Assessment of Chemical Hazard from Decoration Firing Kiln in a Benjarong Porcelain Manufacturing Community Enterprise
Benjarong porcelain is a unique Thai pottery. It represents the art and culture of Thailand for hundreds of years. The decorating pattern uses various colors, including metal oxide, glue and gold paint. In the firing process, chemical emissions are produced from the kiln, which have not been s...
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| Main Authors: | , , , , , , , |
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| Other Authors: | |
| Format: | Original Article |
| Language: | English |
| Published: |
2021
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| Subjects: | |
| Online Access: | https://repository.li.mahidol.ac.th/handle/123456789/63740 |
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| Institution: | Mahidol University |
| Language: | English |
| Summary: | Benjarong porcelain is a unique Thai
pottery. It represents the art and culture of
Thailand for hundreds of years. The decorating
pattern uses various colors, including metal
oxide, glue and gold paint. In the firing process,
chemical emissions are produced from the kiln,
which have not been studied before. From
the literature review, the potential pollutants
comprise hydrogen cyanide, formaldehyde,
metal fumes and flue gases. This study
assessed the type and concentration of
chemicals emitted from Benjarong decoration
firing kiln. One voluntary Benjarong enterprise,
using regular decoration firing, was selected as
the study site. Air samples were collected and
analyzed for hydrogen cyanide, formaldehyde,
heavy metals, i.e., lead (Pb), nickel (Ni) and
cadmium (Cd) and flue gases inside, beside
and behind the kiln storage room, respectively.
The result showed that all chemical concentrations
were lower than the Occupational
Exposure Limit (OEL) of the U.S.OSHA standard.
However, the maximum concentration of Pb
was quite close to the OEL standard value at
0.044 mg/m3 showing that the greatest health
risk in Benjarong production is Pb exposure. |
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