NSW Health’s director of environmental health Dr Richard Broome said it was especially important for children, older people, and those with either chronic respiratory or cardiovascular conditions to limit the time they spend outside and not engage in vigorous exercise during a dust storm.

“If possible, stay in air-conditioned premises where filtration systems can help to reduce dust particles in the air,” Dr Broome said.

“Dust may aggravate existing heart and lung conditions and cause symptoms like eye irritation and cough.

“Symptoms can occur for several days after dust is inhaled, so people with the chronic conditions need to be vigilant with their treatment programs.

“People with asthma or a lung condition who develop symptoms such as shortness of breath, coughing or wheezing, should follow their Asthma or Chronic Obstructive Pulmonary Disease (COPD) Action Plan.

“If symptoms do not settle, seek medical advice. If you are on home oxygen treatment, continue as prescribed and if breathlessness worsens, contact your doctor.

“Healthy adults may also feel the effects of fine particles that can irritate the lungs, so it’s wise to reschedule or cut back on prolonged or strenuous outdoor activities when dust levels are high.”