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Assessment was performed of the air quality related risk to the conservation of cultural heritage objects in one urban and one rural indoor location in Romania
with expected different air quality related conservation challenges: the National military museum in Bucharest and the Tismana monastery in Gorj County
The work was performed within and subsequent to the EU-Memori project by applying Memori methodology
Memori®-EWO (Early warning organic) dosimeters and passive pollution badge samplers for acetic and formic acids
The measurements in the National military museum were performed in three rooms with different exposure situations
and inside protective enclosures in the rooms
The rooms had organic and inorganic objects on exhibition and in store
The observed risks were associated with photo-oxidizing impact probably due to traffic pollutants entering from outdoor
generally comparable to typical European purpose built museum locations
The highest risk was observed in a more open exhibition room in the main museum building
It was indicated that some observable change might happen to sensitive pigments and paper within 3 years
copper and sensitive glass within 30 years in this location
Risk for observable change to sensitive pigments
The lowest risk was observed in a warehouse
A reduction in photo-oxidizing risk was measured in two of the enclosures
but a slightly higher acidic impact was measured in all the three enclosures
a high level of acetic plus formic acid was observed in the air in the storerooms for icons and textiles
Damage risk within 3 years was indicated for lead objects and sensitive glass
and within 30 years for iron and varnish (Laropal A81
As organic acid attack increases significantly at higher air humidity (> ~ 60%)
this would be especially important to avoid
Risk for photo-oxidizing damage to paper and sensitive pigments within 30 years was indicated
The Tismana monastery is located in a forested part of the countryside with generally much less traffic pollutants than in Bucharest
A possible damage risk and preservation challenge for objects stored indoor in relatively closed rooms in the monastery
partly constructed with and containing organic materials
may be due to off-gassing of acidic components
Air pollution measurements were implemented in this work to evaluate these possible risks
A Memori assessment takes into account the most common photo-oxidizing and acidic damage risks to cultural heritage materials observed indoor due to exposure to gaseous air pollutants
It is a well-suited method for general assessment of the main common damage risks related to gaseous air pollution
Diagnosis is performed by the separation between photo-oxidizing impact (which is usually due to outdoor sources) and the acidic impact (which is usually due to indoor sources)
This allows determination of the probable reason(s) for observed air quality related damage risk
which could be implemented to protect vulnerable objects against the exposure
To perform the air quality risk assessment
related to the preventive conservation of the objects in the National military museum and the Tismana monastery
air quality measurements were carried out over a 3 months period
The measurements were performed in locations with significant objects on exhibit or in store
and which were expected to offer different degrees of protection against external and internally emitted air pollutants
The measurement locations in the National Military Museum
1b in a melamine fibreboard storage wardrobe in the warehouse
2b in a wooden historic storage chest in the probative objects storage room
3a in a contemporary history room in the main museum building
and 3b in a display showcase in the contemporary history room
No photo was available of the samplers at location 2a in the probative objects storage room
Photos of the exact measurement locations in the icons and textiles
The translucent dosimeter materials react with the atmosphere and become more opaque due to exposure in the heritage locations
which correlated the values for the influencing environmental parameters and the dosimeter responses
based on statistical treatment of a large database of measurements
the concentrations in air of NO2 and O3 (“traffic pollutants”)
and the uv (ultraviolet)-light exposure were found to influence the EWO response at rates depending on the temperature
whereas the concentration in air of acetic acid was found to influence to GSD response
a The Memori-EWO (PPO) synthetic polymer dosimeter in an aluminium holder. Four dosimeters can optionally be mounted in the holder for simultaneous parallel measurements. b A passive pollution IVL (Swedish environmental institute) type badge sampler, as was used to measure acetic and formic acids. In Fig. 1
the dosimeters and samplers are seen placed at the measurement locations
If the presence of dust is high or the dosimeter is exposed in horizontal position
dust can however accumulate on the dosimeter and affect the response
In an indoor situation with a temperature (T) significantly different from 20 °C or RH significantly different from 50%
the dosimeter will respond to these factors and measure a higher risk value
and/or the object sensitivity may be different from that applied for the Memori traffic light evaluation (see below)
The materials damage risk assessment was not calibrated towards these impacts
the occurrence and influence of such variations in environmental factors (T
The values for the air quality measured in the locations in the National military museum and Tismana monastery are given in Table 1
The measurement results for the locations in the National military museum and the Tismana monastery presented in the three remaining of seven (out of 22) Memori material risk evaluation diagrams, where some risk (red or yellow) were indicated (see the Fig. 4 caption)
For the location outside of the rooms in the Tismana monastery the EWO dosimeter measurement was not performed
The air quality risks in the National military museum were found to be moderate
more comparable to a historic house museum
was observed in the more open contemporary history exhibition room in the main museum building
The best situation was observed in a wardrobe in the warehouse for foreign uniforms
but a slightly higher level of acetic plus formic acidic was measured in all the three enclosures
copper and sensitive glass within 30 years
in the contemporary history exhibition room and showcase
Risk for observable change within 30 years
sensitive pigments and paper in the other locations in the National military museum
or directly with concentration values of acetic plus formic acid
rather than by the measured GSD dosimeter values
Dosimetry of generic pollutant effects and parameter measurements are different approaches to risk assessment
The choice of measurement method could influence results
for example in situations with high temperature
Dosimetry has the advantage of simultaneously assessing the combined impact of several environmental factors
whereas parameter measurements provide values for the concentrations in air of single air pollutants
The environmental degradation of complex objects is usually complex
and the sensitivities of the object and its materials are often uncertain
A Memori risk evaluation is therefore a risk indication
specification and diagnosis if risk is identified (i.e
This is due to the larger emitting surfaces as compared to the volumes and usually lower ventilation rates of enclosures as compared to rooms
The small differences between the measured acidic impact in the enclosures and the rooms in the National military museum indicated little risk related to organic acid off gassing in the enclosures
This may be due to relatively low emitting materials and/or ventilation effects in the enclosures
The emission from materials is typically reduced as they age
and the aging of enclosures contribute to lower internal off gassing
It seems that the most likely damages to develop in the National military museum in the short term (a few years) would be fading and colour change of pigments and surfaces
In the longer term (more than a few years)
surface corrosion of metals could be expected
it should be considered that surface corrosion of metal is very humidity dependent and that corrosion damage could appear faster at higher than 50% relative humidity
The museum has many objects with such materials in exhibition and in store
Improved protection from exposure to air from outdoor and the consequent photo-oxidation could potentially extend conservation intervals and reduce conservation costs for such objects
The present use of showcases and enclosures has this protective purpose
which effect was verified by the measurements
some possible mitigation measures to reduce this exposure risk are: the moving of sensitive objects away from locations most influenced by the outdoors such as entrances and windows; avoiding exposure to light from outdoor; using showcases for sensitive objects; keeping sensitive objects in well closed and possibly conditioned store rooms; and avoiding high and fluctuating temperature and humidity conditions
A moderate photo-oxidation risk was indicated for paper and sensitive pigments
Such materials would be present in objects in the icons and textile and the bookstore rooms
For preservation in the long term additional protection of such objects against exposure to light and outdoor air would be beneficial
by similar methods as suggested for the National military museum
for example by using showcase or protective enclosures
the sensitivity of specific cultural heritage materials and objects would be different from that applied in the MEMORI assessment
Objects and surfaces are often complex mixtures of materials that have already been subject to change by environmental exposure
The exposure may have produced damages and additional vulnerability
which supplies an evaluation and ranking of air pollution risks
It can give added information to conservators and assist in efforts to improve the preventive protection of objects in the most efficient way
Air quality measurements and risk evaluation can lead the attention to situations of concern where further investigation of damages and damage processes should be performed
They do not replace the essential understanding of single objects
Air quality measurements and risk assessment for cultural heritage materials were performed in the National military museum and the Tismana monastery in Gorj County in Romania
dosimetry and passive pollution parameter sampling
Some risk was indicated for photo-oxidising damage to some types of sensitive materials in the National military museum in Bucharest
which would need active conservation within 3 years
was found in a contemporary history exhibition room in the main museum building
The photo-oxidising damage risk in the room was evaluated to be similar to a typical European historic house
which would need active conservation within 30 years
a storeroom and inside enclosures used in the museum
comparable to typical European purpose built museum locations
The materials most at risk were found to be sensitive pigments and paper
The risk could be reduced by measures to protect the objects against exposure to outdoor city air ventilated into the building
and against possible excessive light exposure and high and fluctuating temperature and humidity
The present use of protective enclosures has these functions
Significant risk for damage to some types of sensitive materials
was observed in the icons and textile room and book store room in the Tismana monastery
Materials at risk were found to be especially lead and sensitive glass
with some risk also for iron objects and varnish (Laropal A81
Some risk for photo-oxidation of paper and sensitive pigments was found
Sensitive objects could be moved out of rooms with high acid emissions
It would be especially important to avoid high humidity situations with RH above ~ 60%
Rooms could be ventilated when the outdoor air is good (clean
Paper and objects with sensitive pigments could be moved into showcases or protective enclosures
or moved away from exposure to outdoor air and light
Annual air pollution level of major primary pollutants in Greater Area of Bucharest
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Reduction of acidic pollutant gases inside showcases by the use of activated carbon adsorbers
Performance evaluation for museum enclosures
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Impact loads of air pollutants on paintings: performance evaluation by modeling for microclimate frames
Occurrence of formaldehyde and organic acids in the museum environment
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reporting from location and initial description of measurement locations
TG did the laboratory dosimeter preparation
organizing of the delivery of passive samplers and their analysis from the NILU laboratory
interpretation and development of the manuscript
Both authors contributed to finalizing the manuscript
Both authors read and approved the final manuscript
We would like to acknowledge the leadership of the “Ferdinand I” National military museum and the Abbess of Tismana monastery who accepted to cooperate within the Memori project as beneficiary partners and gave the permission to publish the obtained results
This research was made possible through the generous contribution of the conservators Ms
Gabriela Tuas from the National military museum and Sister Maria from the Tismana monastery who have assisted the performed measurements
We want to thank Håvard Vika Røen at NILU who did the programing of the MEMORI technology web pages
The authors declare that they have no competing interests
All equations and data necessary to calculate the model are given either in the text or in the cited references
This work has been funded by the EU- Memori project (Grant Agreement No
265132) and by NILU-Norwegian Institute for Air Research
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations
Norwegian Institute for Air Research (NILU)
The Romanian Ministry of Research and Innovation (MCI)
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The stavrophore nun Mother Jerusalema (Gligor)
including more than 50 years as abbess of Tismana Monastery
was solemnly laid to rest on Saturday at the monastery she led for so many years
The service was officiated by His Grace Bishop Nicodim of Severin and Strehaia
who recalled that Mother Jerusalima always fulfilled every monastic obedience placed upon her with great love and dedication
but also of care for the community of monasteries,” His Grace said
emphasizing that Mother Jerusalema was “a good administrator and perfect housekeeper
managing to carry the helm of Tismana Monastery in the most difficult times
Archimandrite Vladimir Dărângă from the cathedral in Craiova also spoke about how important Mother Jerusalema was for the monastic life in the southwestern province of Oltenia and beyond: “Mother Jerusalima sent disciples who opened and reopened monasteries in the metropolitan city of Oltenia
He also emphasized that she was a tough mother who applied the canons with precision and thus
“filled the cemetery of the monastery with saints
who will probably form a Matericon of Tismana in the future.”
“Today we are at the funeral of a happy woman
a woman who knew with all her heart and with all her love to put her death before her eyes and not to make her position as abbess a wound to anyone,” said Fr
Constantin Necula from the Faculty of Theology in Sibiu
She entered monasticism at the age of 17 at Bistrița Monastery in 1946
she was appointed abbess after the arrest of the monastery’s Board of Directors on false charges
She ended up leading the monastic community for more than 50 years
Mother Jerusalima is especially remembered and cherished for her philanthropic activity and for managing to preserve and restore the entire monastery
the Patriarchate of Jerusalem solemnly celebrated the Sunday of the Myrrh-Bearing Women...
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it was announced that two Roman Catholic institutions in Bavaria have decided to jointly..
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Tenders for 455 MW of PV capacity replacing CE Oltenia’s coal plants drew investors from China
Romania
Igor Todorović
0
Eight companies and consortiums are participating in the tenders for the design, construction and operation of four solar parks on land belonging to Romania’s state-owned coal miner and power plant operator Complexul Energetic Oltenia
The government has bailed out the troubled utility using European funds
The strategy is to replace its assets with solar power and gas power plants
The locations are in the counties of Dolj and Gorj in the country’s southwest
The two companies valued the contracts at an overall EUR 375 million
Selected contractors would operate the solar power systems for three years and transfer them to CE Oltenia and OMV Petrom
The Ișalnița unit is envisaged with a minimum capacity of 85 MW and valued at EUR 69.6 million
is for at least 110 MW and a 400/110 kV substation
Project Tismana 1 should have no less than 128.3 MW
The European Union’s Modernisation Fund is covering 70% of the costs. According to data from Romania’s electronic public procurement system SEAP, reported by EuroOlteniaInfo, there are three sole bidders
Girişim Elektrik is a Turkish engineering
Ameresco Sunel Energy is a joint venture between Ameresco
but with operational headquarters in Athens
Romanian energy infrastructure and civil construction company Electrogrup is the third company bidding alone
Shanghai Electric placed a bid as a consortium of its subsidiaries Shanghai Electric Hong Kong International Engineering Co
Romanian company Actual Connect leads a consortium consisting of six other domestic companies
all with a track record in the photovoltaics sector
is the head of a consortium including Italian solar power project developer Comal
All participants submitted bids for all four photovoltaic plants except Restart Energy One
which is registered only for the first lot
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