© Benaki Phytopathological Institute
Operator exposure levels and evaluation of different coverall performance
11
ing an inhalation rate of 29 l/min, divided by
the air sampler’s pumping rate of 2 l/min).
Following application, the dosimeters
were removed, wrapped in aluminum foil, la-
beled and packed in individual plastic bags.
Field samples were placed in a cool box and
transferred to a freezer below –18
o
C within 2
hours. The outer nitrile gloves were extract-
ed directly in the field, since it was known
from previous studies that recovery of the
a.s. decreases over time in nitrile gloves (1).
The aforementioned extraction was done
by rinsing the gloves in 400 ml of hexane
contained in a polyethylene bag and shak-
Table 1.
Application conditions and parameters for the greenhouse trials using Novi-F spray-
er.
Application number
1 2 3 4 5 6 7 8 9 10
Operator/Trial Code
A1 A2 A3 A4 A5 B1 B2 B3 B4 B5
Monitoring
Method/Coveralls
Whole Body Dosimetry /
Outer Hydrofoil, inner cotton
Whole Body Dosimetry /
Outer Cotton, inner cotton
Operator height (cm)
185 170 178 175 168 178 168 180 176 188
Operator weight (kg)
75 85 82 82 68 74 68 120 65 115
Age (years)
55 60 43 49 32 29 32 41 32 40
Experience (years)
10 3 2 20 10 1 10 20 2
15
Nominal FST concentration (g/l)
750 750 750 750 750 750 750 750 750 750
Crop height (cm)
160-200 190 100 165 170 140 170 150-200 200 170-205
Row distance (cm)
110-120 120 200 150 150 120 150 110-180 140 110-125
Application Duration (min)
39 65 39 49 53 64 53 68 77 65
Application Area (ha)
0.296 0.315 0.500 0.374 0.357 0.401 0.305 0.309 0.396 0.275
FST volume /time (l/h)
323 256 415 331 442 295 362 333 304 267
FST volume/area (l/ha)
710 880 540 722 1093 785 1051 1221 984 1053
Temperature
19-26 16-22 26-27 28-31 28-30 26-29 24-29 24-29 22-26 25-31
Relative Humidity (%)
52-60 56-75 47-51 46-59 38-40 51-58 28-43 48-58 49-67 42-63
Cross contamination
-
-
cap -
-
-
-
-
-
-
Parameters common for all trial codes
Operator
Male, right-handed
Location
Tympaki, Heraklion Prefecture, Crete, Greece
Crop
Greenhouse-grown pepper
Formulation
Rovral 50 SC
Active substance
Iprodione 50% w/v
Formulation Dilution (ml/100 l)
150
Air sampler flow rate (l/min)
2
Application scenario
Full cover spraying with Novi-F (4 nozzles)
Nozzle(s) type
Novi-F
Nozzle distance from ground (cm)
50-180
Mean nozzle flow (l/min)
5.5
Hand exposure monitoring
Inner cotton gloves / outer nitrile gloves
Head exposure monitoring
Baseball cap
Inhalation exposure monitoring
XAD-2
1...,2,3,4,5,6,7,8,9,10,11 13,14,15,16,17,18,19,20,21,22,...34