Pseudomonas is a bacteria that include various species, some of which can be located in water environments. Pseudomonas aeruginosa is one of the most common species associated with water contamination and whilst it is a naturally occurring bacterium, certain strains of Pseudomonas, particularly pseudomonas aeruginosa, can cause infections and pose health risks particularly in individuals with compromised immune systems. Pseudomonas bacteria are commonly found in soil, water, and various man-made environments, where they can enter water sources through environmental contamination, inadequate water treatment, or plumbing systems that provide suitable conditions for bacterial growth. In water systems, Pseudomonas bacteria can form biofilms and contribute to various issues including, infections, respiratory tract infections, urinary tract infections, wound infections and bloodstream infections. Those with weakened immune systems or those with chronic illnesses or medical treatments are more susceptible to these infections. Known for their ability to form biofilm, which are a slimy protective layer of bacteria that adhere to surfaces and can contribute to the growth of other bacteria’s, reduce water flow and cause clogging in water systems. Pseudomonas can cause water discolouration, odours, and turbidity, which in return can contribute to the degradation of water quality parameters, such as taste and odour issues.
Addressing Pseudomonas contamination in water can be though water disinfection, such as chlorine and chloramines and UV light treatment, ozone, or advanced oxidation processes may also be employed depending on specific circumstances. Regular cleaning and flushing of water systems, particularly in areas of stored or stagnated water which can help aid in the build-up of biofilms and reduce potential for Pseudomonas growth.