Question: An alert on my smartphone told me today is an Ozone Action Day. What is that and how does it affect me? – D.E., New York, NY
Answer: An Ozone Action Day is a day when the concentration of ozone gas in a particular area is predicted to be higher than healthy levels. Ozone Action Days generally coincide with high buy doxycycline days. Ozone is one of the main urban air pollutants that we regulate, due to its potential negative impacts on human health, alone or in combination with other pollutants such as particulate matter. Ozone can irritate the lungs and cause respiratory symptoms, especially in sensitive groups such as children, the elderly, and those with respiratory problems such as asthma or COPD.
On Ozone Action Days it is generally a good idea to avoid exercise outdoors if possible. Children’s outdoor play time should be limited on those days, especially for children with asthma. You can do your part to help keep ozone levels down on Ozone Action Days by taking measures to reduce your emissions of NOx and volatile organic compounds (VOCs): limit electricity use and use of gasoline vehicles.
Pregunta:Me gusta mucho la clima buena del verano, pero no me gusta la contaminación del aire. ¿Por qué es la contaminación del aire peor en el verano? – T.S., New York, NY
Respuesta: Hay muchos factores que trabajan juntos para producir más contaminación del aire en el verano que en las otras estaciones. En el verano, las temperaturas son más altas y hay más luz solar. Estas cosas aceleran algunas reacciones químicas en la atmósfera que conducen al smog. Alta humedad mejora la química de partícula de aerosol. Las plantas también emiten más compuestos orgánicos volátiles (VOCs) naturales que se combinan con los contaminantes para que crear las partículas atmosféricas. Además, el aire tiende a ser más estancada cuando el clima está caliente.
This long winter has had the AIRE team thinking about the amount of time we spend indoors, and the air quality there.
– These days, most people spend the vast majority of their time indoors (especially in the winter!). There is therefore high potential for exposure to pollutants indoors, i.e., at home or in the workplace.
– While what we think of as commonplace outdoor pollutants (e.g. car exhaust) may be less prevalent indoors than outdoors, other chemicals such as volatile organic compounds (VOCs) can be present at much higher concentrations indoors. Indoor VOCs may come from many sources including cleaning products, air fresheners, and new furniture. They can harmful to health on their own, or serve as precursors for the formation of aerosol particles.
– You have probably heard about secondhand smoke, which is the exposure of non-smokers by being around smokers. Thirdhand smoke can also be a problem. This occurs when nicotine, tar, and other harmful chemicals in tobacco smoke deposit on indoor surfaces like walls and carpets. People can be directly exposed to these chemicals through contact the surface, or reactions with gases like ozone may cause them to re-enter the gas phase.
We are looking forward to the warmer weather and more time in the fresh air outdoors!
Question: How far do pollutants from one place travel? Can we detect pollutants from far away places in our air here? – S.S., Seattle, WA
Answer: Some atmospheric gases and particles can travel over long distances, making air quality an international issue. Dust from dust storms in Africa and China regularly reaches the Western Hemisphere, and there is evidence that the long-range transport of pollution from Asia is raising the background levels of pollutants on the West Coast of the US. is it safe to order doxycycline online was a recent major collaborative NASA science campaign to study the intercontinental
transport of atmospheric pollutants.
Question: What are the health effects of pollution on humans? – L.I., Miami, FL
Answer: Poor air quality primarily affects the cardiovascular and respiratory systems. According to the EPA, exposure to particulate matter and ozone is associated with aggravated asthma, chronic bronchitis, reduced lung function, irregular heartbeat, heart attack, and premature death in people with heart or lung disease. For more information, see buy doxycycline online uk, maintained by Health Canada