Overview

Safe Work Australia is evaluating the Workplace exposure standards for airborne contaminants to ensure they are based on the highest quality, contemporary evidence and supported by a rigorous scientific approach.

We would like your feedback on the draft evaluation reports and recommendation. In particular comments of a technical nature are sought about:

  • the toxicological information and data that the recommended workplace exposure standard is based upon, and

  • the measurement and analysis information provided.

For more information on other chemicals and their release dates, please see the release schedule.

Comments are open from Friday 30 August 2019 and will close on 27 September 2019.

Chemicals open for comment this release:

Chemical

Revision Proposed?

Current TWA

Recommended TWA

ppm

mg/m3

ppm

mg/m3

Acetaldehyde

Yes – interim value

20

36

20
(peak limitation)

36
(peak limitation)

Acetic acid

No

10

25

10

25

Acetic anhydride

Yes

5
(peak limitation)

21
(peak limitation)

0.5

2.1

Acetone

Yes

500

1195

250

594

Acetonitrile

Yes

40

67

20

34

Acetylsalicylic acid

No

–

5

0.68

5

Acrolein

Yes

0.1

0.23

0.02

0.05

Acrylamide

Yes

–

0.3

2.8x10-4

0.8 µg/m3

Acrylic acid

Yes

2

5.9

10

29

Acrylonitrile

Yes

2

4.3

0.5 ppb

1.17 µg/m3

Aldrin

Yes

–

0.25

–

0.05

Allyl alcohol

Yes

2

4.8

1

2.4

Allyl chloride

Yes – interim value

1

3

0.01

0.03

Allyl glycidyl ether (AGE)

Yes – interim value

5

23

0.1

0.5

Allyl propyl disulphide

No

2

12

2

12

Aluminium & compounds

Yes – interim value

–

Various

–

1

2-Aminopyridine

No

0.5

2

0.5

1.9

Amitrole

No

–

0.2

–

0.2

Ammonia

Yes

25

17

20

14

Ammonium chloride

No

–

10

–

10

Ammonium perfluorooctanoate

Yes

–

0.1

–

0.01

Ammonium sulphamate

No

–

10

–

10

Amyl acetate
(iso-, n- & sec- isomers)

No

50

-

50

-

Aniline & homologues

Yes

2

7.6

0.5

1.94

Anisidine
(o-, p- isomers)

Yes –interim value

0.1

0.5

0.01

0.05

Antimony & compounds

No

–

0.5

–

0.5

Antimony trioxide

Yes

–

0.5

Not recommended

Not recommended

ANTU

Yes - removal

–

0.3

Not recommended

Not recommended

Arsenic & soluble compounds

Yes

–

0.05

–

0.01

Arsine

Yes – interim value

0.05

0.16

0.005

0.016

Atrazine

Yes

–

5

–

1

Azinphos-methyl

Yes

–

0.2

–

1

Barium sulfate

Yes

–

10

–

1.35 (respirable)
4 (inhalable)

Barium & soluble compounds

Yes -
interim value

–

0.5

–

0.5

Benomyl

Yes

0.84

10

–

1

Benzene

Yes

1

3.2

0.2

0.7

Benzidine

New

–

–

–

0.002 µg/m3

1H-Benzotriazole

New

–

–

Further evaluation required

Further evaluation required

Benzoyl chloride

New

–

–

0.5
(peak limitation)

2.8
(peak limitation)

For any assistance in providing your comments please contact us at WESconsult@swa.gov.au.

Draft evaluation reports and recommendations