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Table 2 Measurements in the work environment

From: Reticulocytosis in screen-printing workers exposed to 2-butoxyethanol and 2-ethoxyethanol

Measured Solvent

OEL

(TWA, ppm)

Measurement

Second half of 2015 (ppm)

Measurement

First half of 2016 (ppm)

Primary operator

Secondary operator

Primary operator

Secondary operator

2-Butoxyethanol

20

1.408

2.056

3.350

3.099

2-Ethoxyethanol

5

NE

NE

2.578

2.507

Ethylbenzene

100

3.451

2.904

3.994

4.110

Xylene

100

1.351

1.559

1.815

2.727

Cyclohexanone

25

3.704

2.847

1.507

3.024

Trimethylbenzene

25

0.016

ND

0.327

0.491

Isopropyl alcohol

200

NE

NE

0.484

0.418

Methyl isobutyl ketone

50

ND

ND

NE

NE

Toluene

50

ND

ND

NE

NE

  1. NE not measured, ND not detectable, OEL occupational exposure limit, TWA time-weighted average