Long-term persistence of sedimentary copper contamination in Lake Orta: potential environmental risks 20 years after liming

<p>Lake Orta, northern Italy, has suffered from severe copper pollution and human-induced acidification between the 1920s and the 1990s because of discharges from a rayon factory and electroplating industries located in its water basin. Following liming operations in the late 1990s, the chemical quality of the water column has been restored and signs of, still ongoing, biological recovery observed. Examination of two sediment cores collected close to the main historical Cu discharge and in the central part of the Lake shows that Cu concentrations in the uppermost layers of bottom sediments remain 10 to 40-fold higher than background levels. Past studies demonstrated the toxic potential of Lake Orta sediments to a variety of organisms at Cu concentrations comparable to present ones. Comparison with published results suggests that current level of Cu contamination may still pose a risk to sediment-ingesting organisms and slow down further ecological recovery of Lake Orta. Particular attention should be given to understand the effects of dietary ingestion of Cu from sediments which, unlike in previous ecotoxicological studies, may now represent the main route of Cu exposure for sediment-ingesting benthic organisms.</p>

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Considerations of the technological quality assessment of sugarbeet

Sugar Industry ◽

10.36961/si11041 ◽

2011 ◽

pp. 85-89 ◽

Cited By ~ 1

Author(s):

Giorgio Pezzi

Keyword(s):

Quality Parameters ◽

Northern Italy ◽

Glucose Content ◽

Long Term Storage ◽

Interesting Correlation ◽

Technological Quality ◽

Thick Juice

No real improvement in the technological quality of beet has been recorded over the last 15 years in Northern Italy. Among the possible explanations for the quality stagnation is that the traditional formulae cannot correctly differentiate between sugarbeet varieties which produce thick juice of very high purity. This seems to be connected with the role of potassium. The use of a standard purification procedure gives reliable and accurate data which is immediately comparable with the factory data. Research projects on medium/long term storage are currently being performed by Co.Pro.B., Italy, in cooperation with Syngenta and Beta. Up to now the results have shown that storage of sugarbeet in autumn time in northern Italy is possible provided that suitable varieties and proper handling of the roots are employed. Results obtained in the storage trials are reported. Correlations have been found between quality parameters (purity, color and lime salts) of the purified juice with the glucose content of the raw juice. An interesting correlation is reported between purified juice purity and raw juice purity.

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Long-term changes in the water quality of a deep temperate oligotrophic lake in response to catchment disturbance: evidence from sediment cores

New Zealand Journal of Marine and Freshwater Research ◽

10.1080/00288330.2019.1577279 ◽

2019 ◽

Vol 53 (4) ◽

pp. 571-587 ◽

Cited By ~ 1

Author(s):

Alfred Theodore N. K. Kpodonu ◽

David P. Hamilton ◽

Christopher H. Lusk ◽

Adam Hartland ◽

Daniel C. Laughlin ◽

...

Keyword(s):

Water Quality ◽

Sediment Cores ◽

Oligotrophic Lake ◽

Catchment Disturbance ◽

Long Term Changes

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BIOMONITORING OF ATHMOSPHERE AIR POLLUTION IN THE FOREST ECOSYSTEMS AND ECO-TONE ZONE

AGROFOR ◽

10.7251/agreng1702065b ◽

2018 ◽

Vol 2 (2) ◽

Author(s):

Adam BEGU

Keyword(s):

Air Pollution ◽

Forest Ecosystems ◽

Current Level ◽

Annual Average ◽

Republic Of Moldova ◽

Clean Air ◽

The Republic ◽

Harmful Effects

Within our research, the air quality of 62 forest ecosystems from Republic ofMoldova was assessed, taking into consideration the lichens indicator speciesspecific diversity, abundance and toxitolerance. It was established that theMoldavian forest ecosystems do not contain reserves concerning critical loads forSO2 pollution, the annual average for the vegetation season for dendrologicalspecies being 0,02 mg/m3 air, and for communities of lichens and cyanobacteria,organisms sensitive to pollution, represented only 0,01 mg/m3. Lichen indicationdemonstrated that the current level of pollution is between 0,05 and 0,5 mg/m3 SO2air, thus long-term harmful effects are manifested in all 62 studied forestecosystems and the ecosystems from the eco-tone zone. We believe that for theRepublic of Moldova lichen, indicator species can provide a scale of 6 levels: 5levels characterized by species with different toxitolerance degree and the last stepbeing an area in which lichens are completely missing, thus the most polluted area.Within the Republic of Moldova territory, there were reported 3 forest ecosystemsin which the air is evaluated as clean air, 11- low polluted air, 31- moderatepolluted air, 12- polluted air, 3- high polluted air and those with critical polluted airwas missing.

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Chemical quality of sediment cores from the Laguna Madre, Laguna Atascosa and Arroyo Colorado, Texas

Fact Sheet ◽

10.3133/fs13999 ◽

1999 ◽

Author(s):

Peter C. Van Metre

Keyword(s):

Sediment Cores ◽

Chemical Quality ◽

Laguna Madre ◽

Arroyo Colorado

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Thinking Beyond Language: Intervention for Severe Aphasia

Perspectives on Neurophysiology and Neurogenic Speech and Language Disorders ◽

10.1044/nnsld19.1.15 ◽

2009 ◽

Vol 19 (1) ◽

pp. 15-22 ◽

Cited By ~ 3

Author(s):

Nina Simmons-Mackie

Keyword(s):

Quality Of Life ◽

Communication Training ◽

Language Intervention ◽

Specific Training ◽

Environmental Support ◽

Total Communication ◽

Communication Partners

Abstract Purpose: This article addresses several intervention approaches that aim to improve life for individuals with severe aphasia. Because severe aphasia significantly compromises language, often for the long term, recommended approaches focus on additional domains that affect quality of life. Treatments are discussed that involve increasing participation in personally relevant life situations, enhancing environmental support for communication and participation, and improving communicative confidence. Methods: Interventions that have been suggested in the aphasia literature as particularly appropriate for people with severe aphasia include training in total communication, training of communication partners, and activity specific training. Conclusion: Several intervention approaches can be implemented to enhance life with severe aphasia.

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Communication Disordered: Program Implementation in Long-Term Care

Perspectives of the ASHA Special Interest Groups ◽

10.1044/persp1.sig15.64 ◽

2016 ◽

Vol 1 (15) ◽

pp. 64-67

Author(s):

George Barnes ◽

Joseph Salemi

Keyword(s):

Program Implementation ◽

Long Term Care ◽

Family Satisfaction ◽

Regulatory Compliance ◽

Care Staff ◽

Term Care ◽

Staff Members ◽

Change Policy

The organizational structure of long-term care (LTC) facilities often removes the rehab department from the interdisciplinary work culture, inhibiting the speech-language pathologist's (SLP's) communication with the facility administration and limiting the SLP's influence when implementing clinical programs. The SLP then is unable to change policy or monitor the actions of the care staff. When the SLP asks staff members to follow protocols not yet accepted by facility policy, staff may be unable to respond due to confusing or conflicting protocol. The SLP needs to involve members of the facility administration in the policy-making process in order to create successful clinical programs. The SLP must overcome communication barriers by understanding the needs of the administration to explain how staff compliance with clinical goals improves quality of care, regulatory compliance, and patient-family satisfaction, and has the potential to enhance revenue for the facility. By taking this approach, the SLP has a greater opportunity to increase safety, independence, and quality of life for patients who otherwise may not receive access to the appropriate services.

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