Weather conditions that cause rapid changes in wind, temperature and humidity can lead to a condition called ‘Thunderstorm asthma’. The season, climate and weather conditions can all influence the levels of pollen in the atmosphere. These can also make a contribution to the tiny particles in the air that can be inhaled and deposited in the lungs, especially if wet or damp wood is burned. As well as causing damage to sensitive natural habitats, ammonia emissions can contribute to particulate pollution. Ammonia is emitted during the storage and spreading of manure and slurries and from the application of inorganic fertilisers. Farming and agricultureĪmmonia emissions from the agricultural sector also contribute to pollution in urban areas. Burning of fossil fuelsīurning of fossil fuels is also a significant source of air pollution and the UK government, in association with industry, is working to promote cleaner fuel and invest in new technology. Travel, whether commuting to work or to school by your own or public transport, can lead to daily exposure as these pollutants can enter through open doors and windows. Outdoor air pollution can also access our living and working spaces creating additional sources of exposure. The very small particles can pass into the bloodstream and cause cardiovascular disease. Particulates from diesel exhaust are a particular problem as they contain very small particles which can remain in the atmosphere for a long time and can be breathed in and deposited deep into the lungs causing symptoms in respiratory conditions. Traffic pollutants are a major source of airborne pollution, especially in busy urban areas. Where air pollution comes from Traffic and Travel So it is very important to be aware of the substances present in the air (environmental allergens) so that you can recognise if these are possible trigger factors which cause allergic symptoms that worsen your allergy. These exposures can impact on how well controlled allergic rhinitis (hay fever), asthma and other allergic disorders are and, at worst, may contribute to a flare up or exacerbation which requires a GP appointment or even an Accident and Emergency visit. Pollutants in the air can trigger respiratory symptoms, for example a cough, breathing difficulties or wheeze in those people who are susceptible to a substance in the environment that can cause allergic symptoms (environmental allergies) if inhaled. Sensitivity to the adverse effects of air pollutants will vary in individuals and air pollution levels will also vary seasonally, from day to day, as well as by the time of day. There is a proven link between the quality of the air we breathe and the health of people living with allergic disease.
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