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Outdoor airborne allergens are tiny particles in the air that can cause allergic reactions when people who suffer from hay fever or asthma breathe them in. The primary outdoor allergens include pollen and fungal spores.
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Airborne allergens are particles in the air, including fungal spores and pollutants, that can cause or worsen allergic reactions and respiratory conditions such as hay fever and asthma.
This page contains information for coping with illness caused by airborne allergens like hay fever, asthma and allergies.
Indoor airborne allergens are particles present in indoor environments that can trigger allergic reactions or exacerbate respiratory conditions such as asthma.
Respiratory health conditions caused by airborne allergens and the groups that are most vulnerable to poor indoor air quality.
There is evidence that air pollutants such as ozone, nitrogen dioxide and sulphur dioxide can exacerbate respiratory conditions.
This page summarises Chapter 6 of the Health Effects of Climate Change (HECC) report with a focus on the impact of heat on outdoor allergens. This is part of the science and stats section for the hazard: heat.
Discover more about airborne allergens, air quality, water quality and other environmental exposures such as chemicals and radiation. These pages are under development and some topics are not yet available.
Asthma is a long-term condition and it is thought that symptoms can be worsened by exposure to viruses, allergens and air pollution.
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