(AU2020202612) Microbicidal aqueous solutions including (a) monochloramine and (b) at least one peracid, are described. Components (a) and (b) can be present in an effective amount to control the growth of at least one microorganism and the aqueous solution is at a pH of from about 5 to about 12. Methods for controlling the growth of microorganisms are also disclosed.
(AU2020202612) 1. A composition comprising (a) monochloramine and (b) peracetic acid, wherein components (a) and (b) are present in a synergistically microbicidally effective combined amount to control the growth of at least one microorganism. 2. The composition of claim 1, wherein (a) to (b) are present at a weight ratio of from about 1:99 to about 99:1 or from about 1:30 to about 30:1 or from about 1:2 to about 2:1.