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Providing collection care, preservation and conservation treatment services to collectors and collecting institutions. |
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Collection Care > Environment
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Pollutants & ParticulatesGases and particles are the two components of air pollution. Particles from burning fuels or cigarette smoke are sooty and tarry, acidic from adsorbed sulfuric acid, and contain trace metals, such as iron, which start degradation. Dust is abrasive, unsightly, and may absorb acidic fumes or moisture from the air. Absorbed water damages glass and metals. Abrasive particles act as little saw teeth, cutting organic material when it expands and contracts from humidity fluctuations or scratching finely polished surfaces. Acid corrodes metals and destroys organic material. Sulfur dioxide, a common pollutant gas, is formed from burning fossil fuels. It turns into sulfuric acid in the presence of water and can rapidly disintegrate carbonate materials such as chalk, limestone, marble, and alkaline sandstone. It also embrittles and yellows plant fibers such as paper, cotton, linen, rayon, and wood; causes "red rot" in leather; attacks paints and pigments; breaks down synthetic materials such as nylon and rubber; and corrodes metal. Oxidizers, primarily ozone and nitrogen dioxide, are produced when oxygen breaks down. Ultraviolet rays in the upper atmosphere, sunlight on car exhaust fumes (photochemical smog), or certain lamps and electrical equipment such as electrostatic precipitators and photocopy machines (neither should be located near collection storage), create ozone or nitrogen dioxide. Oxidizers react with all organic materials causing structural breakdown. They attack dyes, pigments, inks, cotton, basketry, paper and polyesters. Nitrogen dioxide also forms nitric acid in the presence of high relative humidity, resulting in damage that is similar to that caused by sulfuric acid. Books and products we recommend:
Indoor Air Pollution in Museums and Archives
Indoor Air Pollution: Detection and Mitigation of Carbonyls, Presentation Abstracts and Additional Notes
Pollution in the photographic archive
Indoor Air Pollution: Detection and Prevention
CARBONYL POLLUTANTS : A MUSEUM PERSPECTIVE
Ozone: an Invisible Menace
1.8 Protection of Works of Art from Damage Due to Photochemical Smog.
1.9 Protection of Works of Art from Damage Due to Deposition of Airborne Particulate
Matter
1.10 Protection of Works of Art from Damage Due to Atmospheric Nitric Acid
1.11 Museum Survey of Indoor PAN, Nitrogen Dioxide,
Nitric Acid, Chlorinated Hydrocarbons, Sulfur Dioxide, and
Total Reduced Sulfur
1.13 Study of the Effects of Sulfur Dioxide and Nitrogen Dioxide on Deacidified
Papers-Part 1
1.14 Study of the Effects of Sulfur Dioxide and Nitrogen Dioxide on Deacidified
Papers-Part 2
1.19 Museum Survey for Indoor Aldehydes, Ketones, and Organic Acids
1.20 Exposure of Artists' Colorants to Airborne Formaldehyde, Peroxyacetyl Nitrate
(PAN) and (PAN Nitrogen Dioxide Ozone).
Pollutants in Museums
First results of a pilot decontamination in a
PCP polluted building by means of a humidity
controlled thermal process
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Environment
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