Grants of up to $100,000 will be made available for small businesses and commercial fisheries and aquaculture licence holders affected by the algal bloom.

Round 3 of the grants is for businesses that have already received algal bloom support and continue to experience impact.

Funding covers ongoing fixed costs including utilities, rent, wages and finance payments and is dependent on revenue.

Applications are open until 31 July. Visit the Business SA website for more information.

According to the latest state government testing results, the southwest of Yorke Peninsula and the southern coast of Kangaroo Island remain the only active bloom areas in the state.

Beach patrols are continuing to check the shoreline in real time for abnormal foam, water discolouration and when the beach was last cleaned.

The Beachsafe app and website is updated daily using this information at 23 metro and southern coastal sites, from North Haven to Goolwa.

Visit the dedicated algal bloom website for more information and the latest testing reports.