The haze now engulfing Sydney isn't an isolated problem. Cities around the world struggle to manage the many sources of tiny airborne particles and the discomfort and illnesses these cause.
What lessons can Australia learn from tackling asbestos to manage this latest preventable occupational hazard?
Even the tidiest space has some dust. Researchers are investigating just what these indoor particles are made of and their possible implications for human health.
New research projects that climate change could greatly increase airborne dust levels in the southwestern US, causing higher hospital admissions and premature deaths from heart and lung ailments.
We're seeing the resurgence of an old lung disease in people who make and install the type of engineered stone product you might find in your kitchen or bathroom.
Coal dust and oil can spread toxic chemicals hundreds of kilometres out to sea. But Australia's monitoring guidelines do not meet the standards used in countries such as the United States.
Parents in three Australian states are being given misleading advice about the dangers of lead to babies and small children – including failing to warn pregnant women about miscarriage risks.
Dust from pulverised comets rather than an alien megastructure could explain odd flicker of distant star.
Cleanliness is next to godliness. Did you know hairiness is a part of the equation as well?