WebAvery Mills Roberts APES 2/22/23 7.A Atmospheric Pollution At night, O3 reacts with NO to form NO3 and O2 once again: O3 levels drop overnight Photochemical smog - formed by VOCs and nitrogen oxides- both react with sunlight to produce more pollutants; common in urban areas with dry warm sunny weather like Los Angeles or Beijing Factors that … WebHydrocarbons in air by themselves alone cause no harmful effects. However, they undergo chemical reactions in the presence of sunlight and nitrogen oxides. They form …

EPA Information - Photochemical smog — what it …

WebPhotochemical smog —what it means for us March 2004 ... • eye irritation • respiratory problems (particularly for conditions such as asthma) ... It can cause the cracking of … WebPhotochemical smog is formed in warm and sunny climate during day time by the action of sunlight on primary pollutants. It contains nitrogen oxides, ozone, PAN, etc., which are … earth and sun comparison

Photochemical Smog - What is it and How is it …

WebSep 12, 2024 · Photochemical smog is a brown haze formed by NOx, SOx, COx, CH, VOCs, PAN, and many other contaminants. It is formed as a result of the reaction between nitrogen oxides, VOCs, etc with sunlight. It has various effects on the environment such as lungs problem, heart diseases, skin diseases, eye irritation, etc. What is the main cause of ... Environmental irritants: Tobacco smoke, smog, chlorinated pool water and even dry weather can all irritate your eyes. Environmental irritants may also cause feelings of grittiness or graininess in your eyes. Foreign objects: Sometimes, the sensation that something is “stuck” in your eye is actually true. See more Several at-home remedies can lessen eye irritation and help you find relief. You may: 1. Apply warm compresses to your affected eye. 2. Rinse your eye out with … See more Depending on the root cause of eye irritation, you may need additional medical treatments. See a healthcare provider if home remedies don’t work or if you have eye … See more Minor eye irritation usually goes away in a day or two. More serious infections may cause eye irritation lasting one to two weeks. See your healthcare provider if … See more You can keep your eyes healthy and lower your risk of eye irritation with a few simple practices, including: 1. Avoiding sharing makeup or skin care products … See more Webretardation (esp. in children)-Some lead-containing chemicals cause cancer in test animals.-Harm wildlife (EPA data) Nitrogen Dioxide (NO2)-Reddish-brown irritating gas that gives photochemical smog its brownish color-In the atmosphere can be converted to nitric acid (HNO3), a major component of acid deposition.-49% fossil fuel burning in motor vehicles … earth and the earth difference