Document ID: EPA-HQ-OPP-2005-0263-0006
Agency: epa
Document Type: Supporting & Related Material
Title: 
Posted Date: 2005-10-26T04:00Z

Appendix
C
­
Occupational
Post­
Application
Risks
of
MCPB
Exposures
Chemical:
MCPB
Reason:
Short/
Intermediate
Term
Exposure
Assessor:
TD
Date
06/
30/
2005
Crops
Applicable
TC
Groups
Spreadsheet
Number
Peas
Field
Row/
Low
Medium
C1
DFR
Data
Defaults:

Initial
Percent
of
Rate
as
DFR
(%):
20
Dissipation
Rate
per
day
(%):
10
Toxicology
&
Exposure
Factor
Inputs:

Uncertainty
Factor:
100
NOAEL
(
mg/
kg/
day):
100
Source
of
NOAEL:
Dermal
Tox
Study
Adult
Exposure
Duration
(
hrs/
day):
8
Adult
Body
Weight
(
kg):
70
Dermal
Abs.
(%):
N/
A
Appendix
C
­
Occupational
Post­
Application
Risks
of
MCPB
Exposures
Spreadsheet
C1
Chemical:
MCPB
Reason:
Short/
Intermediate
Term
Exposure
Transfer
Coefficient
Group:
Field/
row
crop,
low/
medium
Specific
Crop(
s)
Considered:
Peas
Application
Rate
of
Crop
(
lb
ai/
A):
1.5
Application
Rate
Source:
Max
Label
Rate
DFR
Data
Summary
Data
Source
(
enter
1
if
data
available,
0
if
defaults):
0
Source:
N/
A
Slope
of
Semilog
Regression:
N/
A
[
Initial]
(
ug/
cm2):
N/
A
Study
Application
Rate
(
lb
ai/
A):
N/
A
Limit
of
Quantification
(
ug/
cm2):
N/
A
Exposure
Inputs
Summary
Exposure
Potential
Transfer
Coefficients
(
cm2/
hour)
Activities
Used
For
RA
Range
Very
Low
N/
A
N/
A
N/
A
Low
100
TBD
Irrigation,
scouting,
thinning,
weeding
immature/
low
foliage
plants
Medium
1500
486
to
2760
Irrigation,
scouting,
weeding
mature/
high
foliage
plants
Label
Recommendations:
Do
not
apply
later
than
3
nodes
before
pea
flowering
or
after
pea
flower
buds
appear.

DAT
DFR
LEVELS
DOSE
MOES
(
ug/
cm2)
(
mg/
kg/
day)

Default
Adjusted
For
Rate
Low
Exposure
Medium
Exposure
Low
Medium
0
3.366
N/
A
0.0385
0.5770
2600
173