The UK Health and Safety Executive (HSE) has published GB MCL Agency Opinions for the following substances:

1. Sulphur dioxide

2. Bifenox

3. 1,2-benzisothiazol-3(2H)-one

4. 1,4-Benzenediamine, N,N'-mixed Ph and tolyl derivs.

5. 4-methylimidazole

6. 3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctan-1-ol

7. Tetramethylene dimethacrylate

8. 7,7,9(or 7,9,9)-trimethyl-4,13-dioxo-3,14-dioxa-5,12- diazahexadecane-1,16-diyl bismethacrylate

9. 2,2'-ethylenedioxydiethyl dimethacrylate

10. 2,2'-[[3-methyl-4-[(4-nitrophenyl)azo]phenyl]imino]bisethanol

11. Lithium carbonate [1]; lithium chloride [2]; lithium hydroxide [3]

12. Benalaxyl