Intestinal metaplasija (IM) is not a common founding. It can be found in less than 5% of people infected with Helicobacter pilory. But Patients with a history of prolonged gastritis and intestinal metaplasia have a 6-fold increase in their risk of developing gastric cancer. The risk is especially high if the intestinal metaplasia is type-3.
What is ozone? Ozone, or O3, is a gas containing three oxygen atoms. Ozone is an unstable chemical that is highly reactive with other gases in the air. Ozone at ground level is unhealthy and is a component of smog. Ozone found high up in the atmosphere, called stratospheric ozone, protects us by shielding us from harmful ultraviolet (UV) light.
Ozone is a toxic air pollutant that is a concern for people's health when levels in outdoor are high. Ozone is the principal component of the mixture of air pollutants known as smog that is produced from the action of sunlight on air contaminants from automobile exhausts and other sources.zone levels are most likely to be elevated after noon through early evening on hot, sunny days. The United States Environmental Protection Agency (US EPA) last revised the National Ambient Air Quality Standard (NAAQS) for ozone in 2008.