2 August 2023On Thursday August 3 burns are planned for Marramarra National Park near Maroota north of Sydney on the Hawkesbury River. Smoke may affect the surrounding areas and people with asthma or other respiratory problems are advised to keep clear of the areas or stay indoors, close windows and doors, and follow their health plan. Smoke may affect the surrounding areas and people with asthma or other respiratory problems are advised to keep clear of the areas or stay indoors, close windows and doors, and follow their health plan