPM strategy.

scholarly journals Trace element contamination in the mine-affected stream sediments of Oued Rarai in north-western Tunisia: a river basin scale assessment

2021 ◽  
Author(s):  
Jamel Ayari ◽  
Maurizio Barbieri ◽  
Yannick Agnan ◽  
Ahmed Sellami ◽  
Ahmed Braham ◽  
...  
Keyword(s):  
Trace Elements ◽  
Ecological Risk ◽  
Risk Index ◽  
Potential Ecological Risk ◽  
Stream Sediments ◽  
Anthropogenic Sources ◽  
Contamination Level ◽  
North East ◽  
Basin Scale ◽  
North Western

AbstractHigh-quality and accurate environmental investigations are essential for the evaluation of contamination and subsequent decision-making processes. A combination of environmental geochemical indices, multivariate analyses and geographic information system approach was successfully used to assess contamination status and source apportionment of trace elements (Ag, As, Cd, Cr, Cu, Hg, Ni, Pb, Sb, V and Zn) in surface stream sediments from the Oued Rarai basin in north-western Tunisia, containing various metal and metalloid ores. The contamination level reported in this study indicates a non-negligible potential ecological risk, mainly related to sediment transport along the river. Antimony (concentrations ranged from 0.02 to 297 mg kg−1 and Igeo > 5), arsenic (from 0.5 to 1490 mg kg−1 and Igeo > 5), lead (from 2.9 to 5150 mg kg−1 and Igeo > 5) mercury (from 0.05 to 54.4 mg kg−1 and Igeo > 5) and silver (from 0.05 to 9.4 mg kg−1 and Igeo > 5) showed the most crucial contamination. Besides, potential ecological risk index values were maximum for arsenic with a median of 302, indicating a very high to serious ecological risk (> 160). Results from correlation analysis and principal component analysis revealed three main geochemical associations related to lithologic, tectonic and anthropogenic sources. V, Cr and Cu mainly originated from natural bedrock and soil. Ag and Cd were more controlled by both natural and mining enrichments. Mercury and Pb were mostly influenced by the ancient ore-related activities at the Oued Rarai site and north-east–south-west trending faults. Finally, Sb, As, Ni and Zn were largely controlled by the siliciclastic continental Neogene sequences. Finally, the physical and chemical dynamics of the watershed system, lithological properties, mineralisation, tectonic settings and mobilisation of subsurface sediments largely controlled both concentrations and spatial patterns of trace elements in the study basin. These results need to be considered in the strategies of suitable environmental management at former and current mining sites in north-western Tunisia.

Testate amoeba as palaeohydrological indicators in the permafrost peatlands of north-east European Russia and Finnish Lapland

2017 ◽  
Vol 32 (7) ◽  
pp. 976-988 ◽  
Author(s):  
Hui Zhang ◽  
Matthew J. Amesbury ◽  
Tiina Ronkainen ◽  
Dan J. Charman ◽  
Angela V. Gallego-Sala ◽  
...  
Keyword(s):  
European Russia ◽  
Testate Amoeba ◽  
East European ◽  
North East ◽  
Finnish Lapland

Studies of HLA, Factor B (Bf), Complement C2 and C4 Haplotypes in Type 1 Diabetic and Control Families from Northern Sweden

1986 ◽  
Vol 36 (4) ◽  
pp. 201-212 ◽  
Author(s):  
B. Hägglöf ◽  
G. Holmgren ◽  
G. Holmlund ◽  
B. Lindblom ◽  
B. Olaisen ◽  
...  
Keyword(s):  
Northern Sweden ◽  
Factor B ◽  
And Control

scholarly journals Assessments and Control of Anthropogenic Noise Pollution in Students’ Residential Areas in Ogbomoso

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
A. O. Ajayeoba
Keyword(s):  
Medical History ◽  
Undergraduate Students ◽  
Circuit Breaker ◽  
Noise Pollution ◽  
Sound Level ◽  
Anthropogenic Sources ◽  
Anthropogenic Noise ◽  
Residential Areas ◽  
Sound System ◽  
And Control

Increased rate of noise-associated risk factors such as speech interference and reduction in productivity, necessitated that control and regulation measures be put in place, to contain anthropogenic noise pollution in the students’ hostels. Therefore, this study assessed the various anthropogenic sources of noise pollution in students’ hostels and developed a Sound Level Monitor and Control (SLMC) device. 1250 undergraduate students across 5 students’ residential zones were sampled for demographics and investigations were conducted into respondents’ perceived medical history, identification of noise sources, and evaluation of hearing loss. Effects of noise levels were evaluated using 100 respondents’ rooms per zone following standard procedures, considering Sound-System-Only (SSO), Generators-Only (GO), and combination of Sound-System-and-Generator (SSG), loud-conversations, etc., as sources of noise. However, a noise control device incorporated with a circuit breaker was developed. The respondents were 51.2% male and 48.8% female, with 58% in the age range 18 – 27 years. The medical history showed that 1.2 and 6.4% had a hearing problem in short and long times, respectively, while 43.6% affirmed that SSO was a major noise pollution causal factor. SSO, GO, loud conversations, traffic, and grinding machines were identified as the prominent sources of anthropogenic induced noise. The minimum average SL result gave a value of 62.8400dB for both ventilated and unventilated rooms, which is 14% above 55dB threshold value recommended by the National Environmental Standards and Regulations Enforcement Agency. The developed SLMC device gave notification at the SL above 55dB for 15 seconds before disconnecting the sound system if not regulated.

scholarly journals Microbiological surveillance of operation theatre in a tertiary care hospital in North East India

2017 ◽  
Vol 5 (8) ◽  
pp. 3448
Author(s):  
Monika Yadav ◽  
Rohan Pal ◽  
Somorjit H. Sharma ◽  
Sulochana D. Khumanthem
Keyword(s):  
Tertiary Care ◽  
Infection Prevention And Control ◽  
Care Hospital ◽  
Bacterial Colony ◽  
Operation Theatre ◽  
Pseudomonas Spp ◽  
North East ◽  
Acinetobacter Spp ◽  
And Control ◽  
Microbiological Surveillance

Background: Good hospital hygiene is an integral part of infection control programme. “Microbiological surveillance” provides data about the factors contributing to infection. Bacterial counts in operation theatres are influenced by number of individual present, ventilation and air flow methods. Purpose of the study is to find out prevalence rate of microorganisms in Operation Theatre, to find out the frequency of contamination from various sites in operation theatre.Methods: The study was conducted in the department of microbiology, Regional institute of medical sciences, Imphal, Manipur, India. Air samples were taken by settle plate method in petri dishes containing blood agar and surface samples were taken by a sterile swab soaked in nutrient broth from all operation theatres. The samples were processed according to standard operative procedures.Results: Least bacterial colony forming unit (CFU) was shown by ophthalmology OT 17 CFU/mm3 and highest was shown by emergency OT 200 CFU/mm3. Isolated organism was divided into normal flora (CONS, micrococci), contaminant (bacillus species) and pathogenic organism e.g. Staphylococcus aureus, Acinetobacter spp., Pseudomonas spp. 15 (23.4%) swab samples out of a total of 64 swab samples were found to be growth positive. Out of that 4 CONS, 4 micrococci, 3 Bacillus spp, 2 Acinetobacter spp, 1 Enterobacter spp, 1 Pseudomonas spp. were isolated.Conclusions: Strengthening surveillance and laboratory capacity will surely enhance infection prevention and control. Routine sampling is strongly recommended for increasing awareness to identify and control all possible sources and types of infections.

Lustration and Truth Claims: Unfinished Revolutions in Central Europe

1995 ◽  
Vol 20 (01) ◽  
pp. 117-161 ◽  
Author(s):  
Maria Łoś
Keyword(s):  
Transition To Democracy ◽  
Right Wing ◽  
Left Wing ◽  
Power Structures ◽  
East European ◽  
The Past ◽  
Institutional Issues ◽  
Truth Claims ◽  
The Right ◽  
And Control

This article focuses on discourses conducted in Central/East European countries, and Poland in particular, with respect to the issue of participation of former secret agents in the new power structures. It exposes the reader to the range, style, content, and variety of lustration discourses. It explores their relevance for the ongoing power struggle, paying special attention to their focus on and contribution to the processes of construction and control of truth about the past. Given that the procedural and legal-institutional issues occupy a marginal place in the debate, it is inferred that the main sources of discord are more ideological and political than legal. The two main strains within the global lustration discourse are identified as: (1) dystopian discourses that paint a frightful picture of a lustrated society and imply that the upheaval of lustration would ruin the chance for democratic evolution, and (2) affirmative discourses that assert the need for lustration and portray the refusal to implement it as a barrier to successful transition to democracy. The article elaborates on assumptions and beliefs, which tend to link the dystopian opposition to lustration with the left-wing political affiliation or self-identification and the affirmative discourse with the right-wing orientation.

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