Characterization of Total and Size-Fractionated Manganese Exposure by Work Area in a Shipbuilding Yard
Background: Shipbuilding involves intensive welding activities, and welders are exposed to a variety of metal fumes, including manganese, that may be associated with neurological impairments. This study aimed to characterize total and size-fractionated manganese exposure resulting from welding opera...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2016-06-01
|
| Series: | Safety and Health at Work |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2093791115001158 |
| _version_ | 1797705798569164800 |
|---|---|
| author | Jee Yeon Jeong Jong Su Park Pan Gyi Kim |
| author_facet | Jee Yeon Jeong Jong Su Park Pan Gyi Kim |
| author_sort | Jee Yeon Jeong |
| collection | DOAJ |
| description | Background: Shipbuilding involves intensive welding activities, and welders are exposed to a variety of metal fumes, including manganese, that may be associated with neurological impairments. This study aimed to characterize total and size-fractionated manganese exposure resulting from welding operations in shipbuilding work areas.
Methods: In this study, we characterized manganese-containing particulates with an emphasis on total mass (n = 86, closed-face 37-mm cassette samplers) and particle size-selective mass concentrations (n = 86, 8-stage cascade impactor samplers), particle size distributions, and a comparison of exposure levels determined using personal cassette and impactor samplers.
Results: Our results suggest that 67.4% of all samples were above the current American Conference of Governmental Industrial Hygienists manganese threshold limit value of 100 μg/m3 as inhalable mass. Furthermore, most of the particles containing manganese in the welding process were of the size of respirable particulates, and 90.7% of all samples exceeded the American Conference of Governmental Industrial Hygienists threshold limit value of 20 μg/m3 for respirable manganese.
Conclusion: The concentrations measured with the two sampler types (cassette: total mass; impactor: inhalable mass) were significantly correlated (r = 0.964, p < 0.001), but the total concentration obtained using cassette samplers was lower than the inhalable concentration of impactor samplers. |
| first_indexed | 2024-03-12T05:41:45Z |
| format | Article |
| id | doaj.art-9834c03e78bf4c9c9de6a65a2a61b15d |
| institution | Directory Open Access Journal |
| issn | 2093-7911 |
| language | English |
| last_indexed | 2024-03-12T05:41:45Z |
| publishDate | 2016-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Safety and Health at Work |
| spelling | doaj.art-9834c03e78bf4c9c9de6a65a2a61b15d2023-09-03T05:59:31ZengElsevierSafety and Health at Work2093-79112016-06-017215015510.1016/j.shaw.2015.12.003Characterization of Total and Size-Fractionated Manganese Exposure by Work Area in a Shipbuilding YardJee Yeon Jeong0Jong Su Park1Pan Gyi Kim2Department of Occupational and Environmental Health, Yong In University, Yongin, Republic of KoreaKorea Occupational Safety and Health Agency, Gunsan, Republic of KoreaDepartment of Occupational and Environmental Health, Yong In University, Yongin, Republic of KoreaBackground: Shipbuilding involves intensive welding activities, and welders are exposed to a variety of metal fumes, including manganese, that may be associated with neurological impairments. This study aimed to characterize total and size-fractionated manganese exposure resulting from welding operations in shipbuilding work areas. Methods: In this study, we characterized manganese-containing particulates with an emphasis on total mass (n = 86, closed-face 37-mm cassette samplers) and particle size-selective mass concentrations (n = 86, 8-stage cascade impactor samplers), particle size distributions, and a comparison of exposure levels determined using personal cassette and impactor samplers. Results: Our results suggest that 67.4% of all samples were above the current American Conference of Governmental Industrial Hygienists manganese threshold limit value of 100 μg/m3 as inhalable mass. Furthermore, most of the particles containing manganese in the welding process were of the size of respirable particulates, and 90.7% of all samples exceeded the American Conference of Governmental Industrial Hygienists threshold limit value of 20 μg/m3 for respirable manganese. Conclusion: The concentrations measured with the two sampler types (cassette: total mass; impactor: inhalable mass) were significantly correlated (r = 0.964, p < 0.001), but the total concentration obtained using cassette samplers was lower than the inhalable concentration of impactor samplers.http://www.sciencedirect.com/science/article/pii/S2093791115001158exposuremanganeseparticle sizeshipbuildingwelding fume |
| spellingShingle | Jee Yeon Jeong Jong Su Park Pan Gyi Kim Characterization of Total and Size-Fractionated Manganese Exposure by Work Area in a Shipbuilding Yard Safety and Health at Work exposure manganese particle size shipbuilding welding fume |
| title | Characterization of Total and Size-Fractionated Manganese Exposure by Work Area in a Shipbuilding Yard |
| title_full | Characterization of Total and Size-Fractionated Manganese Exposure by Work Area in a Shipbuilding Yard |
| title_fullStr | Characterization of Total and Size-Fractionated Manganese Exposure by Work Area in a Shipbuilding Yard |
| title_full_unstemmed | Characterization of Total and Size-Fractionated Manganese Exposure by Work Area in a Shipbuilding Yard |
| title_short | Characterization of Total and Size-Fractionated Manganese Exposure by Work Area in a Shipbuilding Yard |
| title_sort | characterization of total and size fractionated manganese exposure by work area in a shipbuilding yard |
| topic | exposure manganese particle size shipbuilding welding fume |
| url | http://www.sciencedirect.com/science/article/pii/S2093791115001158 |
| work_keys_str_mv | AT jeeyeonjeong characterizationoftotalandsizefractionatedmanganeseexposurebyworkareainashipbuildingyard AT jongsupark characterizationoftotalandsizefractionatedmanganeseexposurebyworkareainashipbuildingyard AT pangyikim characterizationoftotalandsizefractionatedmanganeseexposurebyworkareainashipbuildingyard |