Biomedical Engineering Reference
In-Depth Information
TABLE 2.2 (continued)
Summary of Nanoparticle Exposure Number Concentrations from Various Development
Laboratory and Manufacturing Workplaces
Number Concentration
Industry/Exposure
Material
Activity/Process
Background
Workplace
Reference
Sonication of
functionalized MWCNT
730
Aluminum (research and
development
laboratory) (pilot scale)
Cleaning/brush down of
plasma torch
6700
Methner et al. (2010)
Cleaning/brush down of
filter chamber
10,450
Cleaning/brush down of
cyclone
15,580
Silica-iron nanomaterial
manufacturer (pilot scale)
Inside spray enclosure
79,700
Methner et al. (2010)
Outside spray enclosure
2300
Inside fiberizer
6360
Titanium dioxide
manufacturer
Manual loading/unloading
trays inside booth
15,500
Methner et al. (2010)
Dumping into mixing
tank using focused LEV
3500
Spray dryer drum
changeout
1,44,800
Shop vacuum (no HEPA)
80,700
Manganese, silver,
cobalt, and iron oxide
Passivator tumbler
exhaust port
5970
Methner et al. (2010)
Opening reactor no LEV
85,900
Reactor cleanout-
manganese no LEV
16,900
Reactor cleanout-
manganese with LEV
100
Reactor cleanout- silver
no LEV
6100
Reactor cleanout- silver
with LEV
0
Reactor cleanout- cobalt
no LEV
12,900
Reactor cleanout- cobalt
with LEV
1900
Nylon 6 nanofiber
manufacturer
Propane forklift exhaust
45,000
Methner et al. (2010)
Electric arc welding
84,600
Die casting plant
Machining
Park et al. (2010)
1.22 × 10
5
Trim
1.65 × 10
5
Die cast
2.83 × 10
5
Fastener manufacturing
factory
Forming
—
Wang et al. (2011)
2.13 × 10
5
Threading
—
1.42 × 10
5
Heat treating
—
3.47 × 10
5
Ambient
—
0.126 × 10
5
FSP pilot plants (FePO
4
)
Flame spray pyrolysis
-
Wegner et al. (2011)
6.9 × 10
4
-8.4 × 10
4
