Also, people are not equally sensitive to chemicals and may not be affected by them in the same way. In most cases, people will notice an odor well below the level in air that would cause health effects. Can odors cause health effects?Ĭhemicals that trigger odors may cause health effects. For example, people who work with compost or garbage may not notice the smell after a while. Also, people exposed to the same odor for a long time may no longer notice the odor, even if it is unpleasant. However, people living near the bakery might not enjoy those strong smells every day. For example, many people would walk into a bakery and enjoy the smell of fresh baked breads and pastries. An odor that one person thinks is pleasant may be unpleasant to someone else. People also may react to odors in different ways. Examples of factors that can affect a person's sense of smell include age, sex and whether or not they smoke. At higher levels, most people will notice the odor. At low levels, some people will notice the odor while others won't notice any. People's ability to smell a particular odor will vary. Do people differ in how they notice odors? It also doesn't tell you whether or not what you are smelling will cause health effects. Smelling an odor doesn't tell how much exposure you have. Chemicals vary in their ability to produce odors and people vary in their ability to smell odors.
An odor might be due to a single chemical or mixture of chemicals. When you notice an odor, that tells you that you are exposed to something in the air that triggered your sense of smell.
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