Port Macquarie residents woke to a hazy view of smoke-filled streets on Friday, November 15.
The smoke has caused visibility on roads difficult and some residents have been seen wearing masks when outside.
The North Coast Public Health Unit is advising Mid North Coast residents to take health precautions while the bushfire smoke blankets the region and affects air quality.
Fine smoke particles affect the human cardiovascular and respiratory systems and can aggravate existing chronic health conditions, by penetrating deep into the lungs and entering the blood system.
Acting Director of North Coast Public Health Unit, Greg Bell, said the smoke particles can cause itchy or burning eyes, throat and nose irritation, and breathing problems.
"We urge people with chronic cardiac and respiratory conditions to minimise exposure to bushfire smoke and to take steps to protect their health," Mr Bell said.
"Smoke exposure can lead people with lung disease or chronic bronchitis to develop shortness of breath, coughing or wheezing, many days after smoke is inhaled.
"We recommend these people closely monitor their symptoms and follow their asthma or Chronic Obstructive Pulmonary Disease (COPD) action plan.
"If you're prescribed a preventer puffer, it's really important to be taking it at the moment. If symptoms do not settle, contact your doctor."
Mr Bell advised residents, particularly those sensitive to smoke, to stay indoors until the air clears and avoid strenuous exercise or heavy outdoor work, where possible.
Air conditioning can also help to filter particles from indoor air.
Healthy adults may also feel the effects of fine smoke particles that can irritate the lungs, but generally any symptoms will clear after the smoke disappears.
In the event of an emergency, always remember to dial Triple Zero (000).
More information about bushfire smoke is available at: https://www.health.nsw.gov.au/environment/air/Pages/air-factsheets.aspx
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